root / target-ppc / kvm.c @ 60925d26
History | View | Annotate | Download (35.9 kB)
1 | d76d1650 | aurel32 | /*
|
---|---|---|---|
2 | d76d1650 | aurel32 | * PowerPC implementation of KVM hooks
|
3 | d76d1650 | aurel32 | *
|
4 | d76d1650 | aurel32 | * Copyright IBM Corp. 2007
|
5 | 90dc8812 | Scott Wood | * Copyright (C) 2011 Freescale Semiconductor, Inc.
|
6 | d76d1650 | aurel32 | *
|
7 | d76d1650 | aurel32 | * Authors:
|
8 | d76d1650 | aurel32 | * Jerone Young <jyoung5@us.ibm.com>
|
9 | d76d1650 | aurel32 | * Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
|
10 | d76d1650 | aurel32 | * Hollis Blanchard <hollisb@us.ibm.com>
|
11 | d76d1650 | aurel32 | *
|
12 | d76d1650 | aurel32 | * This work is licensed under the terms of the GNU GPL, version 2 or later.
|
13 | d76d1650 | aurel32 | * See the COPYING file in the top-level directory.
|
14 | d76d1650 | aurel32 | *
|
15 | d76d1650 | aurel32 | */
|
16 | d76d1650 | aurel32 | |
17 | eadaada1 | Alexander Graf | #include <dirent.h> |
18 | d76d1650 | aurel32 | #include <sys/types.h> |
19 | d76d1650 | aurel32 | #include <sys/ioctl.h> |
20 | d76d1650 | aurel32 | #include <sys/mman.h> |
21 | 4656e1f0 | Benjamin Herrenschmidt | #include <sys/vfs.h> |
22 | d76d1650 | aurel32 | |
23 | d76d1650 | aurel32 | #include <linux/kvm.h> |
24 | d76d1650 | aurel32 | |
25 | d76d1650 | aurel32 | #include "qemu-common.h" |
26 | 1de7afc9 | Paolo Bonzini | #include "qemu/timer.h" |
27 | 9c17d615 | Paolo Bonzini | #include "sysemu/sysemu.h" |
28 | 9c17d615 | Paolo Bonzini | #include "sysemu/kvm.h" |
29 | d76d1650 | aurel32 | #include "kvm_ppc.h" |
30 | d76d1650 | aurel32 | #include "cpu.h" |
31 | 9c17d615 | Paolo Bonzini | #include "sysemu/cpus.h" |
32 | 9c17d615 | Paolo Bonzini | #include "sysemu/device_tree.h" |
33 | 0f5cb298 | David Gibson | #include "hw/sysbus.h" |
34 | e97c3636 | David Gibson | #include "hw/spapr.h" |
35 | d76d1650 | aurel32 | |
36 | f61b4bed | Alexander Graf | #include "hw/sysbus.h" |
37 | f61b4bed | Alexander Graf | #include "hw/spapr.h" |
38 | f61b4bed | Alexander Graf | #include "hw/spapr_vio.h" |
39 | f61b4bed | Alexander Graf | |
40 | d76d1650 | aurel32 | //#define DEBUG_KVM
|
41 | d76d1650 | aurel32 | |
42 | d76d1650 | aurel32 | #ifdef DEBUG_KVM
|
43 | d76d1650 | aurel32 | #define dprintf(fmt, ...) \
|
44 | d76d1650 | aurel32 | do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0) |
45 | d76d1650 | aurel32 | #else
|
46 | d76d1650 | aurel32 | #define dprintf(fmt, ...) \
|
47 | d76d1650 | aurel32 | do { } while (0) |
48 | d76d1650 | aurel32 | #endif
|
49 | d76d1650 | aurel32 | |
50 | eadaada1 | Alexander Graf | #define PROC_DEVTREE_CPU "/proc/device-tree/cpus/" |
51 | eadaada1 | Alexander Graf | |
52 | 94a8d39a | Jan Kiszka | const KVMCapabilityInfo kvm_arch_required_capabilities[] = {
|
53 | 94a8d39a | Jan Kiszka | KVM_CAP_LAST_INFO |
54 | 94a8d39a | Jan Kiszka | }; |
55 | 94a8d39a | Jan Kiszka | |
56 | fc87e185 | Alexander Graf | static int cap_interrupt_unset = false; |
57 | fc87e185 | Alexander Graf | static int cap_interrupt_level = false; |
58 | 90dc8812 | Scott Wood | static int cap_segstate; |
59 | 90dc8812 | Scott Wood | static int cap_booke_sregs; |
60 | e97c3636 | David Gibson | static int cap_ppc_smt; |
61 | 354ac20a | David Gibson | static int cap_ppc_rma; |
62 | 0f5cb298 | David Gibson | static int cap_spapr_tce; |
63 | f1af19d7 | David Gibson | static int cap_hior; |
64 | fc87e185 | Alexander Graf | |
65 | c821c2bd | Alexander Graf | /* XXX We have a race condition where we actually have a level triggered
|
66 | c821c2bd | Alexander Graf | * interrupt, but the infrastructure can't expose that yet, so the guest
|
67 | c821c2bd | Alexander Graf | * takes but ignores it, goes to sleep and never gets notified that there's
|
68 | c821c2bd | Alexander Graf | * still an interrupt pending.
|
69 | c6a94ba5 | Alexander Graf | *
|
70 | c821c2bd | Alexander Graf | * As a quick workaround, let's just wake up again 20 ms after we injected
|
71 | c821c2bd | Alexander Graf | * an interrupt. That way we can assure that we're always reinjecting
|
72 | c821c2bd | Alexander Graf | * interrupts in case the guest swallowed them.
|
73 | c6a94ba5 | Alexander Graf | */
|
74 | c6a94ba5 | Alexander Graf | static QEMUTimer *idle_timer;
|
75 | c6a94ba5 | Alexander Graf | |
76 | d5a68146 | Andreas Färber | static void kvm_kick_cpu(void *opaque) |
77 | c6a94ba5 | Alexander Graf | { |
78 | d5a68146 | Andreas Färber | PowerPCCPU *cpu = opaque; |
79 | d5a68146 | Andreas Färber | |
80 | c08d7424 | Andreas Färber | qemu_cpu_kick(CPU(cpu)); |
81 | c6a94ba5 | Alexander Graf | } |
82 | c6a94ba5 | Alexander Graf | |
83 | cad1e282 | Jan Kiszka | int kvm_arch_init(KVMState *s)
|
84 | d76d1650 | aurel32 | { |
85 | fc87e185 | Alexander Graf | cap_interrupt_unset = kvm_check_extension(s, KVM_CAP_PPC_UNSET_IRQ); |
86 | fc87e185 | Alexander Graf | cap_interrupt_level = kvm_check_extension(s, KVM_CAP_PPC_IRQ_LEVEL); |
87 | 90dc8812 | Scott Wood | cap_segstate = kvm_check_extension(s, KVM_CAP_PPC_SEGSTATE); |
88 | 90dc8812 | Scott Wood | cap_booke_sregs = kvm_check_extension(s, KVM_CAP_PPC_BOOKE_SREGS); |
89 | e97c3636 | David Gibson | cap_ppc_smt = kvm_check_extension(s, KVM_CAP_PPC_SMT); |
90 | 354ac20a | David Gibson | cap_ppc_rma = kvm_check_extension(s, KVM_CAP_PPC_RMA); |
91 | 0f5cb298 | David Gibson | cap_spapr_tce = kvm_check_extension(s, KVM_CAP_SPAPR_TCE); |
92 | f1af19d7 | David Gibson | cap_hior = kvm_check_extension(s, KVM_CAP_PPC_HIOR); |
93 | fc87e185 | Alexander Graf | |
94 | fc87e185 | Alexander Graf | if (!cap_interrupt_level) {
|
95 | fc87e185 | Alexander Graf | fprintf(stderr, "KVM: Couldn't find level irq capability. Expect the "
|
96 | fc87e185 | Alexander Graf | "VM to stall at times!\n");
|
97 | fc87e185 | Alexander Graf | } |
98 | fc87e185 | Alexander Graf | |
99 | d76d1650 | aurel32 | return 0; |
100 | d76d1650 | aurel32 | } |
101 | d76d1650 | aurel32 | |
102 | 1bc22652 | Andreas Färber | static int kvm_arch_sync_sregs(PowerPCCPU *cpu) |
103 | d76d1650 | aurel32 | { |
104 | 1bc22652 | Andreas Färber | CPUPPCState *cenv = &cpu->env; |
105 | 1bc22652 | Andreas Färber | CPUState *cs = CPU(cpu); |
106 | 861bbc80 | Alexander Graf | struct kvm_sregs sregs;
|
107 | 5666ca4a | Scott Wood | int ret;
|
108 | 5666ca4a | Scott Wood | |
109 | 5666ca4a | Scott Wood | if (cenv->excp_model == POWERPC_EXCP_BOOKE) {
|
110 | 64e07be5 | Alexander Graf | /* What we're really trying to say is "if we're on BookE, we use
|
111 | 64e07be5 | Alexander Graf | the native PVR for now". This is the only sane way to check
|
112 | 64e07be5 | Alexander Graf | it though, so we potentially confuse users that they can run
|
113 | 64e07be5 | Alexander Graf | BookE guests on BookS. Let's hope nobody dares enough :) */
|
114 | 5666ca4a | Scott Wood | return 0; |
115 | 5666ca4a | Scott Wood | } else {
|
116 | 90dc8812 | Scott Wood | if (!cap_segstate) {
|
117 | 64e07be5 | Alexander Graf | fprintf(stderr, "kvm error: missing PVR setting capability\n");
|
118 | 64e07be5 | Alexander Graf | return -ENOSYS;
|
119 | 5666ca4a | Scott Wood | } |
120 | 5666ca4a | Scott Wood | } |
121 | 5666ca4a | Scott Wood | |
122 | 1bc22652 | Andreas Färber | ret = kvm_vcpu_ioctl(cs, KVM_GET_SREGS, &sregs); |
123 | 5666ca4a | Scott Wood | if (ret) {
|
124 | 5666ca4a | Scott Wood | return ret;
|
125 | 5666ca4a | Scott Wood | } |
126 | 861bbc80 | Alexander Graf | |
127 | 861bbc80 | Alexander Graf | sregs.pvr = cenv->spr[SPR_PVR]; |
128 | 1bc22652 | Andreas Färber | return kvm_vcpu_ioctl(cs, KVM_SET_SREGS, &sregs);
|
129 | 5666ca4a | Scott Wood | } |
130 | 5666ca4a | Scott Wood | |
131 | 93dd5e85 | Scott Wood | /* Set up a shared TLB array with KVM */
|
132 | 1bc22652 | Andreas Färber | static int kvm_booke206_tlb_init(PowerPCCPU *cpu) |
133 | 93dd5e85 | Scott Wood | { |
134 | 1bc22652 | Andreas Färber | CPUPPCState *env = &cpu->env; |
135 | 1bc22652 | Andreas Färber | CPUState *cs = CPU(cpu); |
136 | 93dd5e85 | Scott Wood | struct kvm_book3e_206_tlb_params params = {};
|
137 | 93dd5e85 | Scott Wood | struct kvm_config_tlb cfg = {};
|
138 | 93dd5e85 | Scott Wood | struct kvm_enable_cap encap = {};
|
139 | 93dd5e85 | Scott Wood | unsigned int entries = 0; |
140 | 93dd5e85 | Scott Wood | int ret, i;
|
141 | 93dd5e85 | Scott Wood | |
142 | 93dd5e85 | Scott Wood | if (!kvm_enabled() ||
|
143 | a60f24b5 | Andreas Färber | !kvm_check_extension(cs->kvm_state, KVM_CAP_SW_TLB)) { |
144 | 93dd5e85 | Scott Wood | return 0; |
145 | 93dd5e85 | Scott Wood | } |
146 | 93dd5e85 | Scott Wood | |
147 | 93dd5e85 | Scott Wood | assert(ARRAY_SIZE(params.tlb_sizes) == BOOKE206_MAX_TLBN); |
148 | 93dd5e85 | Scott Wood | |
149 | 93dd5e85 | Scott Wood | for (i = 0; i < BOOKE206_MAX_TLBN; i++) { |
150 | 93dd5e85 | Scott Wood | params.tlb_sizes[i] = booke206_tlb_size(env, i); |
151 | 93dd5e85 | Scott Wood | params.tlb_ways[i] = booke206_tlb_ways(env, i); |
152 | 93dd5e85 | Scott Wood | entries += params.tlb_sizes[i]; |
153 | 93dd5e85 | Scott Wood | } |
154 | 93dd5e85 | Scott Wood | |
155 | 93dd5e85 | Scott Wood | assert(entries == env->nb_tlb); |
156 | 93dd5e85 | Scott Wood | assert(sizeof(struct kvm_book3e_206_tlb_entry) == sizeof(ppcmas_tlb_t)); |
157 | 93dd5e85 | Scott Wood | |
158 | 93dd5e85 | Scott Wood | env->tlb_dirty = true;
|
159 | 93dd5e85 | Scott Wood | |
160 | 93dd5e85 | Scott Wood | cfg.array = (uintptr_t)env->tlb.tlbm; |
161 | 93dd5e85 | Scott Wood | cfg.array_len = sizeof(ppcmas_tlb_t) * entries;
|
162 | 93dd5e85 | Scott Wood | cfg.params = (uintptr_t)¶ms; |
163 | 93dd5e85 | Scott Wood | cfg.mmu_type = KVM_MMU_FSL_BOOKE_NOHV; |
164 | 93dd5e85 | Scott Wood | |
165 | 93dd5e85 | Scott Wood | encap.cap = KVM_CAP_SW_TLB; |
166 | 93dd5e85 | Scott Wood | encap.args[0] = (uintptr_t)&cfg;
|
167 | 93dd5e85 | Scott Wood | |
168 | 1bc22652 | Andreas Färber | ret = kvm_vcpu_ioctl(cs, KVM_ENABLE_CAP, &encap); |
169 | 93dd5e85 | Scott Wood | if (ret < 0) { |
170 | 93dd5e85 | Scott Wood | fprintf(stderr, "%s: couldn't enable KVM_CAP_SW_TLB: %s\n",
|
171 | 93dd5e85 | Scott Wood | __func__, strerror(-ret)); |
172 | 93dd5e85 | Scott Wood | return ret;
|
173 | 93dd5e85 | Scott Wood | } |
174 | 93dd5e85 | Scott Wood | |
175 | 93dd5e85 | Scott Wood | env->kvm_sw_tlb = true;
|
176 | 93dd5e85 | Scott Wood | return 0; |
177 | 93dd5e85 | Scott Wood | } |
178 | 93dd5e85 | Scott Wood | |
179 | 4656e1f0 | Benjamin Herrenschmidt | |
180 | 4656e1f0 | Benjamin Herrenschmidt | #if defined(TARGET_PPC64)
|
181 | a60f24b5 | Andreas Färber | static void kvm_get_fallback_smmu_info(PowerPCCPU *cpu, |
182 | 4656e1f0 | Benjamin Herrenschmidt | struct kvm_ppc_smmu_info *info)
|
183 | 4656e1f0 | Benjamin Herrenschmidt | { |
184 | a60f24b5 | Andreas Färber | CPUPPCState *env = &cpu->env; |
185 | a60f24b5 | Andreas Färber | CPUState *cs = CPU(cpu); |
186 | a60f24b5 | Andreas Färber | |
187 | 4656e1f0 | Benjamin Herrenschmidt | memset(info, 0, sizeof(*info)); |
188 | 4656e1f0 | Benjamin Herrenschmidt | |
189 | 4656e1f0 | Benjamin Herrenschmidt | /* We don't have the new KVM_PPC_GET_SMMU_INFO ioctl, so
|
190 | 4656e1f0 | Benjamin Herrenschmidt | * need to "guess" what the supported page sizes are.
