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1 | 05330448 | aliguori | /*
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2 | 05330448 | aliguori | * QEMU KVM support
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3 | 05330448 | aliguori | *
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4 | 05330448 | aliguori | * Copyright IBM, Corp. 2008
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5 | 05330448 | aliguori | *
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6 | 05330448 | aliguori | * Authors:
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7 | 05330448 | aliguori | * Anthony Liguori <aliguori@us.ibm.com>
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8 | 05330448 | aliguori | *
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9 | 05330448 | aliguori | * This work is licensed under the terms of the GNU GPL, version 2 or later.
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10 | 05330448 | aliguori | * See the COPYING file in the top-level directory.
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11 | 05330448 | aliguori | *
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12 | 05330448 | aliguori | */
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13 | 05330448 | aliguori | |
14 | 05330448 | aliguori | #ifndef QEMU_KVM_H
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15 | 05330448 | aliguori | #define QEMU_KVM_H
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16 | 05330448 | aliguori | |
17 | ca821806 | Michael S. Tsirkin | #include <errno.h> |
18 | 1c14f162 | Blue Swirl | #include "config-host.h" |
19 | 72cf2d4f | Blue Swirl | #include "qemu-queue.h" |
20 | 05330448 | aliguori | |
21 | ca821806 | Michael S. Tsirkin | #ifdef CONFIG_KVM
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22 | ca821806 | Michael S. Tsirkin | #include <linux/kvm.h> |
23 | ca821806 | Michael S. Tsirkin | #endif
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24 | 05330448 | aliguori | |
25 | ca821806 | Michael S. Tsirkin | extern int kvm_allowed; |
26 | 3d4b2649 | Jan Kiszka | extern bool kvm_kernel_irqchip; |
27 | 7ae26bd4 | Peter Maydell | extern bool kvm_async_interrupts_allowed; |
28 | cc7e0ddf | Peter Maydell | extern bool kvm_irqfds_allowed; |
29 | 614e41bc | Peter Maydell | extern bool kvm_msi_via_irqfd_allowed; |
30 | f3e1bed8 | Peter Maydell | extern bool kvm_gsi_routing_allowed; |
31 | 98c8573e | Paolo Bonzini | |
32 | 98c8573e | Paolo Bonzini | #if defined CONFIG_KVM || !defined NEED_CPU_H
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33 | 3d4b2649 | Jan Kiszka | #define kvm_enabled() (kvm_allowed)
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34 | 96fda35a | Peter Maydell | /**
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35 | 96fda35a | Peter Maydell | * kvm_irqchip_in_kernel:
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36 | 96fda35a | Peter Maydell | *
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37 | 96fda35a | Peter Maydell | * Returns: true if the user asked us to create an in-kernel
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38 | 96fda35a | Peter Maydell | * irqchip via the "kernel_irqchip=on" machine option.
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39 | 96fda35a | Peter Maydell | * What this actually means is architecture and machine model
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40 | 96fda35a | Peter Maydell | * specific: on PC, for instance, it means that the LAPIC,
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41 | 96fda35a | Peter Maydell | * IOAPIC and PIT are all in kernel. This function should never
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42 | 96fda35a | Peter Maydell | * be used from generic target-independent code: use one of the
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43 | 96fda35a | Peter Maydell | * following functions or some other specific check instead.
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44 | 96fda35a | Peter Maydell | */
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45 | 3d4b2649 | Jan Kiszka | #define kvm_irqchip_in_kernel() (kvm_kernel_irqchip)
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46 | 7ae26bd4 | Peter Maydell | |
47 | 7ae26bd4 | Peter Maydell | /**
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48 | 7ae26bd4 | Peter Maydell | * kvm_async_interrupts_enabled:
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49 | 7ae26bd4 | Peter Maydell | *
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50 | 7ae26bd4 | Peter Maydell | * Returns: true if we can deliver interrupts to KVM
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51 | 7ae26bd4 | Peter Maydell | * asynchronously (ie by ioctl from any thread at any time)
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52 | 7ae26bd4 | Peter Maydell | * rather than having to do interrupt delivery synchronously
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53 | 7ae26bd4 | Peter Maydell | * (where the vcpu must be stopped at a suitable point first).
