Revision f43e3525
b/hw/spapr.c | ||
---|---|---|
52 | 52 |
sPAPREnvironment *spapr, |
53 | 53 |
target_phys_addr_t initrd_base, |
54 | 54 |
target_phys_addr_t initrd_size, |
55 |
const char *kernel_cmdline) |
|
55 |
const char *kernel_cmdline, |
|
56 |
long hash_shift) |
|
56 | 57 |
{ |
57 | 58 |
void *fdt; |
58 | 59 |
uint64_t mem_reg_property[] = { 0, cpu_to_be64(ramsize) }; |
59 | 60 |
uint32_t start_prop = cpu_to_be32(initrd_base); |
60 | 61 |
uint32_t end_prop = cpu_to_be32(initrd_base + initrd_size); |
62 |
uint32_t pft_size_prop[] = {0, cpu_to_be32(hash_shift)}; |
|
63 |
char hypertas_prop[] = "hcall-pft\0hcall-term"; |
|
61 | 64 |
int i; |
62 | 65 |
char *modelname; |
63 | 66 |
int ret; |
... | ... | |
145 | 148 |
* full emu, for kvm we should copy it from the host */ |
146 | 149 |
_FDT((fdt_property_cell(fdt, "clock-frequency", 1000000000))); |
147 | 150 |
_FDT((fdt_property_cell(fdt, "ibm,slb-size", env->slb_nr))); |
151 |
_FDT((fdt_property(fdt, "ibm,pft-size", |
|
152 |
pft_size_prop, sizeof(pft_size_prop)))); |
|
148 | 153 |
_FDT((fdt_property_string(fdt, "status", "okay"))); |
149 | 154 |
_FDT((fdt_property(fdt, "64-bit", NULL, 0))); |
150 | 155 |
|
... | ... | |
160 | 165 |
|
161 | 166 |
_FDT((fdt_end_node(fdt))); |
162 | 167 |
|
168 |
/* RTAS */ |
|
169 |
_FDT((fdt_begin_node(fdt, "rtas"))); |
|
170 |
|
|
171 |
_FDT((fdt_property(fdt, "ibm,hypertas-functions", hypertas_prop, |
|
172 |
sizeof(hypertas_prop)))); |
|
173 |
|
|
174 |
_FDT((fdt_end_node(fdt))); |
|
175 |
|
|
163 | 176 |
/* vdevice */ |
164 | 177 |
_FDT((fdt_begin_node(fdt, "vdevice"))); |
165 | 178 |
|
... | ... | |
208 | 221 |
const char *cpu_model) |
209 | 222 |
{ |
210 | 223 |
CPUState *envs[MAX_CPUS]; |
211 |
void *fdt; |
|
224 |
void *fdt, *htab;
|
|
212 | 225 |
int i; |
213 | 226 |
ram_addr_t ram_offset; |
214 | 227 |
target_phys_addr_t fdt_addr; |
215 | 228 |
uint32_t kernel_base, initrd_base; |
216 |
long kernel_size, initrd_size; |
|
229 |
long kernel_size, initrd_size, htab_size; |
|
230 |
long pteg_shift = 17; |
|
217 | 231 |
int fdt_size; |
218 | 232 |
|
219 | 233 |
spapr = qemu_malloc(sizeof(*spapr)); |
... | ... | |
250 | 264 |
ram_offset = qemu_ram_alloc(NULL, "ppc_spapr.ram", ram_size); |
251 | 265 |
cpu_register_physical_memory(0, ram_size, ram_offset); |
252 | 266 |
|
267 |
/* allocate hash page table. For now we always make this 16mb, |
|
268 |
* later we should probably make it scale to the size of guest |
|
269 |
* RAM */ |
|
270 |
htab_size = 1ULL << (pteg_shift + 7); |
|
271 |
htab = qemu_mallocz(htab_size); |
|
272 |
|
