Commit 329675dd authored by Maxim Levitsky's avatar Maxim Levitsky Committed by Paolo Bonzini
Browse files

KVM: x86: introduce kvm_register_clear_available 



Small refactoring that will be used in the next patch.

Signed-off-by: default avatarMaxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20210607090203.133058-7-mlevitsk@redhat.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 0f857223

arch/x86/kvm/kvm_cache_regs.h

+7 −0
Original line number Diff line number Diff line
@@ -55,6 +55,13 @@ static inline void kvm_register_mark_available(struct kvm_vcpu *vcpu, 
	__set_bit(reg, (unsigned long *)&vcpu->arch.regs_avail);

}



static inline void kvm_register_clear_available(struct kvm_vcpu *vcpu,

					       enum kvm_reg reg)

{

	__clear_bit(reg, (unsigned long *)&vcpu->arch.regs_avail);

	__clear_bit(reg, (unsigned long *)&vcpu->arch.regs_dirty);

}



static inline void kvm_register_mark_dirty(struct kvm_vcpu *vcpu,

					   enum kvm_reg reg)

{

arch/x86/kvm/svm/svm.c

+2 −4
Original line number Diff line number Diff line
@@ -3873,10 +3873,8 @@ static __no_kcsan fastpath_t svm_vcpu_run(struct kvm_vcpu *vcpu) 
		vcpu->arch.apf.host_apf_flags =

			kvm_read_and_reset_apf_flags();



	if (npt_enabled) {

		vcpu->arch.regs_avail &= ~(1 << VCPU_EXREG_PDPTR);

		vcpu->arch.regs_dirty &= ~(1 << VCPU_EXREG_PDPTR);

	}

	if (npt_enabled)

		kvm_register_clear_available(vcpu, VCPU_EXREG_PDPTR);



	/*

	 * We need to handle MC intercepts here before the vcpu has a chance to