diff options
Diffstat (limited to 'drivers/kvm')
| -rw-r--r-- | drivers/kvm/vmx.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c index 0198d400037..ca79e594ea6 100644 --- a/drivers/kvm/vmx.c +++ b/drivers/kvm/vmx.c @@ -1657,6 +1657,20 @@ static int handle_halt(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) return 0; } +static int handle_vmcall(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) +{ + kvm_run->exit_reason = KVM_EXIT_DEBUG; + printk(KERN_DEBUG "got vmcall at RIP %08lx\n", vmcs_readl(GUEST_RIP)); + printk(KERN_DEBUG "vmcall params: %08lx, %08lx, %08lx, %08lx\n", + vcpu->regs[VCPU_REGS_RAX], + vcpu->regs[VCPU_REGS_RCX], + vcpu->regs[VCPU_REGS_RDX], + vcpu->regs[VCPU_REGS_RBP]); + vcpu->regs[VCPU_REGS_RAX] = 0; + vmcs_writel(GUEST_RIP, vmcs_readl(GUEST_RIP)+3); + return 1; +} + /* * The exit handlers return 1 if the exit was handled fully and guest execution * may resume. Otherwise they set the kvm_run parameter to indicate what needs @@ -1675,6 +1689,7 @@ static int (*kvm_vmx_exit_handlers[])(struct kvm_vcpu *vcpu, [EXIT_REASON_MSR_WRITE] = handle_wrmsr, [EXIT_REASON_PENDING_INTERRUPT] = handle_interrupt_window, [EXIT_REASON_HLT] = handle_halt, + [EXIT_REASON_VMCALL] = handle_vmcall, }; static const int kvm_vmx_max_exit_handlers = |