Commits
Julien Thierry committed 723ba793849
arm64: Do not enable IRQs for ct_user_exit [ Upstream commit 9034f6251572a4744597c51dea5ab73a55f2b938 ] For el0_dbg and el0_error, DAIF bits get explicitly cleared before calling ct_user_exit. When context tracking is disabled, DAIF gets set (almost) immediately after. When context tracking is enabled, among the first things done is disabling IRQs. What is actually needed is: - PSR.D = 0 so the system can be debugged (should be already the case) - PSR.A = 0 so async error can be handled during context tracking Do not clear PSR.I in those two locations. Reviewed-by: Marc Zyngier <marc.zyngier@arm.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Reviewed-by: James Morse <james.morse@arm.com> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Julien Thierry <julien.thierry@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Sasha Levin <sashal@kernel.org>