Hi James,
-----Original Message----- From: Salil Mehta via Linaro-open-discussions [mailto:linaro-open-discussions@op-lists.linaro.org] Sent: Wednesday, August 31, 2022 2:01 PM To: James Morse james.morse@arm.com; gankulkarni@os.amperecomputing.com Cc: linaro-open-discussions@op-lists.linaro.org; Lorenzo Pieralisi lorenzo.pieralisi@linaro.org Subject: [Linaro-open-discussions] Re: ARM64 virt CPU HP - plan
HI James,
From: James Morse [mailto:james.morse@arm.com] Sent: Wednesday, August 31, 2022 1:52 PM To: Salil Mehta salil.mehta@huawei.com; gankulkarni@os.amperecomputing.com Cc: linaro-open-discussions@op-lists.linaro.org; Lorenzo Pieralisi lorenzo.pieralisi@linaro.org; Jonathan Cameron jonathan.cameron@huawei.com; mehta.salil.lnk@gmail.com Subject: Re: [Linaro-open-discussions] Re: ARM64 virt CPU HP - plan
Hi Salil,
On 31/08/2022 09:19, Salil Mehta wrote:
Hi Ganpat, I have to forward port the patches to the latest QEMU and then sanity test before I can share the code. There are lots of changes which have trickled into the QEmu which have caused conflicts. I am reviewing them carefully
to
ensure we don't end up debugging something unnecessary as it will waste everyone's time and duplicate the efforts. Once this is done I will do the sanity testing along with James repository.
Ideally, I should be able to share the code by COB tomorrow if I find no blockers during testing (which I do not see as of now).
Beware the WFI in user-space support that is needed for implementing CPU_SUSPEND is a little different from the previous version. From memory the change is how the vCPU gets restarted....
I see. thanks for sharing this info. It might be helpful if you have reference to lore.kernel patches where it got changed?
Aah, got it. Perhaps this patch? Yes, I can see what you mean.
[RFC PATCH 2/5] KVM: arm64: Move WFI execution to check_vcpu_requests() https://lore.kernel.org/kvm/20210608154805.216869-1-jean-philippe@linaro.org...
Thanks Salil.