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Date: Wed, 11 May 2022 11:35:19 +0530 From: Sumit Garg <sumit.garg@...aro.org> To: daniel.thompson@...aro.org, dianders@...omium.org, will@...nel.org, liwei391@...wei.com Cc: catalin.marinas@....com, mark.rutland@....com, mhiramat@...nel.org, jason.wessel@...driver.com, maz@...nel.org, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, Sumit Garg <sumit.garg@...aro.org> Subject: [PATCH v3 0/2] arm64: Fix pending single-step debugging issues This patch-set reworks pending fixes from Wei's series [1] to make single-step debugging via kgdb/kdb on arm64 work as expected. There was a prior discussion on ML [2] regarding if we should keep the interrupts enabled during single-stepping. So patch #1 follows suggestion from Will [3] to not disable interrupts during single stepping but rather skip single stepping within interrupt handler. [1] https://lore.kernel.org/all/20200509214159.19680-1-liwei391@huawei.com/ [2] https://lore.kernel.org/all/CAD=FV=Voyfq3Qz0T3RY+aYWYJ0utdH=P_AweB=13rcV8GDBeyQ@mail.gmail.com/ [3] https://lore.kernel.org/all/20200626095551.GA9312@willie-the-truck/ Changes in v3: - Reword commit descriptions as per Daniel's suggestions. Changes in v2: - Replace patch #1 to rather follow Will's suggestion. Sumit Garg (2): arm64: entry: Skip single stepping into interrupt handlers arm64: kgdb: Set PSTATE.SS to 1 to re-enable single-step arch/arm64/include/asm/debug-monitors.h | 1 + arch/arm64/kernel/debug-monitors.c | 5 +++++ arch/arm64/kernel/entry-common.c | 18 +++++++++++++++++- arch/arm64/kernel/kgdb.c | 2 ++ 4 files changed, 25 insertions(+), 1 deletion(-) -- 2.25.1
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