KVM: x86: Remove redundant vcpu->arch.cr0 assignments

Drop the vcpu->arch.cr0 assignment after static_call(kvm_x86_set_cr0).
CR0 was already set by {vmx,svm}_set_cr0().

Signed-off-by: Michal Luczaj <mhal@rbox.co>
Link: https://lore.kernel.org/r/20230814222358.707877-2-mhal@rbox.co
Signed-off-by: Sean Christopherson <seanjc@google.com>

Author: mmhal

arch/x86/kvm/smm.c

@@ -324,7 +324,6 @@ void enter_smm(struct kvm_vcpu *vcpu)
 
 	cr0 = vcpu->arch.cr0 & ~(X86_CR0_PE | X86_CR0_EM | X86_CR0_TS | X86_CR0_PG);
 	static_call(kvm_x86_set_cr0)(vcpu, cr0);
-	vcpu->arch.cr0 = cr0;
 
 	static_call(kvm_x86_set_cr4)(vcpu, 0);
 

arch/x86/kvm/x86.c

@@ -11521,7 +11521,6 @@ static int __set_sregs_common(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs,
 
 	*mmu_reset_needed |= kvm_read_cr0(vcpu) != sregs->cr0;
 	static_call(kvm_x86_set_cr0)(vcpu, sregs->cr0);
-	vcpu->arch.cr0 = sregs->cr0;
 
 	*mmu_reset_needed |= kvm_read_cr4(vcpu) != sregs->cr4;
 	static_call(kvm_x86_set_cr4)(vcpu, sregs->cr4);