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[PATCH for-4.18 2/3] CHANGELOG: More 4.18 content
- To: Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- Date: Tue, 31 Oct 2023 13:19:53 +0000
- Authentication-results: esa1.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>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Henry Wang <Henry.Wang@xxxxxxx>
- Delivery-date: Tue, 31 Oct 2023 13:20:11 +0000
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- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
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: Roger Pau Monné <roger.pau@xxxxxxxxxx>
CC: Henry Wang <Henry.Wang@xxxxxxx>
---
CHANGELOG.md | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/CHANGELOG.md b/CHANGELOG.md
index edc0d69898ed..a827054cf27d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -18,10 +18,17 @@ The format is based on [Keep a
Changelog](https://keepachangelog.com/en/1.0.0/)
### Added
- On x86:
+ - On all Intel systems, MSR_ARCH_CAPS is now visible in guests, and
+ controllable from the VM's config file. For CPUs from ~2019 onwards,
+ this allows guest kernels to see details about hardware fixes for
+ speculative mitigations. (Backported as XSA-435 to older releases).
- xl/libxl can customize SMBIOS strings for HVM guests.
- Support for enforcing system-wide operation in Data Operand Independent
Timing Mode.
- Add Intel Hardware P-States (HWP) cpufreq driver.
+ - Support for features new in AMD Genoa CPUs:
+ - CPUID_USER_DIS (CPUID Faulting) used by Xen to control PV guest's view
+ of CPUID data.
- 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
--
2.30.2
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