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authorJoerg Roedel <joerg.roedel@amd.com>2009-08-07 11:49:41 +0200
committerAvi Kivity <avi@redhat.com>2009-09-10 10:46:29 +0300
commit9738b2c97d19d87e5c204ae8c3f715a546bb6773 (patch)
tree5004ae3445e5d991d9b4faa60b4a56b217d22573 /arch/x86
parent9966bf6872598362b632b738213edfb5a961315d (diff)
KVM: SVM: clean up nested vmrun path
This patch removes the usage of nested_svm_do from the vmrun emulation path. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/kvm/svm.c34
1 files changed, 22 insertions, 12 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 78c0463ccdd..68b6d4cdd15 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -1724,25 +1724,35 @@ static int nested_svm_vmexit(struct vcpu_svm *svm)
return 0;
}
-static int nested_svm_vmrun_msrpm(struct vcpu_svm *svm, void *arg1,
- void *arg2, void *opaque)
+static bool nested_svm_vmrun_msrpm(struct vcpu_svm *svm)
{
+ u32 *nested_msrpm;
int i;
- u32 *nested_msrpm = (u32*)arg1;
+
+ nested_msrpm = nested_svm_map(svm, svm->nested.vmcb_msrpm, KM_USER0);
+ if (!nested_msrpm)
+ return false;
+
for (i=0; i< PAGE_SIZE * (1 << MSRPM_ALLOC_ORDER) / 4; i++)
svm->nested.msrpm[i] = svm->msrpm[i] | nested_msrpm[i];
+
svm->vmcb->control.msrpm_base_pa = __pa(svm->nested.msrpm);
- return 0;
+ nested_svm_unmap(nested_msrpm, KM_USER0);
+
+ return true;
}
-static int nested_svm_vmrun(struct vcpu_svm *svm, void *arg1,
- void *arg2, void *opaque)
+static bool nested_svm_vmrun(struct vcpu_svm *svm)
{
- struct vmcb *nested_vmcb = (struct vmcb *)arg1;
+ struct vmcb *nested_vmcb;
struct vmcb *hsave = svm->nested.hsave;
struct vmcb *vmcb = svm->vmcb;
+ nested_vmcb = nested_svm_map(svm, svm->vmcb->save.rax, KM_USER0);
+ if (!nested_vmcb)
+ return false;
+
/* nested_vmcb is our indicator if nested SVM is activated */
svm->nested.vmcb = svm->vmcb->save.rax;
@@ -1858,9 +1868,11 @@ static int nested_svm_vmrun(struct vcpu_svm *svm, void *arg1,
svm->vmcb->control.event_inj = nested_vmcb->control.event_inj;
svm->vmcb->control.event_inj_err = nested_vmcb->control.event_inj_err;
+ nested_svm_unmap(nested_vmcb, KM_USER0);
+
enable_gif(svm);
- return 0;
+ return true;
}
static void nested_svm_vmloadsave(struct vmcb *from_vmcb, struct vmcb *to_vmcb)
@@ -1928,12 +1940,10 @@ static int vmrun_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
svm->next_rip = kvm_rip_read(&svm->vcpu) + 3;
skip_emulated_instruction(&svm->vcpu);
- if (nested_svm_do(svm, svm->vmcb->save.rax, 0,
- NULL, nested_svm_vmrun))
+ if (!nested_svm_vmrun(svm))
return 1;
- if (nested_svm_do(svm, svm->nested.vmcb_msrpm, 0,
- NULL, nested_svm_vmrun_msrpm))
+ if (!nested_svm_vmrun_msrpm(svm))
return 1;
return 1;