|
273 |
for (i = 0; i < smp_cpus; i++) { |
|
274 |
envs[i]->external_htab = htab; |
|
275 |
envs[i]->htab_base = -1; |
|
276 |
envs[i]->htab_mask = htab_size - 1; |
|
277 |
} |
|
278 |
|
|
253 | 279 |
spapr->vio_bus = spapr_vio_bus_init(); |
254 | 280 |
|
255 | 281 |
for (i = 0; i < MAX_SERIAL_PORTS; i++) { |
... | ... | |
296 | 322 |
|
297 | 323 |
/* Prepare the device tree */ |
298 | 324 |
fdt = spapr_create_fdt(&fdt_size, ram_size, cpu_model, envs, spapr, |
299 |
initrd_base, initrd_size, kernel_cmdline); |
|
325 |
initrd_base, initrd_size, kernel_cmdline, |
|
326 |
pteg_shift + 7); |
|
300 | 327 |
assert(fdt != NULL); |
301 | 328 |
|
302 | 329 |
cpu_physical_memory_write(fdt_addr, fdt, fdt_size); |
b/hw/spapr_hcall.c | ||
---|---|---|
1 | 1 |
#include "sysemu.h" |
2 | 2 |
#include "cpu.h" |
3 | 3 |
#include "qemu-char.h" |
4 |
#include "sysemu.h" |
|
5 |
#include "qemu-char.h" |
|
6 |
#include "exec-all.h" |
|
4 | 7 |
#include "hw/spapr.h" |
5 | 8 |
|
9 |
#define HPTES_PER_GROUP 8 |
|
10 |
|
|
11 |
#define HPTE_V_SSIZE_SHIFT 62 |
|
12 |
#define HPTE_V_AVPN_SHIFT 7 |
|
13 |
#define HPTE_V_AVPN 0x3fffffffffffff80ULL |
|
14 |
#define HPTE_V_AVPN_VAL(x) (((x) & HPTE_V_AVPN) >> HPTE_V_AVPN_SHIFT) |
|
15 |
#define HPTE_V_COMPARE(x, y) (!(((x) ^ (y)) & 0xffffffffffffff80UL)) |
|
16 |
#define HPTE_V_BOLTED 0x0000000000000010ULL |
|
17 |
#define HPTE_V_LOCK 0x0000000000000008ULL |
|
18 |
#define HPTE_V_LARGE 0x0000000000000004ULL |
|
19 |
#define HPTE_V_SECONDARY 0x0000000000000002ULL |
|
20 |
#define HPTE_V_VALID 0x0000000000000001ULL |
|
21 |
|
|
22 |
#define HPTE_R_PP0 0x8000000000000000ULL |
|
23 |
#define HPTE_R_TS 0x4000000000000000ULL |
|
24 |
#define HPTE_R_KEY_HI 0x3000000000000000ULL |
|
25 |
#define HPTE_R_RPN_SHIFT 12 |
|
26 |
#define HPTE_R_RPN 0x3ffffffffffff000ULL |
|
27 |
#define HPTE_R_FLAGS 0x00000000000003ffULL |
|
28 |
#define HPTE_R_PP 0x0000000000000003ULL |
|
29 |
#define HPTE_R_N 0x0000000000000004ULL |
|
30 |
#define HPTE_R_G 0x0000000000000008ULL |
|
31 |
#define HPTE_R_M 0x0000000000000010ULL |
|
32 |
#define HPTE_R_I 0x0000000000000020ULL |
|
33 |
#define HPTE_R_W 0x0000000000000040ULL |
|
34 |
#define HPTE_R_WIMG 0x0000000000000078ULL |
|
35 |
#define HPTE_R_C 0x0000000000000080ULL |
|
36 |
#define HPTE_R_R 0x0000000000000100ULL |
|
37 |
#define HPTE_R_KEY_LO 0x0000000000000e00ULL |
|
38 |
|
|
39 |
#define HPTE_V_1TB_SEG 0x4000000000000000ULL |
|
40 |
#define HPTE_V_VRMA_MASK 0x4001ffffff000000ULL |
|
41 |
|
|
42 |
#define HPTE_V_HVLOCK 0x40ULL |
|
43 |
|
|
44 |
static inline int lock_hpte(void *hpte, target_ulong bits) |
