From: Steven Price <steven.price@arm.com>
To: Catalin Marinas <catalin.marinas@arm.com>,
Marc Zyngier <maz@kernel.org>, Will Deacon <will@kernel.org>
Cc: kvmarm@lists.cs.columbia.edu,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, James Morse <james.morse@arm.com>,
Julien Thierry <julien.thierry.kdev@gmail.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Steven Price <steven.price@arm.com>
Subject: [PATCH v3 2/3] arm64: Rename WORKAROUND_1319367 to SPECULATIVE_AT_NVHE
Date: Wed, 13 Nov 2019 17:22:51 +0000 [thread overview]
Message-ID: <20191113172252.12610-3-steven.price@arm.com> (raw)
In-Reply-To: <20191113172252.12610-1-steven.price@arm.com>
To match SPECULATIVE_AT_VHE let's also have a generic name for the NVHE
variant.
Signed-off-by: Steven Price <steven.price@arm.com>
---
arch/arm64/Kconfig | 4 ++++
arch/arm64/include/asm/cpucaps.h | 2 +-
arch/arm64/kernel/cpu_errata.c | 2 +-
arch/arm64/kvm/hyp/switch.c | 4 ++--
arch/arm64/kvm/hyp/sysreg-sr.c | 4 ++--
arch/arm64/kvm/hyp/tlb.c | 4 ++--
6 files changed, 12 insertions(+), 8 deletions(-)
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index ce976d69cd3c..defb68e45387 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -548,9 +548,13 @@ config ARM64_ERRATUM_1286807
invalidated has been observed by other observers. The
workaround repeats the TLBI+DSB operation.
+config ARM64_WORKAROUND_SPECULATIVE_AT_NVHE
+ bool
+
config ARM64_ERRATUM_1319367
bool "Cortex-A57/A72: Speculative AT instruction using out-of-context translation regime could cause subsequent request to generate an incorrect translation"
default y
+ select ARM64_WORKAROUND_SPECULATIVE_AT_NVHE
help
This option adds work arounds for ARM Cortex-A57 erratum 1319537
and A72 erratum 1319367
diff --git a/arch/arm64/include/asm/cpucaps.h b/arch/arm64/include/asm/cpucaps.h
index 327a38a5162f..3d1aa1b02093 100644
--- a/arch/arm64/include/asm/cpucaps.h
+++ b/arch/arm64/include/asm/cpucaps.h
@@ -55,7 +55,7 @@
#define ARM64_WORKAROUND_CAVIUM_TX2_219_TVM 45
#define ARM64_WORKAROUND_CAVIUM_TX2_219_PRFM 46
#define ARM64_WORKAROUND_1542419 47
-#define ARM64_WORKAROUND_1319367 48
+#define ARM64_WORKAROUND_SPECULATIVE_AT_NVHE 48
#define ARM64_NCAPS 49
diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c
index 6242bba1cfb9..c7f1f5398a44 100644
--- a/arch/arm64/kernel/cpu_errata.c
+++ b/arch/arm64/kernel/cpu_errata.c
@@ -919,7 +919,7 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
#ifdef CONFIG_ARM64_ERRATUM_1319367
{
.desc = "ARM erratum 1319367",
- .capability = ARM64_WORKAROUND_1319367,
+ .capability = ARM64_WORKAROUND_SPECULATIVE_AT_NVHE,
ERRATA_MIDR_RANGE_LIST(ca57_a72),
},
#endif
diff --git a/arch/arm64/kvm/hyp/switch.c b/arch/arm64/kvm/hyp/switch.c
index eefcaa6d839f..0fc824bdf258 100644
--- a/arch/arm64/kvm/hyp/switch.c
+++ b/arch/arm64/kvm/hyp/switch.c
@@ -119,7 +119,7 @@ static void __hyp_text __activate_traps_nvhe(struct kvm_vcpu *vcpu)
write_sysreg(val, cptr_el2);
- if (cpus_have_const_cap(ARM64_WORKAROUND_1319367)) {
