From: Oliver Upton <oliver.upton@linux.dev>
To: kvmarm@lists.linux.dev
Cc: Marc Zyngier <maz@kernel.org>, Joey Gouly <joey.gouly@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Zenghui Yu <yuzenghui@huawei.com>,
Anshuman Khandual <anshuman.khandual@arm.com>,
Oliver Upton <oliver.upton@linux.dev>
Subject: [PATCH v3 06/17] KVM: arm64: nv: Rename BEHAVE_FORWARD_ANY
Date: Mon, 7 Oct 2024 17:45:48 +0000 [thread overview]
Message-ID: <20241007174559.1830205-7-oliver.upton@linux.dev> (raw)
In-Reply-To: <20241007174559.1830205-1-oliver.upton@linux.dev>
BEHAVE_FORWARD_ANY is slightly ambiguous, especially since we're about
to cram some more information into the enum. Rephrase it.
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
---
arch/arm64/kvm/emulate-nested.c | 93 +++++++++++++++++----------------
1 file changed, 47 insertions(+), 46 deletions(-)
diff --git a/arch/arm64/kvm/emulate-nested.c b/arch/arm64/kvm/emulate-nested.c
index da7ab14e036d..e1a30d1bcd06 100644
--- a/arch/arm64/kvm/emulate-nested.c
+++ b/arch/arm64/kvm/emulate-nested.c
@@ -16,9 +16,10 @@
enum trap_behaviour {
BEHAVE_HANDLE_LOCALLY = 0,
+
BEHAVE_FORWARD_READ = BIT(0),
BEHAVE_FORWARD_WRITE = BIT(1),
- BEHAVE_FORWARD_ANY = BEHAVE_FORWARD_READ | BEHAVE_FORWARD_WRITE,
+ BEHAVE_FORWARD_RW = BEHAVE_FORWARD_READ | BEHAVE_FORWARD_WRITE,
};
struct trap_bits {
@@ -138,7 +139,7 @@ static const struct trap_bits coarse_trap_bits[] = {
.index = HCR_EL2,
.value = HCR_TID2,
.mask = HCR_TID2,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_HCR_TID3] = {
.index = HCR_EL2,
@@ -162,37 +163,37 @@ static const struct trap_bits coarse_trap_bits[] = {
.index = HCR_EL2,
.value = HCR_TIDCP,
.mask = HCR_TIDCP,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_HCR_TACR] = {
.index = HCR_EL2,
.value = HCR_TACR,
.mask = HCR_TACR,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_HCR_TSW] = {
.index = HCR_EL2,
.value = HCR_TSW,
.mask = HCR_TSW,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_HCR_TPC] = { /* Also called TCPC when FEAT_DPB is implemented */
.index = HCR_EL2,
.value = HCR_TPC,
.mask = HCR_TPC,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_HCR_TPU] = {
.index = HCR_EL2,
.value = HCR_TPU,
.mask = HCR_TPU,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_HCR_TTLB] = {
.index = HCR_EL2,
.value = HCR_TTLB,
.mask = HCR_TTLB,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_HCR_TVM] = {
.index = HCR_EL2,
@@ -204,7 +205,7 @@ static const struct trap_bits coarse_trap_bits[] = {
.index = HCR_EL2,
.value = HCR_TDZ,
.mask = HCR_TDZ,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_HCR_TRVM] = {
.index = HCR_EL2,
@@ -216,205 +217,205 @@ static const struct trap_bits coarse_trap_bits[] = {
.index = HCR_EL2,
.value = HCR_TLOR,
.mask = HCR_TLOR,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_HCR_TERR] = {
.index = HCR_EL2,
.value = HCR_TERR,
.mask = HCR_TERR,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_HCR_APK] = {
.index = HCR_EL2,
.value = 0,
.mask = HCR_APK,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_HCR_NV] = {
.index = HCR_EL2,
.value = HCR_NV,
.mask = HCR_NV,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_HCR_NV_nNV2] = {
.index = HCR_EL2,
.value = HCR_NV,
.mask = HCR_NV | HCR_NV2,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_HCR_NV1_nNV2] = {
.index = HCR_EL2,
.value = HCR_NV | HCR_NV1,
