linux-kernel - Re: [PATCH v2 1/2] KVM: arm64: Dump instruction on hyp panic

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Message-ID: <aMfwdInqPCiqc8rn@willie-the-truck>
Date: Mon, 15 Sep 2025 11:54:44 +0100
From: Will Deacon <will@...nel.org>
To: Mostafa Saleh <smostafa@...gle.com>
Cc: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	kvmarm@...ts.linux.dev, catalin.marinas@....com, maz@...nel.org,
	oliver.upton@...ux.dev, joey.gouly@....com, suzuki.poulose@....com,
	yuzenghui@...wei.com, perret@...gle.com, keirf@...gle.com,
	Kunwu Chan <chentao@...inos.cn>
Subject: Re: [PATCH v2 1/2] KVM: arm64: Dump instruction on hyp panic

On Tue, Sep 09, 2025 at 01:36:30PM +0000, Mostafa Saleh wrote:
> Similar to the kernel panic, where the instruction code is printed,
> we can do the same for hypervisor panics.
> 
> This patch does that only in case of “CONFIG_NVHE_EL2_DEBUG” or nvhe.
> 
> The next patch adds support for pKVM.
> 
> Also, remove the hardcoded argument dump_kernel_instr().
> 
> Signed-off-by: Mostafa Saleh <smostafa@...gle.com>
> Tested-by: Kunwu Chan <chentao@...inos.cn>
> Reviewed-by: Kunwu Chan <chentao@...inos.cn>
> ---
>  arch/arm64/include/asm/traps.h |  1 +
>  arch/arm64/kernel/traps.c      | 15 +++++++++------
>  arch/arm64/kvm/handle_exit.c   |  5 +++++
>  3 files changed, 15 insertions(+), 6 deletions(-)

Thanks for the respin:

Acked-by: Will Deacon <will@...nel.org>

Will