On Wed, May 07, 2025 at 10:09:46PM +0200, Rafael J. Wysocki wrote: > On Wed, May 7, 2025 at 8:22 PM Roman Kisel <romank@xxxxxxxxxxxxxxxxxxx> wrote: > > > > When starting APs, confidential guests and paravisor guests > > need to know the CPU number, and the pattern of using the linear > > search has emerged in several places. With N processors that leads > > to the O(N^2) time complexity. > > > > Provide the CPU number in the AP wake up callback so that one can > > get the CPU number in constant time. > > > > Suggested-by: Michael Kelley <mhklinux@xxxxxxxxxxx> > > Signed-off-by: Roman Kisel <romank@xxxxxxxxxxxxxxxxxxx> > > Reviewed-by: Tom Lendacky <thomas.lendacky@xxxxxxx> > > Reviewed-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> > > Reviewed-by: Michael Kelley <mhklinux@xxxxxxxxxxx> > > For the ACPI bits > > Acked-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx> > > and I'm assuming that the x86 folks will take care of this. > Thank you Rafael. I will take this patch via the hyperv-next tree.