|
191 | 4656e1f0 | Benjamin Herrenschmidt | *
|
192 | 4656e1f0 | Benjamin Herrenschmidt | * For that to work we make a few assumptions:
|
193 | 4656e1f0 | Benjamin Herrenschmidt | *
|
194 | 4656e1f0 | Benjamin Herrenschmidt | * - If KVM_CAP_PPC_GET_PVINFO is supported we are running "PR"
|
195 | 4656e1f0 | Benjamin Herrenschmidt | * KVM which only supports 4K and 16M pages, but supports them
|
196 | 4656e1f0 | Benjamin Herrenschmidt | * regardless of the backing store characteritics. We also don't
|
197 | 4656e1f0 | Benjamin Herrenschmidt | * support 1T segments.
|
198 | 4656e1f0 | Benjamin Herrenschmidt | *
|
199 | 4656e1f0 | Benjamin Herrenschmidt | * This is safe as if HV KVM ever supports that capability or PR
|
200 | 4656e1f0 | Benjamin Herrenschmidt | * KVM grows supports for more page/segment sizes, those versions
|
201 | 4656e1f0 | Benjamin Herrenschmidt | * will have implemented KVM_CAP_PPC_GET_SMMU_INFO and thus we
|
202 | 4656e1f0 | Benjamin Herrenschmidt | * will not hit this fallback
|
203 | 4656e1f0 | Benjamin Herrenschmidt | *
|
204 | 4656e1f0 | Benjamin Herrenschmidt | * - Else we are running HV KVM. This means we only support page
|
205 | 4656e1f0 | Benjamin Herrenschmidt | * sizes that fit in the backing store. Additionally we only
|
206 | 4656e1f0 | Benjamin Herrenschmidt | * advertize 64K pages if the processor is ARCH 2.06 and we assume
|
207 | 4656e1f0 | Benjamin Herrenschmidt | * P7 encodings for the SLB and hash table. Here too, we assume
|
208 | 4656e1f0 | Benjamin Herrenschmidt | * support for any newer processor will mean a kernel that
|
209 | 4656e1f0 | Benjamin Herrenschmidt | * implements KVM_CAP_PPC_GET_SMMU_INFO and thus doesn't hit
|
210 | 4656e1f0 | Benjamin Herrenschmidt | * this fallback.
|
211 | 4656e1f0 | Benjamin Herrenschmidt | */
|
212 | a60f24b5 | Andreas Färber | if (kvm_check_extension(cs->kvm_state, KVM_CAP_PPC_GET_PVINFO)) {
|
213 | 4656e1f0 | Benjamin Herrenschmidt | /* No flags */
|
214 | 4656e1f0 | Benjamin Herrenschmidt | info->flags = 0;
|
215 | 4656e1f0 | Benjamin Herrenschmidt | info->slb_size = 64;
|
216 | 4656e1f0 | Benjamin Herrenschmidt | |
217 | 4656e1f0 | Benjamin Herrenschmidt | /* Standard 4k base page size segment */
|
218 | 4656e1f0 | Benjamin Herrenschmidt | info->sps[0].page_shift = 12; |
219 | 4656e1f0 | Benjamin Herrenschmidt | info->sps[0].slb_enc = 0; |
220 | 4656e1f0 | Benjamin Herrenschmidt | info->sps[0].enc[0].page_shift = 12; |
221 | 4656e1f0 | Benjamin Herrenschmidt | info->sps[0].enc[0].pte_enc = 0; |
222 | 4656e1f0 | Benjamin Herrenschmidt | |
223 | 4656e1f0 | Benjamin Herrenschmidt | /* Standard 16M large page size segment */
|
224 | 4656e1f0 | Benjamin Herrenschmidt | info->sps[1].page_shift = 24; |
225 | 4656e1f0 | Benjamin Herrenschmidt | info->sps[1].slb_enc = SLB_VSID_L;
|
226 | 4656e1f0 | Benjamin Herrenschmidt | info->sps[1].enc[0].page_shift = 24; |
227 | 4656e1f0 | Benjamin Herrenschmidt | info->sps[1].enc[0].pte_enc = 0; |
228 | 4656e1f0 | Benjamin Herrenschmidt | } else {
|
229 | 4656e1f0 | Benjamin Herrenschmidt | int i = 0; |
230 | 4656e1f0 | Benjamin Herrenschmidt | |
231 | 4656e1f0 | Benjamin Herrenschmidt | /* HV KVM has backing store size restrictions */
|
232 | 4656e1f0 | Benjamin Herrenschmidt | info->flags = KVM_PPC_PAGE_SIZES_REAL; |
233 | 4656e1f0 | Benjamin Herrenschmidt | |
234 | 4656e1f0 | Benjamin Herrenschmidt | if (env->mmu_model & POWERPC_MMU_1TSEG) {
|
235 | 4656e1f0 | Benjamin Herrenschmidt | info->flags |= KVM_PPC_1T_SEGMENTS; |
236 | 4656e1f0 | Benjamin Herrenschmidt | } |
237 | 4656e1f0 | Benjamin Herrenschmidt | |
238 | 4656e1f0 | Benjamin Herrenschmidt | if (env->mmu_model == POWERPC_MMU_2_06) {
|
239 | 4656e1f0 | Benjamin Herrenschmidt | info->slb_size = 32;
|
240 | 4656e1f0 | Benjamin Herrenschmidt | } else {
|
241 | 4656e1f0 | Benjamin Herrenschmidt | info->slb_size = 64;
|
242 | 4656e1f0 | Benjamin Herrenschmidt | } |
243 | 4656e1f0 | Benjamin Herrenschmidt | |
244 | 4656e1f0 | Benjamin Herrenschmidt | /* Standard 4k base page size segment */
|
245 | 4656e1f0 | Benjamin Herrenschmidt | info->sps[i].page_shift = 12;
|
246 | 4656e1f0 | Benjamin Herrenschmidt | info->sps[i].slb_enc = 0;
|
247 | 4656e1f0 | Benjamin Herrenschmidt | info->sps[i].enc[0].page_shift = 12; |
248 | 4656e1f0 | Benjamin Herrenschmidt | info->sps[i].enc[0].pte_enc = 0; |
249 | 4656e1f0 | Benjamin Herrenschmidt | i++; |
250 | 4656e1f0 | Benjamin Herrenschmidt | |
251 | 4656e1f0 | Benjamin Herrenschmidt | /* 64K on MMU 2.06 */
|
252 | 4656e1f0 | Benjamin Herrenschmidt | if (env->mmu_model == POWERPC_MMU_2_06) {
|
253 | 4656e1f0 | Benjamin Herrenschmidt | info->sps[i].page_shift = 16;
|
254 | 4656e1f0 | Benjamin Herrenschmidt | info->sps[i].slb_enc = 0x110;
|
255 | 4656e1f0 | Benjamin Herrenschmidt | info->sps[i].enc[0].page_shift = 16; |
256 | 4656e1f0 | Benjamin Herrenschmidt | info->sps[i].enc[0].pte_enc = 1; |
257 | 4656e1f0 | Benjamin Herrenschmidt | i++; |
258 | 4656e1f0 | Benjamin Herrenschmidt | } |
259 | 4656e1f0 | Benjamin Herrenschmidt | |
260 | 4656e1f0 | Benjamin Herrenschmidt | /* Standard 16M large page size segment */
|
261 | 4656e1f0 | Benjamin Herrenschmidt | info->sps[i].page_shift = 24;
|
262 | 4656e1f0 | Benjamin Herrenschmidt | info->sps[i].slb_enc = SLB_VSID_L; |
263 | 4656e1f0 | Benjamin Herrenschmidt | info->sps[i].enc[0].page_shift = 24; |
264 | 4656e1f0 | Benjamin Herrenschmidt | info->sps[i].enc[0].pte_enc = 0; |
265 | 4656e1f0 | Benjamin Herrenschmidt | } |
266 | 4656e1f0 | Benjamin Herrenschmidt | } |
267 | 4656e1f0 | Benjamin Herrenschmidt | |
268 | a60f24b5 | Andreas Färber | static void kvm_get_smmu_info(PowerPCCPU *cpu, struct kvm_ppc_smmu_info *info) |
269 | 4656e1f0 | Benjamin Herrenschmidt | { |
270 | a60f24b5 | Andreas Färber | CPUState *cs = CPU(cpu); |
271 | 4656e1f0 | Benjamin Herrenschmidt | int ret;
|
272 | 4656e1f0 | Benjamin Herrenschmidt | |
273 | a60f24b5 | Andreas Färber | if (kvm_check_extension(cs->kvm_state, KVM_CAP_PPC_GET_SMMU_INFO)) {
|
274 | a60f24b5 | Andreas Färber | ret = kvm_vm_ioctl(cs->kvm_state, KVM_PPC_GET_SMMU_INFO, info); |
275 | 4656e1f0 | Benjamin Herrenschmidt | if (ret == 0) { |
276 | 4656e1f0 | Benjamin Herrenschmidt | return;
|
277 | 4656e1f0 | Benjamin Herrenschmidt | } |
278 | 4656e1f0 | Benjamin Herrenschmidt | } |
279 | 4656e1f0 | Benjamin Herrenschmidt | |
280 | a60f24b5 | Andreas Färber | kvm_get_fallback_smmu_info(cpu, info); |
281 | 4656e1f0 | Benjamin Herrenschmidt | } |
282 | 4656e1f0 | Benjamin Herrenschmidt | |
283 | 4656e1f0 | Benjamin Herrenschmidt | static long getrampagesize(void) |
284 | 4656e1f0 | Benjamin Herrenschmidt | { |
285 | 4656e1f0 | Benjamin Herrenschmidt | struct statfs fs;
|
286 | 4656e1f0 | Benjamin Herrenschmidt | int ret;
|
287 | 4656e1f0 | Benjamin Herrenschmidt | |
288 | 4656e1f0 | Benjamin Herrenschmidt | if (!mem_path) {
|
289 | 4656e1f0 | Benjamin Herrenschmidt | /* guest RAM is backed by normal anonymous pages */
|
290 | 4656e1f0 | Benjamin Herrenschmidt | return getpagesize();
|
291 | 4656e1f0 | Benjamin Herrenschmidt | } |
292 | 4656e1f0 | Benjamin Herrenschmidt | |
293 | 4656e1f0 | Benjamin Herrenschmidt | do {
|
294 | 4656e1f0 | Benjamin Herrenschmidt | ret = statfs(mem_path, &fs); |
295 | 4656e1f0 | Benjamin Herrenschmidt | } while (ret != 0 && errno == EINTR); |
296 | 4656e1f0 | Benjamin Herrenschmidt | |
297 | 4656e1f0 | Benjamin Herrenschmidt | if (ret != 0) { |
298 | 4656e1f0 | Benjamin Herrenschmidt | fprintf(stderr, "Couldn't statfs() memory path: %s\n",
|
299 | 4656e1f0 | Benjamin Herrenschmidt | strerror(errno)); |
300 | 4656e1f0 | Benjamin Herrenschmidt | exit(1);
|
301 | 4656e1f0 | Benjamin Herrenschmidt | } |
302 | 4656e1f0 | Benjamin Herrenschmidt | |
303 | 4656e1f0 | Benjamin Herrenschmidt | #define HUGETLBFS_MAGIC 0x958458f6 |
304 | 4656e1f0 | Benjamin Herrenschmidt | |
305 | 4656e1f0 | Benjamin Herrenschmidt | if (fs.f_type != HUGETLBFS_MAGIC) {
|
306 | 4656e1f0 | Benjamin Herrenschmidt | /* Explicit mempath, but it's ordinary pages */
|
307 | 4656e1f0 | Benjamin Herrenschmidt | return getpagesize();
|
308 | 4656e1f0 | Benjamin Herrenschmidt | } |
309 | 4656e1f0 | Benjamin Herrenschmidt | |
310 | 4656e1f0 | Benjamin Herrenschmidt | /* It's hugepage, return the huge page size */
|
311 | 4656e1f0 | Benjamin Herrenschmidt | return fs.f_bsize;
|
312 | 4656e1f0 | Benjamin Herrenschmidt | } |
313 | 4656e1f0 | Benjamin Herrenschmidt | |
314 | 4656e1f0 | Benjamin Herrenschmidt | static bool kvm_valid_page_size(uint32_t flags, long rampgsize, uint32_t shift) |
315 | 4656e1f0 | Benjamin Herrenschmidt | { |
316 | 4656e1f0 | Benjamin Herrenschmidt | if (!(flags & KVM_PPC_PAGE_SIZES_REAL)) {
|
317 | 4656e1f0 | Benjamin Herrenschmidt | return true; |
318 | 4656e1f0 | Benjamin Herrenschmidt | } |
319 | 4656e1f0 | Benjamin Herrenschmidt | |
