patch about "don't reset vcpu_info on a cancelled suspend"

Quoted 9 lines

vcpu_info would be reset to wrong place on canceled suspend on PVOPS VM which has multi-cpu

The hypervisor continues assuming that vcpu_info is stored in per-cpu data which was set up by xen_vcpu_setup(), while on canceled suspend, the call to xen_hvm_init_shared_info() will make the guest think that vcpu_info is in the shared page. This will cause non-boot cpus keep checking a wrong vcpu_info address and can not handle irqs any more after suspend canceled, for example after we do "xl save -c/restore", PVOPS VM can not be resumed as the cpus can not finish their irqs.

Quoted 3 lines

Signed-off-by Charles Ouyang <ouyangzhaowei [at] huawei>

Reviewed-by Boris Ostrovsky <boris.ostrovsky [at] oracle>

Reviewed-by David Vrabel <david.vrabel [at] citrix>

1. I don't think I offered a reviewed-by tag for this patch
2. You did not Cc the xen-devel mailing list on this patch.
3. The patch is white-space damaged.
4. The commit message has lines longer than ~72 chars.

But I've applied this to for-linus-4.1b anyway, thanks.

David

Hi David,

This patch has been applied to for-linus-4.1b, and we wonder if this patch will be applied to linux kernel, or does it still needs more test to apply to linux kernel?

Hi David,

This patch has been applied to for-linus-4.1b, and we wonder if this patch will be applied to linux kernel, or does it still needs more test to apply to linux kernel?

Quoted 4 lines · Ouyangzhaowei (Charles)

Hi David,

This patch has been applied to for-linus-4.1b, and we wonder if this patch will be applied to linux kernel, or does it still needs more test to apply to linux kernel?

Sorry, it looks like I forgot to send a pull request for this patch. I'd applied it to for-linus-4.5 and tagged it for stable.

David

.

Quoted 4 lines · Ouyangzhaowei (Charles)

Hi David,

This patch has been applied to for-linus-4.1b, and we wonder if this patch will be applied to linux kernel, or does it still needs more test to apply to linux kernel?

Sorry, it looks like I forgot to send a pull request for this patch. I'd applied it to for-linus-4.5 and tagged it for stable.

David

.