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Marc Zyngier authored
[ Upstream commit 85054035 ] Commit f436b2ac ("arm64: kernel: fix architected PMU registers unconditional access") made sure we wouldn't access unimplemented PMU registers, but also left MDCR_EL2 uninitialized in that case, leading to trap bits being potentially left set. Make sure we always write something in that register. Fixes: f436b2ac ("arm64: kernel: fix architected PMU registers unconditional access") Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: <stable@vger.kernel.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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