320 | 4656e1f0 | Benjamin Herrenschmidt | return (1ul << shift) <= rampgsize; |
321 | 4656e1f0 | Benjamin Herrenschmidt | } |
322 | 4656e1f0 | Benjamin Herrenschmidt | |
323 | a60f24b5 | Andreas Färber | static void kvm_fixup_page_sizes(PowerPCCPU *cpu) |
324 | 4656e1f0 | Benjamin Herrenschmidt | { |
325 | 4656e1f0 | Benjamin Herrenschmidt | static struct kvm_ppc_smmu_info smmu_info; |
326 | 4656e1f0 | Benjamin Herrenschmidt | static bool has_smmu_info; |
327 | a60f24b5 | Andreas Färber | CPUPPCState *env = &cpu->env; |
328 | 4656e1f0 | Benjamin Herrenschmidt | long rampagesize;
|
329 | 4656e1f0 | Benjamin Herrenschmidt | int iq, ik, jq, jk;
|
330 | 4656e1f0 | Benjamin Herrenschmidt | |
331 | 4656e1f0 | Benjamin Herrenschmidt | /* We only handle page sizes for 64-bit server guests for now */
|
332 | 4656e1f0 | Benjamin Herrenschmidt | if (!(env->mmu_model & POWERPC_MMU_64)) {
|
333 | 4656e1f0 | Benjamin Herrenschmidt | return;
|
334 | 4656e1f0 | Benjamin Herrenschmidt | } |
335 | 4656e1f0 | Benjamin Herrenschmidt | |
336 | 4656e1f0 | Benjamin Herrenschmidt | /* Collect MMU info from kernel if not already */
|
337 | 4656e1f0 | Benjamin Herrenschmidt | if (!has_smmu_info) {
|
338 | a60f24b5 | Andreas Färber | kvm_get_smmu_info(cpu, &smmu_info); |
339 | 4656e1f0 | Benjamin Herrenschmidt | has_smmu_info = true;
|
340 | 4656e1f0 | Benjamin Herrenschmidt | } |
341 | 4656e1f0 | Benjamin Herrenschmidt | |
342 | 4656e1f0 | Benjamin Herrenschmidt | rampagesize = getrampagesize(); |
343 | 4656e1f0 | Benjamin Herrenschmidt | |
344 | 4656e1f0 | Benjamin Herrenschmidt | /* Convert to QEMU form */
|
345 | 4656e1f0 | Benjamin Herrenschmidt | memset(&env->sps, 0, sizeof(env->sps)); |
346 | 4656e1f0 | Benjamin Herrenschmidt | |
347 | 4656e1f0 | Benjamin Herrenschmidt | for (ik = iq = 0; ik < KVM_PPC_PAGE_SIZES_MAX_SZ; ik++) { |
348 | 4656e1f0 | Benjamin Herrenschmidt | struct ppc_one_seg_page_size *qsps = &env->sps.sps[iq];
|
349 | 4656e1f0 | Benjamin Herrenschmidt | struct kvm_ppc_one_seg_page_size *ksps = &smmu_info.sps[ik];
|
350 | 4656e1f0 | Benjamin Herrenschmidt | |
351 | 4656e1f0 | Benjamin Herrenschmidt | if (!kvm_valid_page_size(smmu_info.flags, rampagesize,
|
352 | 4656e1f0 | Benjamin Herrenschmidt | ksps->page_shift)) { |
353 | 4656e1f0 | Benjamin Herrenschmidt | continue;
|
354 | 4656e1f0 | Benjamin Herrenschmidt | } |
355 | 4656e1f0 | Benjamin Herrenschmidt | qsps->page_shift = ksps->page_shift; |
356 | 4656e1f0 | Benjamin Herrenschmidt | qsps->slb_enc = ksps->slb_enc; |
357 | 4656e1f0 | Benjamin Herrenschmidt | for (jk = jq = 0; jk < KVM_PPC_PAGE_SIZES_MAX_SZ; jk++) { |
358 | 4656e1f0 | Benjamin Herrenschmidt | if (!kvm_valid_page_size(smmu_info.flags, rampagesize,
|
359 | 4656e1f0 | Benjamin Herrenschmidt | ksps->enc[jk].page_shift)) { |
360 | 4656e1f0 | Benjamin Herrenschmidt | continue;
|
361 | 4656e1f0 | Benjamin Herrenschmidt | } |
362 | 4656e1f0 | Benjamin Herrenschmidt | qsps->enc[jq].page_shift = ksps->enc[jk].page_shift; |
363 | 4656e1f0 | Benjamin Herrenschmidt | qsps->enc[jq].pte_enc = ksps->enc[jk].pte_enc; |
364 | 4656e1f0 | Benjamin Herrenschmidt | if (++jq >= PPC_PAGE_SIZES_MAX_SZ) {
|
365 | 4656e1f0 | Benjamin Herrenschmidt | break;
|
366 | 4656e1f0 | Benjamin Herrenschmidt | } |
367 | 4656e1f0 | Benjamin Herrenschmidt | } |
368 | 4656e1f0 | Benjamin Herrenschmidt | if (++iq >= PPC_PAGE_SIZES_MAX_SZ) {
|
369 | 4656e1f0 | Benjamin Herrenschmidt | break;
|
370 | 4656e1f0 | Benjamin Herrenschmidt | } |
371 | 4656e1f0 | Benjamin Herrenschmidt | } |
372 | 4656e1f0 | Benjamin Herrenschmidt | env->slb_nr = smmu_info.slb_size; |
373 | 4656e1f0 | Benjamin Herrenschmidt | if (smmu_info.flags & KVM_PPC_1T_SEGMENTS) {
|
374 | 4656e1f0 | Benjamin Herrenschmidt | env->mmu_model |= POWERPC_MMU_1TSEG; |
375 | 4656e1f0 | Benjamin Herrenschmidt | } else {
|
376 | 4656e1f0 | Benjamin Herrenschmidt | env->mmu_model &= ~POWERPC_MMU_1TSEG; |
377 | 4656e1f0 | Benjamin Herrenschmidt | } |
378 | 4656e1f0 | Benjamin Herrenschmidt | } |
379 | 4656e1f0 | Benjamin Herrenschmidt | #else /* defined (TARGET_PPC64) */ |
380 | 4656e1f0 | Benjamin Herrenschmidt | |
381 | a60f24b5 | Andreas Färber | static inline void kvm_fixup_page_sizes(PowerPCCPU *cpu) |
382 | 4656e1f0 | Benjamin Herrenschmidt | { |
383 | 4656e1f0 | Benjamin Herrenschmidt | } |
384 | 4656e1f0 | Benjamin Herrenschmidt | |
385 | 4656e1f0 | Benjamin Herrenschmidt | #endif /* !defined (TARGET_PPC64) */ |
386 | 4656e1f0 | Benjamin Herrenschmidt | |
387 | b164e48e | Eduardo Habkost | unsigned long kvm_arch_vcpu_id(CPUState *cpu) |
388 | b164e48e | Eduardo Habkost | { |
389 | b164e48e | Eduardo Habkost | return cpu->cpu_index;
|
390 | b164e48e | Eduardo Habkost | } |
391 | b164e48e | Eduardo Habkost | |
392 | 20d695a9 | Andreas Färber | int kvm_arch_init_vcpu(CPUState *cs)
|
393 | 5666ca4a | Scott Wood | { |
394 | 20d695a9 | Andreas Färber | PowerPCCPU *cpu = POWERPC_CPU(cs); |
395 | 20d695a9 | Andreas Färber | CPUPPCState *cenv = &cpu->env; |
396 | 5666ca4a | Scott Wood | int ret;
|
397 | 5666ca4a | Scott Wood | |
398 | 4656e1f0 | Benjamin Herrenschmidt | /* Gather server mmu info from KVM and update the CPU state */
|
399 | a60f24b5 | Andreas Färber | kvm_fixup_page_sizes(cpu); |
400 | 4656e1f0 | Benjamin Herrenschmidt | |
401 | 4656e1f0 | Benjamin Herrenschmidt | /* Synchronize sregs with kvm */
|
402 | 1bc22652 | Andreas Färber | ret = kvm_arch_sync_sregs(cpu); |
403 | 5666ca4a | Scott Wood | if (ret) {
|
404 | 5666ca4a | Scott Wood | return ret;
|
405 | 5666ca4a | Scott Wood | } |
406 | 861bbc80 | Alexander Graf | |
407 | d5a68146 | Andreas Färber | idle_timer = qemu_new_timer_ns(vm_clock, kvm_kick_cpu, cpu); |
408 | c821c2bd | Alexander Graf | |
409 | 93dd5e85 | Scott Wood | /* Some targets support access to KVM's guest TLB. */
|
410 | 93dd5e85 | Scott Wood | switch (cenv->mmu_model) {
|
411 | 93dd5e85 | Scott Wood | case POWERPC_MMU_BOOKE206:
|
412 | 1bc22652 | Andreas Färber | ret = kvm_booke206_tlb_init(cpu); |
413 | 93dd5e85 | Scott Wood | break;
|
414 | 93dd5e85 | Scott Wood | default:
|
415 | 93dd5e85 | Scott Wood | break;
|
416 | 93dd5e85 | Scott Wood | } |
417 | 93dd5e85 | Scott Wood | |
418 | 861bbc80 | Alexander Graf | return ret;
|
419 | d76d1650 | aurel32 | } |
420 | d76d1650 | aurel32 | |
421 | 20d695a9 | Andreas Färber | void kvm_arch_reset_vcpu(CPUState *cpu)
|
422 | caa5af0f | Jan Kiszka | { |
423 | caa5af0f | Jan Kiszka | } |
424 | caa5af0f | Jan Kiszka | |
425 | 1bc22652 | Andreas Färber | static void kvm_sw_tlb_put(PowerPCCPU *cpu) |
426 | 93dd5e85 | Scott Wood | { |
427 | 1bc22652 | Andreas Färber | CPUPPCState *env = &cpu->env; |
428 | 1bc22652 | Andreas Färber | CPUState *cs = CPU(cpu); |
429 | 93dd5e85 | Scott Wood | struct kvm_dirty_tlb dirty_tlb;
|
430 | 93dd5e85 | Scott Wood | unsigned char *bitmap; |
431 | 93dd5e85 | Scott Wood | int ret;
|
432 | 93dd5e85 | Scott Wood | |
433 | 93dd5e85 | Scott Wood | if (!env->kvm_sw_tlb) {
|
434 | 93dd5e85 | Scott Wood | return;
|
435 | 93dd5e85 | Scott Wood | } |
436 | 93dd5e85 | Scott Wood | |
437 | 93dd5e85 | Scott Wood | bitmap = g_malloc((env->nb_tlb + 7) / 8); |
438 | 93dd5e85 | Scott Wood | memset(bitmap, 0xFF, (env->nb_tlb + 7) / 8); |
439 | 93dd5e85 | Scott Wood | |
440 | 93dd5e85 | Scott Wood | dirty_tlb.bitmap = (uintptr_t)bitmap; |
441 | 93dd5e85 | Scott Wood | dirty_tlb.num_dirty = env->nb_tlb; |
442 | 93dd5e85 | Scott Wood | |
443 | 1bc22652 | Andreas Färber | ret = kvm_vcpu_ioctl(cs, KVM_DIRTY_TLB, &dirty_tlb); |
444 | 93dd5e85 | Scott Wood | if (ret) {
|
445 | 93dd5e85 | Scott Wood | fprintf(stderr, "%s: KVM_DIRTY_TLB: %s\n",
|
446 | 93dd5e85 | Scott Wood | __func__, strerror(-ret)); |
447 | 93dd5e85 | Scott Wood | } |
448 | 93dd5e85 | Scott Wood | |
449 | 93dd5e85 | Scott Wood | g_free(bitmap); |
450 | 93dd5e85 | Scott Wood | } |
451 | 93dd5e85 | Scott Wood | |
452 | 20d695a9 | Andreas Färber | int kvm_arch_put_registers(CPUState *cs, int level) |
453 | d76d1650 | aurel32 | { |
454 | 20d695a9 | Andreas Färber | PowerPCCPU *cpu = POWERPC_CPU(cs); |
455 | 20d695a9 | Andreas Färber | CPUPPCState *env = &cpu->env; |
456 | d76d1650 | aurel32 | struct kvm_regs regs;
|
457 | d76d1650 | aurel32 | int ret;
|
458 | d76d1650 | aurel32 | int i;
|
459 | d76d1650 | aurel32 | |
460 | 1bc22652 | Andreas Färber | ret = kvm_vcpu_ioctl(cs, KVM_GET_REGS, ®s); |
461 | 1bc22652 | Andreas Färber | if (ret < 0) { |
462 | d76d1650 | aurel32 | return ret;
|
463 | 1bc22652 | Andreas Färber | } |
464 | d76d1650 | aurel32 | |
465 | d76d1650 | aurel32 | regs.ctr = env->ctr; |
466 | d76d1650 | aurel32 | regs.lr = env->lr; |
467 | d76d1650 | aurel32 | regs.xer = env->xer; |
468 | d76d1650 | aurel32 | regs.msr = env->msr; |
469 | d76d1650 | aurel32 | regs.pc = env->nip; |
470 | d76d1650 | aurel32 | |
471 | d76d1650 | aurel32 | regs.srr0 = env->spr[SPR_SRR0]; |
472 | d76d1650 | aurel32 | regs.srr1 = env->spr[SPR_SRR1]; |
