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| author | Marc Zyngier <maz@kernel.org> | 2024-02-12 17:47:35 +0300 |
|---|---|---|
| committer | Oliver Upton <oliver.upton@linux.dev> | 2024-02-12 20:42:52 +0300 |
| commit | 87b8cf2387c5ee79576988b2e72b84eeb92c57ec (patch) | |
| tree | 60d65aaf9f318918c6bbebb526b701406b9b76a5 /lib/memory-notifier-error-inject.c | |
| parent | aade38faca631f25ec2842da4094d74bb2790bd5 (diff) | |
| download | linux-87b8cf2387c5ee79576988b2e72b84eeb92c57ec.tar.xz | |
arm64: cpufeatures: Add missing ID_AA64MMFR4_EL1 to __read_sysreg_by_encoding()
When triggering a CPU hotplug scenario, we reparse the CPU feature
with SCOPE_LOCAL_CPU, for which we use __read_sysreg_by_encoding()
to get the HW value for this CPU.
As it turns out, we're missing the handling for ID_AA64MMFR4_EL1,
and trigger a BUG(). Funnily enough, Marek isn't completely happy
about that.
Add the damn register to the list.
Fixes: 805bb61f8279 ("arm64: cpufeature: Add ID_AA64MMFR4_EL1 handling")
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20240212144736.1933112-2-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Diffstat (limited to 'lib/memory-notifier-error-inject.c')
0 files changed, 0 insertions, 0 deletions