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KVM: x86: extend "struct x86_emulate_ops" with "get_cpuid"

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In order to be able to proceed checks on CPU-specific properties
within the emulator, function "get_cpuid" is introduced.
With "get_cpuid" it is possible to virtually call the guests
"cpuid"-opcode without changing the VM's context.

[mtosatti: cleanup/beautify code]

Signed-off-by: Stephan Baerwolf <stephan.baerwolf@tu-ilmenau.de>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Stephan Bärwolf
2012-01-12 16:43:03 +01:00
committed by Avi Kivity
parent 50e92b3c97
commit bdb42f5afe
2 changed files with 26 additions and 0 deletions
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arch/x86/include/asm/kvm_emulate.h
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@@ -190,6 +190,9 @@ struct x86_emulate_ops {
int (*intercept)(struct x86_emulate_ctxt *ctxt,
struct x86_instruction_info *info,
enum x86_intercept_stage stage);
bool (*get_cpuid)(struct x86_emulate_ctxt *ctxt,
u32 *eax, u32 *ebx, u32 *ecx, u32 *edx);
};
typedef u32 __attribute__((vector_size(16))) sse128_t;