diff options
| author | Will Deacon <will@kernel.org> | 2020-11-13 11:38:45 +0000 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2020-11-16 10:43:06 +0000 |
| commit | c4792b6dbc5070fe67f4cdcfdad39416333acbe0 (patch) | |
| tree | 5a7721a792a59da36ae0568f88c4125b644e7617 /arch/arm64/kvm | |
| parent | b881cdce77b48bd488f268041f32951bab89bb0f (diff) | |
arm64: spectre: Rename ARM64_HARDEN_EL2_VECTORS to ARM64_SPECTRE_V3A
Since ARM64_HARDEN_EL2_VECTORS is really a mitigation for Spectre-v3a,
rename it accordingly for consistency with the v2 and v4 mitigation.
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/r/20201113113847.21619-9-will@kernel.org
Diffstat (limited to 'arch/arm64/kvm')
| -rw-r--r-- | arch/arm64/kvm/arm.c | 8 | ||||
| -rw-r--r-- | arch/arm64/kvm/hyp/hyp-entry.S | 3 | ||||
| -rw-r--r-- | arch/arm64/kvm/va_layout.c | 4 |
3 files changed, 6 insertions, 9 deletions
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c index 5e6fe5eef3ec..4cc29300f533 100644 --- a/arch/arm64/kvm/arm.c +++ b/arch/arm64/kvm/arm.c @@ -1314,7 +1314,7 @@ static int kvm_init_vector_slots(void) base = kern_hyp_va(kvm_ksym_ref(__bp_harden_hyp_vecs)); kvm_init_vector_slot(base, HYP_VECTOR_SPECTRE_DIRECT); - if (!cpus_have_const_cap(ARM64_HARDEN_EL2_VECTORS)) + if (!cpus_have_const_cap(ARM64_SPECTRE_V3A)) return 0; if (!has_vhe()) { @@ -1388,15 +1388,15 @@ static void cpu_hyp_reset(void) * placed in one of the vector slots, which is executed before jumping * to the real vectors. * - * - If the CPU also has the ARM64_HARDEN_EL2_VECTORS cap, the slot + * - If the CPU also has the ARM64_SPECTRE_V3A cap, the slot * containing the hardening sequence is mapped next to the idmap page, * and executed before jumping to the real vectors. * - * - If the CPU only has the ARM64_HARDEN_EL2_VECTORS cap, then an + * - If the CPU only has the ARM64_SPECTRE_V3A cap, then an * empty slot is selected, mapped next to the idmap page, and * executed before jumping to the real vectors. * - * Note that ARM64_HARDEN_EL2_VECTORS is somewhat incompatible with + * Note that ARM64_SPECTRE_V3A is somewhat incompatible with * VHE, as we don't have hypervisor-specific mappings. If the system * is VHE and yet selects this capability, it will be ignored. */ diff --git a/arch/arm64/kvm/hyp/hyp-entry.S b/arch/arm64/kvm/hyp/hyp-entry.S index d0a3660c7256..e3249e2dda09 100644 --- a/arch/arm64/kvm/hyp/hyp-entry.S +++ b/arch/arm64/kvm/hyp/hyp-entry.S @@ -209,8 +209,7 @@ SYM_CODE_END(__kvm_hyp_vector) .if \indirect != 0 alternative_cb kvm_patch_vector_branch /* - * For ARM64_HARDEN_EL2_VECTORS configurations, these NOPs get replaced - * with: + * For ARM64_SPECTRE_V3A configurations, these NOPs get replaced with: * * movz x0, #(addr & 0xffff) * movk x0, #((addr >> 16) & 0xffff), lsl #16 diff --git a/arch/arm64/kvm/va_layout.c b/arch/arm64/kvm/va_layout.c index cc8e8756600f..02362fa27be4 100644 --- a/arch/arm64/kvm/va_layout.c +++ b/arch/arm64/kvm/va_layout.c @@ -139,10 +139,8 @@ void kvm_patch_vector_branch(struct alt_instr *alt, BUG_ON(nr_inst != 4); - if (!cpus_have_const_cap(ARM64_HARDEN_EL2_VECTORS) || - WARN_ON_ONCE(has_vhe())) { + if (!cpus_have_const_cap(ARM64_SPECTRE_V3A) || WARN_ON_ONCE(has_vhe())) return; - } /* * Compute HYP VA by using the same computation as kern_hyp_va() |