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[Qemu-ppc] PPC970: "CPU requires an RMO"

From: red f1sh
Subject: [Qemu-ppc] PPC970: "CPU requires an RMO"
Date: Tue, 6 Dec 2011 21:47:37 -0800


I'm trying to use qemu-kvm on a ppc970 box, and when I try to execute qemu-system-ppc64 with -enable-kvm I'm getting an "Invalid argument" message and "CPU requires an RMO" in dmesg. For example:

# /usr/local/bin/qemu-system-ppc64 -kernel /boot/vmlinux-3.2.0-rc4 -m 1024 -initrd /boot/ramdisk.dr.gz -enable-kvm -mem-path /HTLBFS/

kvm_set_phys_mem: error registering slot: Invalid argument
 Aborted (core dumped)

In dmesg I get:
KVM guest htab at c00000013f000000, LPID 1
CPU requires an RMO

I think I have everything setup correctly, I have the "kvm_rma_count" kernel parameter set and (as far as I can tell) hugetlbfs is setup correctly. Meminfo looks like:
# cat /proc/meminfo | grep -i huge
HugePages_Total:     296
HugePages_Free:      296
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:      16384 kB

I'm sure I'm missing something, anyone have any ideas?



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