From: Mihai Donțu <mdontu@xxxxxxxxxxxxxxx>
This extends the previous xorpd by creating a dedicated group, something
I should have done since the very beginning.
Signed-off-by: Mihai Donțu <mdontu@xxxxxxxxxxxxxxx>
Signed-off-by: Adalbert Lazăr <alazar@xxxxxxxxxxxxxxx>
---
arch/x86/kvm/emulate.c | 22 +++++++++++++++++++++-
1 file changed, 21 insertions(+), 1 deletion(-)
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 28aac552b34b..14895c043edc 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -1178,6 +1178,22 @@ static int em_fnstsw(struct x86_emulate_ctxt *ctxt)
return X86EMUL_CONTINUE;
}
+static int em_xorps(struct x86_emulate_ctxt *ctxt)
+{
+ const sse128_t *src = &ctxt->src.vec_val;
+ sse128_t *dst = &ctxt->dst.vec_val;
+ sse128_t xmm0;
+
+ asm volatile("movdqu %%xmm0, %0\n"
+ "movdqu %1, %%xmm0\n"
+ "xorps %2, %%xmm0\n"
+ "movdqu %%xmm0, %1\n"
+ "movdqu %0, %%xmm0"
+ : "+m"(xmm0), "+m"(*dst) : "m"(*src));
+
+ return X86EMUL_CONTINUE;
+}
+
static int em_xorpd(struct x86_emulate_ctxt *ctxt)
{
const sse128_t *src = &ctxt->src.vec_val;
@@ -4615,6 +4631,10 @@ static const struct gprefix pfx_0f_e7 = {
N, I(Sse, em_mov), N, N,
};
+static const struct gprefix pfx_0f_57 = {
+ I(Unaligned, em_xorps), I(Unaligned, em_xorpd), N, N
+};
+
static const struct escape escape_d9 = { {
N, N, N, N, N, N, N, I(DstMem16 | Mov, em_fnstcw),
}, {
@@ -4847,7 +4867,7 @@ static const struct opcode twobyte_table[256] = {
/* 0x40 - 0x4F */
X16(D(DstReg | SrcMem | ModRM)),
/* 0x50 - 0x5F */
- N, N, N, N, N, N, N, I(SrcMem | DstReg | ModRM | Unaligned | Sse, em_xorpd),
+ N, N, N, N, N, N, N, GP(SrcMem | DstReg | ModRM | Sse, &pfx_0f_57),
N, N, N, N, N, N, N, N,
/* 0x60 - 0x6F */
N, N, N, N,
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