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Re: [Qemu-devel] [RFC][PATCH 14/16] kvm: x86: Add user space part for in
From: |
Jan Kiszka |
Subject: |
Re: [Qemu-devel] [RFC][PATCH 14/16] kvm: x86: Add user space part for in-kernel i8259 |
Date: |
Mon, 05 Dec 2011 12:37:37 +0100 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.8.1.12) Gecko/20080226 SUSE/2.0.0.12-1.1 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666 |
On 2011-12-05 11:01, Avi Kivity wrote:
> On 12/04/2011 11:38 PM, Jan Kiszka wrote:
>>>
>>> It should be also possible to migrate from non-KVM device to KVM
>>> version, different names would prevent that for ever.
>>
>> It is (theoretically) possible with these patches as the vmstate names
>> are the same. KVM to TCG migration does not work right now, so I was
>> only able to test in-kernel <-> user space irqchip model migrations.
>
> btw, for the next-gen migration protocol, we'd probably be using QOM
> paths, not vmstate names; the QOM paths would include the device name?
That would be a very bad idea IMHO. Every refactoring of your device
tree, e.g. to model CPU hotplug and the ICC bus more accurately, would
risk to create a migration crack. At least we would need some stable
naming and/or alias concept then.
Jan
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- Re: [Qemu-devel] [RFC][PATCH 14/16] kvm: x86: Add user space part for in-kernel i8259, (continued)
- Re: [Qemu-devel] [RFC][PATCH 14/16] kvm: x86: Add user space part for in-kernel i8259, Avi Kivity, 2011/12/04
- Re: [Qemu-devel] [RFC][PATCH 14/16] kvm: x86: Add user space part for in-kernel i8259, Jan Kiszka, 2011/12/04
- Re: [Qemu-devel] [RFC][PATCH 14/16] kvm: x86: Add user space part for in-kernel i8259, Avi Kivity, 2011/12/04
- Re: [Qemu-devel] [RFC][PATCH 14/16] kvm: x86: Add user space part for in-kernel i8259, Jan Kiszka, 2011/12/04
- Re: [Qemu-devel] [RFC][PATCH 14/16] kvm: x86: Add user space part for in-kernel i8259, Avi Kivity, 2011/12/04
- Re: [Qemu-devel] [RFC][PATCH 14/16] kvm: x86: Add user space part for in-kernel i8259, Jan Kiszka, 2011/12/04
- Re: [Qemu-devel] [RFC][PATCH 14/16] kvm: x86: Add user space part for in-kernel i8259, Avi Kivity, 2011/12/04
- Re: [Qemu-devel] [RFC][PATCH 14/16] kvm: x86: Add user space part for in-kernel i8259, Blue Swirl, 2011/12/04
- Re: [Qemu-devel] [RFC][PATCH 14/16] kvm: x86: Add user space part for in-kernel i8259, Jan Kiszka, 2011/12/04
- Re: [Qemu-devel] [RFC][PATCH 14/16] kvm: x86: Add user space part for in-kernel i8259, Avi Kivity, 2011/12/05
- Re: [Qemu-devel] [RFC][PATCH 14/16] kvm: x86: Add user space part for in-kernel i8259,
Jan Kiszka <=
- Re: [Qemu-devel] [RFC][PATCH 14/16] kvm: x86: Add user space part for in-kernel i8259, Avi Kivity, 2011/12/05
- Re: [Qemu-devel] [RFC][PATCH 14/16] kvm: x86: Add user space part for in-kernel i8259, Jan Kiszka, 2011/12/05
- Re: [Qemu-devel] [RFC][PATCH 14/16] kvm: x86: Add user space part for in-kernel i8259, Avi Kivity, 2011/12/05
- Re: [Qemu-devel] [RFC][PATCH 14/16] kvm: x86: Add user space part for in-kernel i8259, Jan Kiszka, 2011/12/05
- Re: [Qemu-devel] [RFC][PATCH 14/16] kvm: x86: Add user space part for in-kernel i8259, Avi Kivity, 2011/12/05
- Re: [Qemu-devel] [RFC][PATCH 14/16] kvm: x86: Add user space part for in-kernel i8259, Jan Kiszka, 2011/12/05
[Qemu-devel] [RFC][PATCH 12/16] kvm: x86: Establish IRQ0 override control, Jan Kiszka, 2011/12/03
[Qemu-devel] [RFC][PATCH 09/16] ioapic: Factor out core for KVM reuse, Jan Kiszka, 2011/12/03
[Qemu-devel] [RFC][PATCH 06/16] i8259: Factor out core for KVM reuse, Jan Kiszka, 2011/12/03
[Qemu-devel] [RFC][PATCH 13/16] kvm: x86: Add user space part for in-kernel APIC, Jan Kiszka, 2011/12/03