473 | d76d1650 | aurel32 | |
474 | d76d1650 | aurel32 | regs.sprg0 = env->spr[SPR_SPRG0]; |
475 | d76d1650 | aurel32 | regs.sprg1 = env->spr[SPR_SPRG1]; |
476 | d76d1650 | aurel32 | regs.sprg2 = env->spr[SPR_SPRG2]; |
477 | d76d1650 | aurel32 | regs.sprg3 = env->spr[SPR_SPRG3]; |
478 | d76d1650 | aurel32 | regs.sprg4 = env->spr[SPR_SPRG4]; |
479 | d76d1650 | aurel32 | regs.sprg5 = env->spr[SPR_SPRG5]; |
480 | d76d1650 | aurel32 | regs.sprg6 = env->spr[SPR_SPRG6]; |
481 | d76d1650 | aurel32 | regs.sprg7 = env->spr[SPR_SPRG7]; |
482 | d76d1650 | aurel32 | |
483 | 90dc8812 | Scott Wood | regs.pid = env->spr[SPR_BOOKE_PID]; |
484 | 90dc8812 | Scott Wood | |
485 | d76d1650 | aurel32 | for (i = 0;i < 32; i++) |
486 | d76d1650 | aurel32 | regs.gpr[i] = env->gpr[i]; |
487 | d76d1650 | aurel32 | |
488 | 1bc22652 | Andreas Färber | ret = kvm_vcpu_ioctl(cs, KVM_SET_REGS, ®s); |
489 | d76d1650 | aurel32 | if (ret < 0) |
490 | d76d1650 | aurel32 | return ret;
|
491 | d76d1650 | aurel32 | |
492 | 93dd5e85 | Scott Wood | if (env->tlb_dirty) {
|
493 | 1bc22652 | Andreas Färber | kvm_sw_tlb_put(cpu); |
494 | 93dd5e85 | Scott Wood | env->tlb_dirty = false;
|
495 | 93dd5e85 | Scott Wood | } |
496 | 93dd5e85 | Scott Wood | |
497 | f1af19d7 | David Gibson | if (cap_segstate && (level >= KVM_PUT_RESET_STATE)) {
|
498 | f1af19d7 | David Gibson | struct kvm_sregs sregs;
|
499 | f1af19d7 | David Gibson | |
500 | f1af19d7 | David Gibson | sregs.pvr = env->spr[SPR_PVR]; |
501 | f1af19d7 | David Gibson | |
502 | f1af19d7 | David Gibson | sregs.u.s.sdr1 = env->spr[SPR_SDR1]; |
503 | f1af19d7 | David Gibson | |
504 | f1af19d7 | David Gibson | /* Sync SLB */
|
505 | f1af19d7 | David Gibson | #ifdef TARGET_PPC64
|
506 | f1af19d7 | David Gibson | for (i = 0; i < 64; i++) { |
507 | f1af19d7 | David Gibson | sregs.u.s.ppc64.slb[i].slbe = env->slb[i].esid; |
508 | f1af19d7 | David Gibson | sregs.u.s.ppc64.slb[i].slbv = env->slb[i].vsid; |
509 | f1af19d7 | David Gibson | } |
510 | f1af19d7 | David Gibson | #endif
|
511 | f1af19d7 | David Gibson | |
512 | f1af19d7 | David Gibson | /* Sync SRs */
|
513 | f1af19d7 | David Gibson | for (i = 0; i < 16; i++) { |
514 | f1af19d7 | David Gibson | sregs.u.s.ppc32.sr[i] = env->sr[i]; |
515 | f1af19d7 | David Gibson | } |
516 | f1af19d7 | David Gibson | |
517 | f1af19d7 | David Gibson | /* Sync BATs */
|
518 | f1af19d7 | David Gibson | for (i = 0; i < 8; i++) { |
519 | ef8beb0e | Alexander Graf | /* Beware. We have to swap upper and lower bits here */
|
520 | ef8beb0e | Alexander Graf | sregs.u.s.ppc32.dbat[i] = ((uint64_t)env->DBAT[0][i] << 32) |
521 | ef8beb0e | Alexander Graf | | env->DBAT[1][i];
|
522 | ef8beb0e | Alexander Graf | sregs.u.s.ppc32.ibat[i] = ((uint64_t)env->IBAT[0][i] << 32) |
523 | ef8beb0e | Alexander Graf | | env->IBAT[1][i];
|
524 | f1af19d7 | David Gibson | } |
525 | f1af19d7 | David Gibson | |
526 | 1bc22652 | Andreas Färber | ret = kvm_vcpu_ioctl(cs, KVM_SET_SREGS, &sregs); |
527 | f1af19d7 | David Gibson | if (ret) {
|
528 | f1af19d7 | David Gibson | return ret;
|
529 | f1af19d7 | David Gibson | } |
530 | f1af19d7 | David Gibson | } |
531 | f1af19d7 | David Gibson | |
532 | f1af19d7 | David Gibson | if (cap_hior && (level >= KVM_PUT_RESET_STATE)) {
|
533 | f1af19d7 | David Gibson | uint64_t hior = env->spr[SPR_HIOR]; |
534 | f1af19d7 | David Gibson | struct kvm_one_reg reg = {
|
535 | f1af19d7 | David Gibson | .id = KVM_REG_PPC_HIOR, |
536 | f1af19d7 | David Gibson | .addr = (uintptr_t) &hior, |
537 | f1af19d7 | David Gibson | }; |
538 | f1af19d7 | David Gibson | |
539 | 1bc22652 | Andreas Färber | ret = kvm_vcpu_ioctl(cs, KVM_SET_ONE_REG, ®); |
540 | f1af19d7 | David Gibson | if (ret) {
|
541 | f1af19d7 | David Gibson | return ret;
|
542 | f1af19d7 | David Gibson | } |
543 | f1af19d7 | David Gibson | } |
544 | f1af19d7 | David Gibson | |
545 | d76d1650 | aurel32 | return ret;
|
546 | d76d1650 | aurel32 | } |
547 | d76d1650 | aurel32 | |
548 | 20d695a9 | Andreas Färber | int kvm_arch_get_registers(CPUState *cs)
|
549 | d76d1650 | aurel32 | { |
550 | 20d695a9 | Andreas Färber | PowerPCCPU *cpu = POWERPC_CPU(cs); |
551 | 20d695a9 | Andreas Färber | CPUPPCState *env = &cpu->env; |
552 | d76d1650 | aurel32 | struct kvm_regs regs;
|
553 | ba5e5090 | Alexander Graf | struct kvm_sregs sregs;
|
554 | 90dc8812 | Scott Wood | uint32_t cr; |
555 | 138b38b6 | Alexander Graf | int i, ret;
|
556 | d76d1650 | aurel32 | |
557 | 1bc22652 | Andreas Färber | ret = kvm_vcpu_ioctl(cs, KVM_GET_REGS, ®s); |
558 | d76d1650 | aurel32 | if (ret < 0) |
559 | d76d1650 | aurel32 | return ret;
|
560 | d76d1650 | aurel32 | |
561 | 90dc8812 | Scott Wood | cr = regs.cr; |
562 | 90dc8812 | Scott Wood | for (i = 7; i >= 0; i--) { |
563 | 90dc8812 | Scott Wood | env->crf[i] = cr & 15;
|
564 | 90dc8812 | Scott Wood | cr >>= 4;
|
565 | 90dc8812 | Scott Wood | } |
566 | ba5e5090 | Alexander Graf | |
567 | d76d1650 | aurel32 | env->ctr = regs.ctr; |
568 | d76d1650 | aurel32 | env->lr = regs.lr; |
569 | d76d1650 | aurel32 | env->xer = regs.xer; |
570 | d76d1650 | aurel32 | env->msr = regs.msr; |
571 | d76d1650 | aurel32 | env->nip = regs.pc; |
572 | d76d1650 | aurel32 | |
573 | d76d1650 | aurel32 | env->spr[SPR_SRR0] = regs.srr0; |
574 | d76d1650 | aurel32 | env->spr[SPR_SRR1] = regs.srr1; |
575 | d76d1650 | aurel32 | |
576 | d76d1650 | aurel32 | env->spr[SPR_SPRG0] = regs.sprg0; |
577 | d76d1650 | aurel32 | env->spr[SPR_SPRG1] = regs.sprg1; |
578 | d76d1650 | aurel32 | env->spr[SPR_SPRG2] = regs.sprg2; |
579 | d76d1650 | aurel32 | env->spr[SPR_SPRG3] = regs.sprg3; |
580 | d76d1650 | aurel32 | env->spr[SPR_SPRG4] = regs.sprg4; |
581 | d76d1650 | aurel32 | env->spr[SPR_SPRG5] = regs.sprg5; |
582 | d76d1650 | aurel32 | env->spr[SPR_SPRG6] = regs.sprg6; |
583 | d76d1650 | aurel32 | env->spr[SPR_SPRG7] = regs.sprg7; |
584 | d76d1650 | aurel32 | |
585 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_PID] = regs.pid; |
586 | 90dc8812 | Scott Wood | |
587 | d76d1650 | aurel32 | for (i = 0;i < 32; i++) |
588 | d76d1650 | aurel32 | env->gpr[i] = regs.gpr[i]; |
589 | d76d1650 | aurel32 | |
590 | 90dc8812 | Scott Wood | if (cap_booke_sregs) {
|
591 | 1bc22652 | Andreas Färber | ret = kvm_vcpu_ioctl(cs, KVM_GET_SREGS, &sregs); |
592 | 90dc8812 | Scott Wood | if (ret < 0) { |
593 | 90dc8812 | Scott Wood | return ret;
|
594 | 90dc8812 | Scott Wood | } |
595 | 90dc8812 | Scott Wood | |
596 | 90dc8812 | Scott Wood | if (sregs.u.e.features & KVM_SREGS_E_BASE) {
|
597 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_CSRR0] = sregs.u.e.csrr0; |
598 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_CSRR1] = sregs.u.e.csrr1; |
599 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_ESR] = sregs.u.e.esr; |
600 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_DEAR] = sregs.u.e.dear; |
601 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_MCSR] = sregs.u.e.mcsr; |
602 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_TSR] = sregs.u.e.tsr; |
603 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_TCR] = sregs.u.e.tcr; |
604 | 90dc8812 | Scott Wood | env->spr[SPR_DECR] = sregs.u.e.dec; |
605 | 90dc8812 | Scott Wood | env->spr[SPR_TBL] = sregs.u.e.tb & 0xffffffff;
|
606 | 90dc8812 | Scott Wood | env->spr[SPR_TBU] = sregs.u.e.tb >> 32;
|
607 | 90dc8812 | Scott Wood | env->spr[SPR_VRSAVE] = sregs.u.e.vrsave; |
608 | 90dc8812 | Scott Wood | } |
609 | 90dc8812 | Scott Wood | |
610 | 90dc8812 | Scott Wood | if (sregs.u.e.features & KVM_SREGS_E_ARCH206) {
|
611 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_PIR] = sregs.u.e.pir; |
612 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_MCSRR0] = sregs.u.e.mcsrr0; |
613 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_MCSRR1] = sregs.u.e.mcsrr1; |
614 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_DECAR] = sregs.u.e.decar; |
615 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_IVPR] = sregs.u.e.ivpr; |
616 | 90dc8812 | Scott Wood | } |
617 | 90dc8812 | Scott Wood | |
618 | 90dc8812 | Scott Wood | if (sregs.u.e.features & KVM_SREGS_E_64) {
|
619 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_EPCR] = sregs.u.e.epcr; |
620 | 90dc8812 | Scott Wood | } |
621 | 90dc8812 | Scott Wood | |
622 | 90dc8812 | Scott Wood | if (sregs.u.e.features & KVM_SREGS_E_SPRG8) {
|
623 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_SPRG8] = sregs.u.e.sprg8; |
624 | 90dc8812 | Scott Wood | } |
625 | 90dc8812 | Scott Wood | |
626 | 90dc8812 | Scott Wood | if (sregs.u.e.features & KVM_SREGS_E_IVOR) {
|
627 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_IVOR0] = sregs.u.e.ivor_low[0];
|
628 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_IVOR1] = sregs.u.e.ivor_low[1];
|
629 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_IVOR2] = sregs.u.e.ivor_low[2];
|
630 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_IVOR3] = sregs.u.e.ivor_low[3];
