arm64: Rename ARM64_SSBD to ARM64_SPECTRE_V4

In a similar manner to the renaming of ARM64_HARDEN_BRANCH_PREDICTOR
to ARM64_SPECTRE_V2, rename ARM64_SSBD to ARM64_SPECTRE_V4. This isn't
_entirely_ accurate, as we also need to take into account the interaction
with SSBS, but that will be taken care of in subsequent patches.

Signed-off-by: Will Deacon <will@kernel.org>

diff --git a/arch/arm64/include/asm/cpucaps.h b/arch/arm64/include/asm/cpucaps.h
index 348bfcf..c4ac9a1 100644 (file)
--- a/arch/arm64/include/asm/cpucaps.h
+++ b/arch/arm64/include/asm/cpucaps.h
@@ -37,7 +37,7 @@
 #define ARM64_HAS_CACHE_IDC                    27
 #define ARM64_HAS_CACHE_DIC                    28
 #define ARM64_HW_DBM                           29
-#define ARM64_SSBD                             30
+#define ARM64_SPECTRE_V4                       30
 #define ARM64_MISMATCHED_CACHE_TYPE            31
 #define ARM64_HAS_STAGE2_FWB                   32
 #define ARM64_HAS_CRC32                                33

diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c
index 4103391..6a48957 100644 (file)
--- a/arch/arm64/kernel/cpu_errata.c
+++ b/arch/arm64/kernel/cpu_errata.c
@@ -675,7 +675,7 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
 #endif
        {
                .desc = "Speculative Store Bypass Disable",
-               .capability = ARM64_SSBD,
+               .capability = ARM64_SPECTRE_V4,
                .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
                .matches = has_ssbd_mitigation,
                .cpu_enable = cpu_enable_ssbd_mitigation,

diff --git a/arch/arm64/kvm/hyp/include/hyp/switch.h b/arch/arm64/kvm/hyp/include/hyp/switch.h
index b503f19..5dec558 100644 (file)
--- a/arch/arm64/kvm/hyp/include/hyp/switch.h
+++ b/arch/arm64/kvm/hyp/include/hyp/switch.h
@@ -481,7 +481,7 @@ exit:
 
 static inline bool __needs_ssbd_off(struct kvm_vcpu *vcpu)
 {
-       if (!cpus_have_final_cap(ARM64_SSBD))
+       if (!cpus_have_final_cap(ARM64_SPECTRE_V4))
                return false;
 
        return !(vcpu->arch.workaround_flags & VCPU_WORKAROUND_2_FLAG);