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| author | Jan Kiszka <jan.kiszka@web.de> | 2009-10-03 00:31:21 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2009-12-03 09:32:14 +0200 |
| commit | 355be0b9300579e02275d7d19374806a974ce622 (patch) | |
| tree | faa52bac7a0d1d83c7a0a8f1bec01088b77a68fb /arch/x86/kvm/vmx.c | |
| parent | 201d945bcfb0d53e67c9c081f7c28532eb4669c7 (diff) | |
| download | blackbird-op-linux-355be0b9300579e02275d7d19374806a974ce622.tar.gz blackbird-op-linux-355be0b9300579e02275d7d19374806a974ce622.zip | |
KVM: x86: Refactor guest debug IOCTL handling
Much of so far vendor-specific code for setting up guest debug can
actually be handled by the generic code. This also fixes a minor deficit
in the SVM part /wrt processing KVM_GUESTDBG_ENABLE.
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 | 18 |
1 files changed, 1 insertions, 17 deletions
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 97f4265cda38..70020e505c22 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -1096,30 +1096,14 @@ static void vmx_cache_reg(struct kvm_vcpu *vcpu, enum kvm_reg reg) } } -static int set_guest_debug(struct kvm_vcpu *vcpu, struct kvm_guest_debug *dbg) +static void set_guest_debug(struct kvm_vcpu *vcpu, struct kvm_guest_debug *dbg) { - int old_debug = vcpu->guest_debug; - unsigned long flags; - - vcpu->guest_debug = dbg->control; - 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; - else if (old_debug & KVM_GUESTDBG_SINGLESTEP) - flags &= ~(X86_EFLAGS_TF | X86_EFLAGS_RF); - vmcs_writel(GUEST_RFLAGS, flags); - update_exception_bitmap(vcpu); - - return 0; } static __init int cpu_has_kvm_support(void) |
