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authorIngo Molnar <mingo@elte.hu>2007-02-19 14:37:47 +0200
committerAvi Kivity <avi@qumranet.com>2007-03-04 11:12:40 +0200
commitc21415e84334af679630f6450ceb8929a5234fad (patch)
tree6f9ce30c9fd97a3fc94e79e1450fda86f612b56e /drivers/kvm
parent102d8325a1d2f266d3d0a03fdde948544e72c12d (diff)
KVM: Add host hypercall support for vmx
Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'drivers/kvm')
-rw-r--r--drivers/kvm/vmx.c15
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 =