KVM: VMX: Use kvm_mmu_page_fault() handle EPT violation mmio

Removed duplicated code.

Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

1 files changed, 1 insertions, 29 deletions

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 509b35305402..cb27ffccf466 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -3058,11 +3058,8 @@ static int handle_task_switch(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 static int handle_ept_violation(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 {
         u64 exit_qualification;
-        enum emulation_result er;
         gpa_t gpa;
-        unsigned long hva;
         int gla_validity;
-        int r;
 
         exit_qualification = vmcs_read64(EXIT_QUALIFICATION);
 
@@ -3085,32 +3082,7 @@ static int handle_ept_violation(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
         }
 
         gpa = vmcs_read64(GUEST_PHYSICAL_ADDRESS);
-        hva = gfn_to_hva(vcpu->kvm, gpa >> PAGE_SHIFT);
-        if (!kvm_is_error_hva(hva)) {
-                r = kvm_mmu_page_fault(vcpu, gpa & PAGE_MASK, 0);
-                if (r < 0) {
-                        printk(KERN_ERR "EPT: Not enough memory!\n");
-                        return -ENOMEM;
-                }
-                return 1;
-        } else {
-                /* must be MMIO */
-                er = emulate_instruction(vcpu, kvm_run, 0, 0, 0);
-
-                if (er == EMULATE_FAIL) {
-                        printk(KERN_ERR
-                         "EPT: Fail to handle EPT violation vmexit!er is %d\n",
-                         er);
-                        printk(KERN_ERR "EPT: GPA: 0x%lx, GVA: 0x%lx\n",
-                         (long unsigned int)vmcs_read64(GUEST_PHYSICAL_ADDRESS),
-                         (long unsigned int)vmcs_read64(GUEST_LINEAR_ADDRESS));
-                        printk(KERN_ERR "EPT: Exit qualification is 0x%lx\n",
-                                (long unsigned int)exit_qualification);
-                        return -ENOTSUPP;
-                } else if (er == EMULATE_DO_MMIO)
-                        return 0;
-        }
-        return 1;
+        return kvm_mmu_page_fault(vcpu, gpa & PAGE_MASK, 0);
 }
 
 static int handle_nmi_window(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)