|
45 |
{ |
|
46 |
uint64_t pteh; |
|
47 |
|
|
48 |
pteh = ldq_p(hpte); |
|
49 |
|
|
50 |
/* We're protected by qemu's global lock here */ |
|
51 |
if (pteh & bits) { |
|
52 |
return 0; |
|
53 |
} |
|
54 |
stq_p(hpte, pteh | HPTE_V_HVLOCK); |
|
55 |
return 1; |
|
56 |
} |
|
57 |
|
|
58 |
static target_ulong compute_tlbie_rb(target_ulong v, target_ulong r, |
|
59 |
target_ulong pte_index) |
|
60 |
{ |
|
61 |
target_ulong rb, va_low; |
|
62 |
|
|
63 |
rb = (v & ~0x7fULL) << 16; /* AVA field */ |
|
64 |
va_low = pte_index >> 3; |
|
65 |
if (v & HPTE_V_SECONDARY) { |
|
66 |
va_low = ~va_low; |
|
67 |
} |
|
68 |
/* xor vsid from AVA */ |
|
69 |
if (!(v & HPTE_V_1TB_SEG)) { |
|
70 |
va_low ^= v >> 12; |
|
71 |
} else { |
|
72 |
va_low ^= v >> 24; |
|
73 |
} |
|
74 |
va_low &= 0x7ff; |
|
75 |
if (v & HPTE_V_LARGE) { |
|
76 |
rb |= 1; /* L field */ |
|
77 |
#if 0 /* Disable that P7 specific bit for now */ |
|
78 |
if (r & 0xff000) { |
|
79 |
/* non-16MB large page, must be 64k */ |
|
80 |
/* (masks depend on page size) */ |
|
81 |
rb |= 0x1000; /* page encoding in LP field */ |
|
82 |
rb |= (va_low & 0x7f) << 16; /* 7b of VA in AVA/LP field */ |
|
83 |
rb |= (va_low & 0xfe); /* AVAL field */ |
|
84 |
} |
|
85 |
#endif |
|
86 |
} else { |
|
87 |
/* 4kB page */ |
|
88 |
rb |= (va_low & 0x7ff) << 12; /* remaining 11b of AVA */ |
|
89 |
} |
|
90 |
rb |= (v >> 54) & 0x300; /* B field */ |
|
91 |
return rb; |
|
92 |
} |
|
93 |
|
|
94 |
static target_ulong h_enter(CPUState *env, sPAPREnvironment *spapr, |
|
95 |
target_ulong opcode, target_ulong *args) |
|
96 |
{ |
|
97 |
target_ulong flags = args[0]; |
|
98 |
target_ulong pte_index = args[1]; |
|
99 |
target_ulong pteh = args[2]; |
|
100 |
target_ulong ptel = args[3]; |
|
101 |
target_ulong porder; |
|
102 |
target_ulong i, pa; |
|
103 |
uint8_t *hpte; |
|
104 |
|
|
105 |
/* only handle 4k and 16M pages for now */ |
|
106 |
porder = 12; |
|
107 |
if (pteh & HPTE_V_LARGE) { |
|
108 |
#if 0 /* We don't support 64k pages yet */ |
|
109 |
if ((ptel & 0xf000) == 0x1000) { |
|
110 |
/* 64k page */ |
|
111 |
porder = 16; |
|
112 |
} else |
|
113 |
#endif |
|
114 |
if ((ptel & 0xff000) == 0) { |
|
115 |
/* 16M page */ |
|
116 |
porder = 24; |
|
117 |
/* lowest AVA bit must be 0 for 16M pages */ |
|
118 |
if (pteh & 0x80) { |
|
119 |
return H_PARAMETER; |
|
120 |
} |
|
121 |
} else { |
|
122 |
return H_PARAMETER; |
|
123 |
} |
|
124 |
} |
|
125 |
|
|
126 |
pa = ptel & HPTE_R_RPN; |
|
127 |
/* FIXME: bounds check the pa? */ |
|
128 |
|
|
129 |
/* Check WIMG */ |
|
