Re: Patch "KVM: arm64: Discard PC update state on vcpu reset" has been added to the 5.15-stable tree

Re: Patch "KVM: arm64: Discard PC update state on vcpu reset" has been added to the 5.15-stable tree

[Marc Zyngier]

On Sun, 29 Mar 2026 13:48:18 +0100,
<gregkh@linuxfoundation.org> wrote:
> 
> 
> This is a note to let you know that I've just added the patch titled
> 
>     KVM: arm64: Discard PC update state on vcpu reset
> 
> to the 5.15-stable tree which can be found at:
>     http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
> 
> The filename of the patch is:
>      kvm-arm64-discard-pc-update-state-on-vcpu-reset.patch
> and it can be found in the queue-5.15 subdirectory.
> 
> If you, or anyone else, feels it should not be added to the stable tree,
> please let <stable@vger.kernel.org> know about it.

This won't even compile, as the helpers required were only added in
6.0.

Please drop this from 5.10 and 5.15 stable branches.

Thanks,

	M.

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

Re: Patch "KVM: arm64: Discard PC update state on vcpu reset" has been added to the 5.15-stable tree

[Greg KH]

On Mon, Mar 30, 2026 at 09:31:16AM +0100, Marc Zyngier wrote:
> On Sun, 29 Mar 2026 13:48:18 +0100,
> <gregkh@linuxfoundation.org> wrote:
> > 
> > 
> > This is a note to let you know that I've just added the patch titled
> > 
> >     KVM: arm64: Discard PC update state on vcpu reset
> > 
> > to the 5.15-stable tree which can be found at:
> >     http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
> > 
> > The filename of the patch is:
> >      kvm-arm64-discard-pc-update-state-on-vcpu-reset.patch
> > and it can be found in the queue-5.15 subdirectory.
> > 
> > If you, or anyone else, feels it should not be added to the stable tree,
> > please let <stable@vger.kernel.org> know about it.
> 
> This won't even compile, as the helpers required were only added in
> 6.0.

Ah, then the "Fixes:" tag was wrong here :(

> Please drop this from 5.10 and 5.15 stable branches.

Will do, thanks!

greg k-h

Re: Patch "KVM: arm64: Discard PC update state on vcpu reset" has been added to the 5.15-stable tree

[Marc Zyngier]

On Mon, 30 Mar 2026 10:22:23 +0100,
Greg KH <gregkh@linuxfoundation.org> wrote:
> 
> On Mon, Mar 30, 2026 at 09:31:16AM +0100, Marc Zyngier wrote:
> > On Sun, 29 Mar 2026 13:48:18 +0100,
> > <gregkh@linuxfoundation.org> wrote:
> > > 
> > > 
> > > This is a note to let you know that I've just added the patch titled
> > > 
> > >     KVM: arm64: Discard PC update state on vcpu reset
> > > 
> > > to the 5.15-stable tree which can be found at:
> > >     http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
> > > 
> > > The filename of the patch is:
> > >      kvm-arm64-discard-pc-update-state-on-vcpu-reset.patch
> > > and it can be found in the queue-5.15 subdirectory.
> > > 
> > > If you, or anyone else, feels it should not be added to the stable tree,
> > > please let <stable@vger.kernel.org> know about it.
> > 
> > This won't even compile, as the helpers required were only added in
> > 6.0.
> 
> Ah, then the "Fixes:" tag was wrong here :(

I think the tag is correct. That's the point where the bug was
introduced, but that doesn't mean the fix applies all the way back.

Fixes for pre-6.0 will be pretty different, I expect.

Thanks,

	M.

-- 
Jazz isn't dead. It just smells funny.