|
631 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_IVOR4] = sregs.u.e.ivor_low[4];
|
632 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_IVOR5] = sregs.u.e.ivor_low[5];
|
633 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_IVOR6] = sregs.u.e.ivor_low[6];
|
634 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_IVOR7] = sregs.u.e.ivor_low[7];
|
635 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_IVOR8] = sregs.u.e.ivor_low[8];
|
636 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_IVOR9] = sregs.u.e.ivor_low[9];
|
637 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_IVOR10] = sregs.u.e.ivor_low[10];
|
638 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_IVOR11] = sregs.u.e.ivor_low[11];
|
639 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_IVOR12] = sregs.u.e.ivor_low[12];
|
640 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_IVOR13] = sregs.u.e.ivor_low[13];
|
641 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_IVOR14] = sregs.u.e.ivor_low[14];
|
642 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_IVOR15] = sregs.u.e.ivor_low[15];
|
643 | 90dc8812 | Scott Wood | |
644 | 90dc8812 | Scott Wood | if (sregs.u.e.features & KVM_SREGS_E_SPE) {
|
645 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_IVOR32] = sregs.u.e.ivor_high[0];
|
646 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_IVOR33] = sregs.u.e.ivor_high[1];
|
647 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_IVOR34] = sregs.u.e.ivor_high[2];
|
648 | 90dc8812 | Scott Wood | } |
649 | 90dc8812 | Scott Wood | |
650 | 90dc8812 | Scott Wood | if (sregs.u.e.features & KVM_SREGS_E_PM) {
|
651 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_IVOR35] = sregs.u.e.ivor_high[3];
|
652 | 90dc8812 | Scott Wood | } |
653 | 90dc8812 | Scott Wood | |
654 | 90dc8812 | Scott Wood | if (sregs.u.e.features & KVM_SREGS_E_PC) {
|
655 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_IVOR36] = sregs.u.e.ivor_high[4];
|
656 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_IVOR37] = sregs.u.e.ivor_high[5];
|
657 | 90dc8812 | Scott Wood | } |
658 | 90dc8812 | Scott Wood | } |
659 | 90dc8812 | Scott Wood | |
660 | 90dc8812 | Scott Wood | if (sregs.u.e.features & KVM_SREGS_E_ARCH206_MMU) {
|
661 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_MAS0] = sregs.u.e.mas0; |
662 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_MAS1] = sregs.u.e.mas1; |
663 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_MAS2] = sregs.u.e.mas2; |
664 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_MAS3] = sregs.u.e.mas7_3 & 0xffffffff;
|
665 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_MAS4] = sregs.u.e.mas4; |
666 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_MAS6] = sregs.u.e.mas6; |
667 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_MAS7] = sregs.u.e.mas7_3 >> 32;
|
668 | 90dc8812 | Scott Wood | env->spr[SPR_MMUCFG] = sregs.u.e.mmucfg; |
669 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_TLB0CFG] = sregs.u.e.tlbcfg[0];
|
670 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_TLB1CFG] = sregs.u.e.tlbcfg[1];
|
671 | 90dc8812 | Scott Wood | } |
672 | 90dc8812 | Scott Wood | |
673 | 90dc8812 | Scott Wood | if (sregs.u.e.features & KVM_SREGS_EXP) {
|
674 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_EPR] = sregs.u.e.epr; |
675 | 90dc8812 | Scott Wood | } |
676 | 90dc8812 | Scott Wood | |
677 | 90dc8812 | Scott Wood | if (sregs.u.e.features & KVM_SREGS_E_PD) {
|
678 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_EPLC] = sregs.u.e.eplc; |
679 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_EPSC] = sregs.u.e.epsc; |
680 | 90dc8812 | Scott Wood | } |
681 | 90dc8812 | Scott Wood | |
682 | 90dc8812 | Scott Wood | if (sregs.u.e.impl_id == KVM_SREGS_E_IMPL_FSL) {
|
683 | 90dc8812 | Scott Wood | env->spr[SPR_E500_SVR] = sregs.u.e.impl.fsl.svr; |
684 | 90dc8812 | Scott Wood | env->spr[SPR_Exxx_MCAR] = sregs.u.e.impl.fsl.mcar; |
685 | 90dc8812 | Scott Wood | env->spr[SPR_HID0] = sregs.u.e.impl.fsl.hid0; |
686 | 90dc8812 | Scott Wood | |
687 | 90dc8812 | Scott Wood | if (sregs.u.e.impl.fsl.features & KVM_SREGS_E_FSL_PIDn) {
|
688 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_PID1] = sregs.u.e.impl.fsl.pid1; |
689 | 90dc8812 | Scott Wood | env->spr[SPR_BOOKE_PID2] = sregs.u.e.impl.fsl.pid2; |
690 | 90dc8812 | Scott Wood | } |
691 | 90dc8812 | Scott Wood | } |
692 | fafc0b6a | Alexander Graf | } |
693 | 90dc8812 | Scott Wood | |
694 | 90dc8812 | Scott Wood | if (cap_segstate) {
|
695 | 1bc22652 | Andreas Färber | ret = kvm_vcpu_ioctl(cs, KVM_GET_SREGS, &sregs); |
696 | 90dc8812 | Scott Wood | if (ret < 0) { |
697 | 90dc8812 | Scott Wood | return ret;
|
698 | 90dc8812 | Scott Wood | } |
699 | 90dc8812 | Scott Wood | |
700 | bb593904 | David Gibson | ppc_store_sdr1(env, sregs.u.s.sdr1); |
701 | ba5e5090 | Alexander Graf | |
702 | ba5e5090 | Alexander Graf | /* Sync SLB */
|
703 | 82c09f2f | Alexander Graf | #ifdef TARGET_PPC64
|
704 | ba5e5090 | Alexander Graf | for (i = 0; i < 64; i++) { |
705 | ba5e5090 | Alexander Graf | ppc_store_slb(env, sregs.u.s.ppc64.slb[i].slbe, |
706 | ba5e5090 | Alexander Graf | sregs.u.s.ppc64.slb[i].slbv); |
707 | ba5e5090 | Alexander Graf | } |
708 | 82c09f2f | Alexander Graf | #endif
|
709 | ba5e5090 | Alexander Graf | |
710 | ba5e5090 | Alexander Graf | /* Sync SRs */
|
711 | ba5e5090 | Alexander Graf | for (i = 0; i < 16; i++) { |
712 | ba5e5090 | Alexander Graf | env->sr[i] = sregs.u.s.ppc32.sr[i]; |
713 | ba5e5090 | Alexander Graf | } |
714 | ba5e5090 | Alexander Graf | |
715 | ba5e5090 | Alexander Graf | /* Sync BATs */
|
716 | ba5e5090 | Alexander Graf | for (i = 0; i < 8; i++) { |
717 | ba5e5090 | Alexander Graf | env->DBAT[0][i] = sregs.u.s.ppc32.dbat[i] & 0xffffffff; |
718 | ba5e5090 | Alexander Graf | env->DBAT[1][i] = sregs.u.s.ppc32.dbat[i] >> 32; |
719 | ba5e5090 | Alexander Graf | env->IBAT[0][i] = sregs.u.s.ppc32.ibat[i] & 0xffffffff; |
720 | ba5e5090 | Alexander Graf | env->IBAT[1][i] = sregs.u.s.ppc32.ibat[i] >> 32; |
721 | ba5e5090 | Alexander Graf | } |
722 | fafc0b6a | Alexander Graf | } |
723 | ba5e5090 | Alexander Graf | |
724 | d76d1650 | aurel32 | return 0; |
725 | d76d1650 | aurel32 | } |
726 | d76d1650 | aurel32 | |
727 | 1bc22652 | Andreas Färber | int kvmppc_set_interrupt(PowerPCCPU *cpu, int irq, int level) |
728 | fc87e185 | Alexander Graf | { |
729 | fc87e185 | Alexander Graf | unsigned virq = level ? KVM_INTERRUPT_SET_LEVEL : KVM_INTERRUPT_UNSET;
|
730 | fc87e185 | Alexander Graf | |
731 | fc87e185 | Alexander Graf | if (irq != PPC_INTERRUPT_EXT) {
|
732 | fc87e185 | Alexander Graf | return 0; |
733 | fc87e185 | Alexander Graf | } |
734 | fc87e185 | Alexander Graf | |
735 | fc87e185 | Alexander Graf | if (!kvm_enabled() || !cap_interrupt_unset || !cap_interrupt_level) {
|
736 | fc87e185 | Alexander Graf | return 0; |
737 | fc87e185 | Alexander Graf | } |
738 | fc87e185 | Alexander Graf | |
739 | 1bc22652 | Andreas Färber | kvm_vcpu_ioctl(CPU(cpu), KVM_INTERRUPT, &virq); |
740 | fc87e185 | Alexander Graf | |
741 | fc87e185 | Alexander Graf | return 0; |
742 | fc87e185 | Alexander Graf | } |
743 | fc87e185 | Alexander Graf | |
744 | 16415335 | Alexander Graf | #if defined(TARGET_PPCEMB)
|
745 | 16415335 | Alexander Graf | #define PPC_INPUT_INT PPC40x_INPUT_INT
|
746 | 16415335 | Alexander Graf | #elif defined(TARGET_PPC64)
|
747 | 16415335 | Alexander Graf | #define PPC_INPUT_INT PPC970_INPUT_INT
|
748 | 16415335 | Alexander Graf | #else
|
749 | 16415335 | Alexander Graf | #define PPC_INPUT_INT PPC6xx_INPUT_INT
|
750 | 16415335 | Alexander Graf | #endif
|
751 | 16415335 | Alexander Graf | |
752 | 20d695a9 | Andreas Färber | void kvm_arch_pre_run(CPUState *cs, struct kvm_run *run) |
753 | d76d1650 | aurel32 | { |
754 | 20d695a9 | Andreas Färber | PowerPCCPU *cpu = POWERPC_CPU(cs); |
755 | 20d695a9 | Andreas Färber | CPUPPCState *env = &cpu->env; |
756 | d76d1650 | aurel32 | int r;
|
757 | d76d1650 | aurel32 | unsigned irq;
|
758 | d76d1650 | aurel32 | |
759 | 5cbdb3a3 | Stefan Weil | /* PowerPC QEMU tracks the various core input pins (interrupt, critical
|
760 | d76d1650 | aurel32 | * interrupt, reset, etc) in PPC-specific env->irq_input_state. */
|
761 | fc87e185 | Alexander Graf | if (!cap_interrupt_level &&
|
762 | fc87e185 | Alexander Graf | run->ready_for_interrupt_injection && |
763 | d76d1650 | aurel32 | (env->interrupt_request & CPU_INTERRUPT_HARD) && |
764 | 16415335 | Alexander Graf | (env->irq_input_state & (1<<PPC_INPUT_INT)))
|
765 | d76d1650 | aurel32 | { |
766 | d76d1650 | aurel32 | /* For now KVM disregards the 'irq' argument. However, in the
|
767 | d76d1650 | aurel32 | * future KVM could cache it in-kernel to avoid a heavyweight exit
|
768 | d76d1650 | aurel32 | * when reading the UIC.
