From: christoffer.dall@linaro.org (Christoffer Dall)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2] kvm: arm: Enforce some NS-SVC initialisation
Date: Wed, 17 Aug 2016 13:17:51 +0200 [thread overview]
Message-ID: <20160817111751.GG8808@cbox> (raw)
In-Reply-To: <6d030bee2db08c2fe1b7569e692e8f66800b1e4c.1471369569.git.robin.murphy@arm.com>
Hi Russell,
On Tue, Aug 16, 2016 at 06:49:18PM +0100, Robin Murphy wrote:
> Since the non-secure copies of banked registers lack architecturally
> defined reset values, there is no actual guarantee when entering in Hyp
> from secure-only firmware that the Non-Secure PL1 state will look the
> way that kernel entry (in particular the decompressor stub) expects.
> So far, we've been getting away with it thanks to implementation details
> of ARMv7 cores and/or bootloader behaviour, but for the sake of forwards
> compatibility let's try to ensure that we have a minimally sane state
> before dropping down into it.
>
> Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Can we have your acked-by on this patch to merge it via the KVM tree or
do you prefer merging this one directly yourself?
Thanks,
-Christoffer
next prev parent reply other threads:[~2016-08-17 11:17 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-21 12:01 [PATCH] kvm: arm: Enforce some NS-SVC initialisation Robin Murphy
2016-08-16 13:33 ` Marc Zyngier
2016-08-16 14:51 ` Robin Murphy
2016-08-16 17:49 ` [PATCH v2] " Robin Murphy
2016-08-17 10:05 ` Marc Zyngier
2016-08-17 11:16 ` Christoffer Dall
2016-08-17 11:17 ` Christoffer Dall [this message]
2016-08-17 11:32 ` Christoffer Dall
2016-09-06 16:41 ` Christoffer Dall
2016-09-06 16:44 ` Robin Murphy
2016-09-06 16:59 ` Christoffer Dall
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