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KVM: arm64: Refactor __populate_fault_info()

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Refactor __populate_fault_info() to introduce __get_fault_info() which
will be used once the host is wrapped in a stage 2.

Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210319100146.1149909-25-qperret@google.com
This commit is contained in:
Quentin Perret 2021-03-19 10:01:32 +00:00 committed by Marc Zyngier
parent 6ec7e56d32
commit 159b859bee
1 changed files with 17 additions and 11 deletions
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28
arch/arm64/kvm/hyp/include/hyp/switch.h
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@ -160,18 +160,10 @@ static inline bool __translate_far_to_hpfar(u64 far, u64 *hpfar)
return true;
}
static inline bool __populate_fault_info(struct kvm_vcpu *vcpu)
static inline bool __get_fault_info(u64 esr, struct kvm_vcpu_fault_info *fault)
{
u8 ec;
u64 esr;
u64 hpfar, far;
esr = vcpu->arch.fault.esr_el2;
ec = ESR_ELx_EC(esr);
if (ec != ESR_ELx_EC_DABT_LOW && ec != ESR_ELx_EC_IABT_LOW)
return true;
far = read_sysreg_el2(SYS_FAR);
/*
@ -194,11 +186,25 @@ static inline bool __populate_fault_info(struct kvm_vcpu *vcpu)
hpfar = read_sysreg(hpfar_el2);
}
vcpu->arch.fault.far_el2 = far;
vcpu->arch.fault.hpfar_el2 = hpfar;
fault->far_el2 = far;
fault->hpfar_el2 = hpfar;
return true;
}
static inline bool __populate_fault_info(struct kvm_vcpu *vcpu)
{
u8 ec;
u64 esr;
esr = vcpu->arch.fault.esr_el2;
ec = ESR_ELx_EC(esr);
if (ec != ESR_ELx_EC_DABT_LOW && ec != ESR_ELx_EC_IABT_LOW)
return true;
return __get_fault_info(esr, &vcpu->arch.fault);
}
static inline void __hyp_sve_save_host(struct kvm_vcpu *vcpu)
{
struct thread_struct *thread;