KVM: x86 emulator: SSE support

Add support for marking an instruction as SSE, switching registers used
to the SSE register file.

Signed-off-by: Avi Kivity <avi@redhat.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/arch/x86/include/asm/kvm_emulate.h b/arch/x86/include/asm/kvm_emulate.h
index 4c0e6822611..48693f0d384 100644
--- a/arch/x86/include/asm/kvm_emulate.h
+++ b/arch/x86/include/asm/kvm_emulate.h
@@ -162,9 +162,11 @@ struct x86_emulate_ops {
         void (*put_fpu)(struct x86_emulate_ctxt *ctxt); /* reenables preempt */
 };
 
+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_NONE } type;
+        enum { OP_REG, OP_MEM, OP_IMM, OP_XMM, OP_NONE } type;
         unsigned int bytes;
         union {
                 unsigned long orig_val;
@@ -176,11 +178,13 @@ struct operand {
                         ulong ea;
                         unsigned seg;
                 } mem;
+                unsigned xmm;
         } addr;
         union {
                 unsigned long val;
                 u64 val64;
                 char valptr[sizeof(unsigned long) + 2];
+                sse128_t vec_val;
         };
 };