KVM: x86 emulator: implement movntps

Used to write to framebuffers (by at least Icaros).

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

diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index b160fb1fc68b5b9322f8a488c8923b8751860278..fb39e0b32ed173003dcdc0276337428fc482119d 100644 (file)
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -3440,6 +3440,10 @@ static struct gprefix pfx_0f_6f_0f_7f = {
        N, I(Sse | Aligned, em_mov), N, I(Sse | Unaligned, em_mov),
 };
 
+static struct gprefix pfx_vmovntpx = {
+       I(0, em_mov), N, N, N,
+};
+
 static struct opcode opcode_table[256] = {
        /* 0x00 - 0x07 */
        I6ALU(Lock, em_add),
@@ -3571,7 +3575,8 @@ static struct opcode twobyte_table[256] = {
        IIP(ModRM | SrcMem | Priv | Op3264, em_cr_write, cr_write, check_cr_write),
        IIP(ModRM | SrcMem | Priv | Op3264, em_dr_write, dr_write, check_dr_write),
        N, N, N, N,
-       N, N, N, N, N, N, N, N,
+       N, N, N, GP(ModRM | DstMem | SrcReg | Sse | Mov | Aligned, &pfx_vmovntpx),
+       N, N, N, N,
        /* 0x30 - 0x3F */
        II(ImplicitOps | Priv, em_wrmsr, wrmsr),
        IIP(ImplicitOps, em_rdtsc, rdtsc, check_rdtsc),