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| author | Jan Kiszka <jan.kiszka@siemens.com> | 2008-12-15 12:52:10 (GMT) |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2009-03-24 09:02:50 (GMT) |
| commit | ae675ef01cd86014acf8da5dee87876b71122495 (patch) | |
| tree | 7e386de9eb17d6c3fb264aef8505128e5daaf0d9 /arch/x86/kvm/svm.c | |
| parent | 42dbaa5a057736bf8b5c22aa42dbe975bf1080e5 (diff) | |
| download | linux-fsl-qoriq-ae675ef01cd86014acf8da5dee87876b71122495.tar.xz | |
KVM: x86: Wire-up hardware breakpoints for guest debugging
Add the remaining bits to make use of debug registers also for guest
debugging, thus enabling the use of hardware breakpoints and
watchpoints.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm/svm.c')
| -rw-r--r-- | arch/x86/kvm/svm.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 815f50e..b3a7a31 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -958,6 +958,11 @@ static int svm_guest_debug(struct kvm_vcpu *vcpu, struct kvm_guest_debug *dbg) } else vcpu->guest_debug = 0; + if (vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP) + svm->vmcb->save.dr7 = dbg->arch.debugreg[7]; + else + svm->vmcb->save.dr7 = vcpu->arch.dr7; + if (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP) svm->vmcb->save.rflags |= X86_EFLAGS_TF | X86_EFLAGS_RF; else if (old_debug & KVM_GUESTDBG_SINGLESTEP) |