diff options
| author | Marc Zyngier <maz@kernel.org> | 2021-10-17 13:42:25 +0100 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2021-10-19 10:56:20 +0100 |
| commit | fee29f008aa3f2aff01117f28b57b1145d92cb9b (patch) | |
| tree | c8e8ea36d8cb73ced0b6557d7e862cf9571408bb /arch/arm64/kernel/cpuinfo.c | |
| parent | ae976f063b605dd558571eff40c8229ffbc39e24 (diff) | |
arm64: Add HWCAP for self-synchronising virtual counter
Since userspace can make use of the CNTVSS_EL0 instruction, expose
it via a HWCAP.
Suggested-by: Will Deacon <will@kernel.org>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211017124225.3018098-18-maz@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/kernel/cpuinfo.c')
| -rw-r--r-- | arch/arm64/kernel/cpuinfo.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/kernel/cpuinfo.c b/arch/arm64/kernel/cpuinfo.c index 87731fea5e41..6e27b759056a 100644 --- a/arch/arm64/kernel/cpuinfo.c +++ b/arch/arm64/kernel/cpuinfo.c @@ -94,6 +94,7 @@ static const char *const hwcap_str[] = { [KERNEL_HWCAP_RNG] = "rng", [KERNEL_HWCAP_BTI] = "bti", [KERNEL_HWCAP_MTE] = "mte", + [KERNEL_HWCAP_ECV] = "ecv", }; #ifdef CONFIG_COMPAT |