Re: please include KVM: PPC: Book3S HV: Save and restore FSCR in the P9 path

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On Wed, Jul 07, 2021 at 11:40:02PM -0700, Georgy Yakovlev wrote:
> Hi,
> 
> I'd like to propose the following patch for inclusion into 5.10 LTS
> 
> commit: 25edcc50d76c834479d11fcc7de46f3da4d95121
> subject: [PATCH] KVM: PPC: Book3S HV: Save and restore FSCR in the P9 path
> 
> Without this patch qemu does not work on POWER9 on modern glibc,
> so I think it should be included in at least 5.10 lts branch.
> 
> I cannot test on older LTS versions unfortunately, only 5.10.
> 
> Started Virtual Machine qemu-2-gentoo-ppc64-stable.
> Facility 'SCV' unavailable (12), exception at 0x7fff9f81d4b0, MSR=900000000280f033
> CPU 0/KVM[2914766]: illegal instruction (4) at 7fff9f81d4b0 nip 7fff9f81d4b0 lr 13e6048e0 code 1 in libc-2.33.so[7fff9f6f0000+200000]
> CPU 0/KVM[2914766]: code: e8010010 7c0803a6 4e800020 60420000 7ca42b78 4bffedb5 60000000 38210020
> CPU 0/KVM[2914766]: code: e8010010 7c0803a6 4e800020 60420000 <44000001> 4bffffb8 60000000 60420000

Now queued up, thanks.

greg k-h



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