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54 | 7ae26bd4 | Peter Maydell | */
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55 | 7ae26bd4 | Peter Maydell | #define kvm_async_interrupts_enabled() (kvm_async_interrupts_allowed)
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56 | 7ae26bd4 | Peter Maydell | |
57 | cc7e0ddf | Peter Maydell | /**
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58 | cc7e0ddf | Peter Maydell | * kvm_irqfds_enabled:
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59 | cc7e0ddf | Peter Maydell | *
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60 | cc7e0ddf | Peter Maydell | * Returns: true if we can use irqfds to inject interrupts into
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61 | cc7e0ddf | Peter Maydell | * a KVM CPU (ie the kernel supports irqfds and we are running
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62 | cc7e0ddf | Peter Maydell | * with a configuration where it is meaningful to use them).
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63 | cc7e0ddf | Peter Maydell | */
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64 | cc7e0ddf | Peter Maydell | #define kvm_irqfds_enabled() (kvm_irqfds_allowed)
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65 | cc7e0ddf | Peter Maydell | |
66 | 614e41bc | Peter Maydell | /**
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67 | 614e41bc | Peter Maydell | * kvm_msi_via_irqfd_enabled:
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68 | 614e41bc | Peter Maydell | *
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69 | 614e41bc | Peter Maydell | * Returns: true if we can route a PCI MSI (Message Signaled Interrupt)
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70 | 614e41bc | Peter Maydell | * to a KVM CPU via an irqfd. This requires that the kernel supports
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71 | 614e41bc | Peter Maydell | * this and that we're running in a configuration that permits it.
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72 | 614e41bc | Peter Maydell | */
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73 | 614e41bc | Peter Maydell | #define kvm_msi_via_irqfd_enabled() (kvm_msi_via_irqfd_allowed)
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74 | 614e41bc | Peter Maydell | |
75 | f3e1bed8 | Peter Maydell | /**
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76 | f3e1bed8 | Peter Maydell | * kvm_gsi_routing_enabled:
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77 | f3e1bed8 | Peter Maydell | *
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78 | f3e1bed8 | Peter Maydell | * Returns: true if GSI routing is enabled (ie the kernel supports
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79 | f3e1bed8 | Peter Maydell | * it and we're running in a configuration that permits it).
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80 | f3e1bed8 | Peter Maydell | */
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81 | f3e1bed8 | Peter Maydell | #define kvm_gsi_routing_enabled() (kvm_gsi_routing_allowed)
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82 | f3e1bed8 | Peter Maydell | |
83 | 05330448 | aliguori | #else
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84 | 3d4b2649 | Jan Kiszka | #define kvm_enabled() (0) |
85 | 3d4b2649 | Jan Kiszka | #define kvm_irqchip_in_kernel() (false) |
86 | 7ae26bd4 | Peter Maydell | #define kvm_async_interrupts_enabled() (false) |
87 | cc7e0ddf | Peter Maydell | #define kvm_irqfds_enabled() (false) |
88 | 614e41bc | Peter Maydell | #define kvm_msi_via_irqfd_enabled() (false) |
