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Re: [Qemu-devel] [PATCH RFC V3 1/4] Use Aff1 with mpidr This is an impro
From: |
Pavel Fedin |
Subject: |
Re: [Qemu-devel] [PATCH RFC V3 1/4] Use Aff1 with mpidr This is an improved and KVM-aware alternative to |
Date: |
Mon, 08 Jun 2015 10:50:28 +0300 |
> I think it would be less confusing to store the entire MPIDR
> here, and then mask it out if there are places that only
> want the affinity bits.
I thought about it when i developed this, but in my implementation affinity
bits are assigned during CPU instantiation, while feature bits can be added
later, during realize. I could tweak set_feature() to sync up MPIDR value but
perhaps it isn't the best thing to do.
Additionally, currently we support only ARM_FEATURE_V7MP, which is 32-bit
only. I believe this would be a more complex modification which would touch
more of 32-bit code.
So would it be acceptable to leave mpidr handling as it is?
Kind regards,
Pavel Fedin
Expert Engineer
Samsung Electronics Research center Russia
- [Qemu-devel] [PATCH RFC V3 0/4] Implement GIC-500 from GICv3 family for arm64, Shlomo Pongratz, 2015/06/04
- [Qemu-devel] [PATCH RFC V3 1/4] Use Aff1 with mpidr This is an improved and KVM-aware alternative to, Shlomo Pongratz, 2015/06/04
- Re: [Qemu-devel] [PATCH RFC V3 1/4] Use Aff1 with mpidr This is an improved and KVM-aware alternative to, Peter Maydell, 2015/06/04
- Re: [Qemu-devel] [PATCH RFC V3 1/4] Use Aff1 with mpidr This is an improved and KVM-aware alternative to,
Pavel Fedin <=
- Re: [Qemu-devel] [PATCH RFC V3 1/4] Use Aff1 with mpidr This is an improved and KVM-aware alternative to, Peter Maydell, 2015/06/08
- Re: [Qemu-devel] [PATCH RFC V3 1/4] Use Aff1 with mpidr This is an improved and KVM-aware alternative to, Pavel Fedin, 2015/06/08
- Re: [Qemu-devel] [PATCH RFC V3 1/4] Use Aff1 with mpidr This is an improved and KVM-aware alternative to, Peter Maydell, 2015/06/08
- Re: [Qemu-devel] [PATCH RFC V3 1/4] Use Aff1 with mpidr This is an improved and KVM-aware alternative to, Igor Mammedov, 2015/06/08
- Re: [Qemu-devel] [PATCH RFC V3 1/4] Use Aff1 with mpidr This is an improved and KVM-aware alternative to, Igor Mammedov, 2015/06/08
[Qemu-devel] [PATCH RFC V3 3/4] GICv3 support, Shlomo Pongratz, 2015/06/04
[Qemu-devel] [PATCH RFC V3 4/4] Add virt-v3 machine that uses GIC-500, Shlomo Pongratz, 2015/06/04
[Qemu-devel] [PATCH RFC V3 2/4] Implment GIC-500, Shlomo Pongratz, 2015/06/04