|
769 | d76d1650 | aurel32 | */
|
770 | fc87e185 | Alexander Graf | irq = KVM_INTERRUPT_SET; |
771 | d76d1650 | aurel32 | |
772 | d76d1650 | aurel32 | dprintf("injected interrupt %d\n", irq);
|
773 | 1bc22652 | Andreas Färber | r = kvm_vcpu_ioctl(cs, KVM_INTERRUPT, &irq); |
774 | 55e5c285 | Andreas Färber | if (r < 0) { |
775 | 55e5c285 | Andreas Färber | printf("cpu %d fail inject %x\n", cs->cpu_index, irq);
|
776 | 55e5c285 | Andreas Färber | } |
777 | c821c2bd | Alexander Graf | |
778 | c821c2bd | Alexander Graf | /* Always wake up soon in case the interrupt was level based */
|
779 | 74475455 | Paolo Bonzini | qemu_mod_timer(idle_timer, qemu_get_clock_ns(vm_clock) + |
780 | c821c2bd | Alexander Graf | (get_ticks_per_sec() / 50));
|
781 | d76d1650 | aurel32 | } |
782 | d76d1650 | aurel32 | |
783 | d76d1650 | aurel32 | /* We don't know if there are more interrupts pending after this. However,
|
784 | d76d1650 | aurel32 | * the guest will return to userspace in the course of handling this one
|
785 | d76d1650 | aurel32 | * anyways, so we will get a chance to deliver the rest. */
|
786 | d76d1650 | aurel32 | } |
787 | d76d1650 | aurel32 | |
788 | 20d695a9 | Andreas Färber | void kvm_arch_post_run(CPUState *cpu, struct kvm_run *run) |
789 | d76d1650 | aurel32 | { |
790 | d76d1650 | aurel32 | } |
791 | d76d1650 | aurel32 | |
792 | 20d695a9 | Andreas Färber | int kvm_arch_process_async_events(CPUState *cs)
|
793 | 0af691d7 | Marcelo Tosatti | { |
794 | 20d695a9 | Andreas Färber | PowerPCCPU *cpu = POWERPC_CPU(cs); |
795 | 20d695a9 | Andreas Färber | return cpu->env.halted;
|
796 | 0af691d7 | Marcelo Tosatti | } |
797 | 0af691d7 | Marcelo Tosatti | |
798 | 1328c2bf | Andreas Färber | static int kvmppc_handle_halt(CPUPPCState *env) |
799 | d76d1650 | aurel32 | { |
800 | d76d1650 | aurel32 | if (!(env->interrupt_request & CPU_INTERRUPT_HARD) && (msr_ee)) {
|
801 | d76d1650 | aurel32 | env->halted = 1;
|
802 | d76d1650 | aurel32 | env->exception_index = EXCP_HLT; |
803 | d76d1650 | aurel32 | } |
804 | d76d1650 | aurel32 | |
805 | bb4ea393 | Jan Kiszka | return 0; |
806 | d76d1650 | aurel32 | } |
807 | d76d1650 | aurel32 | |
808 | d76d1650 | aurel32 | /* map dcr access to existing qemu dcr emulation */
|
809 | 1328c2bf | Andreas Färber | static int kvmppc_handle_dcr_read(CPUPPCState *env, uint32_t dcrn, uint32_t *data) |
810 | d76d1650 | aurel32 | { |
811 | d76d1650 | aurel32 | if (ppc_dcr_read(env->dcr_env, dcrn, data) < 0) |
812 | d76d1650 | aurel32 | fprintf(stderr, "Read to unhandled DCR (0x%x)\n", dcrn);
|
813 | d76d1650 | aurel32 | |
814 | bb4ea393 | Jan Kiszka | return 0; |
815 | d76d1650 | aurel32 | } |
816 | d76d1650 | aurel32 | |
817 | 1328c2bf | Andreas Färber | static int kvmppc_handle_dcr_write(CPUPPCState *env, uint32_t dcrn, uint32_t data) |
818 | d76d1650 | aurel32 | { |
819 | d76d1650 | aurel32 | if (ppc_dcr_write(env->dcr_env, dcrn, data) < 0) |
820 | d76d1650 | aurel32 | fprintf(stderr, "Write to unhandled DCR (0x%x)\n", dcrn);
|
821 | d76d1650 | aurel32 | |
822 | bb4ea393 | Jan Kiszka | return 0; |
823 | d76d1650 | aurel32 | } |
824 | d76d1650 | aurel32 | |
825 | 20d695a9 | Andreas Färber | int kvm_arch_handle_exit(CPUState *cs, struct kvm_run *run) |
826 | d76d1650 | aurel32 | { |
827 | 20d695a9 | Andreas Färber | PowerPCCPU *cpu = POWERPC_CPU(cs); |
828 | 20d695a9 | Andreas Färber | CPUPPCState *env = &cpu->env; |
829 | bb4ea393 | Jan Kiszka | int ret;
|
830 | d76d1650 | aurel32 | |
831 | d76d1650 | aurel32 | switch (run->exit_reason) {
|
832 | d76d1650 | aurel32 | case KVM_EXIT_DCR:
|
833 | d76d1650 | aurel32 | if (run->dcr.is_write) {
|
834 | d76d1650 | aurel32 | dprintf("handle dcr write\n");
|
835 | d76d1650 | aurel32 | ret = kvmppc_handle_dcr_write(env, run->dcr.dcrn, run->dcr.data); |
836 | d76d1650 | aurel32 | } else {
|
837 | d76d1650 | aurel32 | dprintf("handle dcr read\n");
|
838 | d76d1650 | aurel32 | ret = kvmppc_handle_dcr_read(env, run->dcr.dcrn, &run->dcr.data); |
839 | d76d1650 | aurel32 | } |
840 | d76d1650 | aurel32 | break;
|
841 | d76d1650 | aurel32 | case KVM_EXIT_HLT:
|
842 | d76d1650 | aurel32 | dprintf("handle halt\n");
|
843 | d76d1650 | aurel32 | ret = kvmppc_handle_halt(env); |
844 | d76d1650 | aurel32 | break;
|
845 | f61b4bed | Alexander Graf | #ifdef CONFIG_PSERIES
|
846 | f61b4bed | Alexander Graf | case KVM_EXIT_PAPR_HCALL:
|
847 | f61b4bed | Alexander Graf | dprintf("handle PAPR hypercall\n");
|
848 | 20d695a9 | Andreas Färber | run->papr_hcall.ret = spapr_hypercall(cpu, |
849 | aa100fa4 | Andreas Färber | run->papr_hcall.nr, |
850 | f61b4bed | Alexander Graf | run->papr_hcall.args); |
851 | 78e8fde2 | David Gibson | ret = 0;
|
852 | f61b4bed | Alexander Graf | break;
|
853 | f61b4bed | Alexander Graf | #endif
|
854 | 5b95b8b9 | Alexander Graf | case KVM_EXIT_EPR:
|
855 | 5b95b8b9 | Alexander Graf | dprintf("handle epr\n");
|
856 | 5b95b8b9 | Alexander Graf | run->epr.epr = ldl_phys(env->mpic_iack); |
857 | 5b95b8b9 | Alexander Graf | ret = 0;
|
858 | 5b95b8b9 | Alexander Graf | break;
|
859 | 73aaec4a | Jan Kiszka | default:
|
860 | 73aaec4a | Jan Kiszka | fprintf(stderr, "KVM: unknown exit reason %d\n", run->exit_reason);
|
861 | 73aaec4a | Jan Kiszka | ret = -1;
|
862 | 73aaec4a | Jan Kiszka | break;
|
863 | d76d1650 | aurel32 | } |
864 | d76d1650 | aurel32 | |
865 | d76d1650 | aurel32 | return ret;
|
866 | d76d1650 | aurel32 | } |
867 | d76d1650 | aurel32 | |
868 | dc333cd6 | Alexander Graf | static int read_cpuinfo(const char *field, char *value, int len) |
869 | dc333cd6 | Alexander Graf | { |
870 | dc333cd6 | Alexander Graf | FILE *f; |
871 | dc333cd6 | Alexander Graf | int ret = -1; |
872 | dc333cd6 | Alexander Graf | int field_len = strlen(field);
|
873 | dc333cd6 | Alexander Graf | char line[512]; |
874 | dc333cd6 | Alexander Graf | |
875 | dc333cd6 | Alexander Graf | f = fopen("/proc/cpuinfo", "r"); |
876 | dc333cd6 | Alexander Graf | if (!f) {
|
877 | dc333cd6 | Alexander Graf | return -1; |
878 | dc333cd6 | Alexander Graf | } |
879 | dc333cd6 | Alexander Graf | |
880 | dc333cd6 | Alexander Graf | do {
|
881 | dc333cd6 | Alexander Graf | if(!fgets(line, sizeof(line), f)) { |
882 | dc333cd6 | Alexander Graf | break;
|
883 | dc333cd6 | Alexander Graf | } |
884 | dc333cd6 | Alexander Graf | if (!strncmp(line, field, field_len)) {
|
885 | ae215068 | Jim Meyering | pstrcpy(value, len, line); |
886 | dc333cd6 | Alexander Graf | ret = 0;
|
887 | dc333cd6 | Alexander Graf | break;
|
888 | dc333cd6 | Alexander Graf | } |
889 | dc333cd6 | Alexander Graf | } while(*line);
|
890 | dc333cd6 | Alexander Graf | |
891 | dc333cd6 | Alexander Graf | fclose(f); |
892 | dc333cd6 | Alexander Graf | |
893 | dc333cd6 | Alexander Graf | return ret;
|
894 | dc333cd6 | Alexander Graf | } |
895 | dc333cd6 | Alexander Graf | |
896 | dc333cd6 | Alexander Graf | uint32_t kvmppc_get_tbfreq(void)
|
897 | dc333cd6 | Alexander Graf | { |
898 | dc333cd6 | Alexander Graf | char line[512]; |
899 | dc333cd6 | Alexander Graf | char *ns;
|
900 | dc333cd6 | Alexander Graf | uint32_t retval = get_ticks_per_sec(); |
901 | dc333cd6 | Alexander Graf | |
902 | dc333cd6 | Alexander Graf | if (read_cpuinfo("timebase", line, sizeof(line))) { |
903 | dc333cd6 | Alexander Graf | return retval;
|
904 | dc333cd6 | Alexander Graf | } |
905 | dc333cd6 | Alexander Graf | |
906 | dc333cd6 | Alexander Graf | if (!(ns = strchr(line, ':'))) { |
907 | dc333cd6 | Alexander Graf | return retval;
|
908 | dc333cd6 | Alexander Graf | } |
909 | dc333cd6 | Alexander Graf | |
910 | dc333cd6 | Alexander Graf | ns++; |
911 | dc333cd6 | Alexander Graf | |
912 | dc333cd6 | Alexander Graf | retval = atoi(ns); |
913 | dc333cd6 | Alexander Graf | return retval;
|
914 | dc333cd6 | Alexander Graf | } |
915 | 4513d923 | Gleb Natapov | |
916 | eadaada1 | Alexander Graf | /* Try to find a device tree node for a CPU with clock-frequency property */
|
917 | eadaada1 | Alexander Graf | static int kvmppc_find_cpu_dt(char *buf, int buf_len) |
918 | eadaada1 | Alexander Graf | { |
919 | eadaada1 | Alexander Graf | struct dirent *dirp;
|
920 | eadaada1 | Alexander Graf | DIR *dp; |
921 | eadaada1 | Alexander Graf | |
922 | eadaada1 | Alexander Graf | if ((dp = opendir(PROC_DEVTREE_CPU)) == NULL) { |
923 | eadaada1 | Alexander Graf | printf("Can't open directory " PROC_DEVTREE_CPU "\n"); |
924 | eadaada1 | Alexander Graf | return -1; |
925 | eadaada1 | Alexander Graf | } |
926 | eadaada1 | Alexander Graf | |
927 | eadaada1 | Alexander Graf | buf[0] = '\0'; |
928 | eadaada1 | Alexander Graf | while ((dirp = readdir(dp)) != NULL) { |
929 | eadaada1 | Alexander Graf | FILE *f; |
930 | eadaada1 | Alexander Graf | snprintf(buf, buf_len, "%s%s/clock-frequency", PROC_DEVTREE_CPU,
|
931 | eadaada1 | Alexander Graf | dirp->d_name); |
932 | eadaada1 | Alexander Graf | f = fopen(buf, "r");
|
933 | eadaada1 | Alexander Graf | if (f) {
|
934 | eadaada1 | Alexander Graf | snprintf(buf, buf_len, "%s%s", PROC_DEVTREE_CPU, dirp->d_name);
|
935 | eadaada1 | Alexander Graf | fclose(f); |
936 | eadaada1 | Alexander Graf | break;
|
937 | eadaada1 | Alexander Graf | } |
938 | eadaada1 | Alexander Graf | buf[0] = '\0'; |
939 | eadaada1 | Alexander Graf | } |
940 | eadaada1 | Alexander Graf | closedir(dp); |
941 | eadaada1 | Alexander Graf | if (buf[0] == '\0') { |
942 | eadaada1 | Alexander Graf | printf("Unknown host!\n");
|
943 | eadaada1 | Alexander Graf | return -1; |
944 | eadaada1 | Alexander Graf | } |
945 | eadaada1 | Alexander Graf | |
946 | eadaada1 | Alexander Graf | return 0; |
947 | eadaada1 | Alexander Graf | } |
948 | eadaada1 | Alexander Graf | |
949 | 9bc884b7 | David Gibson | /* Read a CPU node property from the host device tree that's a single
|
950 | 9bc884b7 | David Gibson | * integer (32-bit or 64-bit). Returns 0 if anything goes wrong
|
951 | 9bc884b7 | David Gibson | * (can't find or open the property, or doesn't understand the
|
952 | 9bc884b7 | David Gibson | * format) */
|
953 | 9bc884b7 | David Gibson | static uint64_t kvmppc_read_int_cpu_dt(const char *propname) |
954 | eadaada1 | Alexander Graf | { |
955 | 9bc884b7 | David Gibson | char buf[PATH_MAX];
|
956 | 9bc884b7 | David Gibson | union {
|
957 | 9bc884b7 | David Gibson | uint32_t v32; |
958 | 9bc884b7 | David Gibson | uint64_t v64; |
959 | 9bc884b7 | David Gibson | } u; |
960 | eadaada1 | Alexander Graf | FILE *f; |
961 | eadaada1 | Alexander Graf | int len;
|
962 | eadaada1 | Alexander Graf | |
963 | eadaada1 | Alexander Graf | if (kvmppc_find_cpu_dt(buf, sizeof(buf))) { |
964 | 9bc884b7 | David Gibson | return -1; |
965 | eadaada1 | Alexander Graf | } |
966 | eadaada1 | Alexander Graf | |
967 | 9bc884b7 | David Gibson | strncat(buf, "/", sizeof(buf) - strlen(buf)); |
968 | 9bc884b7 | David Gibson | strncat(buf, propname, sizeof(buf) - strlen(buf));
|
969 | eadaada1 | Alexander Graf | |
970 | eadaada1 | Alexander Graf | f = fopen(buf, "rb");
|
971 | eadaada1 | Alexander Graf | if (!f) {
|
972 | eadaada1 | Alexander Graf | return -1; |
973 | eadaada1 | Alexander Graf | } |
974 | eadaada1 | Alexander Graf | |
975 | 9bc884b7 | David Gibson | len = fread(&u, 1, sizeof(u), f); |
976 | eadaada1 | Alexander Graf | fclose(f); |
977 | eadaada1 | Alexander Graf | switch (len) {
|
978 | 9bc884b7 | David Gibson | case 4: |
979 | 9bc884b7 | David Gibson | /* property is a 32-bit quantity */
|
980 | 9bc884b7 | David Gibson | return be32_to_cpu(u.v32);
|
981 | 9bc884b7 | David Gibson | case 8: |
982 | 9bc884b7 | David Gibson | return be64_to_cpu(u.v64);
|
983 | eadaada1 | Alexander Graf | } |
984 | eadaada1 | Alexander Graf | |
985 | eadaada1 | Alexander Graf | return 0; |
986 | eadaada1 | Alexander Graf | } |
987 | eadaada1 | Alexander Graf | |
988 | 9bc884b7 | David Gibson | uint64_t kvmppc_get_clockfreq(void)
|
989 | 9bc884b7 | David Gibson | { |
990 | 9bc884b7 | David Gibson | return kvmppc_read_int_cpu_dt("clock-frequency"); |
991 | 9bc884b7 | David Gibson | } |
992 | 9bc884b7 | David Gibson | |
993 | 6659394f | David Gibson | uint32_t kvmppc_get_vmx(void)
|
994 | 6659394f | David Gibson | { |
995 | 6659394f | David Gibson | return kvmppc_read_int_cpu_dt("ibm,vmx"); |
996 | 6659394f | David Gibson | } |
997 | 6659394f | David Gibson | |
998 | 6659394f | David Gibson | uint32_t kvmppc_get_dfp(void)
|
999 | 6659394f | David Gibson | { |
