Hello Satheesh, On 4/29/19 10:05 AM, Satheesh Rajendran wrote: > On Wed, Apr 10, 2019 at 07:04:32PM +0200, Cédric Le Goater wrote: >> Hello, >> >> GitHub trees available here : >> >> QEMU sPAPR: >> >> https://github.com/legoater/qemu/commits/xive-next >> >> Linux/KVM: >> >> https://github.com/legoater/linux/commits/xive-5.1 > > Hi, > > Xive(both ic-mode=dual and ic-mode=xive) guest fails to boot with > guest memory > 64G, till 64G it boots fine. > > Note: xics(ic-mode=xics) guest with the same configuration boots fine Indeed. The guest hangs because IPIs are not correctly received. The guest sees the EQ page as being filled with zeroes and discards the interrupt whereas the host, KVM and QEMU, sees the correct entries. I haven't spotted anything bizarre from guest side. Do we have a 64GB frontier somewhere in KVM ? Thanks, C.