130 |
if ((ptel & HPTE_R_WIMG) != HPTE_R_M) { |
|
131 |
return H_PARAMETER; |
|
132 |
} |
|
133 |
pteh &= ~0x60ULL; |
|
134 |
|
|
135 |
if ((pte_index * HASH_PTE_SIZE_64) & ~env->htab_mask) { |
|
136 |
return H_PARAMETER; |
|
137 |
} |
|
138 |
if (likely((flags & H_EXACT) == 0)) { |
|
139 |
pte_index &= ~7ULL; |
|
140 |
hpte = env->external_htab + (pte_index * HASH_PTE_SIZE_64); |
|
141 |
for (i = 0; ; ++i) { |
|
142 |
if (i == 8) { |
|
143 |
return H_PTEG_FULL; |
|
144 |
} |
|
145 |
if (((ldq_p(hpte) & HPTE_V_VALID) == 0) && |
|
146 |
lock_hpte(hpte, HPTE_V_HVLOCK | HPTE_V_VALID)) { |
|
147 |
break; |
|
148 |
} |
|
149 |
hpte += HASH_PTE_SIZE_64; |
|
150 |
} |
|
151 |
} else { |
|
152 |
i = 0; |
|
153 |
hpte = env->external_htab + (pte_index * HASH_PTE_SIZE_64); |
|
154 |
if (!lock_hpte(hpte, HPTE_V_HVLOCK | HPTE_V_VALID)) { |
|
155 |
return H_PTEG_FULL; |
|
156 |
} |
|
157 |
} |
|
158 |
stq_p(hpte + (HASH_PTE_SIZE_64/2), ptel); |
|
159 |
/* eieio(); FIXME: need some sort of barrier for smp? */ |
|
160 |
stq_p(hpte, pteh); |
|
161 |
|
|
162 |
assert(!(ldq_p(hpte) & HPTE_V_HVLOCK)); |
|
163 |
args[0] = pte_index + i; |
|
164 |
return H_SUCCESS; |
|
165 |
} |
|
166 |
|
|
167 |
static target_ulong h_remove(CPUState *env, sPAPREnvironment *spapr, |
|
168 |
target_ulong opcode, target_ulong *args) |
|
169 |
{ |
|
170 |
target_ulong flags = args[0]; |
|
171 |
target_ulong pte_index = args[1]; |
|
172 |
target_ulong avpn = args[2]; |
|
173 |
uint8_t *hpte; |
|
174 |
target_ulong v, r, rb; |
|
175 |
|
|
176 |
if ((pte_index * HASH_PTE_SIZE_64) & ~env->htab_mask) { |
|
177 |
return H_PARAMETER; |
|
178 |
} |
|
179 |
|
|
180 |
hpte = env->external_htab + (pte_index * HASH_PTE_SIZE_64); |
|
181 |
while (!lock_hpte(hpte, HPTE_V_HVLOCK)) { |
|
182 |
/* We have no real concurrency in qemu soft-emulation, so we |
|
183 |
* will never actually have a contested lock */ |
|
184 |
assert(0); |
|
185 |
} |
|
186 |
|
|
187 |
v = ldq_p(hpte); |
|
188 |
r = ldq_p(hpte + (HASH_PTE_SIZE_64/2)); |
|
189 |
|
|
190 |
if ((v & HPTE_V_VALID) == 0 || |
|
191 |
((flags & H_AVPN) && (v & ~0x7fULL) != avpn) || |
|
192 |
((flags & H_ANDCOND) && (v & avpn) != 0)) { |
|
193 |
stq_p(hpte, v & ~HPTE_V_HVLOCK); |
|
194 |
assert(!(ldq_p(hpte) & HPTE_V_HVLOCK)); |
|
195 |
return H_NOT_FOUND; |
|
196 |
} |
|
197 |
args[0] = v & ~HPTE_V_HVLOCK; |
|
198 |
args[1] = r; |
|
199 |
stq_p(hpte, 0); |
|
200 |
rb = compute_tlbie_rb(v, r, pte_index); |
|
201 |
ppc_tlb_invalidate_one(env, rb); |
|
202 |
assert(!(ldq_p(hpte) & HPTE_V_HVLOCK)); |
|
203 |
return H_SUCCESS; |
|
