Commit 329675dd authored Jun 07, 2021 by Maxim Levitsky Committed by Paolo Bonzini Jun 17, 2021

KVM: x86: introduce kvm_register_clear_available



Small refactoring that will be used in the next patch.

Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20210607090203.133058-7-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

parent 0f857223

arch/x86/kvm/kvm_cache_regs.h

+7 −0

Original line number	Original line	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);		__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,		static inline void kvm_register_mark_dirty(struct kvm_vcpu *vcpu,
	enum kvm_reg reg)		enum kvm_reg reg)
	{		{

arch/x86/kvm/svm/svm.c

+2 −4

Original line number	Original line	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 =		vcpu->arch.apf.host_apf_flags =
	kvm_read_and_reset_apf_flags();		kvm_read_and_reset_apf_flags();

	if (npt_enabled) {		if (npt_enabled)
	vcpu->arch.regs_avail &= ~(1 << VCPU_EXREG_PDPTR);		kvm_register_clear_available(vcpu, VCPU_EXREG_PDPTR);
	vcpu->arch.regs_dirty &= ~(1 << VCPU_EXREG_PDPTR);
	}

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