Re: [Xen-devel] [PATCH v3 00/11] xen: Initial kexec/kdump implementation

2013-01-04 Thread Konrad Rzeszutek Wilk
On Fri, Jan 04, 2013 at 06:07:51PM +0100, Daniel Kiper wrote: > On Fri, Jan 04, 2013 at 02:41:17PM +, Jan Beulich wrote: > > >>> On 04.01.13 at 15:22, Daniel Kiper wrote: > > > On Wed, Jan 02, 2013 at 11:26:43AM +, Andrew Cooper wrote: > > >> /sbin/kexec can load the "Xen" crash kernel its

Re: [PATCH v3 02/11] x86/kexec: Add extra pointers to transition page table PGD, PUD, PMD and PTE

2013-01-04 Thread Daniel Kiper
On Fri, Jan 04, 2013 at 04:12:32PM +, Jan Beulich wrote: > >>> On 04.01.13 at 16:15, Daniel Kiper wrote: > > On Thu, Jan 03, 2013 at 09:34:55AM +, Jan Beulich wrote: > >> >>> On 27.12.12 at 03:18, Daniel Kiper wrote: > >> > Some implementations (e.g. Xen PVOPS) could not use part of ident

Re: [Xen-devel] [PATCH v3 00/11] xen: Initial kexec/kdump implementation

2013-01-04 Thread Daniel Kiper
On Fri, Jan 04, 2013 at 02:41:17PM +, Jan Beulich wrote: > >>> On 04.01.13 at 15:22, Daniel Kiper wrote: > > On Wed, Jan 02, 2013 at 11:26:43AM +, Andrew Cooper wrote: > >> /sbin/kexec can load the "Xen" crash kernel itself by issuing > >> hypercalls using /dev/xen/privcmd. This would rem

Re: [Xen-devel] [PATCH v3 00/11] xen: Initial kexec/kdump implementation

2013-01-04 Thread Daniel Kiper
On Fri, Jan 04, 2013 at 02:38:44PM +, David Vrabel wrote: > On 04/01/13 14:22, Daniel Kiper wrote: > > On Wed, Jan 02, 2013 at 11:26:43AM +, Andrew Cooper wrote: > >> On 27/12/12 18:02, Eric W. Biederman wrote: > >>> Andrew Cooper writes: > >>> > On 27/12/2012 07:53, Eric W. Biederman

Re: [PATCH v3 02/11] x86/kexec: Add extra pointers to transition page table PGD, PUD, PMD and PTE

2013-01-04 Thread Jan Beulich
>>> On 04.01.13 at 16:15, Daniel Kiper wrote: > On Thu, Jan 03, 2013 at 09:34:55AM +, Jan Beulich wrote: >> >>> On 27.12.12 at 03:18, Daniel Kiper wrote: >> > Some implementations (e.g. Xen PVOPS) could not use part of identity page > table >> > to construct transition page table. It means t

Re: [PATCH v3 02/11] x86/kexec: Add extra pointers to transition page table PGD, PUD, PMD and PTE

2013-01-04 Thread Daniel Kiper
On Thu, Jan 03, 2013 at 09:34:55AM +, Jan Beulich wrote: > >>> On 27.12.12 at 03:18, Daniel Kiper wrote: > > Some implementations (e.g. Xen PVOPS) could not use part of identity page > > table > > to construct transition page table. It means that they require separate > > PUDs, > > PMDs and

Re: [Xen-devel] [PATCH v3 00/11] xen: Initial kexec/kdump implementation

2013-01-04 Thread Jan Beulich
>>> On 04.01.13 at 15:22, Daniel Kiper wrote: > On Wed, Jan 02, 2013 at 11:26:43AM +, Andrew Cooper wrote: >> /sbin/kexec can load the "Xen" crash kernel itself by issuing >> hypercalls using /dev/xen/privcmd. This would remove the need for >> the dom0 kernel to distinguish between loading a

Re: [Xen-devel] [PATCH v3 00/11] xen: Initial kexec/kdump implementation

2013-01-04 Thread Ian Campbell
On Fri, 2013-01-04 at 14:22 +, Daniel Kiper wrote: > On Wed, Jan 02, 2013 at 11:26:43AM +, Andrew Cooper wrote: > > On 27/12/12 18:02, Eric W. Biederman wrote: > > >Andrew Cooper writes: > > > > > >>On 27/12/2012 07:53, Eric W. Biederman wrote: > > >>>The syscall ABI still has the wrong se

Re: [Xen-devel] [PATCH v3 00/11] xen: Initial kexec/kdump implementation

2013-01-04 Thread Konrad Rzeszutek Wilk
On Fri, Jan 04, 2013 at 03:22:57PM +0100, Daniel Kiper wrote: > On Wed, Jan 02, 2013 at 11:26:43AM +, Andrew Cooper wrote: > > On 27/12/12 18:02, Eric W. Biederman wrote: > > >Andrew Cooper writes: > > > > > >>On 27/12/2012 07:53, Eric W. Biederman wrote: > > >>>The syscall ABI still has the w

Re: [Xen-devel] [PATCH v3 00/11] xen: Initial kexec/kdump implementation

2013-01-04 Thread Daniel Kiper
On Wed, Jan 02, 2013 at 11:26:43AM +, Andrew Cooper wrote: > On 27/12/12 18:02, Eric W. Biederman wrote: > >Andrew Cooper writes: > > > >>On 27/12/2012 07:53, Eric W. Biederman wrote: > >>>The syscall ABI still has the wrong semantics. > >>> > >>>Aka totally unmaintainable and umergeable. > >>

Re: [PATCH v3 02/11] x86/kexec: Add extra pointers to transition page table PGD, PUD, PMD and PTE

2013-01-04 Thread Daniel Kiper
On Fri, Dec 28, 2012 at 01:59:27PM +0100, Borislav Petkov wrote: > On Thu, Dec 27, 2012 at 03:19:24PM -0800, Daniel Kiper wrote: > > > Hmm... this code is being redone at the moment... this might conflict. > > > > Is this available somewhere? May I have a look at it? > > http://marc.info/?l=linux-k

Re: [PATCH v3 01/11] kexec: introduce kexec firmware support

2013-01-04 Thread Daniel Kiper
On Thu, Dec 27, 2012 at 07:06:13PM -0800, ebied...@xmission.com wrote: > Daniel Kiper writes: > > >> Daniel Kiper writes: > >> > >> > Some kexec/kdump implementations (e.g. Xen PVOPS) could not use default > >> > Linux infrastructure and require some support from firmware and/or > >> > hyperviso