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KVM: x86 emulator: MMX support

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General support for the MMX instruction set.  Special care is taken
to trap pending x87 exceptions so that they are properly reflected
to the guest.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Avi Kivity
2012-04-09 18:40:02 +03:00
committed by Marcelo Tosatti
parent 3e114eb4db
commit cbe2c9d30a
2 changed files with 102 additions and 5 deletions
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4
arch/x86/include/asm/kvm_emulate.h
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@@ -200,7 +200,7 @@ typedef u32 __attribute__((vector_size(16))) sse128_t;
/* Type, address-of, and value of an instruction's operand. */
struct operand {
enum { OP_REG, OP_MEM, OP_IMM, OP_XMM, OP_NONE } type;
enum { OP_REG, OP_MEM, OP_IMM, OP_XMM, OP_MM, OP_NONE } type;
unsigned int bytes;
union {
unsigned long orig_val;
@@ -213,12 +213,14 @@ struct operand {
unsigned seg;
} mem;
unsigned xmm;
unsigned mm;
} addr;
union {
unsigned long val;
u64 val64;
char valptr[sizeof(unsigned long) + 2];
sse128_t vec_val;
u64 mm_val;
};
};