Commit c57d9baf authored by Paolo Bonzini's avatar Paolo Bonzini Committed by Sean Christopherson
Browse files

KVM: x86: Add support for emulating MOVNTDQA 



MOVNTDQA is a simple MOV instruction, in fact it has the same
characteristics as 0F E7 (MOVNTDQ) other than the aligned-address
requirement.

Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
Link: https://patch.msgid.link/20251114003633.60689-2-pbonzini@redhat.com


Signed-off-by: default avatarSean Christopherson <seanjc@google.com>
parent 0b28f21a

arch/x86/kvm/emulate.c

+9 −4
Original line number Diff line number Diff line
@@ -4133,7 +4133,7 @@ static const struct gprefix pfx_0f_28_0f_29 = { 
	I(Aligned, em_mov), I(Aligned, em_mov), N, N,

};



static const struct gprefix pfx_0f_e7 = {

static const struct gprefix pfx_0f_e7_0f_38_2a = {

	N, I(Sse, em_mov), N, N,

};
@@ -4431,7 +4431,7 @@ static const struct opcode twobyte_table[256] = { 
	/* 0xD0 - 0xDF */

	N, N, N, N, N, N, N, N, N, N, N, N, N, N, N, N,

	/* 0xE0 - 0xEF */

	N, N, N, N, N, N, N, GP(SrcReg | DstMem | ModRM | Mov, &pfx_0f_e7),

	N, N, N, N, N, N, N, GP(SrcReg | DstMem | ModRM | Mov, &pfx_0f_e7_0f_38_2a),

	N, N, N, N, N, N, N, N,

	/* 0xF0 - 0xFF */

	N, N, N, N, N, N, N, N, N, N, N, N, N, N, N, N
@@ -4458,8 +4458,13 @@ static const struct gprefix three_byte_0f_38_f1 = { 
 * byte.

 */

static const struct opcode opcode_map_0f_38[256] = {

	/* 0x00 - 0x7f */

	X16(N), X16(N), X16(N), X16(N), X16(N), X16(N), X16(N), X16(N),

	/* 0x00 - 0x1f */

	X16(N), X16(N),

	/* 0x20 - 0x2f */

	X8(N),

	X2(N), GP(SrcReg | DstMem | ModRM | Mov | Aligned, &pfx_0f_e7_0f_38_2a), N, N, N, N, N,

	/* 0x30 - 0x7f */

	X16(N), X16(N), X16(N), X16(N), X16(N),

	/* 0x80 - 0xef */

	X16(N), X16(N), X16(N), X16(N), X16(N), X16(N), X16(N),

	/* 0xf0 - 0xf1 */