On 07/07/2021 14:22, Jan Beulich wrote:
This amends commit 980d6acf1517 ("IOMMU: make DMA containment of
quarantined devices optional").
Signed-off-by: Jan Beulich <jbeul...@suse.com>
Reviewed-by: Paul Durrant <p...@xen.org>
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,13 @@ The format is based on [Keep a Changelog
- XENSTORED_ROOTDIR environment variable from configuartion files and
initscripts, due to being unused.
+### Changed
+ - Quarantining of passed-through PCI devices no longer defaults to directing
I/O to a scratch
+ page, matching original post-XSA-302 behavior (albeit the change was also
backported, first
+ appearing in 4.12.2 and 4.11.4). Prior (4.13...4.15-like) behavior can be
arranged for
+ either by enabling the IOMMU_QUARANTINE_SCRATCH_PAGE setting at build
(configuration) time
+ or by passing "iommu=quarantine=scratch-page" on the hypervisor command
line.
+
## [4.15.0
UNRELEASED](https://xenbits.xen.org/gitweb/?p=xen.git;a=shortlog;h=RELEASE-4.15.0)
- TBD
### Added / support upgraded