1000 | 6659394f | David Gibson | return kvmppc_read_int_cpu_dt("ibm,dfp"); |
1001 | 6659394f | David Gibson | } |
1002 | 6659394f | David Gibson | |
1003 | 1a61a9ae | Stuart Yoder | static int kvmppc_get_pvinfo(CPUPPCState *env, struct kvm_ppc_pvinfo *pvinfo) |
1004 | 1a61a9ae | Stuart Yoder | { |
1005 | 1a61a9ae | Stuart Yoder | PowerPCCPU *cpu = ppc_env_get_cpu(env); |
1006 | 1a61a9ae | Stuart Yoder | CPUState *cs = CPU(cpu); |
1007 | 1a61a9ae | Stuart Yoder | |
1008 | 1a61a9ae | Stuart Yoder | if (kvm_check_extension(cs->kvm_state, KVM_CAP_PPC_GET_PVINFO) &&
|
1009 | 1a61a9ae | Stuart Yoder | !kvm_vm_ioctl(cs->kvm_state, KVM_PPC_GET_PVINFO, pvinfo)) { |
1010 | 1a61a9ae | Stuart Yoder | return 0; |
1011 | 1a61a9ae | Stuart Yoder | } |
1012 | 1a61a9ae | Stuart Yoder | |
1013 | 1a61a9ae | Stuart Yoder | return 1; |
1014 | 1a61a9ae | Stuart Yoder | } |
1015 | 1a61a9ae | Stuart Yoder | |
1016 | 1a61a9ae | Stuart Yoder | int kvmppc_get_hasidle(CPUPPCState *env)
|
1017 | 1a61a9ae | Stuart Yoder | { |
1018 | 1a61a9ae | Stuart Yoder | struct kvm_ppc_pvinfo pvinfo;
|
1019 | 1a61a9ae | Stuart Yoder | |
1020 | 1a61a9ae | Stuart Yoder | if (!kvmppc_get_pvinfo(env, &pvinfo) &&
|
1021 | 1a61a9ae | Stuart Yoder | (pvinfo.flags & KVM_PPC_PVINFO_FLAGS_EV_IDLE)) { |
1022 | 1a61a9ae | Stuart Yoder | return 1; |
1023 | 1a61a9ae | Stuart Yoder | } |
1024 | 1a61a9ae | Stuart Yoder | |
1025 | 1a61a9ae | Stuart Yoder | return 0; |
1026 | 1a61a9ae | Stuart Yoder | } |
1027 | 1a61a9ae | Stuart Yoder | |
1028 | 1328c2bf | Andreas Färber | int kvmppc_get_hypercall(CPUPPCState *env, uint8_t *buf, int buf_len) |
1029 | 45024f09 | Alexander Graf | { |
1030 | 45024f09 | Alexander Graf | uint32_t *hc = (uint32_t*)buf; |
1031 | 45024f09 | Alexander Graf | struct kvm_ppc_pvinfo pvinfo;
|
1032 | 45024f09 | Alexander Graf | |
1033 | 1a61a9ae | Stuart Yoder | if (!kvmppc_get_pvinfo(env, &pvinfo)) {
|
1034 | 45024f09 | Alexander Graf | memcpy(buf, pvinfo.hcall, buf_len); |
1035 | 45024f09 | Alexander Graf | return 0; |
1036 | 45024f09 | Alexander Graf | } |
1037 | 45024f09 | Alexander Graf | |
1038 | 45024f09 | Alexander Graf | /*
|
1039 | 45024f09 | Alexander Graf | * Fallback to always fail hypercalls:
|
1040 | 45024f09 | Alexander Graf | *
|
1041 | 45024f09 | Alexander Graf | * li r3, -1
|
1042 | 45024f09 | Alexander Graf | * nop
|
1043 | 45024f09 | Alexander Graf | * nop
|
1044 | 45024f09 | Alexander Graf | * nop
|
1045 | 45024f09 | Alexander Graf | */
|
1046 | 45024f09 | Alexander Graf | |
1047 | 45024f09 | Alexander Graf | hc[0] = 0x3860ffff; |
1048 | 45024f09 | Alexander Graf | hc[1] = 0x60000000; |
1049 | 45024f09 | Alexander Graf | hc[2] = 0x60000000; |
1050 | 45024f09 | Alexander Graf | hc[3] = 0x60000000; |
1051 | 45024f09 | Alexander Graf | |
1052 | 45024f09 | Alexander Graf | return 0; |
1053 | 45024f09 | Alexander Graf | } |
1054 | 45024f09 | Alexander Graf | |
1055 | 1bc22652 | Andreas Färber | void kvmppc_set_papr(PowerPCCPU *cpu)
|
1056 | f61b4bed | Alexander Graf | { |
1057 | 1bc22652 | Andreas Färber | CPUPPCState *env = &cpu->env; |
1058 | 1bc22652 | Andreas Färber | CPUState *cs = CPU(cpu); |
1059 | 94135e81 | Alexander Graf | struct kvm_enable_cap cap = {};
|
1060 | f61b4bed | Alexander Graf | int ret;
|
1061 | f61b4bed | Alexander Graf | |
1062 | f61b4bed | Alexander Graf | cap.cap = KVM_CAP_PPC_PAPR; |
1063 | 1bc22652 | Andreas Färber | ret = kvm_vcpu_ioctl(cs, KVM_ENABLE_CAP, &cap); |
1064 | f61b4bed | Alexander Graf | |
1065 | f61b4bed | Alexander Graf | if (ret) {
|
1066 | f1af19d7 | David Gibson | cpu_abort(env, "This KVM version does not support PAPR\n");
|
1067 | 94135e81 | Alexander Graf | } |
1068 | f61b4bed | Alexander Graf | } |
1069 | f61b4bed | Alexander Graf | |
1070 | 5b95b8b9 | Alexander Graf | void kvmppc_set_mpic_proxy(PowerPCCPU *cpu, int mpic_proxy) |
1071 | 5b95b8b9 | Alexander Graf | { |
1072 | 5b95b8b9 | Alexander Graf | CPUPPCState *env = &cpu->env; |
1073 | 5b95b8b9 | Alexander Graf | CPUState *cs = CPU(cpu); |
1074 | 5b95b8b9 | Alexander Graf | struct kvm_enable_cap cap = {};
|
1075 | 5b95b8b9 | Alexander Graf | int ret;
|
1076 | 5b95b8b9 | Alexander Graf | |
1077 | 5b95b8b9 | Alexander Graf | cap.cap = KVM_CAP_PPC_EPR; |
1078 | 5b95b8b9 | Alexander Graf | cap.args[0] = mpic_proxy;
|
1079 | 5b95b8b9 | Alexander Graf | ret = kvm_vcpu_ioctl(cs, KVM_ENABLE_CAP, &cap); |
1080 | 5b95b8b9 | Alexander Graf | |
1081 | 5b95b8b9 | Alexander Graf | if (ret && mpic_proxy) {
|
1082 | 5b95b8b9 | Alexander Graf | cpu_abort(env, "This KVM version does not support EPR\n");
|
1083 | 5b95b8b9 | Alexander Graf | } |
1084 | 5b95b8b9 | Alexander Graf | } |
1085 | 5b95b8b9 | Alexander Graf | |
1086 | e97c3636 | David Gibson | int kvmppc_smt_threads(void) |
1087 | e97c3636 | David Gibson | { |
1088 | e97c3636 | David Gibson | return cap_ppc_smt ? cap_ppc_smt : 1; |
1089 | e97c3636 | David Gibson | } |
1090 | e97c3636 | David Gibson | |
1091 | 7f763a5d | David Gibson | #ifdef TARGET_PPC64
|
1092 | 354ac20a | David Gibson | off_t kvmppc_alloc_rma(const char *name, MemoryRegion *sysmem) |
1093 | 354ac20a | David Gibson | { |
1094 | 354ac20a | David Gibson | void *rma;
|
1095 | 354ac20a | David Gibson | off_t size; |
1096 | 354ac20a | David Gibson | int fd;
|
1097 | 354ac20a | David Gibson | struct kvm_allocate_rma ret;
|
1098 | 354ac20a | David Gibson | MemoryRegion *rma_region; |
1099 | 354ac20a | David Gibson | |
1100 | 354ac20a | David Gibson | /* If cap_ppc_rma == 0, contiguous RMA allocation is not supported
|
1101 | 354ac20a | David Gibson | * if cap_ppc_rma == 1, contiguous RMA allocation is supported, but
|
1102 | 354ac20a | David Gibson | * not necessary on this hardware
|
1103 | 354ac20a | David Gibson | * if cap_ppc_rma == 2, contiguous RMA allocation is needed on this hardware
|
1104 | 354ac20a | David Gibson | *
|
1105 | 354ac20a | David Gibson | * FIXME: We should allow the user to force contiguous RMA
|
1106 | 354ac20a | David Gibson | * allocation in the cap_ppc_rma==1 case.
|
1107 | 354ac20a | David Gibson | */
|
1108 | 354ac20a | David Gibson | if (cap_ppc_rma < 2) { |
1109 | 354ac20a | David Gibson | return 0; |
1110 | 354ac20a | David Gibson | } |
1111 | 354ac20a | David Gibson | |
1112 | 354ac20a | David Gibson | fd = kvm_vm_ioctl(kvm_state, KVM_ALLOCATE_RMA, &ret); |
1113 | 354ac20a | David Gibson | if (fd < 0) { |
1114 | 354ac20a | David Gibson | fprintf(stderr, "KVM: Error on KVM_ALLOCATE_RMA: %s\n",
|
1115 | 354ac20a | David Gibson | strerror(errno)); |
1116 | 354ac20a | David Gibson | return -1; |
1117 | 354ac20a | David Gibson | } |
1118 | 354ac20a | David Gibson | |
1119 | 354ac20a | David Gibson | size = MIN(ret.rma_size, 256ul << 20); |
1120 | 354ac20a | David Gibson | |
1121 | 354ac20a | David Gibson | rma = mmap(NULL, size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0); |
1122 | 354ac20a | David Gibson | if (rma == MAP_FAILED) {
|
1123 | 354ac20a | David Gibson | fprintf(stderr, "KVM: Error mapping RMA: %s\n", strerror(errno));
|
1124 | 354ac20a | David Gibson | return -1; |
1125 | 354ac20a | David Gibson | }; |
1126 | 354ac20a | David Gibson | |
1127 | 354ac20a | David Gibson | rma_region = g_new(MemoryRegion, 1);
|
1128 | 6148b23d | Avi Kivity | memory_region_init_ram_ptr(rma_region, name, size, rma); |
1129 | 6148b23d | Avi Kivity | vmstate_register_ram_global(rma_region); |
1130 | 354ac20a | David Gibson | memory_region_add_subregion(sysmem, 0, rma_region);
|
1131 | 354ac20a | David Gibson | |
1132 | 354ac20a | David Gibson | return size;
|
1133 | 354ac20a | David Gibson | } |
1134 | 354ac20a | David Gibson | |
1135 | 7f763a5d | David Gibson | uint64_t kvmppc_rma_size(uint64_t current_size, unsigned int hash_shift) |
1136 | 7f763a5d | David Gibson | { |
1137 | 7f763a5d | David Gibson | if (cap_ppc_rma >= 2) { |
1138 | 7f763a5d | David Gibson | return current_size;
|
1139 | 7f763a5d | David Gibson | } |
1140 | 7f763a5d | David Gibson | return MIN(current_size,
|
1141 | 7f763a5d | David Gibson | getrampagesize() << (hash_shift - 7));
|
1142 | 7f763a5d | David Gibson | } |
1143 | 7f763a5d | David Gibson | #endif
|
1144 | 7f763a5d | David Gibson | |
1145 | 0f5cb298 | David Gibson | void *kvmppc_create_spapr_tce(uint32_t liobn, uint32_t window_size, int *pfd) |
1146 | 0f5cb298 | David Gibson | { |
1147 | 0f5cb298 | David Gibson | struct kvm_create_spapr_tce args = {
|
1148 | 0f5cb298 | David Gibson | .liobn = liobn, |
1149 | 0f5cb298 | David Gibson | .window_size = window_size, |
1150 | 0f5cb298 | David Gibson | }; |
1151 | 0f5cb298 | David Gibson | long len;
|
1152 | 0f5cb298 | David Gibson | int fd;
|
1153 | 0f5cb298 | David Gibson | void *table;
|
1154 | 0f5cb298 | David Gibson | |
1155 | b5aec396 | David Gibson | /* Must set fd to -1 so we don't try to munmap when called for
|
1156 | b5aec396 | David Gibson | * destroying the table, which the upper layers -will- do
|
1157 | b5aec396 | David Gibson | */
|
1158 | b5aec396 | David Gibson | *pfd = -1;
|
1159 | 0f5cb298 | David Gibson | if (!cap_spapr_tce) {
|
1160 | 0f5cb298 | David Gibson | return NULL; |
1161 | 0f5cb298 | David Gibson | } |
1162 | 0f5cb298 | David Gibson | |
1163 | 0f5cb298 | David Gibson | fd = kvm_vm_ioctl(kvm_state, KVM_CREATE_SPAPR_TCE, &args); |
1164 | 0f5cb298 | David Gibson | if (fd < 0) { |
1165 | b5aec396 | David Gibson | fprintf(stderr, "KVM: Failed to create TCE table for liobn 0x%x\n",
|
1166 | b5aec396 | David Gibson | liobn); |
1167 | 0f5cb298 | David Gibson | return NULL; |
1168 | 0f5cb298 | David Gibson | } |
1169 | 0f5cb298 | David Gibson | |
1170 | ad0ebb91 | David Gibson | len = (window_size / SPAPR_TCE_PAGE_SIZE) * sizeof(sPAPRTCE);
|
1171 | 0f5cb298 | David Gibson | /* FIXME: round this up to page size */
|
1172 | 0f5cb298 | David Gibson | |
1173 | 74b41e56 | David Gibson | table = mmap(NULL, len, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0); |
1174 | 0f5cb298 | David Gibson | if (table == MAP_FAILED) {
|
1175 | b5aec396 | David Gibson | fprintf(stderr, "KVM: Failed to map TCE table for liobn 0x%x\n",
|
1176 | b5aec396 | David Gibson | liobn); |
1177 | 0f5cb298 | David Gibson | close(fd); |
1178 | 0f5cb298 | David Gibson | return NULL; |
1179 | 0f5cb298 | David Gibson | } |
1180 | 0f5cb298 | David Gibson | |
1181 | 0f5cb298 | David Gibson | *pfd = fd; |
1182 | 0f5cb298 | David Gibson | return table;
|
1183 | 0f5cb298 | David Gibson | } |
1184 | 0f5cb298 | David Gibson | |
1185 | 0f5cb298 | David Gibson | int kvmppc_remove_spapr_tce(void *table, int fd, uint32_t window_size) |
1186 | 0f5cb298 | David Gibson | { |
1187 | 0f5cb298 | David Gibson | long len;
|
1188 | 0f5cb298 | David Gibson | |
1189 | 0f5cb298 | David Gibson | if (fd < 0) { |
1190 | 0f5cb298 | David Gibson | return -1; |
1191 | 0f5cb298 | David Gibson | } |
1192 | 0f5cb298 | David Gibson | |
1193 | ad0ebb91 | David Gibson | len = (window_size / SPAPR_TCE_PAGE_SIZE)*sizeof(sPAPRTCE);
|
1194 | 0f5cb298 | David Gibson | if ((munmap(table, len) < 0) || |
1195 | 0f5cb298 | David Gibson | (close(fd) < 0)) {
|
1196 | b5aec396 | David Gibson | fprintf(stderr, "KVM: Unexpected error removing TCE table: %s",
|
1197 | b5aec396 | David Gibson | strerror(errno)); |
1198 | 0f5cb298 | David Gibson | /* Leak the table */
|
1199 | 0f5cb298 | David Gibson | } |
1200 | 0f5cb298 | David Gibson | |
1201 | 0f5cb298 | David Gibson | return 0; |
1202 | 0f5cb298 | David Gibson | } |
1203 | 0f5cb298 | David Gibson | |
1204 | 7f763a5d | David Gibson | int kvmppc_reset_htab(int shift_hint) |
1205 | 7f763a5d | David Gibson | { |
1206 | 7f763a5d | David Gibson | uint32_t shift = shift_hint; |
1207 | 7f763a5d | David Gibson | |
1208 | ace9a2cb | David Gibson | if (!kvm_enabled()) {
|
1209 | ace9a2cb | David Gibson | /* Full emulation, tell caller to allocate htab itself */
|
1210 | ace9a2cb | David Gibson | return 0; |
1211 | ace9a2cb | David Gibson | } |
1212 | ace9a2cb | David Gibson | if (kvm_check_extension(kvm_state, KVM_CAP_PPC_ALLOC_HTAB)) {
|
1213 | 7f763a5d | David Gibson | int ret;
|
1214 | 7f763a5d | David Gibson | ret = kvm_vm_ioctl(kvm_state, KVM_PPC_ALLOCATE_HTAB, &shift); |
1215 | ace9a2cb | David Gibson | if (ret == -ENOTTY) {
|
1216 | ace9a2cb | David Gibson | /* At least some versions of PR KVM advertise the
|
1217 | ace9a2cb | David Gibson | * capability, but don't implement the ioctl(). Oops.
