From: Sumit Garg <sumit.garg@linaro.org>
To: will@kernel.org, catalin.marinas@arm.com, mark.rutland@arm.com,
daniel.thompson@linaro.org, dianders@chromium.org
Cc: liwei391@huawei.com, mhiramat@kernel.org, maz@kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, Sumit Garg <sumit.garg@linaro.org>
Subject: [PATCH v5 0/2] arm64: Fix pending single-step debugging issues
Date: Mon, 19 Dec 2022 15:54:50 +0530 [thread overview]
Message-ID: <20221219102452.2860088-1-sumit.garg@linaro.org> (raw)
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 v5:
- Incorporated misc. comments from Mark.
Changes in v4:
- Rebased to the tip of mainline.
- Picked up Doug's Tested-by tag.
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 | 22 ++++++++++++++++++++--
arch/arm64/kernel/kgdb.c | 2 ++
4 files changed, 28 insertions(+), 2 deletions(-)
--
2.34.1
next reply other threads:[~2022-12-19 10:25 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-19 10:24 Sumit Garg [this message]
2022-12-19 10:24 ` [PATCH v5 1/2] arm64: entry: Skip single stepping into interrupt handlers Sumit Garg
2023-01-26 13:39 ` Will Deacon
2023-01-27 9:48 ` Sumit Garg
2023-01-27 11:21 ` Ard Biesheuvel
2022-12-19 10:24 ` [PATCH v5 2/2] arm64: kgdb: Set PSTATE.SS to 1 to re-enable single-step Sumit Garg
2023-01-27 11:50 ` Will Deacon
2023-01-27 12:30 ` Sumit Garg
2023-01-12 9:22 ` [PATCH v5 0/2] arm64: Fix pending single-step debugging issues Sumit Garg
2023-01-24 18:04 ` Daniel Thompson
2023-01-25 9:18 ` Luis Machado
2023-01-27 6:15 ` Sumit Garg
2023-01-27 6:04 ` Sumit Garg
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