204 |
} |
|
205 |
|
|
206 |
static target_ulong h_protect(CPUState *env, sPAPREnvironment *spapr, |
|
207 |
target_ulong opcode, target_ulong *args) |
|
208 |
{ |
|
209 |
target_ulong flags = args[0]; |
|
210 |
target_ulong pte_index = args[1]; |
|
211 |
target_ulong avpn = args[2]; |
|
212 |
uint8_t *hpte; |
|
213 |
target_ulong v, r, rb; |
|
214 |
|
|
215 |
if ((pte_index * HASH_PTE_SIZE_64) & ~env->htab_mask) { |
|
216 |
return H_PARAMETER; |
|
217 |
} |
|
218 |
|
|
219 |
hpte = env->external_htab + (pte_index * HASH_PTE_SIZE_64); |
|
220 |
while (!lock_hpte(hpte, HPTE_V_HVLOCK)) { |
|
221 |
/* We have no real concurrency in qemu soft-emulation, so we |
|
222 |
* will never actually have a contested lock */ |
|
223 |
assert(0); |
|
224 |
} |
|
225 |
|
|
226 |
v = ldq_p(hpte); |
|
227 |
r = ldq_p(hpte + (HASH_PTE_SIZE_64/2)); |
|
228 |
|
|
229 |
if ((v & HPTE_V_VALID) == 0 || |
|
230 |
((flags & H_AVPN) && (v & ~0x7fULL) != avpn)) { |
|
231 |
stq_p(hpte, v & ~HPTE_V_HVLOCK); |
|
232 |
assert(!(ldq_p(hpte) & HPTE_V_HVLOCK)); |
|
233 |
return H_NOT_FOUND; |
|
234 |
} |
|
235 |
|
|
236 |
r &= ~(HPTE_R_PP0 | HPTE_R_PP | HPTE_R_N | |
|
237 |
HPTE_R_KEY_HI | HPTE_R_KEY_LO); |
|
238 |
r |= (flags << 55) & HPTE_R_PP0; |
|
239 |
r |= (flags << 48) & HPTE_R_KEY_HI; |
|
240 |
r |= flags & (HPTE_R_PP | HPTE_R_N | HPTE_R_KEY_LO); |
|
241 |
rb = compute_tlbie_rb(v, r, pte_index); |
|
242 |
stq_p(hpte, v & ~HPTE_V_VALID); |
|
243 |
ppc_tlb_invalidate_one(env, rb); |
|
244 |
stq_p(hpte + (HASH_PTE_SIZE_64/2), r); |
|
245 |
/* Don't need a memory barrier, due to qemu's global lock */ |
|
246 |
stq_p(hpte, v & ~HPTE_V_HVLOCK); |
|
247 |
assert(!(ldq_p(hpte) & HPTE_V_HVLOCK)); |
|
248 |
return H_SUCCESS; |
|
249 |
} |
|
250 |
|
|
6 | 251 |
spapr_hcall_fn hypercall_table[(MAX_HCALL_OPCODE / 4) + 1]; |
7 | 252 |
|
8 | 253 |
void spapr_register_hypercall(target_ulong opcode, spapr_hcall_fn fn) |
... | ... | |
39 | 284 |
hcall_dprintf("Unimplemented hcall 0x" TARGET_FMT_lx "\n", opcode); |
40 | 285 |
return H_FUNCTION; |
41 | 286 |
} |
287 |
|
|
288 |
static void hypercall_init(void) |
|
289 |
{ |
|
290 |
/* hcall-pft */ |
|
291 |
spapr_register_hypercall(H_ENTER, h_enter); |
|
292 |
spapr_register_hypercall(H_REMOVE, h_remove); |
|
293 |
spapr_register_hypercall(H_PROTECT, h_protect); |
|
294 |
} |
|
295 |
device_init(hypercall_init); |
b/target-ppc/cpu.h | ||
---|---|---|
670 | 670 |
target_phys_addr_t htab_base; |
671 | 671 |
target_phys_addr_t htab_mask; |
672 | 672 |
target_ulong sr[32]; |
673 |
/* externally stored hash table */ |
|