89 | f3e1bed8 | Peter Maydell | #define kvm_gsi_routing_allowed() (false) |
90 | 05330448 | aliguori | #endif
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91 | 05330448 | aliguori | |
92 | 05330448 | aliguori | struct kvm_run;
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93 | 680c1c6f | Jan Kiszka | struct kvm_lapic_state;
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94 | 05330448 | aliguori | |
95 | 94a8d39a | Jan Kiszka | typedef struct KVMCapabilityInfo { |
96 | 94a8d39a | Jan Kiszka | const char *name; |
97 | 94a8d39a | Jan Kiszka | int value;
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98 | 94a8d39a | Jan Kiszka | } KVMCapabilityInfo; |
99 | 94a8d39a | Jan Kiszka | |
100 | 94a8d39a | Jan Kiszka | #define KVM_CAP_INFO(CAP) { "KVM_CAP_" stringify(CAP), KVM_CAP_##CAP } |
101 | 94a8d39a | Jan Kiszka | #define KVM_CAP_LAST_INFO { NULL, 0 } |
102 | 94a8d39a | Jan Kiszka | |
103 | 92b4e489 | Jan Kiszka | struct KVMState;
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104 | 92b4e489 | Jan Kiszka | typedef struct KVMState KVMState; |
105 | 92b4e489 | Jan Kiszka | extern KVMState *kvm_state;
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106 | 92b4e489 | Jan Kiszka | |
107 | 05330448 | aliguori | /* external API */
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108 | 05330448 | aliguori | |
109 | cad1e282 | Jan Kiszka | int kvm_init(void); |
110 | 05330448 | aliguori | |
111 | 00a1555e | Paolo Bonzini | int kvm_has_sync_mmu(void); |
112 | 00a1555e | Paolo Bonzini | int kvm_has_vcpu_events(void); |
113 | 00a1555e | Paolo Bonzini | int kvm_has_robust_singlestep(void); |
114 | ff44f1a3 | Jan Kiszka | int kvm_has_debugregs(void); |
115 | f1665b21 | Sheng Yang | int kvm_has_xsave(void); |
116 | f1665b21 | Sheng Yang | int kvm_has_xcrs(void); |
117 | 8a7c7393 | Jan Kiszka | int kvm_has_pit_state2(void); |
118 | d2f2b8a7 | Stefan Hajnoczi | int kvm_has_many_ioeventfds(void); |
119 | 84b058d7 | Jan Kiszka | int kvm_has_gsi_routing(void); |
120 | 3ab73842 | Jan Kiszka | int kvm_has_intx_set_mask(void); |
121 | 00a1555e | Paolo Bonzini | |
122 | 1c14f162 | Blue Swirl | #ifdef NEED_CPU_H
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123 | 9349b4f9 | Andreas Färber | int kvm_init_vcpu(CPUArchState *env);
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124 | 05330448 | aliguori | |
125 | 9349b4f9 | Andreas Färber | int kvm_cpu_exec(CPUArchState *env);
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126 | 05330448 | aliguori | |
127 | b3755a91 | Paul Brook | #if !defined(CONFIG_USER_ONLY)
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128 | fdec9918 | Christian Borntraeger | void *kvm_vmalloc(ram_addr_t size);
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129 | fdec9918 | Christian Borntraeger | void *kvm_arch_vmalloc(ram_addr_t size);
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130 | 6f0437e8 | Jan Kiszka | void kvm_setup_guest_memory(void *start, size_t size); |
131 | 6f0437e8 | Jan Kiszka | |
132 | 62a2744c | Sheng Yang | void kvm_flush_coalesced_mmio_buffer(void); |
133 | b3755a91 | Paul Brook | #endif
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134 | f65ed4c1 | aliguori | |
135 | 9349b4f9 | Andreas Färber | int kvm_insert_breakpoint(CPUArchState *current_env, target_ulong addr,
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136 | e22a25c9 | aliguori | target_ulong len, int type);
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137 | 9349b4f9 | Andreas Färber | int kvm_remove_breakpoint(CPUArchState *current_env, target_ulong addr,
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138 | e22a25c9 | aliguori | target_ulong len, int type);
