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

From: Damien Hedde
Subject: Re: [PATCH v2 for 6.2?] gicv3: fix ICH_MISR's LRENP computation
Date: Tue, 7 Dec 2021 16:49:00 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.3.2

On 12/7/21 16:45, Peter Maydell wrote:
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

We are perfectly fine with this not going into 6.2.


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