Re: [PATCH 1/4] KVM: VMX: rename {vmx,nested_vmx}_vcpu_setup functions

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On 10/17/2019 2:09 AM, Krish Sadhukhan wrote:

On 10/15/19 6:27 PM, Xiaoyao Li wrote:
On 10/16/2019 6:05 AM, Krish Sadhukhan wrote:


On 10/15/2019 09:40 AM, Xiaoyao Li wrote:
Rename {vmx,nested_vmx}_vcpu_setup to {vmx,nested_vmx}_vmcs_setup,
to match what they really do.

No functional change.

Signed-off-by: Xiaoyao Li <xiaoyao.li@xxxxxxxxx>
---
  arch/x86/kvm/vmx/nested.c | 2 +-
  arch/x86/kvm/vmx/nested.h | 2 +-
  arch/x86/kvm/vmx/vmx.c    | 9 +++------
  3 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
index 5e231da00310..7935422d311f 100644
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -5768,7 +5768,7 @@ static int vmx_set_nested_state(struct kvm_vcpu *vcpu,
      return ret;
  }
-void nested_vmx_vcpu_setup(void)
+void nested_vmx_vmcs_setup(void)
  {
      if (enable_shadow_vmcs) {
          vmcs_write64(VMREAD_BITMAP, __pa(vmx_vmread_bitmap));
diff --git a/arch/x86/kvm/vmx/nested.h b/arch/x86/kvm/vmx/nested.h
index 187d39bf0bf1..2be1ba7482c9 100644
--- a/arch/x86/kvm/vmx/nested.h
+++ b/arch/x86/kvm/vmx/nested.h
@@ -11,7 +11,7 @@ void nested_vmx_setup_ctls_msrs(struct nested_vmx_msrs *msrs, u32 ept_caps,
                  bool apicv);
  void nested_vmx_hardware_unsetup(void);
  __init int nested_vmx_hardware_setup(int (*exit_handlers[])(struct kvm_vcpu *));
-void nested_vmx_vcpu_setup(void);
+void nested_vmx_vmcs_setup(void);
  void nested_vmx_free_vcpu(struct kvm_vcpu *vcpu);
  int nested_vmx_enter_non_root_mode(struct kvm_vcpu *vcpu, bool from_vmentry);   bool nested_vmx_exit_reflected(struct kvm_vcpu *vcpu, u32 exit_reason);
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index e660e28e9ae0..58b77a882426 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -4161,15 +4161,12 @@ static void ept_set_mmio_spte_mask(void)
  #define VMX_XSS_EXIT_BITMAP 0
-/*
- * Sets up the vmcs for emulated real mode.
- */
-static void vmx_vcpu_setup(struct vcpu_vmx *vmx)
+static void vmx_vmcs_setup(struct vcpu_vmx *vmx)
  {
      int i;
      if (nested)
-        nested_vmx_vcpu_setup();
+        nested_vmx_vmcs_setup();
      if (cpu_has_vmx_msr_bitmap())
          vmcs_write64(MSR_BITMAP, __pa(vmx->vmcs01.msr_bitmap));
@@ -6777,7 +6774,7 @@ static struct kvm_vcpu *vmx_create_vcpu(struct kvm *kvm, unsigned int id)
      cpu = get_cpu();
      vmx_vcpu_load(&vmx->vcpu, cpu);
      vmx->vcpu.cpu = cpu;
-    vmx_vcpu_setup(vmx);
+    vmx_vmcs_setup(vmx);
      vmx_vcpu_put(&vmx->vcpu);
      put_cpu();
      if (cpu_need_virtualize_apic_accesses(&vmx->vcpu)) {

May be we should rename vmx_vcpu_reset() to vmx_vmcs_reset()  as well  ?

Not really. vmx_vcpu_reset() not only resets vmcs but also the emulated field of vmx vcpu.

It would be a better organization of the code if the resetting of the VMCS fields were placed in a separate function.


OK, will do it in next version.

Reviewed-by: Krish Sadhukhan <krish.sadhukhan@xxxxxxxxxx>




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