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kvm: add kvm_{vm,vcpu}_enable_cap 

Provide helper functions for enabling capabilities (on a vcpu and on a vm).

Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
This commit is contained in:
Cornelia Huck 2013-10-23 18:19:26 +02:00
parent b006f8162e
commit 40f1ee27aa
1 changed files with 30 additions and 0 deletions
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30
include/sysemu/kvm.h
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@ -294,6 +294,36 @@ bool kvm_arch_stop_on_emulation_error(CPUState *cpu);
int kvm_check_extension(KVMState *s, unsigned int extension);
#define kvm_vm_enable_cap(s, capability, cap_flags, ...) \
({ \
struct kvm_enable_cap cap = { \
.cap = capability, \
.flags = cap_flags, \
}; \
uint64_t args_tmp[] = { __VA_ARGS__ }; \
int i; \
for (i = 0; i < ARRAY_SIZE(args_tmp) && \
i < ARRAY_SIZE(cap.args); i++) { \
cap.args[i] = args_tmp[i]; \
} \
kvm_vm_ioctl(s, KVM_ENABLE_CAP, &cap); \
})
#define kvm_vcpu_enable_cap(cpu, capability, cap_flags, ...) \
({ \
struct kvm_enable_cap cap = { \
.cap = capability, \
.flags = cap_flags, \
}; \
uint64_t args_tmp[] = { __VA_ARGS__ }; \
int i; \
for (i = 0; i < ARRAY_SIZE(args_tmp) && \
i < ARRAY_SIZE(cap.args); i++) { \
cap.args[i] = args_tmp[i]; \
} \
kvm_vcpu_ioctl(cpu, KVM_ENABLE_CAP, &cap); \
})
uint32_t kvm_arch_get_supported_cpuid(KVMState *env, uint32_t function,
uint32_t index, int reg);