Thread (4 messages) 4 messages, 2 authors, 2020-07-27

Re: [PATCH] KVM: PPC: Book3S HV: increase KVMPPC_NR_LPIDS on POWER8 and POWER9

From: Paul Mackerras <hidden>
Date: 2020-07-23 06:23:16
Also in: kvm

On Mon, Jun 08, 2020 at 01:57:14PM +0200, Cédric Le Goater wrote:
POWER8 and POWER9 have 12-bit LPIDs. Change LPID_RSVD to support up to
(4096 - 2) guests on these processors. POWER7 is kept the same with a
limitation of (1024 - 2), but it might be time to drop KVM support for
POWER7.

Tested with 2048 guests * 4 vCPUs on a witherspoon system with 512G
RAM and a bit of swap.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Thanks, patch applied to my kvm-ppc-next branch.

Paul.
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