Re: [Xen-devel] [PATCH] qemu-xen: free all the pirqs for msi/msix when driver unload

[DuanZhenzhong <zhenzhong.duan@xxxxxxxxxx>]

Stefano Stabellini wrote:
> On Mon, 1 Jul 2013, Zhenzhong Duan wrote:
>   
> > Pirqs are not freed when driver unload, then new pirqs are allocated when
> > driver reload. This could exhaust pirqs if do it in a loop.
> >
> > This patch fixes the bug by freeing pirqs when ENABLE bit is cleared in
> > msi/msix control reg.
> >
> > There is also other way of fixing it such as reuse pirqs between driver reload,
> > but this way is better.
> > Xen-devel: http://marc.info/?l=xen-devel&m=136800120304275&w=2
> >
> > Signed-off-by: Zhenzhong Duan <zhenzhong.duan@xxxxxxxxxx>
> >     
> It looks OK to me, I'll have to trust you to have tested this patch
> properly too.
>   
Not yet, it just passed build test.
Pls hold off until I got permit to override the 4.1.30-OVM test env with 
upstream things and test.
Or is there some way of testing with 4.1.30-OVM + qemu-system-i386 ?

zduan

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