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KVM: arm64: Add kvm_has_s1poe() helper

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Just like we have kvm_has_s1pie(), add its S1POE counterpart,
making the code slightly more readable.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20241023145345.1613824-31-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
This commit is contained in:
Marc Zyngier
2024-10-23 15:53:38 +01:00
committed by Oliver Upton
parent f7575530df
commit 26e89dccdf
4 changed files with 8 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
arch/arm64/include/asm/kvm_host.h
View File

@@ -1525,4 +1525,7 @@ void kvm_set_vm_id_reg(struct kvm *kvm, u32 reg, u64 val);
#define kvm_has_s1pie(k) \
(kvm_has_feat((k), ID_AA64MMFR3_EL1, S1PIE, IMP))
#define kvm_has_s1poe(k) \
(kvm_has_feat((k), ID_AA64MMFR3_EL1, S1POE, IMP))
#endif /* __ARM64_KVM_HOST_H__ */

2
arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h
View File

@@ -80,7 +80,7 @@ static inline bool ctxt_has_s1poe(struct kvm_cpu_context *ctxt)
return false;
vcpu = ctxt_to_vcpu(ctxt);
return kvm_has_feat(kern_hyp_va(vcpu->kvm), ID_AA64MMFR3_EL1, S1POE, IMP);
return kvm_has_s1poe(kern_hyp_va(vcpu->kvm));
}
static inline void __sysreg_save_el1_state(struct kvm_cpu_context *ctxt)

4
arch/arm64/kvm/nested.c
View File

@@ -1107,7 +1107,7 @@ int kvm_init_nv_sysregs(struct kvm *kvm)
res0 |= HFGxTR_EL2_nRCWMASK_EL1;
if (!kvm_has_s1pie(kvm))
res0 |= (HFGxTR_EL2_nPIRE0_EL1 | HFGxTR_EL2_nPIR_EL1);
if (!kvm_has_feat(kvm, ID_AA64MMFR3_EL1, S1POE, IMP))
if (!kvm_has_s1poe(kvm))
res0 |= (HFGxTR_EL2_nPOR_EL0 | HFGxTR_EL2_nPOR_EL1);
if (!kvm_has_feat(kvm, ID_AA64MMFR3_EL1, S2POE, IMP))
res0 |= HFGxTR_EL2_nS2POR_EL1;
@@ -1217,7 +1217,7 @@ int kvm_init_nv_sysregs(struct kvm *kvm)
res0 |= TCR2_EL2_PTTWI | TCR2_EL2_PnCH;
if (!kvm_has_feat(kvm, ID_AA64MMFR3_EL1, AIE, IMP))
res0 |= TCR2_EL2_AIE;
if (!kvm_has_feat(kvm, ID_AA64MMFR3_EL1, S1POE, IMP))
if (!kvm_has_s1poe(kvm))
res0 |= TCR2_EL2_POE | TCR2_EL2_E0POE;
if (!kvm_has_s1pie(kvm))
res0 |= TCR2_EL2_PIE;

4
arch/arm64/kvm/sys_regs.c
View File

@@ -2323,7 +2323,7 @@ static bool access_zcr_el2(struct kvm_vcpu *vcpu,
static unsigned int s1poe_visibility(const struct kvm_vcpu *vcpu,
const struct sys_reg_desc *rd)
{
if (kvm_has_feat(vcpu->kvm, ID_AA64MMFR3_EL1, S1POE, IMP))
if (kvm_has_s1poe(vcpu->kvm))
return 0;
return REG_HIDDEN;
@@ -4862,7 +4862,7 @@ void kvm_calculate_traps(struct kvm_vcpu *vcpu)
kvm->arch.fgu[HFGxTR_GROUP] |= (HFGxTR_EL2_nPIRE0_EL1 |
HFGxTR_EL2_nPIR_EL1);
if (!kvm_has_feat(kvm, ID_AA64MMFR3_EL1, S1POE, IMP))
if (!kvm_has_s1poe(kvm))
kvm->arch.fgu[HFGxTR_GROUP] |= (HFGxTR_EL2_nPOR_EL1 |
HFGxTR_EL2_nPOR_EL0);