[PATCH v2 25/66] KVM: x86: Use u32 for holding CPUID register value in helpers

Sean Christopherson
2020-03-02T23:59:40Z

Change the intermediate CPUID output register values from "int" to "u32"
to match both hardware and the storage type in struct cpuid_reg.

No functional change intended.

Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
---
arch/x86/kvm/cpuid.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kvm/cpuid.h b/arch/x86/kvm/cpuid.h
index c1ac0995843d..72a79bdfed6b 100644
--- a/arch/x86/kvm/cpuid.h
+++ b/arch/x86/kvm/cpuid.h
@@ -95,7 +95,7 @@ static __always_inline struct cpuid_reg x86_feature_cpuid(unsigned x86_feature)
return reverse_cpuid[x86_leaf];
}

-static __always_inline int *guest_cpuid_get_register(struct kvm_vcpu *vcpu, unsigned x86_feature)
+static __always_inline u32 *guest_cpuid_get_register(struct kvm_vcpu *vcpu, unsigned x86_feature)
{
struct kvm_cpuid_entry2 *entry;
const struct cpuid_reg cpuid = x86_feature_cpuid(x86_feature);
@@ -121,7 +121,7 @@ static __always_inline int *guest_cpuid_get_register(struct kvm_vcpu *vcpu, unsi

static __always_inline bool guest_cpuid_has(struct kvm_vcpu *vcpu, unsigned x86_feature)
{
- int *reg;
+ u32 *reg;

reg = guest_cpuid_get_register(vcpu, x86_feature);
if (!reg)
@@ -132,7 +132,7 @@ static __always_inline bool guest_cpuid_has(struct kvm_vcpu *vcpu, unsigned x86_

static __always_inline void guest_cpuid_clear(struct kvm_vcpu *vcpu, unsigned x86_feature)
{
- int *reg;
+ u32 *reg;

reg = guest_cpuid_get_register(vcpu, x86_feature);
if (reg)
--
2.24.1