Commit bfb78b5c authored by Marc Zyngier's avatar Marc Zyngier Committed by Christoffer Dall
Browse files

arm: KVM: Add Virtual Abort injection helper 



Now that we're able to context switch the HCR.VA bit, let's
introduce a helper that injects an Abort into a vcpu.

Signed-off-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
Signed-off-by: default avatarChristoffer Dall <christoffer.dall@linaro.org>
parent 1f7e378d

arch/arm/include/asm/kvm_emulate.h

+1 −0
Original line number Diff line number Diff line
@@ -43,6 +43,7 @@ static inline void vcpu_set_reg(struct kvm_vcpu *vcpu, u8 reg_num, 
bool kvm_condition_valid32(const struct kvm_vcpu *vcpu);

void kvm_skip_instr32(struct kvm_vcpu *vcpu, bool is_wide_instr);

void kvm_inject_undefined(struct kvm_vcpu *vcpu);

void kvm_inject_vabt(struct kvm_vcpu *vcpu);

void kvm_inject_dabt(struct kvm_vcpu *vcpu, unsigned long addr);

void kvm_inject_pabt(struct kvm_vcpu *vcpu, unsigned long addr);

arch/arm/kvm/emulate.c

+12 −0
Original line number Diff line number Diff line
@@ -303,3 +303,15 @@ void kvm_inject_pabt(struct kvm_vcpu *vcpu, unsigned long addr) 
{

	inject_abt(vcpu, true, addr);

}



/**

 * kvm_inject_vabt - inject an async abort / SError into the guest

 * @vcpu: The VCPU to receive the exception

 *

 * It is assumed that this code is called from the VCPU thread and that the

 * VCPU therefore is not currently executing guest code.

 */

void kvm_inject_vabt(struct kvm_vcpu *vcpu)

{

	vcpu_set_hcr(vcpu, vcpu_get_hcr(vcpu) | HCR_VA);

}