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[PATCH] Changelog: Add details about new features for SPR


  • To: Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>
  • From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
  • Date: Fri, 20 Jan 2023 22:00:04 +0000
  • Authentication-results: esa2.hc3370-68.iphmx.com; dkim=none (message not signed) header.i=none
  • Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, George Dunlap <George.Dunlap@xxxxxxxxxxxxx>, Jan Beulich <JBeulich@xxxxxxxx>, "Stefano Stabellini" <sstabellini@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, Julien Grall <julien@xxxxxxx>, Henry Wang <Henry.Wang@xxxxxxx>
  • Delivery-date: Fri, 20 Jan 2023 22:00:23 +0000
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Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
CC: George Dunlap <George.Dunlap@xxxxxxxxxxxxx>
CC: Jan Beulich <JBeulich@xxxxxxxx>
CC: Stefano Stabellini <sstabellini@xxxxxxxxxx>
CC: Wei Liu <wl@xxxxxxx>
CC: Julien Grall <julien@xxxxxxx>
CC: Henry Wang <Henry.Wang@xxxxxxx>

A reminder to everyone, write the changelog as it happens, rather than
scrambling to remember 8 months of development just as the release is
happening.
---
 CHANGELOG.md | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 675413971360..b116163b62c5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,14 @@ The format is based on [Keep a 
Changelog](https://keepachangelog.com/en/1.0.0/)
 
 ## [unstable 
UNRELEASED](https://xenbits.xen.org/gitweb/?p=xen.git;a=shortlog;h=staging) - 
TBD
 
+### Added
+ - On x86, support for features new in Intel Sapphire Rapids CPUs:
+   - PKS (Protection Key Supervisor) available to HVM/PVH guests.
+   - VM-Notify used by Xen to mitigate certain micro-architectural pipeline
+     livelocks, instead of crashing the entire server.
+   - Bus-lock detection, used by Xen to mitigate (by rate-limiting) the system
+     wide impact of a guest misusing atomic instructions.
+
 ## 
[4.17.0](https://xenbits.xen.org/gitweb/?p=xen.git;a=shortlog;h=RELEASE-4.17.0) 
- 2022-12-12
 
 ### Changed
-- 
2.11.0




 


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