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KVM: Emulate hlt on real mode for Intel

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This has two use cases: the bios can't boot from disk, and guest smp
bootstrap.

Signed-off-by: Avi Kivity <avi@qumranet.com>
This commit is contained in:
Avi Kivity
2007-06-05 16:15:51 +03:00
parent d3bef15f84
commit 72d6e5a08a
3 changed files with 12 additions and 2 deletions
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6
drivers/kvm/x86_emulate.c
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@@ -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;