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arm64: Add ARM64_WORKAROUND_1319367 for all A57 and A72 versions 

Rework the EL2 vector hardening that is only selected for A57 and A72
so that the table can also be used for ARM64_WORKAROUND_1319367.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
This commit is contained in:
Marc Zyngier 2018-11-23 17:25:52 +00:00
parent 4f5cafb5cb
commit f75e2294a4
2 changed files with 12 additions and 4 deletions
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3
arch/arm64/include/asm/cpucaps.h
View File

@ -52,7 +52,8 @@
#define ARM64_HAS_IRQ_PRIO_MASKING 42
#define ARM64_HAS_DCPODP 43
#define ARM64_WORKAROUND_1463225 44
#define ARM64_WORKAROUND_1319367 45
#define ARM64_NCAPS 45
#define ARM64_NCAPS 46
#endif /* __ASM_CPUCAPS_H */

13
arch/arm64/kernel/cpu_errata.c
View File

@ -623,9 +623,9 @@ check_branch_predictor(const struct arm64_cpu_capabilities *entry, int scope)
return (need_wa > 0);
}
#ifdef CONFIG_HARDEN_EL2_VECTORS
#if defined(CONFIG_HARDEN_EL2_VECTORS) || defined(CONFIG_ARM64_ERRATUM_1319367)
static const struct midr_range arm64_harden_el2_vectors[] = {
static const struct midr_range ca57_a72[] = {
MIDR_ALL_VERSIONS(MIDR_CORTEX_A57),
MIDR_ALL_VERSIONS(MIDR_CORTEX_A72),
{},
@ -819,7 +819,7 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
{
.desc = "EL2 vector hardening",
.capability = ARM64_HARDEN_EL2_VECTORS,
ERRATA_MIDR_RANGE_LIST(arm64_harden_el2_vectors),
ERRATA_MIDR_RANGE_LIST(ca57_a72),
},
#endif
{
@ -851,6 +851,13 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
.type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
.matches = has_cortex_a76_erratum_1463225,
},
#endif
#ifdef CONFIG_ARM64_ERRATUM_1319367
{
.desc = "ARM erratum 1319367",
.capability = ARM64_WORKAROUND_1319367,
ERRATA_MIDR_RANGE_LIST(ca57_a72),
},
#endif
{
}