From: Nitin A Kamble <[email protected]>
Signed-off-by: Nitin A Kamble <[email protected]>
Signed-off-by: Avi Kivity <[email protected]>
---
drivers/kvm/x86_emulate.c | 16 +++++++++++++++-
1 files changed, 15 insertions(+), 1 deletions(-)
diff --git a/drivers/kvm/x86_emulate.c b/drivers/kvm/x86_emulate.c
index 1036e02..cf895aa 100644
--- a/drivers/kvm/x86_emulate.c
+++ b/drivers/kvm/x86_emulate.c
@@ -99,7 +99,8 @@ static u8 opcode_table[256] = {
/* 0x40 - 0x4F */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x50 - 0x57 */
- 0, 0, 0, 0, 0, 0, 0, 0,
+ ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps,
+ ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps,
/* 0x58 - 0x5F */
ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps,
ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps,
@@ -1151,6 +1152,19 @@ special_insn:
if (twobyte)
goto twobyte_special_insn;
switch(b) {
+ case 0x50 ... 0x57: /* push reg */
+ if (op_bytes == 2)
+ src.val = (u16) _regs[b & 0x7];
+ else
+ src.val = (u32) _regs[b & 0x7];
+ dst.type = OP_MEM;
+ dst.bytes = op_bytes;
+ dst.val = src.val;
+ register_address_increment(_regs[VCPU_REGS_RSP], -op_bytes);
+ dst.ptr = (void *) register_address(
+ ctxt->ss_base, _regs[VCPU_REGS_RSP]);
+ no_wb = 1; /* force writeback */
+ break;
case 0x6c: /* insb */
case 0x6d: /* insw/insd */
if (kvm_emulate_pio_string(ctxt->vcpu, NULL,
--
1.5.3
-
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