Re: [Xen-devel] [PATCH linux 0/8] xen: pvhvm: support bootup on secondary vCPUs

2016-07-01 Thread Vitaly Kuznetsov
David Vrabel writes: > On 29/06/16 10:16, Vitaly Kuznetsov wrote: >> David Vrabel writes: >> >>> On 28/06/16 17:47, Vitaly Kuznetsov wrote: It may happen that Xen's and Linux's ideas of vCPU id diverge. In particular, when we crash on a secondary vCPU we may want to do kdump and

Re: [Xen-devel] [PATCH linux 0/8] xen: pvhvm: support bootup on secondary vCPUs

2016-06-29 Thread David Vrabel
On 29/06/16 10:16, Vitaly Kuznetsov wrote: > David Vrabel writes: > >> On 28/06/16 17:47, Vitaly Kuznetsov wrote: >>> It may happen that Xen's and Linux's ideas of vCPU id diverge. In >>> particular, when we crash on a secondary vCPU we may want to do kdump >>> and unlike plain kexec where we do

Re: [Xen-devel] [PATCH linux 0/8] xen: pvhvm: support bootup on secondary vCPUs

2016-06-29 Thread Vitaly Kuznetsov
David Vrabel writes: > On 28/06/16 17:47, Vitaly Kuznetsov wrote: >> It may happen that Xen's and Linux's ideas of vCPU id diverge. In >> particular, when we crash on a secondary vCPU we may want to do kdump >> and unlike plain kexec where we do migrate_to_reboot_cpu() we try booting >> on the vC

Re: [Xen-devel] [PATCH linux 0/8] xen: pvhvm: support bootup on secondary vCPUs

2016-06-28 Thread David Vrabel
On 28/06/16 17:47, Vitaly Kuznetsov wrote: > It may happen that Xen's and Linux's ideas of vCPU id diverge. In > particular, when we crash on a secondary vCPU we may want to do kdump > and unlike plain kexec where we do migrate_to_reboot_cpu() we try booting > on the vCPU which crashed. This doesn'

[Xen-devel] [PATCH linux 0/8] xen: pvhvm: support bootup on secondary vCPUs

2016-06-28 Thread Vitaly Kuznetsov
It may happen that Xen's and Linux's ideas of vCPU id diverge. In particular, when we crash on a secondary vCPU we may want to do kdump and unlike plain kexec where we do migrate_to_reboot_cpu() we try booting on the vCPU which crashed. This doesn't work very well for PVHVM guests as we have a numb