[v4,2/3] arm64: Rename WORKAROUND_1319367 to SPECULATIVE_AT_NVHE
diff mbox series

Message ID 20191114110658.20560-3-steven.price@arm.com
State New
Headers show
Series
  • arm64: Workaround for Cortex-A55 erratum 1530923
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Commit Message

Steven Price Nov. 14, 2019, 11:06 a.m. UTC
To match SPECULATIVE_AT_VHE let's also have a generic name for the NVHE
variant.

Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
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(-)

Patch
diff mbox series

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 */