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charset="utf-8" During the multiple renames of the sub-option I apparently forgot to update the left side of the &&, and this pretty consistently. Fixes: 980d6acf1517 ("IOMMU: make DMA containment of quarantined devices op= tional") Reported-by: Andrew Cooper Signed-off-by: Jan Beulich Reviewed-by: Paul Durrant --- a/xen/drivers/passthrough/iommu.c +++ b/xen/drivers/passthrough/iommu.c @@ -82,7 +82,7 @@ static int __init parse_iommu_param(cons #ifdef CONFIG_HAS_PCI else if ( (val =3D parse_boolean("quarantine", s, ss)) >=3D 0 ) iommu_quarantine =3D val; - else if ( ss =3D=3D s + 15 && !strncmp(s, "quarantine=3Dscratch-pa= ge", 23) ) + else if ( ss =3D=3D s + 23 && !strncmp(s, "quarantine=3Dscratch-pa= ge", 23) ) iommu_quarantine =3D IOMMU_quarantine_scratch_page; #endif #ifdef CONFIG_X86 From nobody Sun May 5 08:16:11 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; envelope-from=xen-devel-bounces@lists.xenproject.org; helo=lists.xenproject.org; Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org; 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charset="utf-8" This amends commit 980d6acf1517 ("IOMMU: make DMA containment of quarantined devices optional"). Signed-off-by: Jan Beulich Reviewed-by: Paul Durrant --- 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. =20 +### Changed + - Quarantining of passed-through PCI devices no longer defaults to direct= ing I/O to a scratch + page, matching original post-XSA-302 behavior (albeit the change was al= so 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=3Dquarantine=3Dscratch-page" on the hypervisor com= mand line. + ## [4.15.0 UNRELEASED](https://xenbits.xen.org/gitweb/?p=3Dxen.git;a=3Dsho= rtlog;h=3DRELEASE-4.15.0) - TBD =20 ### Added / support upgraded