Re: [PATCH 08/13] xen/pvticketlock: disable interrupts while blocking

[Jeremy Fitzhardinge]

On 09/06/2011 11:27 AM, Don Zickus wrote:
>> But on the other hand, I don't really care if you can say that this path
>> will never be called in a virtual machine.
> Does virtual machines support hot remove of cpus?  Probably not
> considering bare-metal barely supports it.

The only reason you'd want to is to add/remove VCPUs as a mechanism of
resource control, so if you were removing a VCPU it wouldn't matter much
which one you choose.  In other words, there's no reason you'd ever need
to remove the BSP in favour of one of the other CPUs.

Anyway, I'm not going to lose any sleep over this issue.

    J
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/