Re: [PATCH v2 00/13] x86/msr: Drop 32-bit MSR interfaces

Jürgen Groß <[email protected]>
Newsgroups org.kernel.vger.linux-crypto,dev.linux.lists.linux-coco,dev.linux.lists.virtualization,org.freedesktop.lists.dri-devel,org.infradead.lists.linux-mtd,org.kernel.vger.kvm,org.kernel.vger.linux-acpi,org.kernel.vger.linux-edac,org.kernel.vger.linux-fbdev,org.kernel.vger.linux-gpio,org.kernel.vger.linux-hwmon,org.kernel.vger.linux-hyperv,org.kernel.vger.linux-ide,org.kernel.vger.linux-kernel,org.kernel.vger.linux-pci,org.kernel.vger.linux-perf-users,org.kernel.vger.linux-pm,org.kernel.vger.platform-driver-x86,org.xenproject.lists.xen-devel
Message-ID <[email protected]>
On 19.08.26 17:33, Sean Christopherson wrote:
> On Wed, Aug 19, 2026, Dave Hansen wrote:
>> Hey Juergen,
>>
>> These look great. Thanks for doing it!
>>
>> The only wonky thing is how we're going to actually merge it. We
>> obviously can't do patches 10-11 until all the "stop using" patches have
>> been applied.
>>
>> I obviously 100% realize that it's during the merge window, but any acks
>> that the maintainers of 5-9 provide in the next few weeks would be super
>> helpful. Or, if any of those maintainers want to cherry pick their
>> subsystem's stuff out of this series and apply it, that would be great too.
>>
>> But, the last time we did some MSR function munging, the tip tree
>> carried most of the patches. I would expect we'll have a repeat of that
>> here too. I'll pencil in the idea of just merging the lot around -rc1 time.
> 
> Note, patch 12 "treewide: convert rdmsrq() from a macro to an inline function"
> is going to conflict with the KVM changes for 7.3; kvm_access_xstate_msr() is
> getting moved from x86.c to msrs.c.  Somewhat surprisingly, AFAICT that's the
> only conflict with KVM's code movement, so it's probably not strictly required
> to send a new version after the KVM pull request?

I'm expecting some more conflicts especially for patches 10-12 before they are
merged. I'm more or less constantly rebasing locally. In case a conflict is
detected, I'll send a V3 after rc1.


Juergen
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