[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH] tools/hvmloader: Don't perform AML hotplug debugging in production
On Mon, Mar 30, 2015 at 04:30:01PM +0100, Andrew Cooper wrote: > On 30/03/15 16:22, Konrad Rzeszutek Wilk wrote: > > On Mon, Mar 30, 2015 at 03:20:19PM +0100, Andrew Cooper wrote: > >> It is number of vmexits and a moderate quantity of qemu logging which can > >> safely be avoided when not specifically debugging a PCI hotplug issue. > > Could we just make qemu-X not include this data when the we > > run in production? And in the field if this needs to be diagnosed > > we can just pass in an extra flag to QEMU and it would do it? > > What do we not include? This is data which gets bundled into hvmloader > itself. > > A little while ago, I proposed a different solution: > > http://lists.xen.org/archives/html/xen-devel/2014-01/msg01526.html .. in which I proposed an path that you had choosen in this patch. > > which allowed this to all be controlled at runtime. The important point > is to avoid the vmexits if not needed, rather than to simply ignore the > debugging they are giving. <nods> I know I've been using this in the field (so no need to deploy a new build) - but then eventually I had to build an custom Xen binary. Anyhow thank you for refreshing my memory on this patchset. and in regards to the patch: Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> > > ~Andrew _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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