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Re: [Qemu-ppc] [PATCH 0/5] ppc: Improve sPAPR CPU compatibility mode set
From: |
David Gibson |
Subject: |
Re: [Qemu-ppc] [PATCH 0/5] ppc: Improve sPAPR CPU compatibility mode settings |
Date: |
Wed, 8 Jun 2016 11:11:18 +1000 |
User-agent: |
Mutt/1.6.1 (2016-04-27) |
On Tue, Jun 07, 2016 at 05:39:35PM +0200, Thomas Huth wrote:
> If a guest currently only requests PowerISA 2.07 compatiblity mode with
> the "ibm,client-architecture-support" firmware call, but does not
> specify a matching real PVR for the host CPU on a POWER8 host,
> it ends up in POWER7 / PowerISA 2.06 compatibility mode since QEMU
> does not support 2.07 compatibility mode yet. This currently happens
> when running a Linux guest on a POWER8NVL host, since Linux guests
> do not use the PVR for these CPUs for the "ibm,client-architecture-
> support" call yet (but I submitted a patch for the kernel to fix this
> issue there last week, so the support should soon be there, too).
>
> Anyway, QEMU should also support a proper 2.07 compatibility mode
> if the host CPU can do it. So this patch series introduces such a
> mode and does some clean-ups and other fixes along the way (e.g.
> it splits the ambiguous pcr_mask setting into two variables, one
> for defining the valid bits in the PCR register, and one for
> storing the valid ISA levels).
>
> Thomas Huth (5):
> ppc/spapr: Refactor h_client_architecture_support() CPU parsing code
> ppc: Split pcr_mask settings into supported bits and the register mask
> ppc: Provide function to get CPU class of the host CPU
> ppc: Improve PCR bit selection in ppc_set_compat()
> ppc: Add PowerISA 2.07 compatibility mode
>
> hw/ppc/spapr_hcall.c | 63
> +++++++++++++++++++++++++++------------------
> target-ppc/cpu-qom.h | 3 ++-
> target-ppc/cpu.h | 1 +
> target-ppc/kvm.c | 19 ++++++++++----
> target-ppc/kvm_ppc.h | 7 +++++
> target-ppc/translate_init.c | 22 +++++++++++-----
> 6 files changed, 78 insertions(+), 37 deletions(-)
Applied to ppc-for-2.7, thanks.
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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- [Qemu-ppc] [PATCH 1/5] ppc/spapr: Refactor h_client_architecture_support() CPU parsing code, (continued)
[Qemu-ppc] [PATCH 5/5] ppc: Add PowerISA 2.07 compatibility mode, Thomas Huth, 2016/06/07
Re: [Qemu-ppc] [PATCH 0/5] ppc: Improve sPAPR CPU compatibility mode settings,
David Gibson <=