On Tue, May 05, 2015 at 05:22:52PM +1000, David Gibson wrote: > On Fri, Apr 24, 2015 at 12:17:40PM +0530, Bharata B Rao wrote: > > When supporting CPU hot removal by parking the vCPU fd and reusing > > it during hotplug again, there can be cases where we try to reenable > > KVM_CAP_IRQ_XICS CAP for the vCPU for which it was already enabled. > > Introduce a boolean member in ICPState to track this and don't > > reenable the CAP if it was already enabled earlier. > > > > This change allows CPU hot removal to work for sPAPR. > > > > Signed-off-by: Bharata B Rao <bhar...@linux.vnet.ibm.com> > > Do you actually need this? Is there any harm in setting the > capability multiple times, or could you just ignore the "already set" > error?
We discussed this last time and concluded that this patch is needed. Ref: http://lists.nongnu.org/archive/html/qemu-devel/2015-03/msg05361.html Regards, Bharata.