Re: [Xen-devel] [PATCH v5 0/2] Containing AER unrecoverable errors

[Venu Busireddy <venu.busireddy@xxxxxxxxxx>]

On 2018-03-16 10:32:10 -0400, Konrad Rzeszutek Wilk wrote:
> On Tue, Mar 13, 2018 at 01:43:39PM -0500, Venu Busireddy wrote:
> > This patch set is part of a set of patches that together allow containment
> > of unrecoverable AER errors from PCIe devices assigned to guests in
> > passthrough mode. The containment is achieved by forcibly removing the
> > erring PCIe device from the guest.
> > 
> > The original xen-pciback patch corresponding to this patch set is:
> > https://lists.xen.org/archives/html/xen-devel/2017-06/msg03274.html.
> > It will be reposted after this patch set is accepted.
> > 
> > Changes in v5:
> >   * v4 worked only in the case of guests created using 'xl' command.
> >     Enhanced the fix to work for guests created using libvirt too.
> 
> Are there any libvirt patches for this?

No. There is no change to libvirt itself. All the changes are contained
within xl and xen-pciback.

Venu

> > 
> > Changes in v4:
> >   * Made the following changes suggested by Wei Liu.
> >     - Combine multiple LIBXL_HAVE_* definitions into one.
> >     - Use libxl__calloc() instead of malloc().
> > 
> > Changes in v3:
> >   * Made the following changes suggested by Wei Liu.
> >     - Added LIBXL_HAVE macros to libxl.h.
> >     - Don't hard-code dom0's domid to 0. Instead, use libxl__get_domid().
> >     - Corrected comments.
> >   * Made the following changes based on comments from Ian Jackson.
> >     - Got rid of the global variable aer_watch.
> >     - Added documentation (comments in code) for the new API calls.
> >     - Removed the unnecessary writes to xenstore.
> > 
> > Changes in v2:
> >   - Instead of killing the guest and hiding the device, forcibly remove
> >     the device from the guest.
> > 
> > Venu Busireddy (2):
> >   libxl: Implement the handler to handle unrecoverable AER errors
> >   xl: Register the AER event handler that handles AER errors
> > 
> >  tools/libxl/libxl.h          |   7 +++
> >  tools/libxl/libxl_create.c   |  11 +++-
> >  tools/libxl/libxl_domain.c   |   1 +
> >  tools/libxl/libxl_event.h    |   7 +++
> >  tools/libxl/libxl_internal.h |   8 +++
> >  tools/libxl/libxl_pci.c      | 123 
> > +++++++++++++++++++++++++++++++++++++++++++
> >  tools/xl/xl_vmcontrol.c      |  14 ++++-
> >  7 files changed, 168 insertions(+), 3 deletions(-)
> > 

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