UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

KVM: x86: Do not push eflags.vm on pushf 

The pushf instruction does not push eflags.VM, so emulation should not do so as
well.  Although eflags.RF should not be pushed as well, it is already cleared
by the time pushf is executed.

Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Nadav Amit 2014-12-10 11:19:03 +02:00 committed by Paolo Bonzini
parent 53bb4f789a
commit bc397a6c91
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/x86/kvm/emulate.c
View File

@ -1861,7 +1861,7 @@ static int em_pusha(struct x86_emulate_ctxt *ctxt)
static int em_pushf(struct x86_emulate_ctxt *ctxt)
{
ctxt->src.val = (unsigned long)ctxt->eflags;
ctxt->src.val = (unsigned long)ctxt->eflags & ~EFLG_VM;
return em_push(ctxt);
}