Re: [PATCH v4 2/6] hw/arm/virt: Add a control for the the highmem redistributors

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, 10 Jan 2022 15:47:47 +0000,
Peter Maydell <peter.maydell@xxxxxxxxxx> wrote:
> 
> On Mon, 10 Jan 2022 at 15:45, Marc Zyngier <maz@xxxxxxxxxx> wrote:
> > $ /home/maz/vminstall/qemu-hack -m 1G -smp 256 -cpu host -machine virt,accel=kvm,gic-version=3,highmem=on -nographic -drive if=pflash,format=raw,readonly=on,file=/usr/share/AAVMF/AAVMF_CODE.fd
> > qemu-hack: warning: Number of SMP cpus requested (256) exceeds the recommended cpus supported by KVM (8)
> > qemu-hack: warning: Number of hotpluggable cpus requested (256) exceeds the recommended cpus supported by KVM (8)
> > qemu-hack: Capacity of the redist regions(123) is less than number of vcpus(256)
> 
> Side question: why is KVM_CAP_NR_VCPUS returning 8 for
> "recommended cpus supported by KVM" ? Is something still
> assuming GICv2 CPU limits?

No, it is only that KVM_CAP_NR_VCPUS is defined as returning the
number of physical CPUs (and this test machine has only 8 of them).

	M.

-- 
Without deviation from the norm, progress is not possible.



[Index of Archives]     [KVM ARM]     [KVM ia64]     [KVM ppc]     [Virtualization Tools]     [Spice Development]     [Libvirt]     [Libvirt Users]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite Questions]     [Linux Kernel]     [Linux SCSI]     [XFree86]

  Powered by Linux