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authorAvi Kivity <avi@qumranet.com>2007-06-05 16:15:51 +0300
committerAvi Kivity <avi@qumranet.com>2007-07-16 12:05:46 +0300
commit72d6e5a08a8ba2105b3f36e32285e8fbfbed1f71 (patch)
tree6d20932e350683760d79f2c6cca6ef3bfafbce96 /drivers/kvm/x86_emulate.c
parentd3bef15f84f91c73a5515ad4c6a1749f8f63afcf (diff)
KVM: Emulate hlt on real mode for Intel
This has two use cases: the bios can't boot from disk, and guest smp bootstrap. Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'drivers/kvm/x86_emulate.c')
-rw-r--r--drivers/kvm/x86_emulate.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/kvm/x86_emulate.c b/drivers/kvm/x86_emulate.c
index 6123c0292b22..a4a84817b274 100644
--- a/drivers/kvm/x86_emulate.c
+++ b/drivers/kvm/x86_emulate.c
@@ -143,7 +143,8 @@ static u8 opcode_table[256] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
/* 0xF0 - 0xF7 */
0, 0, 0, 0,
- 0, 0, ByteOp | DstMem | SrcNone | ModRM, DstMem | SrcNone | ModRM,
+ ImplicitOps, 0,
+ ByteOp | DstMem | SrcNone | ModRM, DstMem | SrcNone | ModRM,
/* 0xF8 - 0xFF */
0, 0, 0, 0,
0, 0, ByteOp | DstMem | SrcNone | ModRM, DstMem | SrcNone | ModRM
@@ -1149,6 +1150,9 @@ special_insn:
case 0xae ... 0xaf: /* scas */
DPRINTF("Urk! I don't handle SCAS.\n");
goto cannot_emulate;
+ case 0xf4: /* hlt */
+ ctxt->vcpu->halt_request = 1;
+ goto done;
}
goto writeback;