On 29/06/15 18:38, Peter Maydell wrote:
> On 29 June 2015 at 18:30, Marc Zyngier <marc.zyng...@arm.com> wrote:
>> On 29/06/15 18:13, Chalamarla, Tirumalesh wrote:
>>> Will this also prevents migrating between same implementations,
>>> if no how is this identified.
>>
>> This shouldn't. It is pretty easy to look at the incoming guest's MIDR,
>> and verify that it matches the default MIDR on the receiving system. Any
>> difference, and the migration should abort.
>
> Do you really want to forbid migration between (say)
> Cortex-A57 r3p0 and Cortex-A57 r3p1 ?
>
> That seems pretty harsh.
I think we may need to allow for some flexibility (same major version
only, or +/- 1 minor version...). The idea I'm trying to convey is that
with "generic CPI", migration is not guaranteed unless we're on
extremely similar hardware.
M.
--
Jazz is not dead. It just smells funny...
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