similar to: [PATCH] Xen/MCE: stick all 1's to MCi_CTL of vMCE

Hi, This is updated xen vMCE design foils, according to comments from community recently. This foils focus on vMCE part of Xen MCA, so as Keir said, it''s some dense. Later Will will present a document to elaborate more, including Intel MCA and surrounding features and Xen implementation. Thanks, Jinsong

Xen/MCE: vMCE injection In our test for win8 guest mce, we find a bug that no matter what SRAO/SRAR error xen inject to win8 guest, it always reboot. The root cause is, current Xen vMCE logic inject vMCE# only to vcpu0, this is not correct for Intel MCE (Under Intel arch, h/w generate MCE# to all CPUs). This patch fix vMCE injection bug, injecting vMCE# to all vcpus. Signed-off-by: Liu,

Hi! The MCG_CAP MSR never returns a negative count of available error-reporting banks. Thus make nr_mce_banks unsigned. While here, do some other minor cleanups. Signed-off-by: Christoph Egger <Christoph.Egger@amd.com> -- AMD Saxony, Dresden, Germany Operating System Research Center Legal Information: AMD Saxony Limited Liability Company & Co. KG Sitz (Geschäftsanschrift):

These seven patches replace [PATCH 6/10], or in the second send, patches 6a. 6b, 6c and 6d. There are more patches because Andi hassled me about extern decls, so I had to expose some things. Tiny patches, but worth separating because you never know when such changes will break something. Compiles and runs here... Thanks, Rusty.

These seven patches replace [PATCH 6/10], or in the second send, patches 6a. 6b, 6c and 6d. There are more patches because Andi hassled me about extern decls, so I had to expose some things. Tiny patches, but worth separating because you never know when such changes will break something. Compiles and runs here... Thanks, Rusty.

Implement AMD MSRs for vMCE Signed-off-by: Christoph Egger <Christoph.Egger@amd.com> -- ---to satisfy European Law for business letters: Advanced Micro Devices GmbH Einsteinring 24, 85689 Dornach b. Muenchen Geschaeftsfuehrer: Alberto Bozzo Sitz: Dornach, Gemeinde Aschheim, Landkreis Muenchen Registergericht Muenchen, HRB Nr. 43632 _______________________________________________

On Mon, May 15, 2017 at 02:02:53AM -0600, Jan Beulich wrote: > >>> On 14.05.17 at 00:36, <ehem+debian at m5p.com> wrote: > > I haven't yet done as much experimentation as Andreas Pflug has, but I > > can confirm I'm also running into this bug with Xen 4.4.1. > > > > I've only tried Linux kernel 3.16.43, but as Dom0: > > > > EDAC

Hello! The current MCA/MCE support in Xen is that it dumps the error and panics. In the following concept I propose here, there are two places where Xen has to react on. I) Xen receives a MCE from the CPU and II) Xen receives Dom0 instructions via Hypercall The term "self-healing" below is used in the sense of using the most propriate technique(s) to handle an error such as MPR

This patch series is a reworking of a series developed by Mukesh Rathor at Oracle. The entirety of the design and development was done by him; I have only reworked, reorganized, and simplified things in a way that I think makes more sense. The vast majority of the credit for this effort therefore goes to him. This version is labelled v13 because it is based on his most recent series, v11.