[Xen-devel] [PATCH] Fix to save CPU affinity for xm save/restore

[Masaki Kanno <kanno.masaki@xxxxxxxxxxxxxx>]

Hi,

CPU affinity of a domain is saved into a checkpoint file by this patch, 
then VCPUs are repinned when the domain is restored.

# xm vcpu-list vm1
Name                                ID  VCPU   CPU State   Time(s) CPU Affinity
vm1                                 10     0     1   -b-      19.5 1
vm1                                 10     1     0   -b-      16.0 0
# xm save vm1 ~/vm1.checkpoint
# xm restore ~/vm1.checkpoint 
# xm vcpu-list vm1
Name                                ID  VCPU   CPU State   Time(s) CPU Affinity
vm1                                 11     0     1   -b-       0.0 1
vm1                                 11     1     0   -b-       0.0 0


# xm vcpu-list vm1
Name                                ID  VCPU   CPU State   Time(s) CPU Affinity
vm1                                 12     0     1   -b-      18.4 1
vm1                                 12     1     0   -b-      16.7 0
# xm suspend vm1
# xm vcpu-list vm1
Name                                ID  VCPU   CPU State   Time(s) CPU Affinity
vm1                                        0                   0.0 1
vm1                                        1                   0.0 0
# xm resume vm1
# xm vcpu-list vm1
Name                                ID  VCPU   CPU State   Time(s) CPU Affinity
vm1                                 13     0     1   -b-       0.0 1
vm1                                 13     1     0   -b-       0.0 0


Signed-off-by: Masaki Kanno <kanno.masaki@xxxxxxxxxxxxxx>

Best regards,
 Kan

Attachment: restore_cpus_affinity.patch
Description: Binary data

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