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From: Christoffer Dall <cdall@linaro.org>
To: Andrew Jones <drjones@redhat.com>
Cc: marc.zyngier@arm.com, qemu-arm@nongnu.org, wu.wubin@huawei.com,
	kvmarm@lists.cs.columbia.edu
Subject: Re: [PATCH RFC 6/7] ARM64: KVM: Support heterogeneous system
Date: Wed, 15 Mar 2017 16:22:37 +0100	[thread overview]
Message-ID: <20170315152237.GR1277@cbox> (raw)
In-Reply-To: <20170315140633.jtultotyihql7qlr@kamzik.brq.redhat.com>

On Wed, Mar 15, 2017 at 03:06:33PM +0100, Andrew Jones wrote:
> On Wed, Mar 15, 2017 at 02:36:45PM +0100, Christoffer Dall wrote:
> > > If QEMU wants to know
> > > whether or not the host it's running on is heterogeneous, then
> > > it can just query sysfs, rather than ask KVM.
> > > 
> > 
> > Can it?  Is this information available in a reliable way from userspace?
> 
> I don't know much (anything) about it, but, afaict, yes. See
> https://lkml.org/lkml/2017/1/19/380
> 
> > > > I'm sure I missed some aspect of this discussion though.
> > > 
> > > Me too. As we discussed, it's probably time to try and hash out a fresh
> > > design doc. It'd be good to get a clear design agreed upon before
> > > returning to the patches.
> > > 
> > 
> > Yes, it's on my list.
> 
> I'm happy to help with this, even to take a stab at the first draft. Just
> let me know if you or Shannon prefer to do the draft yourselves. If you
> don't have a preference, then I can start working on it pretty soon.
> 
I'd be really happy for you to draft a new design doc, and I can review
in private or publicly first as you prefer.

Thanks,
-Christoffer

WARNING: multiple messages have this Message-ID (diff)
From: Christoffer Dall <cdall@linaro.org>
To: Andrew Jones <drjones@redhat.com>
Cc: marc.zyngier@arm.com, qemu-arm@nongnu.org, wu.wubin@huawei.com,
	kvmarm@lists.cs.columbia.edu
Subject: Re: [PATCH RFC 6/7] ARM64: KVM: Support heterogeneous system
Date: Wed, 15 Mar 2017 16:22:37 +0100	[thread overview]
Message-ID: <20170315152237.GR1277@cbox> (raw)
In-Reply-To: <20170315140633.jtultotyihql7qlr@kamzik.brq.redhat.com>

On Wed, Mar 15, 2017 at 03:06:33PM +0100, Andrew Jones wrote:
> On Wed, Mar 15, 2017 at 02:36:45PM +0100, Christoffer Dall wrote:
> > > If QEMU wants to know
> > > whether or not the host it's running on is heterogeneous, then
> > > it can just query sysfs, rather than ask KVM.
> > > 
> > 
> > Can it?  Is this information available in a reliable way from userspace?
> 
> I don't know much (anything) about it, but, afaict, yes. See
> https://lkml.org/lkml/2017/1/19/380
> 
> > > > I'm sure I missed some aspect of this discussion though.
> > > 
> > > Me too. As we discussed, it's probably time to try and hash out a fresh
> > > design doc. It'd be good to get a clear design agreed upon before
> > > returning to the patches.
> > > 
> > 
> > Yes, it's on my list.
> 
> I'm happy to help with this, even to take a stab at the first draft. Just
> let me know if you or Shannon prefer to do the draft yourselves. If you
> don't have a preference, then I can start working on it pretty soon.
> 
I'd be really happy for you to draft a new design doc, and I can review
in private or publicly first as you prefer.

