KVM: x86 emulator: invd instruction

patch 651a3e29b3d19418d7a8a9787906061f9be7cc5f in mainline.

Emulate the 'invd' instruction (opcode 0f 08).

Signed-off-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/kvm/x86_emulate.c b/drivers/kvm/x86_emulate.c
index 08cd4a385c061cfa5dd3f843e1a7c64061839b17..14ad4b421c0ff82fb36c7412189067e595beca71 100644 (file)
--- a/drivers/kvm/x86_emulate.c
+++ b/drivers/kvm/x86_emulate.c
@@ -156,7 +156,7 @@ static u8 opcode_table[256] = {
 static u16 twobyte_table[256] = {
        /* 0x00 - 0x0F */
        0, SrcMem | ModRM | DstReg, 0, 0, 0, 0, ImplicitOps, 0,
-       0, ImplicitOps, 0, 0, 0, ImplicitOps | ModRM, 0, 0,
+       ImplicitOps, ImplicitOps, 0, 0, 0, ImplicitOps | ModRM, 0, 0,
        /* 0x10 - 0x1F */
        0, 0, 0, 0, 0, 0, 0, 0, ImplicitOps | ModRM, 0, 0, 0, 0, 0, 0, 0,
        /* 0x20 - 0x2F */
@@ -1353,6 +1353,8 @@ twobyte_special_insn:
        /* Disable writeback. */
        no_wb = 1;
        switch (b) {
+       case 0x08:              /* invd */
+               break;
        case 0x09:              /* wbinvd */
                break;
        case 0x0d:              /* GrpP (prefetch) */