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| author | Kyle Huey <me@kylehuey.com> | 2016-11-29 12:40:41 -0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2016-12-08 15:31:06 +0100 |
| commit | ea07e42dec5644105db8a853575a0a271f93d294 (patch) | |
| tree | 9985a9e1aecb7a127256ece8a4ba1d2d65217e18 /arch/x86/kvm | |
| parent | 6affcbedcac79b01c8d01948a693461040133e46 (diff) | |
| download | linux-ea07e42dec5644105db8a853575a0a271f93d294.tar.bz2 | |
KVM: x86: Do not clear RFLAGS.TF when a singlestep trap occurs.
The trap flag stays set until software clears it.
Signed-off-by: Kyle Huey <khuey@kylehuey.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Diffstat (limited to 'arch/x86/kvm')
| -rw-r--r-- | arch/x86/kvm/x86.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 7b38c5e6f412..dd6b41ea61b6 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -5419,7 +5419,6 @@ static void kvm_vcpu_check_singlestep(struct kvm_vcpu *vcpu, unsigned long rflag kvm_run->exit_reason = KVM_EXIT_DEBUG; *r = EMULATE_USER_EXIT; } else { - vcpu->arch.emulate_ctxt.eflags &= ~X86_EFLAGS_TF; /* * "Certain debug exceptions may clear bit 0-3. The * remaining contents of the DR6 register are never |