Thanks,
-Christoffer
_______________________________________________
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https://lists.cs.columbia.edu/mailman/listinfo/kvmarm

  parent reply	other threads:[~2017-03-15 15:21 UTC|newest]

Thread overview: 60+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-16  9:33 [PATCH RFC 0/7] ARM64: KVM: Cross type vCPU support Shannon Zhao
2017-01-16  9:33 ` Shannon Zhao
2017-01-16  9:33 ` [PATCH RFC 1/7] ARM64: KVM: Add the definition of ID registers Shannon Zhao
2017-01-16  9:33   ` Shannon Zhao
2017-01-28 12:07   ` Andrew Jones
2017-01-28 12:07     ` Andrew Jones
2017-01-16  9:33 ` [PATCH RFC 2/7] ARM64: KVM: Add reset handlers for all " Shannon Zhao
2017-01-16  9:33   ` Shannon Zhao
2017-01-28 12:36   ` Andrew Jones
2017-01-28 12:36     ` Andrew Jones
2017-03-09 10:19   ` Christoffer Dall
2017-03-09 10:19     ` Christoffer Dall
2017-01-16  9:33 ` [PATCH RFC 3/7] ARM64: KVM: Reset ID registers when creating the VCPUs Shannon Zhao
2017-01-16  9:33   ` Shannon Zhao
2017-01-28 13:32   ` Andrew Jones
2017-01-28 13:32     ` Andrew Jones
2017-01-16  9:33 ` [PATCH RFC 4/7] ARM64: KVM: emulate accessing ID registers Shannon Zhao
2017-01-16  9:33   ` Shannon Zhao
2017-01-28 13:49   ` Andrew Jones
2017-01-28 13:49     ` [Qemu-arm] " Andrew Jones
2017-03-09 10:28   ` Christoffer Dall
2017-03-09 10:28     ` Christoffer Dall
2017-01-16  9:33 ` [PATCH RFC 5/7] ARM64: KVM: Support cross type vCPU Shannon Zhao
2017-01-16  9:33   ` Shannon Zhao
2017-01-28 14:47   ` Andrew Jones
2017-01-28 14:47     ` Andrew Jones
2017-03-09 10:56     ` Christoffer Dall
2017-03-09 10:56       ` Christoffer Dall
2017-01-16  9:33 ` [PATCH RFC 6/7] ARM64: KVM: Support heterogeneous system Shannon Zhao
2017-01-16  9:33   ` Shannon Zhao
2017-01-28 14:55   ` Andrew Jones
2017-01-28 14:55     ` Andrew Jones
2017-03-09 15:21     ` Suzuki K Poulose
2017-03-09 15:21       ` Suzuki K Poulose
2017-03-15 11:50     ` Christoffer Dall
2017-03-15 11:50       ` Christoffer Dall
2017-03-15 12:51       ` Andrew Jones
2017-03-15 12:51         ` Andrew Jones
2017-03-15 13:36         ` Christoffer Dall
2017-03-15 13:36           ` Christoffer Dall
2017-03-15 14:06           ` Andrew Jones
2017-03-15 14:06             ` Andrew Jones
2017-03-15 14:21             ` Peter Maydell
2017-03-15 14:21               ` [Qemu-arm] " Peter Maydell
2017-03-15 14:42               ` Andrew Jones
2017-03-15 14:42                 ` Andrew Jones
2017-03-15 14:49             ` Mark Rutland
2017-03-15 14:49               ` Mark Rutland
2017-03-15 15:22             ` Christoffer Dall [this message]
2017-03-15 15:22               ` Christoffer Dall
2017-03-15 15:32               ` Andrew Jones
2017-03-15 15:32                 ` Andrew Jones
2017-01-16  9:33 ` [PATCH RFC 7/7] ARM64: KVM: Add user set handler for id_aa64mmfr0_el1 Shannon Zhao
2017-01-16  9:33   ` Shannon Zhao
2017-01-28 15:22   ` Andrew Jones
2017-01-28 15:22     ` Andrew Jones
2017-03-09 12:52   ` Christoffer Dall
2017-03-09 12:52     ` Christoffer Dall
2017-03-09 15:03     ` Mark Rutland
2017-03-09 15:03       ` Mark Rutland

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