.mask = HCR_NV | HCR_NV1 | HCR_NV2,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_HCR_AT] = {
.index = HCR_EL2,
.value = HCR_AT,
.mask = HCR_AT,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_HCR_nFIEN] = {
.index = HCR_EL2,
.value = 0,
.mask = HCR_FIEN,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_HCR_TID4] = {
.index = HCR_EL2,
.value = HCR_TID4,
.mask = HCR_TID4,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_HCR_TICAB] = {
.index = HCR_EL2,
.value = HCR_TICAB,
.mask = HCR_TICAB,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_HCR_TOCU] = {
.index = HCR_EL2,
.value = HCR_TOCU,
.mask = HCR_TOCU,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_HCR_ENSCXT] = {
.index = HCR_EL2,
.value = 0,
.mask = HCR_ENSCXT,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_HCR_TTLBIS] = {
.index = HCR_EL2,
.value = HCR_TTLBIS,
.mask = HCR_TTLBIS,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_HCR_TTLBOS] = {
.index = HCR_EL2,
.value = HCR_TTLBOS,
.mask = HCR_TTLBOS,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_MDCR_TPMCR] = {
.index = MDCR_EL2,
.value = MDCR_EL2_TPMCR,
.mask = MDCR_EL2_TPMCR,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_MDCR_TPM] = {
.index = MDCR_EL2,
.value = MDCR_EL2_TPM,
.mask = MDCR_EL2_TPM,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_MDCR_TDE] = {
.index = MDCR_EL2,
.value = MDCR_EL2_TDE,
.mask = MDCR_EL2_TDE,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_MDCR_TDA] = {
.index = MDCR_EL2,
.value = MDCR_EL2_TDA,
.mask = MDCR_EL2_TDA,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_MDCR_TDOSA] = {
.index = MDCR_EL2,
.value = MDCR_EL2_TDOSA,
.mask = MDCR_EL2_TDOSA,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_MDCR_TDRA] = {
.index = MDCR_EL2,
.value = MDCR_EL2_TDRA,
.mask = MDCR_EL2_TDRA,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_MDCR_E2PB] = {
.index = MDCR_EL2,
.value = 0,
.mask = BIT(MDCR_EL2_E2PB_SHIFT),
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_MDCR_TPMS] = {
.index = MDCR_EL2,
.value = MDCR_EL2_TPMS,
.mask = MDCR_EL2_TPMS,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_MDCR_TTRF] = {
.index = MDCR_EL2,
.value = MDCR_EL2_TTRF,
.mask = MDCR_EL2_TTRF,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_MDCR_E2TB] = {
.index = MDCR_EL2,
.value = 0,
.mask = BIT(MDCR_EL2_E2TB_SHIFT),
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_MDCR_TDCC] = {
.index = MDCR_EL2,
.value = MDCR_EL2_TDCC,
.mask = MDCR_EL2_TDCC,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_CPACR_E0POE] = {
.index = CPTR_EL2,
.value = CPACR_ELx_E0POE,
.mask = CPACR_ELx_E0POE,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_CPTR_TAM] = {
.index = CPTR_EL2,
.value = CPTR_EL2_TAM,
.mask = CPTR_EL2_TAM,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_CPTR_TCPAC] = {
.index = CPTR_EL2,
.value = CPTR_EL2_TCPAC,
.mask = CPTR_EL2_TCPAC,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_HCRX_EnFPM] = {
.index = HCRX_EL2,
.value = 0,
.mask = HCRX_EL2_EnFPM,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_HCRX_TCR2En] = {
.index = HCRX_EL2,
.value = 0,
.mask = HCRX_EL2_TCR2En,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_ICH_HCR_TC] = {
.index = ICH_HCR_EL2,
.value = ICH_HCR_TC,
.mask = ICH_HCR_TC,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_ICH_HCR_TALL0] = {
.index = ICH_HCR_EL2,
.value = ICH_HCR_TALL0,
.mask = ICH_HCR_TALL0,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_ICH_HCR_TALL1] = {