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139 | 9349b4f9 | Andreas Färber | void kvm_remove_all_breakpoints(CPUArchState *current_env);
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140 | 9349b4f9 | Andreas Färber | int kvm_update_guest_debug(CPUArchState *env, unsigned long reinject_trap); |
141 | 20c20526 | Blue Swirl | #ifndef _WIN32
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142 | 9349b4f9 | Andreas Färber | int kvm_set_signal_mask(CPUArchState *env, const sigset_t *sigset); |
143 | 20c20526 | Blue Swirl | #endif
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144 | e22a25c9 | aliguori | |
145 | 9349b4f9 | Andreas Färber | int kvm_on_sigbus_vcpu(CPUArchState *env, int code, void *addr); |
146 | a1b87fe0 | Jan Kiszka | int kvm_on_sigbus(int code, void *addr); |
147 | a1b87fe0 | Jan Kiszka | |
148 | 05330448 | aliguori | /* internal API */
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149 | 05330448 | aliguori | |
150 | 984b5181 | aliguori | int kvm_ioctl(KVMState *s, int type, ...); |
151 | 05330448 | aliguori | |
152 | 984b5181 | aliguori | int kvm_vm_ioctl(KVMState *s, int type, ...); |
153 | 05330448 | aliguori | |
154 | 9349b4f9 | Andreas Färber | int kvm_vcpu_ioctl(CPUArchState *env, int type, ...); |
155 | 05330448 | aliguori | |
156 | 05330448 | aliguori | /* Arch specific hooks */
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157 | 05330448 | aliguori | |
158 | 94a8d39a | Jan Kiszka | extern const KVMCapabilityInfo kvm_arch_required_capabilities[]; |
159 | 94a8d39a | Jan Kiszka | |
160 | 9349b4f9 | Andreas Färber | void kvm_arch_pre_run(CPUArchState *env, struct kvm_run *run); |
161 | 9349b4f9 | Andreas Färber | void kvm_arch_post_run(CPUArchState *env, struct kvm_run *run); |
162 | 05330448 | aliguori | |
163 | 9349b4f9 | Andreas Färber | int kvm_arch_handle_exit(CPUArchState *env, struct kvm_run *run); |
164 | 05330448 | aliguori | |
165 | 9349b4f9 | Andreas Färber | int kvm_arch_process_async_events(CPUArchState *env);
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166 | 0af691d7 | Marcelo Tosatti | |
167 | 9349b4f9 | Andreas Färber | int kvm_arch_get_registers(CPUArchState *env);
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168 | 05330448 | aliguori | |
169 | ea375f9a | Jan Kiszka | /* state subset only touched by the VCPU itself during runtime */
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170 | ea375f9a | Jan Kiszka | #define KVM_PUT_RUNTIME_STATE 1 |
171 | ea375f9a | Jan Kiszka | /* state subset modified during VCPU reset */
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172 | ea375f9a | Jan Kiszka | #define KVM_PUT_RESET_STATE 2 |
173 | ea375f9a | Jan Kiszka | /* full state set, modified during initialization or on vmload */
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174 | ea375f9a | Jan Kiszka | #define KVM_PUT_FULL_STATE 3 |
175 | ea375f9a | Jan Kiszka | |
176 | 9349b4f9 | Andreas Färber | int kvm_arch_put_registers(CPUArchState *env, int level); |
177 | 05330448 | aliguori | |
178 | cad1e282 | Jan Kiszka | int kvm_arch_init(KVMState *s);
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179 | 05330448 | aliguori | |
180 | 9349b4f9 | Andreas Färber | int kvm_arch_init_vcpu(CPUArchState *env);
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181 | 05330448 | aliguori | |
182 | 9349b4f9 | Andreas Färber | void kvm_arch_reset_vcpu(CPUArchState *env);
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183 | caa5af0f | Jan Kiszka | |
184 | 9349b4f9 | Andreas Färber | int kvm_arch_on_sigbus_vcpu(CPUArchState *env, int code, void *addr); |