|
1218 | ace9a2cb | David Gibson | * Return 0 so that we allocate the htab in qemu, as is
|
1219 | ace9a2cb | David Gibson | * correct for PR. */
|
1220 | ace9a2cb | David Gibson | return 0; |
1221 | ace9a2cb | David Gibson | } else if (ret < 0) { |
1222 | 7f763a5d | David Gibson | return ret;
|
1223 | 7f763a5d | David Gibson | } |
1224 | 7f763a5d | David Gibson | return shift;
|
1225 | 7f763a5d | David Gibson | } |
1226 | 7f763a5d | David Gibson | |
1227 | ace9a2cb | David Gibson | /* We have a kernel that predates the htab reset calls. For PR
|
1228 | ace9a2cb | David Gibson | * KVM, we need to allocate the htab ourselves, for an HV KVM of
|
1229 | ace9a2cb | David Gibson | * this era, it has allocated a 16MB fixed size hash table
|
1230 | ace9a2cb | David Gibson | * already. Kernels of this era have the GET_PVINFO capability
|
1231 | ace9a2cb | David Gibson | * only on PR, so we use this hack to determine the right
|
1232 | ace9a2cb | David Gibson | * answer */
|
1233 | ace9a2cb | David Gibson | if (kvm_check_extension(kvm_state, KVM_CAP_PPC_GET_PVINFO)) {
|
1234 | ace9a2cb | David Gibson | /* PR - tell caller to allocate htab */
|
1235 | ace9a2cb | David Gibson | return 0; |
1236 | ace9a2cb | David Gibson | } else {
|
1237 | ace9a2cb | David Gibson | /* HV - assume 16MB kernel allocated htab */
|
1238 | ace9a2cb | David Gibson | return 24; |
1239 | ace9a2cb | David Gibson | } |
1240 | 7f763a5d | David Gibson | } |
1241 | 7f763a5d | David Gibson | |
1242 | a1e98583 | David Gibson | static inline uint32_t mfpvr(void) |
1243 | a1e98583 | David Gibson | { |
1244 | a1e98583 | David Gibson | uint32_t pvr; |
1245 | a1e98583 | David Gibson | |
1246 | a1e98583 | David Gibson | asm ("mfpvr %0" |
1247 | a1e98583 | David Gibson | : "=r"(pvr));
|
1248 | a1e98583 | David Gibson | return pvr;
|
1249 | a1e98583 | David Gibson | } |
1250 | a1e98583 | David Gibson | |
1251 | a7342588 | David Gibson | static void alter_insns(uint64_t *word, uint64_t flags, bool on) |
1252 | a7342588 | David Gibson | { |
1253 | a7342588 | David Gibson | if (on) {
|
1254 | a7342588 | David Gibson | *word |= flags; |
1255 | a7342588 | David Gibson | } else {
|
1256 | a7342588 | David Gibson | *word &= ~flags; |
1257 | a7342588 | David Gibson | } |
1258 | a7342588 | David Gibson | } |
1259 | a7342588 | David Gibson | |
1260 | 2985b86b | Andreas Färber | static void kvmppc_host_cpu_initfn(Object *obj) |
1261 | a1e98583 | David Gibson | { |
1262 | 1b7ce68f | Andreas Färber | PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(obj); |
1263 | 1b7ce68f | Andreas Färber | |
1264 | 2985b86b | Andreas Färber | assert(kvm_enabled()); |
1265 | 1b7ce68f | Andreas Färber | |
1266 | 1b7ce68f | Andreas Färber | if (pcc->info->pvr != mfpvr()) {
|
1267 | 1b7ce68f | Andreas Färber | fprintf(stderr, "Your host CPU is unsupported.\n"
|
1268 | 1b7ce68f | Andreas Färber | "Please choose a supported model instead, see -cpu ?.\n");
|
1269 | 1b7ce68f | Andreas Färber | exit(1);
|
1270 | 1b7ce68f | Andreas Färber | } |
1271 | 2985b86b | Andreas Färber | } |
1272 | 2985b86b | Andreas Färber | |
1273 | 2985b86b | Andreas Färber | static void kvmppc_host_cpu_class_init(ObjectClass *oc, void *data) |
1274 | 2985b86b | Andreas Färber | { |
1275 | 2985b86b | Andreas Färber | PowerPCCPUClass *pcc = POWERPC_CPU_CLASS(oc); |
1276 | a1e98583 | David Gibson | uint32_t host_pvr = mfpvr(); |
1277 | 2985b86b | Andreas Färber | PowerPCCPUClass *pvr_pcc; |
1278 | a7342588 | David Gibson | ppc_def_t *spec; |
1279 | a7342588 | David Gibson | uint32_t vmx = kvmppc_get_vmx(); |
1280 | a7342588 | David Gibson | uint32_t dfp = kvmppc_get_dfp(); |
1281 | a1e98583 | David Gibson | |
1282 | a7342588 | David Gibson | spec = g_malloc0(sizeof(*spec));
|
1283 | 2985b86b | Andreas Färber | |
1284 | 2985b86b | Andreas Färber | pvr_pcc = ppc_cpu_class_by_pvr(host_pvr); |
1285 | 2985b86b | Andreas Färber | if (pvr_pcc != NULL) { |
1286 | 2985b86b | Andreas Färber | memcpy(spec, pvr_pcc->info, sizeof(*spec));
|
1287 | 2985b86b | Andreas Färber | } |
1288 | 2985b86b | Andreas Färber | pcc->info = spec; |
1289 | 2985b86b | Andreas Färber | /* Override the display name for -cpu ? and QMP */
|
1290 | 2985b86b | Andreas Färber | pcc->info->name = "host";
|
1291 | a7342588 | David Gibson | |
1292 | a7342588 | David Gibson | /* Now fix up the spec with information we can query from the host */
|
1293 | a7342588 | David Gibson | |
1294 | 70bca53f | Alexander Graf | if (vmx != -1) { |
1295 | 70bca53f | Alexander Graf | /* Only override when we know what the host supports */
|
1296 | 70bca53f | Alexander Graf | alter_insns(&spec->insns_flags, PPC_ALTIVEC, vmx > 0);
|
1297 | 70bca53f | Alexander Graf | alter_insns(&spec->insns_flags2, PPC2_VSX, vmx > 1);
|
1298 | 70bca53f | Alexander Graf | } |
1299 | 70bca53f | Alexander Graf | if (dfp != -1) { |
1300 | 70bca53f | Alexander Graf | /* Only override when we know what the host supports */
|
1301 | 70bca53f | Alexander Graf | alter_insns(&spec->insns_flags2, PPC2_DFP, dfp); |
1302 | 70bca53f | Alexander Graf | } |
1303 | a1e98583 | David Gibson | } |
1304 | a1e98583 | David Gibson | |
1305 | 55e5c285 | Andreas Färber | int kvmppc_fixup_cpu(PowerPCCPU *cpu)
|
1306 | 12b1143b | David Gibson | { |
1307 | 55e5c285 | Andreas Färber | CPUState *cs = CPU(cpu); |
1308 | 12b1143b | David Gibson | int smt;
|
1309 | 12b1143b | David Gibson | |
1310 | 12b1143b | David Gibson | /* Adjust cpu index for SMT */
|
1311 | 12b1143b | David Gibson | smt = kvmppc_smt_threads(); |
1312 | 55e5c285 | Andreas Färber | cs->cpu_index = (cs->cpu_index / smp_threads) * smt |
1313 | 55e5c285 | Andreas Färber | + (cs->cpu_index % smp_threads); |
1314 | 12b1143b | David Gibson | |
1315 | 12b1143b | David Gibson | return 0; |
1316 | 12b1143b | David Gibson | } |
1317 | 12b1143b | David Gibson | |
1318 | 12b1143b | David Gibson | |
1319 | 20d695a9 | Andreas Färber | bool kvm_arch_stop_on_emulation_error(CPUState *cpu)
|
1320 | 4513d923 | Gleb Natapov | { |
1321 | 4513d923 | Gleb Natapov | return true; |
1322 | 4513d923 | Gleb Natapov | } |
1323 | a1b87fe0 | Jan Kiszka | |
1324 | 20d695a9 | Andreas Färber | int kvm_arch_on_sigbus_vcpu(CPUState *cpu, int code, void *addr) |
1325 | a1b87fe0 | Jan Kiszka | { |
1326 | a1b87fe0 | Jan Kiszka | return 1; |
1327 | a1b87fe0 | Jan Kiszka | } |
1328 | a1b87fe0 | Jan Kiszka | |
1329 | a1b87fe0 | Jan Kiszka | int kvm_arch_on_sigbus(int code, void *addr) |
1330 | a1b87fe0 | Jan Kiszka | { |
1331 | a1b87fe0 | Jan Kiszka | return 1; |
1332 | a1b87fe0 | Jan Kiszka | } |
1333 | 2985b86b | Andreas Färber | |
1334 | 2985b86b | Andreas Färber | static const TypeInfo kvm_host_cpu_type_info = { |
1335 | 2985b86b | Andreas Färber | .name = TYPE_HOST_POWERPC_CPU, |
1336 | 2985b86b | Andreas Färber | .parent = TYPE_POWERPC_CPU, |
1337 | 2985b86b | Andreas Färber | .instance_init = kvmppc_host_cpu_initfn, |
1338 | 2985b86b | Andreas Färber | .class_init = kvmppc_host_cpu_class_init, |
1339 | 2985b86b | Andreas Färber | }; |
1340 | 2985b86b | Andreas Färber | |
1341 | 2985b86b | Andreas Färber | static void kvm_ppc_register_types(void) |
1342 | 2985b86b | Andreas Färber | { |
1343 | 2985b86b | Andreas Färber | type_register_static(&kvm_host_cpu_type_info); |
1344 | 2985b86b | Andreas Färber | } |
1345 | 2985b86b | Andreas Färber | |
1346 | 2985b86b | Andreas Färber | type_init(kvm_ppc_register_types) |