Greg Kurz efe5ddcae4 KVM: PPC: Book3S HV: XIVE: Allow userspace to set the # of VPs ... Add a new attribute to both XIVE and XICS-on-XIVE KVM devices so that userspace can tell how many interrupt servers it needs. If a VM needs less than the current default of KVM_MAX_VCPUS (2048), we can allocate less VPs in OPAL. Combined with a core stride (VSMT) that matches the number of guest threads per core, this may substantially increases the number of VMs that can run concurrently with an in-kernel XIVE device. Since the legacy XIVE KVM device is exposed to userspace through the XICS KVM API, a new attribute group is added to it for this purpose. While here, fix the syntax of the existing KVM_DEV_XICS_GRP_SOURCES in the XICS documentation. Signed-off-by: Greg Kurz <groug@kaod.org> Reviewed-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Paul Mackerras <paulus@ozlabs.org>		2019-10-22 16:29:02 +11:00
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asm	KVM: PPC: Book3S HV: XIVE: Allow userspace to set the # of VPs	2019-10-22 16:29:02 +11:00