Thread (119 messages) 119 messages, 3 authors, 2021-05-14

Re: [PATCH AUTOSEL 5.12 039/116] KVM: arm64: Use BUG and BUG_ON in nVHE hyp

From: Marc Zyngier <maz@kernel.org>
Date: 2021-05-05 17:21:43
Also in: kvmarm, linux-arm-kernel, lkml

On Wed, 05 May 2021 17:30:07 +0100,
Sasha Levin [off-list ref] wrote:
From: Andrew Scull <redacted>

[ Upstream commit f79e616f27ab6cd74deb0995a8eead3d1c9d65af ]

hyp_panic() reports the address of the panic by using ELR_EL2, but this
isn't a useful address when hyp_panic() is called directly. Replace such
direct calls with BUG() and BUG_ON() which use BRK to trigger an
exception that then goes to hyp_panic() with the correct address. Also
remove the hyp_panic() declaration from the header file to avoid
accidental misuse.

Signed-off-by: Andrew Scull <redacted>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210318143311.839894-5-ascull@google.com (local)
Signed-off-by: Sasha Levin <sashal@kernel.org>
Same this for this patch.

	M.

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