Re: [Qemu-devel] [PATCH v2] ppc: Force CPU threads count to be a power of 2.

[Bharata B Rao <bharata@linux.vnet.ibm.com>]

On Wed, Mar 05, 2014 at 06:59:29AM -0700, Eric Blake wrote:
> On 03/05/2014 01:32 AM, Bharata B Rao wrote:
> > PowerPC kernel expects the number of SMT threads in a core to be a power
> > of 2. Since QEMU doesn't enforce this, it leads to an early guest kernel
> > crash if invalid threads count is specified.
> > 
> > Prevent this crash and make it a graceful exit from QEMU itself by
> > validating the user supplied threads count.
> > 
> > Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
> > ---
> > Changes in v2: Use is_power_of_2() from QEMU itself instead of depending
> > on libm.
> > v1: https://lists.gnu.org/archive/html/qemu-devel/2014-03/msg00660.html
> > v0: https://lists.gnu.org/archive/html/qemu-devel/2014-03/msg00355.html
> 
> Reviewed-by: Eric Blake <eblake@redhat.com>

> Reviewed-by: Stewart Smith <stewart@linux.vnet.ibm.com>

Alexander/Andreas,

Could you take this patch into your tree ?

Regards,
Bharata.