Hi Tomoki
I tried your smart patch "cpu isolation and direct interrupt delivery",
http://article.gmane.org/gmane.linux.kernel/1353803
got output when I run qemu
kvm_set_slave_cpu: Invalid argument
So I wonder
* Did I misuse your patches?
* How is the offlined CPU assigned? or the Guest OS will automaticly detect and
use it?
details of my trial:
- based on v3.6-rc4 and qemu-kvm-1.0 as you commented
- boot the kernel with intel_iommu=on
BOOT_IMAGE=(hd0,1)/boot/vmlinuz-3.6.0-rc4+ root=/dev/sda1 rhgb quiet
selinux=0 intel_iommu=on
- the offlined cpu
# cat /sys/devices/system/cpu/offline
23
- qemu command line
qemu-kvm -enable-kvm -m 1024 -cpu qemu64,+x2apic -no-kvm-pit -serial pty
-nographic -drive
file=/mnt/sdb/vmtest/testfc.qcow2,if=virtio,index=0,format=qcow2 -spice
port=12000,addr=186.100.8.171,disable-ticketing,plaintext-channel=main,plaintext-channel=playback,plaintext-channel=record,image-compression=auto_glz
Thanks,
Yang Minqiang--
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