target/ppc: hpt on radix and compat migration fixes

[Qemu-devel] [QEMU-PPC] [PATCH 0/2] target/ppc: hpt on radix and compat migration fixes

Suraj Jitindar Singh posted 2 patches 6 years, 5 months ago

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git fetch https://github.com/patchew-project/qemu tags/patchew/20171124042325.28012-1-sjitindarsingh@gmail.com

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hw/ppc/spapr.c       | 4 ++--
target/ppc/machine.c | 4 +++-
2 files changed, 5 insertions(+), 3 deletions(-)

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[Qemu-devel] [QEMU-PPC] [PATCH 0/2] target/ppc: hpt on radix and compat migration fixes

Posted by Suraj Jitindar Singh 6 years, 5 months ago

The following patches fix 2 migration bugs.

The first being that migration of a hpt guest on a radix host currently
doesn't work. The first patch fixes this by installing the correct value
in patb_entry.

The second bug is that migration in a compat mode will currently result
in no compat mode actually being set on the receiving side. Fix this
by ensuring the compat_pvr is communicated to kvm.

The hpt on radix migration will require the host kernel to contain the patch:
KVM: PPC: Book3S HV: Fix migration and HPT resizing of HPT guests on radix hosts

Suraj Jitindar Singh (2):
  target/ppc: Move setting of patb_entry on hash table init
  target/ppc: Fix setting of cpu->compat_pvr on incoming migration

 hw/ppc/spapr.c       | 4 ++--
 target/ppc/machine.c | 4 +++-
 2 files changed, 5 insertions(+), 3 deletions(-)

-- 
2.13.6

Re: [Qemu-devel] [QEMU-PPC] [PATCH 0/2] target/ppc: hpt on radix and compat migration fixes

Posted by David Gibson 6 years, 5 months ago

On Fri, Nov 24, 2017 at 03:23:23PM +1100, Suraj Jitindar Singh wrote:
> The following patches fix 2 migration bugs.
> 
> The first being that migration of a hpt guest on a radix host currently
> doesn't work. The first patch fixes this by installing the correct value
> in patb_entry.
> 
> The second bug is that migration in a compat mode will currently result
> in no compat mode actually being set on the receiving side. Fix this
> by ensuring the compat_pvr is communicated to kvm.
> 
> The hpt on radix migration will require the host kernel to contain the patch:
> KVM: PPC: Book3S HV: Fix migration and HPT resizing of HPT guests on
> radix hosts

Applied to ppc-for-2.11.

> 
> Suraj Jitindar Singh (2):
>   target/ppc: Move setting of patb_entry on hash table init
>   target/ppc: Fix setting of cpu->compat_pvr on incoming migration
> 
>  hw/ppc/spapr.c       | 4 ++--
>  target/ppc/machine.c | 4 +++-
>  2 files changed, 5 insertions(+), 3 deletions(-)
> 

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