diff options
| author | Wei Yongjun <yjwei@cn.fujitsu.com> | 2010-08-19 14:25:48 +0800 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2010-10-24 10:51:20 +0200 |
| commit | e4abac67b756680c63af369f053d11991616aeb4 (patch) | |
| tree | 3d73918a19b39995ec5adc1fb51c1e419ddf84c5 /arch/x86/kvm | |
| parent | 09b5f4d3c4aa2d4928c0a3723a8de26a76b6339e (diff) | |
KVM: x86 emulator: add JrCXZ instruction emulation
Add JrCXZ instruction emulation (opcode 0xe3)
Used by FreeBSD boot loader.
Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'arch/x86/kvm')
| -rw-r--r-- | arch/x86/kvm/emulate.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index aece501edce4..312e798d5425 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -2487,7 +2487,7 @@ static struct opcode opcode_table[256] = { /* 0xD8 - 0xDF */ N, N, N, N, N, N, N, N, /* 0xE0 - 0xE7 */ - X3(D(SrcImmByte)), N, + X4(D(SrcImmByte)), D(ByteOp | SrcImmUByte | DstAcc), D(SrcImmUByte | DstAcc), D(ByteOp | SrcAcc | DstImmUByte), D(SrcAcc | DstImmUByte), /* 0xE8 - 0xEF */ @@ -3285,6 +3285,10 @@ special_insn: (c->b == 0xe2 || test_cc(c->b ^ 0x5, ctxt->eflags))) jmp_rel(c, c->src.val); break; + case 0xe3: /* jcxz/jecxz/jrcxz */ + if (address_mask(c, c->regs[VCPU_REGS_RCX]) == 0) + jmp_rel(c, c->src.val); + break; case 0xe4: /* inb */ case 0xe5: /* in */ goto do_io_in; |