+ if (cpus_have_const_cap(ARM64_WORKAROUND_SPECULATIVE_AT_NVHE)) {
struct kvm_cpu_context *ctxt = &vcpu->arch.ctxt;
isb();
@@ -173,7 +173,7 @@ static void __hyp_text __deactivate_traps_nvhe(void)
{
u64 mdcr_el2 = read_sysreg(mdcr_el2);
- if (cpus_have_const_cap(ARM64_WORKAROUND_1319367)) {
+ if (cpus_have_const_cap(ARM64_WORKAROUND_SPECULATIVE_AT_NVHE)) {
u64 val;
/*
diff --git a/arch/arm64/kvm/hyp/sysreg-sr.c b/arch/arm64/kvm/hyp/sysreg-sr.c
index 22b8128d19f6..7672a978926c 100644
--- a/arch/arm64/kvm/hyp/sysreg-sr.c
+++ b/arch/arm64/kvm/hyp/sysreg-sr.c
@@ -118,7 +118,7 @@ static void __hyp_text __sysreg_restore_el1_state(struct kvm_cpu_context *ctxt)
write_sysreg(ctxt->sys_regs[MPIDR_EL1], vmpidr_el2);
write_sysreg(ctxt->sys_regs[CSSELR_EL1], csselr_el1);
- if (!cpus_have_const_cap(ARM64_WORKAROUND_1319367)) {
+ if (!cpus_have_const_cap(ARM64_WORKAROUND_SPECULATIVE_AT_NVHE)) {
write_sysreg_el1(ctxt->sys_regs[SCTLR_EL1], SYS_SCTLR);
write_sysreg_el1(ctxt->sys_regs[TCR_EL1], SYS_TCR);
} else if (!ctxt->__hyp_running_vcpu) {
@@ -149,7 +149,7 @@ static void __hyp_text __sysreg_restore_el1_state(struct kvm_cpu_context *ctxt)
write_sysreg(ctxt->sys_regs[PAR_EL1], par_el1);
write_sysreg(ctxt->sys_regs[TPIDR_EL1], tpidr_el1);
- if (cpus_have_const_cap(ARM64_WORKAROUND_1319367) &&
+ if (cpus_have_const_cap(ARM64_WORKAROUND_SPECULATIVE_AT_NVHE) &&
ctxt->__hyp_running_vcpu) {
/*
* Must only be done for host registers, hence the context
diff --git a/arch/arm64/kvm/hyp/tlb.c b/arch/arm64/kvm/hyp/tlb.c
index c827f3e0ba8f..ff4e73c9bafc 100644
--- a/arch/arm64/kvm/hyp/tlb.c
+++ b/arch/arm64/kvm/hyp/tlb.c
@@ -63,7 +63,7 @@ static void __hyp_text __tlb_switch_to_guest_vhe(struct kvm *kvm,
static void __hyp_text __tlb_switch_to_guest_nvhe(struct kvm *kvm,
struct tlb_inv_context *cxt)
{
- if (cpus_have_const_cap(ARM64_WORKAROUND_1319367)) {
+ if (cpus_have_const_cap(ARM64_WORKAROUND_SPECULATIVE_AT_NVHE)) {
u64 val;
/*
@@ -117,7 +117,7 @@ static void __hyp_text __tlb_switch_to_host_nvhe(struct kvm *kvm,
{
write_sysreg(0, vttbr_el2);
- if (cpus_have_const_cap(ARM64_WORKAROUND_1319367)) {
+ if (cpus_have_const_cap(ARM64_WORKAROUND_SPECULATIVE_AT_NVHE)) {
/* Ensure write of the host VMID */
isb();
/* Restore the host's TCR_EL1 */
--
2.20.1
next prev parent reply other threads:[~2019-11-13 17:23 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-13 17:22 [PATCH v3 0/3] arm64: Workaround for Cortex-A55 erratum 1530923 Steven Price
2019-11-13 17:22 ` [PATCH v3 1/3] arm64: Rename WORKAROUND_1165522 to SPECULATIVE_AT_VHE Steven Price
2019-11-14 10:25 ` Suzuki Kuruppassery Poulose
2019-11-13 17:22 ` Steven Price [this message]
2019-11-14 10:26 ` [PATCH v3 2/3] arm64: Rename WORKAROUND_1319367 to SPECULATIVE_AT_NVHE Suzuki Kuruppassery Poulose
2019-11-13 17:22 ` [PATCH v3 3/3] arm64: Workaround for Cortex-A55 erratum 1530923 Steven Price
2019-11-14 10:27 ` Suzuki Kuruppassery Poulose
2019-11-14 11:06 ` Steven Price
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