185 | a1b87fe0 | Jan Kiszka | int kvm_arch_on_sigbus(int code, void *addr); |
186 | c0532a76 | Marcelo Tosatti | |
187 | 84b058d7 | Jan Kiszka | void kvm_arch_init_irq_routing(KVMState *s);
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188 | 84b058d7 | Jan Kiszka | |
189 | 3889c3fa | Peter Maydell | int kvm_set_irq(KVMState *s, int irq, int level); |
190 | 04fa27f5 | Jan Kiszka | int kvm_irqchip_send_msi(KVMState *s, MSIMessage msg);
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191 | 84b058d7 | Jan Kiszka | |
192 | 1df186df | Jan Kiszka | void kvm_irqchip_add_irq_route(KVMState *s, int gsi, int irqchip, int pin); |
193 | 84b058d7 | Jan Kiszka | |
194 | 680c1c6f | Jan Kiszka | void kvm_put_apic_state(DeviceState *d, struct kvm_lapic_state *kapic); |
195 | 680c1c6f | Jan Kiszka | void kvm_get_apic_state(DeviceState *d, struct kvm_lapic_state *kapic); |
196 | 680c1c6f | Jan Kiszka | |
197 | e22a25c9 | aliguori | struct kvm_guest_debug;
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198 | e22a25c9 | aliguori | struct kvm_debug_exit_arch;
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199 | e22a25c9 | aliguori | |
200 | e22a25c9 | aliguori | struct kvm_sw_breakpoint {
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201 | e22a25c9 | aliguori | target_ulong pc; |
202 | e22a25c9 | aliguori | target_ulong saved_insn; |
203 | e22a25c9 | aliguori | int use_count;
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204 | 72cf2d4f | Blue Swirl | QTAILQ_ENTRY(kvm_sw_breakpoint) entry; |
205 | e22a25c9 | aliguori | }; |
206 | e22a25c9 | aliguori | |
207 | 72cf2d4f | Blue Swirl | QTAILQ_HEAD(kvm_sw_breakpoint_head, kvm_sw_breakpoint); |
208 | e22a25c9 | aliguori | |
209 | 9349b4f9 | Andreas Färber | struct kvm_sw_breakpoint *kvm_find_sw_breakpoint(CPUArchState *env,
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210 | e22a25c9 | aliguori | target_ulong pc); |
211 | e22a25c9 | aliguori | |
212 | 9349b4f9 | Andreas Färber | int kvm_sw_breakpoints_active(CPUArchState *env);
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213 | e22a25c9 | aliguori | |
214 | 9349b4f9 | Andreas Färber | int kvm_arch_insert_sw_breakpoint(CPUArchState *current_env,
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215 | e22a25c9 | aliguori | struct kvm_sw_breakpoint *bp);
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216 | 9349b4f9 | Andreas Färber | int kvm_arch_remove_sw_breakpoint(CPUArchState *current_env,
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217 | e22a25c9 | aliguori | struct kvm_sw_breakpoint *bp);
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218 | e22a25c9 | aliguori | int kvm_arch_insert_hw_breakpoint(target_ulong addr,
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219 | e22a25c9 | aliguori | target_ulong len, int type);
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220 | e22a25c9 | aliguori | int kvm_arch_remove_hw_breakpoint(target_ulong addr,
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221 | e22a25c9 | aliguori | target_ulong len, int type);
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222 | e22a25c9 | aliguori | void kvm_arch_remove_all_hw_breakpoints(void); |
223 | e22a25c9 | aliguori | |
224 | 9349b4f9 | Andreas Färber | void kvm_arch_update_guest_debug(CPUArchState *env, struct kvm_guest_debug *dbg); |
225 | e22a25c9 | aliguori | |
226 | 9349b4f9 | Andreas Färber | bool kvm_arch_stop_on_emulation_error(CPUArchState *env);
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227 | 4513d923 | Gleb Natapov | |
228 | ad7b8b33 | Anthony Liguori | int kvm_check_extension(KVMState *s, unsigned int extension); |
