linux-kernel - Re: [PATCH v2 0/2] Dump instructions on panic for pKVM/nvhe

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Message-Id: <175793804436.660835.10602448198623077028.b4-ty@kernel.org>
Date: Mon, 15 Sep 2025 13:07:36 +0100
From: Marc Zyngier <maz@...nel.org>
To: linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	kvmarm@...ts.linux.dev,
	Mostafa Saleh <smostafa@...gle.com>
Cc: catalin.marinas@....com,
	will@...nel.org,
	oliver.upton@...ux.dev,
	joey.gouly@....com,
	suzuki.poulose@....com,
	yuzenghui@...wei.com,
	perret@...gle.com,
	keirf@...gle.com
Subject: Re: [PATCH v2 0/2] Dump instructions on panic for pKVM/nvhe

On Tue, 09 Sep 2025 13:36:29 +0000, Mostafa Saleh wrote:
> This small series, adds support for dumping the faulting instructions on
> panic in pKVM and nvhe, similarly to what the kernel does as follow:
> [   12.012126] kvm [190]: nVHE hyp BUG at: [<ffff8000811c5f64>] __kvm_nvhe_handle___kvm_vcpu_run+0x4/0x8!
> [   12.015747] kvm [190]: Cannot dump pKVM nVHE stacktrace: !CONFIG_PROTECTED_NVHE_STACKTRACE
> [   12.016044] Code: a8c17bfd d50323bf d65f03c0 d503245f (d4210000)
> [   12.016082] kvm [190]: Hyp Offset: 0xffeff6887fe00000
> [   12.016325] Kernel panic - not syncing: HYP panic:
> [   12.016325] PS:204023c9 PC:000f8978013c5f64 ESR:00000000f2000800
> [   12.016325] FAR:fff00000c016e01c HPFAR:00000000010016e0 PAR:0000000000000000
> 
> [...]

Applied to next, thanks!

[1/2] KVM: arm64: Dump instruction on hyp panic
      commit: 92b7624fe052ffb0b7b70d96cd514e02e91664a8
[2/2] KVM: arm64: Map hyp text as RO and dump instr on panic
      commit: 6f1ece1e868839cf81a28c77e19420ff57df7ecf

Cheers,

	M.
-- 
Without deviation from the norm, progress is not possible.