iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

KVM: x86 emulator: cleanup xchg emulation

Browse Source 
Dst operand is already initialized during decoding stage. No need to
reinitialize.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Gleb Natapov 2010-04-28 19:15:24 +03:00 committed by Avi Kivity
parent 054fe9f6e3
commit f0c13ef1a8
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/x86/kvm/emulate.c
View File

@ -2804,8 +2804,8 @@ special_insn:
break; break;
} }
case 0x91 ... 0x97: /* xchg reg,rax */ case 0x91 ... 0x97: /* xchg reg,rax */
c->src.type = c->dst.type = OP_REG; c->src.type = OP_REG;
c->src.bytes = c->dst.bytes = c->op_bytes; c->src.bytes = c->op_bytes;
c->src.ptr = (unsigned long *) &c->regs[VCPU_REGS_RAX]; c->src.ptr = (unsigned long *) &c->regs[VCPU_REGS_RAX];
c->src.val = *(c->src.ptr); c->src.val = *(c->src.ptr);
goto xchg; goto xchg;