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Re: [PATCH v2 for 6.2?] gicv3: fix ICH_MISR's LRENP computation


From: Peter Maydell
Subject: Re: [PATCH v2 for 6.2?] gicv3: fix ICH_MISR's LRENP computation
Date: Tue, 7 Dec 2021 15:45:52 +0000

On Tue, 7 Dec 2021 at 15:24, Peter Maydell <peter.maydell@linaro.org> wrote:
> The bug is a bug in any case and we'll fix it, it's just a
> question of whether it meets the bar to go into 6.2, which is
> hopefully going to have its final RC tagged today. If this
> patch had arrived a week ago then the bar would have been
> lower and it would definitely have gone in. As it is I have
> to weigh up the chances of this change causing a regression
> for eg KVM running on emulated QEMU.

Looking at the KVM source it doesn't ever set the LRENPIE
bit (it doesn't even have a #define for it), which both
explains why we didn't notice this bug before and also
means we can be pretty certain we're not going to cause a
regression for KVM at least if we fix it...

-- PMM



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