From: Andrew Cooper Date: Fri, 20 Jan 2023 21:58:36 +0000 (+0000) Subject: Changelog: Add details about new features for SPR X-Git-Tag: 4.18.0-rc1~1142 X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=f28fe0849b68411b8d5fdd92875bae0ebd8b1516;p=xen.git Changelog: Add details about new features for SPR Signed-off-by: Andrew Cooper Acked-by: Henry Wang --- diff --git a/CHANGELOG.md b/CHANGELOG.md index 6754139713..b116163b62 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