KVM: SVM: consolidate nested_svm_exit_handled

When caching guest intercepts there is no need anymore for the
nested_svm_exit_handled_real function. So move its code into
nested_svm_exit_handled.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Acked-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>

1 files changed, 49 insertions, 60 deletions

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 4426c631057b..bdd73fd9a75c 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -1456,15 +1456,58 @@ static int nested_svm_do(struct vcpu_svm *svm,
         return retval;
 }
 
-static int nested_svm_exit_handled_real(struct vcpu_svm *svm,
-                                        void *arg1,
-                                        void *arg2,
-                                        void *opaque)
+static int nested_svm_exit_handled_msr(struct vcpu_svm *svm,
+                                       void *arg1, void *arg2,
+                                       void *opaque)
+{
+        struct vmcb *nested_vmcb = (struct vmcb *)arg1;
+        u8 *msrpm = (u8 *)arg2;
+        u32 t0, t1;
+        u32 msr = svm->vcpu.arch.regs[VCPU_REGS_RCX];
+        u32 param = svm->vmcb->control.exit_info_1 & 1;
+
+        if (!(nested_vmcb->control.intercept & (1ULL << INTERCEPT_MSR_PROT)))
+                return 0;
+
+        switch (msr) {
+        case 0 ... 0x1fff:
+                t0 = (msr * 2) % 8;
+                t1 = msr / 8;
+                break;
+        case 0xc0000000 ... 0xc0001fff:
+                t0 = (8192 + msr - 0xc0000000) * 2;
+                t1 = (t0 / 8);
+                t0 %= 8;
+                break;
+        case 0xc0010000 ... 0xc0011fff:
+                t0 = (16384 + msr - 0xc0010000) * 2;
+                t1 = (t0 / 8);
+                t0 %= 8;
+                break;
+        default:
+                return 1;
+                break;
+        }
+        if (msrpm[t1] & ((1 << param) << t0))
+                return 1;
+
+        return 0;
+}
+
+static int nested_svm_exit_handled(struct vcpu_svm *svm, bool kvm_override)
 {
-        bool kvm_overrides = *(bool *)opaque;
         u32 exit_code = svm->vmcb->control.exit_code;
 
-        if (kvm_overrides) {
+        switch (svm->vmcb->control.exit_code) {
+        case SVM_EXIT_MSR:
+                return nested_svm_do(svm, svm->nested.vmcb,
+                                     svm->nested.vmcb_msrpm, NULL,
+                                     nested_svm_exit_handled_msr);
+        default:
+                break;
+        }
+
+        if (kvm_override) {
                 switch (exit_code) {
                 case SVM_EXIT_INTR:
                 case SVM_EXIT_NMI:
@@ -1526,60 +1569,6 @@ static int nested_svm_exit_handled_real(struct vcpu_svm *svm,
         return 0;
 }
 
-static int nested_svm_exit_handled_msr(struct vcpu_svm *svm,
-                                       void *arg1, void *arg2,
-                                       void *opaque)
-{
-        struct vmcb *nested_vmcb = (struct vmcb *)arg1;
-        u8 *msrpm = (u8 *)arg2;
-        u32 t0, t1;
-        u32 msr = svm->vcpu.arch.regs[VCPU_REGS_RCX];
-        u32 param = svm->vmcb->control.exit_info_1 & 1;
-
-        if (!(nested_vmcb->control.intercept & (1ULL << INTERCEPT_MSR_PROT)))
-                return 0;
-
-        switch(msr) {
-        case 0 ... 0x1fff:
-                t0 = (msr * 2) % 8;
-                t1 = msr / 8;
-                break;
-        case 0xc0000000 ... 0xc0001fff:
-                t0 = (8192 + msr - 0xc0000000) * 2;
-                t1 = (t0 / 8);
-                t0 %= 8;
-                break;
-        case 0xc0010000 ... 0xc0011fff:
-                t0 = (16384 + msr - 0xc0010000) * 2;
-                t1 = (t0 / 8);
-                t0 %= 8;
-                break;
-        default:
-                return 1;
-                break;
-        }
-        if (msrpm[t1] & ((1 << param) << t0))
-                return 1;
-
-        return 0;
-}
-
-static int nested_svm_exit_handled(struct vcpu_svm *svm, bool kvm_override)
-{
-        bool k = kvm_override;
-
-        switch (svm->vmcb->control.exit_code) {
-        case SVM_EXIT_MSR:
-                return nested_svm_do(svm, svm->nested.vmcb,
-                                     svm->nested.vmcb_msrpm, NULL,
-                                     nested_svm_exit_handled_msr);
-        default: break;
-        }
-
-        return nested_svm_do(svm, svm->nested.vmcb, 0, &k,
-                             nested_svm_exit_handled_real);
-}
-
 static inline void copy_vmcb_control_area(struct vmcb *dst_vmcb, struct vmcb *from_vmcb)
 {
         struct vmcb_control_area *dst  = &dst_vmcb->control;