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Groups > linux.kernel > #1449446
| From | David Vrabel <david.vrabel@citrix.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [Xen-devel] [PATCH linux v2 0/9] xen: pvhvm: support bootup on secondary vCPUs |
| Date | 2016-07-25 14:40 +0200 |
| Message-ID | <rYNkR-4yZ-5@gated-at.bofh.it> (permalink) |
| References | <rPMxH-2YZ-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On 30/06/16 16:56, 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't work very well for PVHVM guests as > we have a number of hypercalls where we pass vCPU id as a parameter. These > hypercalls either fail or do something unexpected. To solve the issue we > need to have a mapping between Linux's and Xen's vCPU ids. > > This series solves the issue for x86 PVHVM guests. PV guests don't (and > probably won't) support kdump so I always assume Xen's vCPU id == Linux's > vCPU id. ARM guests will probably need to get proper mapping once we start > supporting kexec/kdump there. Applied to for-linus-4.8, thanks. David
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Re: [Xen-devel] [PATCH linux v2 0/9] xen: pvhvm: support bootup on secondary vCPUs David Vrabel <david.vrabel@citrix.com> - 2016-07-25 14:40 +0200
Re: [Xen-devel] [PATCH linux v2 0/9] xen: pvhvm: support bootup on secondary vCPUs Julien Grall <julien.grall@arm.com> - 2016-07-25 15:20 +0200
Re: [Xen-devel] [PATCH linux v2 0/9] xen: pvhvm: support bootup on secondary vCPUs Vitaly Kuznetsov <vkuznets@redhat.com> - 2016-07-25 15:40 +0200
Re: [Xen-devel] [PATCH linux v2 0/9] xen: pvhvm: support bootup on secondary vCPUs Julien Grall <julien.grall@arm.com> - 2016-07-25 16:10 +0200
Re: [Xen-devel] [PATCH linux v2 0/9] xen: pvhvm: support bootup on secondary vCPUs David Vrabel <david.vrabel@citrix.com> - 2016-07-25 16:10 +0200
Re: [Xen-devel] [PATCH linux v2 0/9] xen: pvhvm: support bootup on secondary vCPUs Vitaly Kuznetsov <vkuznets@redhat.com> - 2016-07-25 16:30 +0200
Re: [Xen-devel] [PATCH linux v2 0/9] xen: pvhvm: support bootup on secondary vCPUs Stefano Stabellini <sstabellini@kernel.org> - 2016-07-25 21:20 +0200
Re: [Xen-devel] [PATCH linux v2 0/9] xen: pvhvm: support bootup on secondary vCPUs Stefano Stabellini <sstabellini@kernel.org> - 2016-07-25 23:40 +0200
Re: [Xen-devel] [PATCH linux v2 0/9] xen: pvhvm: support bootup on secondary vCPUs David Vrabel <david.vrabel@citrix.com> - 2016-07-25 15:50 +0200
Re: [Xen-devel] [PATCH linux v2 0/9] xen: pvhvm: support bootup on secondary vCPUs Stefano Stabellini <sstabellini@kernel.org> - 2016-07-25 23:20 +0200
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