From: Scott Wood <scottwood@freescale.com>
To: Alexander Graf <agraf@suse.de>
Cc: kvm-ppc@vger.kernel.org, KVM list <kvm@vger.kernel.org>
Subject: Re: [PATCH 4/4] KVM: PPC: BookE: Add EPR ONE_REG sync
Date: Fri, 04 Jan 2013 23:03:03 +0000 [thread overview]
Message-ID: <1357340583.666.21@snotra> (raw)
In-Reply-To: <FBE9532C-773C-4F47-AF7D-68C33A6DCEB1@suse.de> (from agraf@suse.de on Fri Jan 4 16:55:34 2013)
On 01/04/2013 04:55:34 PM, Alexander Graf wrote:
>
> On 04.01.2013, at 21:08, Scott Wood wrote:
>
> > On 01/04/2013 11:36:40 AM, Alexander Graf wrote:
> >> We need to be able to read and write the contents of the EPR
> register
> >> from user space.
> >> This patch implements that logic through the ONE_REG API and
> declares
> >> its (never implemented) SREGS counterpart as deprecated.
> >
> > QEMU already uses SREGS to read this... I'm not sure what happened
> on the KVM side.
>
> Since it's never been implemented on the KVM side, I don't see why
> it'd be an issue to force ONE_REG on any user :). In the long run,
> I'd like to move as much of the state synchronization to ONE_REG.
That's fine -- but we should make sure not to forget to update QEMU.
-Scott
WARNING: multiple messages have this Message-ID (diff)
From: Scott Wood <scottwood@freescale.com>
To: Alexander Graf <agraf@suse.de>
Cc: <kvm-ppc@vger.kernel.org>, KVM list <kvm@vger.kernel.org>
Subject: Re: [PATCH 4/4] KVM: PPC: BookE: Add EPR ONE_REG sync
Date: Fri, 4 Jan 2013 17:03:03 -0600 [thread overview]
Message-ID: <1357340583.666.21@snotra> (raw)
In-Reply-To: <FBE9532C-773C-4F47-AF7D-68C33A6DCEB1@suse.de> (from agraf@suse.de on Fri Jan 4 16:55:34 2013)
On 01/04/2013 04:55:34 PM, Alexander Graf wrote:
>
> On 04.01.2013, at 21:08, Scott Wood wrote:
>
> > On 01/04/2013 11:36:40 AM, Alexander Graf wrote:
> >> We need to be able to read and write the contents of the EPR
> register
> >> from user space.
> >> This patch implements that logic through the ONE_REG API and
> declares
> >> its (never implemented) SREGS counterpart as deprecated.
> >
> > QEMU already uses SREGS to read this... I'm not sure what happened
> on the KVM side.
>
> Since it's never been implemented on the KVM side, I don't see why
> it'd be an issue to force ONE_REG on any user :). In the long run,
> I'd like to move as much of the state synchronization to ONE_REG.
That's fine -- but we should make sure not to forget to update QEMU.
-Scott
next prev parent reply other threads:[~2013-01-04 23:03 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-04 17:36 [PATCH 0/4] KVM: PPC: BookE: Add EPR user space support Alexander Graf
2013-01-04 17:36 ` Alexander Graf
2013-01-04 17:36 ` [PATCH 1/4] KVM: PPC: BookE: Allow irq deliveries to inject requests Alexander Graf
2013-01-04 17:36 ` Alexander Graf
2013-01-04 19:40 ` Scott Wood
2013-01-04 19:40 ` Scott Wood
2013-01-04 23:02 ` Alexander Graf
2013-01-04 23:02 ` Alexander Graf
2013-01-04 17:36 ` [PATCH 2/4] KVM: PPC: BookE: Emulate mfspr on EPR Alexander Graf
2013-01-04 17:36 ` Alexander Graf
2013-01-04 19:50 ` Scott Wood
2013-01-04 19:50 ` Scott Wood
2013-01-04 23:11 ` Alexander Graf
2013-01-04 23:11 ` Alexander Graf
2013-01-04 17:36 ` [PATCH 3/4] KVM: PPC: BookE: Implement EPR exit Alexander Graf
2013-01-04 17:36 ` Alexander Graf
2013-01-04 20:19 ` Scott Wood
2013-01-04 20:19 ` Scott Wood
2013-01-04 17:36 ` [PATCH 4/4] KVM: PPC: BookE: Add EPR ONE_REG sync Alexander Graf
2013-01-04 17:36 ` Alexander Graf
2013-01-04 20:08 ` Scott Wood
2013-01-04 20:08 ` Scott Wood
2013-01-04 22:55 ` Alexander Graf
2013-01-04 22:55 ` Alexander Graf
2013-01-04 23:03 ` Scott Wood [this message]
2013-01-04 23:03 ` Scott Wood
2013-01-04 23:06 ` Alexander Graf
2013-01-04 23:06 ` Alexander Graf
2013-01-04 23:41 ` [PATCH 0/4] KVM: PPC: BookE: Add EPR user space support v2 Alexander Graf
2013-01-04 23:41 ` Alexander Graf
2013-01-04 23:41 ` [PATCH 1/4] KVM: PPC: BookE: Allow irq deliveries to inject requests Alexander Graf
2013-01-04 23:41 ` Alexander Graf
2013-01-04 23:41 ` [PATCH 2/4] KVM: PPC: BookE: Emulate mfspr on EPR Alexander Graf
2013-01-04 23:41 ` Alexander Graf
2013-01-04 23:41 ` [PATCH 3/4] KVM: PPC: BookE: Implement EPR exit Alexander Graf
2013-01-04 23:41 ` Alexander Graf
2013-01-07 17:47 ` Scott Wood
2013-01-07 17:47 ` Scott Wood
2013-01-07 17:50 ` Alexander Graf
2013-01-07 17:50 ` Alexander Graf
2013-01-04 23:41 ` [PATCH 4/4] KVM: PPC: BookE: Add EPR ONE_REG sync Alexander Graf
2013-01-04 23:41 ` Alexander Graf
2013-01-07 19:38 ` [PATCH 0/4] KVM: PPC: BookE: Add EPR user space support v3 Alexander Graf
2013-01-07 19:38 ` Alexander Graf
2013-01-07 19:38 ` [PATCH 1/4] KVM: PPC: BookE: Allow irq deliveries to inject requests Alexander Graf
2013-01-07 19:38 ` Alexander Graf
2013-01-07 19:38 ` [PATCH 2/4] KVM: PPC: BookE: Emulate mfspr on EPR Alexander Graf
2013-01-07 19:38 ` Alexander Graf
2013-01-07 19:38 ` [PATCH 3/4] KVM: PPC: BookE: Implement EPR exit Alexander Graf
2013-01-07 19:38 ` Alexander Graf
2013-01-07 19:39 ` [PATCH 4/4] KVM: PPC: BookE: Add EPR ONE_REG sync Alexander Graf
2013-01-07 19:39 ` Alexander Graf
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