kvm: Add emulation for movups/movupd

This is very similar to the aligned versions movaps/movapd.

We have seen the corresponding emulation failures with openbsd as guest
and with Windows 10 with intel HD graphics pass through.

Signed-off-by: Christian Ehrhardt <christian_ehrhardt@genua.de>
Signed-off-by: Stefan Fritsch <sf@sfritsch.de>
Reviewed-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index dd88158a0eed82bd71b47fe4fd11a2c066b2933a..b3705ae52824907085bb613cd1e16a843138e8b0 100644 (file)
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -4517,6 +4517,10 @@ static const struct gprefix pfx_0f_2b = {
        ID(0, &instr_dual_0f_2b), ID(0, &instr_dual_0f_2b), N, N,
 };
 
+static const struct gprefix pfx_0f_10_0f_11 = {
+       I(Unaligned, em_mov), I(Unaligned, em_mov), N, N,
+};
+
 static const struct gprefix pfx_0f_28_0f_29 = {
        I(Aligned, em_mov), I(Aligned, em_mov), N, N,
 };
@@ -4728,7 +4732,9 @@ static const struct opcode twobyte_table[256] = {
        DI(ImplicitOps | Priv, invd), DI(ImplicitOps | Priv, wbinvd), N, N,
        N, D(ImplicitOps | ModRM | SrcMem | NoAccess), N, N,
        /* 0x10 - 0x1F */
-       N, N, N, N, N, N, N, N,
+       GP(ModRM | DstReg | SrcMem | Mov | Sse, &pfx_0f_10_0f_11),
+       GP(ModRM | DstMem | SrcReg | Mov | Sse, &pfx_0f_10_0f_11),
+       N, N, N, N, N, N,
        D(ImplicitOps | ModRM | SrcMem | NoAccess),
        N, N, N, N, N, N, D(ImplicitOps | ModRM | SrcMem | NoAccess),
        /* 0x20 - 0x2F */