674 |
uint8_t *external_htab; |
|
673 | 675 |
/* BATs */ |
674 | 676 |
int nb_BATs; |
675 | 677 |
target_ulong DBAT[2][8]; |
b/target-ppc/helper.c | ||
---|---|---|
589 | 589 |
for (i = 0; i < 8; i++) { |
590 | 590 |
#if defined(TARGET_PPC64) |
591 | 591 |
if (is_64b) { |
592 |
pte0 = ldq_phys(env->htab_base + pteg_off + (i * 16)); |
|
593 |
pte1 = ldq_phys(env->htab_base + pteg_off + (i * 16) + 8); |
|
592 |
if (env->external_htab) { |
|
593 |
pte0 = ldq_p(env->external_htab + pteg_off + (i * 16)); |
|
594 |
pte1 = ldq_p(env->external_htab + pteg_off + (i * 16) + 8); |
|
595 |
} else { |
|
596 |
pte0 = ldq_phys(env->htab_base + pteg_off + (i * 16)); |
|
597 |
pte1 = ldq_phys(env->htab_base + pteg_off + (i * 16) + 8); |
|
598 |
} |
|
594 | 599 |
|
595 | 600 |
/* We have a TLB that saves 4K pages, so let's |
596 | 601 |
* split a huge page to 4k chunks */ |
... | ... | |
606 | 611 |
} else |
607 | 612 |
#endif |
608 | 613 |
{ |
609 |
pte0 = ldl_phys(env->htab_base + pteg_off + (i * 8)); |
|
610 |
pte1 = ldl_phys(env->htab_base + pteg_off + (i * 8) + 4); |
|
614 |
if (env->external_htab) { |
|
615 |
pte0 = ldl_p(env->external_htab + pteg_off + (i * 8)); |
|
616 |
pte1 = ldl_p(env->external_htab + pteg_off + (i * 8) + 4); |
|
617 |
} else { |
|
618 |
pte0 = ldl_phys(env->htab_base + pteg_off + (i * 8)); |
|
619 |
pte1 = ldl_phys(env->htab_base + pteg_off + (i * 8) + 4); |
|
620 |
} |
|
611 | 621 |
r = pte32_check(ctx, pte0, pte1, h, rw, type); |
612 | 622 |
LOG_MMU("Load pte from " TARGET_FMT_lx " => " TARGET_FMT_lx " " |
613 | 623 |
TARGET_FMT_lx " %d %d %d " TARGET_FMT_lx "\n", |
... | ... | |
647 | 657 |
if (pte_update_flags(ctx, &pte1, ret, rw) == 1) { |
648 | 658 |
#if defined(TARGET_PPC64) |
649 | 659 |
if (is_64b) { |
650 |
stq_phys_notdirty(env->htab_base + pteg_off + (good * 16) + 8, |
|
651 |
pte1); |
|
660 |
if (env->external_htab) { |
|
661 |
stq_p(env->external_htab + pteg_off + (good * 16) + 8, |
|
662 |
pte1); |
|
663 |
} else { |
|
664 |
stq_phys_notdirty(env->htab_base + pteg_off + |
|
665 |
(good * 16) + 8, pte1); |
|
666 |
} |
|
652 | 667 |
} else |
653 | 668 |
#endif |
654 | 669 |
{ |
655 |
stl_phys_notdirty(env->htab_base + pteg_off + (good * 8) + 4, |
|
656 |
pte1); |
|
670 |
if (env->external_htab) { |
|
671 |
stl_p(env->external_htab + pteg_off + (good * 8) + 4, |
|
672 |
pte1); |
|
673 |
} else { |
|
674 |
stl_phys_notdirty(env->htab_base + pteg_off + |
|
675 |
(good * 8) + 4, pte1); |
|
676 |
} |
|
657 | 677 |
} |
658 | 678 |
} |
659 | 679 |
} |
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