.index = ICH_HCR_EL2,
.value = ICH_HCR_TALL1,
.mask = ICH_HCR_TALL1,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
[CGT_ICH_HCR_TDIR] = {
.index = ICH_HCR_EL2,
.value = ICH_HCR_TDIR,
.mask = ICH_HCR_TDIR,
- .behaviour = BEHAVE_FORWARD_ANY,
+ .behaviour = BEHAVE_FORWARD_RW,
},
};
@@ -474,7 +475,7 @@ static enum trap_behaviour check_cnthctl_el1pcten(struct kvm_vcpu *vcpu)
if (get_sanitized_cnthctl(vcpu) & (CNTHCTL_EL1PCTEN << 10))
return BEHAVE_HANDLE_LOCALLY;
- return BEHAVE_FORWARD_ANY;
+ return BEHAVE_FORWARD_RW;
}
static enum trap_behaviour check_cnthctl_el1pten(struct kvm_vcpu *vcpu)
@@ -482,7 +483,7 @@ static enum trap_behaviour check_cnthctl_el1pten(struct kvm_vcpu *vcpu)
if (get_sanitized_cnthctl(vcpu) & (CNTHCTL_EL1PCEN << 10))
return BEHAVE_HANDLE_LOCALLY;
- return BEHAVE_FORWARD_ANY;
+ return BEHAVE_FORWARD_RW;
}
static enum trap_behaviour check_cptr_tta(struct kvm_vcpu *vcpu)
@@ -493,7 +494,7 @@ static enum trap_behaviour check_cptr_tta(struct kvm_vcpu *vcpu)
val = translate_cptr_el2_to_cpacr_el1(val);
if (val & CPACR_ELx_TTA)
- return BEHAVE_FORWARD_ANY;
+ return BEHAVE_FORWARD_RW;
return BEHAVE_HANDLE_LOCALLY;
}
--
2.47.0.rc0.187.ge670bccf7e-goog
next prev parent reply other threads:[~2024-10-07 17:46 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-07 17:45 [PATCH v3 00/17] KVM: arm64: nv: Support for EL2 PMU controls Oliver Upton
2024-10-07 17:45 ` [PATCH v3 01/17] KVM: arm64: Extend masking facility to arbitrary registers Oliver Upton
2024-10-07 17:45 ` [PATCH v3 02/17] arm64: sysreg: Migrate MDCR_EL2 definition to table Oliver Upton
2024-10-13 11:28 ` Marc Zyngier
2024-10-07 17:45 ` [PATCH v3 03/17] arm64: sysreg: Add missing definitions for ID_AA64DFR0_EL1 Oliver Upton
2024-10-07 17:45 ` [PATCH v3 04/17] KVM: arm64: Describe RES0/RES1 bits of MDCR_EL2 Oliver Upton
2024-10-13 11:40 ` Marc Zyngier
2024-10-07 17:45 ` [PATCH v3 05/17] KVM: arm64: nv: Allow coarse-grained trap combos to use complex traps Oliver Upton
2024-10-07 17:45 ` Oliver Upton [this message]
2024-10-07 17:45 ` [PATCH v3 07/17] KVM: arm64: nv: Reinject traps that take effect in Host EL0 Oliver Upton
2024-10-07 17:45 ` [PATCH v3 08/17] KVM: arm64: nv: Honor MDCR_EL2.{TPM, TPMCR} " Oliver Upton
2024-10-07 17:45 ` [PATCH v3 09/17] KVM: arm64: nv: Describe trap behaviour of MDCR_EL2.HPMN Oliver Upton
2024-10-13 12:03 ` Marc Zyngier
2024-10-07 17:45 ` [PATCH v3 10/17] KVM: arm64: nv: Advertise support for FEAT_HPMN0 Oliver Upton
2024-10-07 17:45 ` [PATCH v3 11/17] KVM: arm64: Rename kvm_pmu_valid_counter_mask() Oliver Upton
2024-10-07 17:45 ` [PATCH v3 12/17] KVM: arm64: nv: Adjust range of accessible PMCs according to HPMN Oliver Upton
2024-10-13 12:14 ` Marc Zyngier
2024-10-07 17:45 ` [PATCH v3 13/17] KVM: arm64: Add helpers to determine if PMC counts at a given EL Oliver Upton
2024-10-07 17:45 ` [PATCH v3 14/17] KVM: arm64: nv: Honor MDCR_EL2.HPME Oliver Upton
2024-10-07 17:45 ` [PATCH v3 15/17] KVM: arm64: nv: Honor MDCR_EL2.HLP Oliver Upton
2024-10-07 17:45 ` [PATCH v3 16/17] KVM: arm64: nv: Apply EL2 event filtering when in hyp context Oliver Upton
2024-10-07 17:45 ` [PATCH v3 17/17] KVM: arm64: nv: Reprogram PMU events affected by nested transition Oliver Upton
2024-10-13 12:43 ` [PATCH v3 00/17] KVM: arm64: nv: Support for EL2 PMU controls Marc Zyngier
2024-10-25 5:17 ` Anshuman Khandual
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