On Mon, Oct 06, 2014 at 03:55:49PM +0200, Paolo Bonzini wrote:
> Il 06/10/2014 15:52, Michael S. Tsirkin ha scritto:
> > Maybe we should just modify ACPI and rom files in general to use
> > something else, not RAM?
> > It looked like a good fit initially so we went ahead with it,
> > but these thin
On Mon, Oct 06, 2014 at 03:42:01PM +0200, Paolo Bonzini wrote:
> Il 02/10/2014 15:49, Michael S. Tsirkin ha scritto:
> >>> The issue is that incoming migration might have a different
> >>> fw_cfg size from what we have.
> >>
> >> Understood now.
> >>
> >>> I think migrating this value will solve th
Il 06/10/2014 15:52, Michael S. Tsirkin ha scritto:
> Maybe we should just modify ACPI and rom files in general to use
> something else, not RAM?
> It looked like a good fit initially so we went ahead with it,
> but these things are fairly small, so it's not a problem to
> migrate them as part of t
Il 02/10/2014 15:49, Michael S. Tsirkin ha scritto:
>>> The issue is that incoming migration might have a different
>>> fw_cfg size from what we have.
>>
>> Understood now.
>>
>>> I think migrating this value will solve the issue in a cleaner way.
>>
>> Perhaps. The question is whether it would co
On Thu, Oct 02, 2014 at 03:43:35PM +0200, Paolo Bonzini wrote:
> Il 02/10/2014 15:41, Michael S. Tsirkin ha scritto:
> > On Thu, Oct 02, 2014 at 03:30:57PM +0200, Paolo Bonzini wrote:
> >> These patches do fix John's scenario, but that is not the main issue.
> >> They are not an _attempt_ to fix it
Il 02/10/2014 15:41, Michael S. Tsirkin ha scritto:
> On Thu, Oct 02, 2014 at 03:30:57PM +0200, Paolo Bonzini wrote:
>> These patches do fix John's scenario, but that is not the main issue.
>> They are not an _attempt_ to fix it, they just do so more or less by
>> chance. Their real purpose is fix
On Thu, Oct 02, 2014 at 03:30:57PM +0200, Paolo Bonzini wrote:
> Il 02/10/2014 14:11, Michael S. Tsirkin ha scritto:
> > Summarizing what you say, there are two issues around ACPI tables:
> > - linuxboot uses FW CFG to for memory allocations,
> > seabios ignores that, so they might conflict.
> >
Il 02/10/2014 14:11, Michael S. Tsirkin ha scritto:
> Summarizing what you say, there are two issues around ACPI tables:
> - linuxboot uses FW CFG to for memory allocations,
> seabios ignores that, so they might conflict.
> Let's fix either linuxboot or seabios (or both!)
> and forget about i
Il 02/10/2014 14:11, Michael S. Tsirkin ha scritto:
> On Thu, Sep 18, 2014 at 06:17:48PM +0200, Paolo Bonzini wrote:
>> In the emergency last-minute patches of QEMU 2.1 we did two things:
>>
>> - fixed migration problems from 1.7 or 2.0 to 2.1 due to changes in
>> ACPI table sizes
>>
>> - ensured
On Thu, Sep 18, 2014 at 06:17:48PM +0200, Paolo Bonzini wrote:
> In the emergency last-minute patches of QEMU 2.1 we did two things:
>
> - fixed migration problems from 1.7 or 2.0 to 2.1 due to changes in
> ACPI table sizes
>
> - ensured that future versions will not break migration compatibili
Il 19/09/2014 09:36, Gerd Hoffmann ha scritto:
> Hi,
>
>> However, there is another problem. As the ACPI tables grow, we need
>> to move the address at which linuxboot.bin loads the initrd. This
>> address is placed close to the end of memory, but it is QEMU that
>> tells linuxboot.bin where e
Il 19/09/2014 09:36, Gerd Hoffmann ha scritto:
> Hmm. That assumes we are running seabios, where we know how much memory
> we actually need.
Right. However, note that this only affects one patch in the series
(patch 3). Patches 1-2 are useful to unify Xen-specific behavior with
other hypervisor
Hi,
> However, there is another problem. As the ACPI tables grow, we need
> to move the address at which linuxboot.bin loads the initrd. This
> address is placed close to the end of memory, but it is QEMU that
> tells linuxboot.bin where exactly the initrd is to be loaded. And
> QEMU cannot r
In the emergency last-minute patches of QEMU 2.1 we did two things:
- fixed migration problems from 1.7 or 2.0 to 2.1 due to changes in
ACPI table sizes
- ensured that future versions will not break migration compatibility
with 2.2 for reasonable configurations (with ACPI tables smaller
tha
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