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Re: [Qemu-devel] [Qemu-ppc] [PATCH 4/5] target-ppc: Synchronize FPU stat
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From: |
Peter Maydell |
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Subject: |
Re: [Qemu-devel] [Qemu-ppc] [PATCH 4/5] target-ppc: Synchronize FPU state with KVM |
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Date: |
Wed, 23 Jan 2013 22:16:59 +0000 |
On 23 January 2013 22:05, David Gibson <address@hidden> wrote:
> On Wed, Jan 23, 2013 at 11:56:04AM -0600, Scott Wood wrote:
>> I don't see where you check a capability, so users of pre-one-reg
>> KVM now get (at least) 33 warning messages every time context gets
>> synchronized?
>
> Given that a bunch of important state is missing from that
> synchronization, I think a slew of warnings is entirely appropriate.
> There are no per-register capabilities so there's nothing we can check
> here.
FWIW, I think the correct way to detect whether KVM_GET/SET_ONE_REG
supports a particular register or set of registers is to use
KVM_GET_REG_LIST. I don't know if PPC KVM implements that ioctl yet,
though (it may be new with ARM KVM's extensive use of GET/SET_ONE_REG).
-- PMM
[Qemu-devel] [PATCH 5/5] target-ppc: Synchronize VPA state with KVM, David Gibson, 2013/01/23
[Qemu-devel] [PATCH 3/5] target-ppc: Synchronize more SPRs to KVM using ONE_REG interface, David Gibson, 2013/01/23
[Qemu-devel] [PATCH 2/5] pseries: Improve handling of multiple PCI host bridges, David Gibson, 2013/01/23