diff options
| author | Jan Kiszka | 2008-12-15 13:52:10 +0100 |
|---|---|---|
| committer | Avi Kivity | 2009-03-24 10:02:50 +0100 |
| commit | ae675ef01cd86014acf8da5dee87876b71122495 (patch) | |
| tree | 7e386de9eb17d6c3fb264aef8505128e5daaf0d9 /arch/x86/kvm/vmx.c | |
| parent | KVM: x86: Virtualize debug registers (diff) | |
| download | kernel-qcow2-linux-ae675ef01cd86014acf8da5dee87876b71122495.tar.gz kernel-qcow2-linux-ae675ef01cd86014acf8da5dee87876b71122495.tar.xz kernel-qcow2-linux-ae675ef01cd86014acf8da5dee87876b71122495.zip | |
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/vmx.c')
| -rw-r--r-- | arch/x86/kvm/vmx.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 0989776ee7b0..cee81c9a6653 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -1017,6 +1017,11 @@ static int set_guest_debug(struct kvm_vcpu *vcpu, struct kvm_guest_debug *dbg) if (!(vcpu->guest_debug & KVM_GUESTDBG_ENABLE)) vcpu->guest_debug = 0; + if (vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP) + vmcs_writel(GUEST_DR7, dbg->arch.debugreg[7]); + else + vmcs_writel(GUEST_DR7, vcpu->arch.dr7); + flags = vmcs_readl(GUEST_RFLAGS); if (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP) flags |= X86_EFLAGS_TF | X86_EFLAGS_RF; |