229 | ad7b8b33 | Anthony Liguori | |
230 | ba9bc59e | Jan Kiszka | uint32_t kvm_arch_get_supported_cpuid(KVMState *env, uint32_t function, |
231 | c958a8bd | Sheng Yang | uint32_t index, int reg);
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232 | 9349b4f9 | Andreas Färber | void kvm_cpu_synchronize_state(CPUArchState *env);
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233 | 9349b4f9 | Andreas Färber | void kvm_cpu_synchronize_post_reset(CPUArchState *env);
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234 | 9349b4f9 | Andreas Färber | void kvm_cpu_synchronize_post_init(CPUArchState *env);
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235 | b827df58 | Avi Kivity | |
236 | e22a25c9 | aliguori | /* generic hooks - to be moved/refactored once there are more users */
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237 | e22a25c9 | aliguori | |
238 | 9349b4f9 | Andreas Färber | static inline void cpu_synchronize_state(CPUArchState *env) |
239 | e22a25c9 | aliguori | { |
240 | e22a25c9 | aliguori | if (kvm_enabled()) {
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241 | 4c0960c0 | Avi Kivity | kvm_cpu_synchronize_state(env); |
242 | e22a25c9 | aliguori | } |
243 | e22a25c9 | aliguori | } |
244 | e22a25c9 | aliguori | |
245 | 9349b4f9 | Andreas Färber | static inline void cpu_synchronize_post_reset(CPUArchState *env) |
246 | ea375f9a | Jan Kiszka | { |
247 | ea375f9a | Jan Kiszka | if (kvm_enabled()) {
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248 | ea375f9a | Jan Kiszka | kvm_cpu_synchronize_post_reset(env); |
249 | ea375f9a | Jan Kiszka | } |
250 | ea375f9a | Jan Kiszka | } |
251 | ea375f9a | Jan Kiszka | |
252 | 9349b4f9 | Andreas Färber | static inline void cpu_synchronize_post_init(CPUArchState *env) |
253 | ea375f9a | Jan Kiszka | { |
254 | ea375f9a | Jan Kiszka | if (kvm_enabled()) {
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255 | ea375f9a | Jan Kiszka | kvm_cpu_synchronize_post_init(env); |
256 | ea375f9a | Jan Kiszka | } |
257 | ea375f9a | Jan Kiszka | } |
258 | ca821806 | Michael S. Tsirkin | |
259 | 983dfc3b | Huang Ying | |
260 | 983dfc3b | Huang Ying | #if !defined(CONFIG_USER_ONLY)
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261 | 9f213ed9 | Avi Kivity | int kvm_physical_memory_addr_from_host(KVMState *s, void *ram_addr, |
262 | a8170e5e | Avi Kivity | hwaddr *phys_addr); |
263 | 983dfc3b | Huang Ying | #endif
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264 | 983dfc3b | Huang Ying | |
265 | ca821806 | Michael S. Tsirkin | #endif
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266 | 4b8f1c88 | Michael S. Tsirkin | int kvm_set_ioeventfd_mmio(int fd, uint32_t adr, uint32_t val, bool assign, |
267 | 4b8f1c88 | Michael S. Tsirkin | uint32_t size); |
268 | ca821806 | Michael S. Tsirkin | |
269 | 98c8573e | Paolo Bonzini | int kvm_set_ioeventfd_pio_word(int fd, uint16_t adr, uint16_t val, bool assign); |
270 | 92b4e489 | Jan Kiszka | |
271 | 92b4e489 | Jan Kiszka | int kvm_irqchip_add_msi_route(KVMState *s, MSIMessage msg);
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272 | cc57407e | Jan Kiszka | int kvm_irqchip_update_msi_route(KVMState *s, int virq, MSIMessage msg); |
273 | 1e2aa8be | Jan Kiszka | void kvm_irqchip_release_virq(KVMState *s, int virq); |
274 | 39853bbc | Jan Kiszka | |
275 | b131c74a | Jan Kiszka | int kvm_irqchip_add_irqfd_notifier(KVMState *s, EventNotifier *n, int virq); |
276 | b131c74a | Jan Kiszka | int kvm_irqchip_remove_irqfd_notifier(KVMState *s, EventNotifier *n, int virq); |
277 | 05330448 | aliguori | #endif |