** Description changed: GCP is requesting the backport of the patch "6b080c4e815ceba3c08f iommu/amd: Add map/unmap_pages() iommu_domain_ops callback support" from - upstream 6.2 to the 5.19 (kinetic) gcp kernel + upstream 6.2 to the 5.19 gcp kernel The following two patches are required for the backport: 6b080c4e815ceba3c08ffa980c858595c07e7 iommu/amd/io-pgtable: Implement map_pages io_pgtable_ops callback 251c4db699ca7b966db7e59e8663a231c96ba iommu/amd/io-pgtable: Implement unmap_pages io_pgtable_ops callback More info at https://canonical.lightning.force.com/lightning/r/Case/5008e00000CjJJCAA3/view Impact: - This allows the AMD iommu driver to map/unmap multiple pages in one call. GCP states that these changes also have a security side-effect which they are interested in. Testing: - Boot-tested the changes in a gcp SEV and non-SEV environment on AMD hardware.
** Description changed: GCP is requesting the backport of the patch "6b080c4e815ceba3c08f iommu/amd: Add map/unmap_pages() iommu_domain_ops callback support" from upstream 6.2 to the 5.19 gcp kernel The following two patches are required for the backport: 6b080c4e815ceba3c08ffa980c858595c07e7 iommu/amd/io-pgtable: Implement map_pages io_pgtable_ops callback 251c4db699ca7b966db7e59e8663a231c96ba iommu/amd/io-pgtable: Implement unmap_pages io_pgtable_ops callback More info at https://canonical.lightning.force.com/lightning/r/Case/5008e00000CjJJCAA3/view Impact: - This allows the AMD iommu driver to map/unmap multiple pages in one call. GCP states that these changes also have a security side-effect which they are interested in. Testing: - - Boot-tested the changes in a gcp SEV and non-SEV environment on AMD hardware. + - Boot-tested the changes in SEV, SEV-SNP and non-SEV environments on AMD hardware. ** Description changed: GCP is requesting the backport of the patch "6b080c4e815ceba3c08f iommu/amd: Add map/unmap_pages() iommu_domain_ops callback support" from upstream 6.2 to the 5.19 gcp kernel The following two patches are required for the backport: 6b080c4e815ceba3c08ffa980c858595c07e7 iommu/amd/io-pgtable: Implement map_pages io_pgtable_ops callback 251c4db699ca7b966db7e59e8663a231c96ba iommu/amd/io-pgtable: Implement unmap_pages io_pgtable_ops callback More info at https://canonical.lightning.force.com/lightning/r/Case/5008e00000CjJJCAA3/view Impact: - This allows the AMD iommu driver to map/unmap multiple pages in one call. GCP states that these changes also have a security side-effect which they are interested in. Testing: - Boot-tested the changes in SEV, SEV-SNP and non-SEV environments on AMD hardware. + + + Regression potential: + - The changes are limited to the AMD iommu driver. Regression potential could impact virtualization on AMD hardware. Risk is considered low as the changes are limited and apply cleanly from upstream. ** Description changed: GCP is requesting the backport of the patch "6b080c4e815ceba3c08f iommu/amd: Add map/unmap_pages() iommu_domain_ops callback support" from upstream 6.2 to the 5.19 gcp kernel The following two patches are required for the backport: 6b080c4e815ceba3c08ffa980c858595c07e7 iommu/amd/io-pgtable: Implement map_pages io_pgtable_ops callback 251c4db699ca7b966db7e59e8663a231c96ba iommu/amd/io-pgtable: Implement unmap_pages io_pgtable_ops callback More info at https://canonical.lightning.force.com/lightning/r/Case/5008e00000CjJJCAA3/view Impact: - This allows the AMD iommu driver to map/unmap multiple pages in one call. GCP states that these changes also have a security side-effect which they are interested in. Testing: - Boot-tested the changes in SEV, SEV-SNP and non-SEV environments on AMD hardware. - Regression potential: - - The changes are limited to the AMD iommu driver. Regression potential could impact virtualization on AMD hardware. Risk is considered low as the changes are limited and apply cleanly from upstream. + - The changes are limited to the AMD iommu driver. Regression potential could impact virtualization on AMD hardware. Risk is considered low as the changes are limited and apply cleanly from upstream. The requested patch is from 6.2 and there have been no follow-up fixes since. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-gcp in Ubuntu. https://bugs.launchpad.net/bugs/2023313 Title: gcp: backport "iommu/amd: Add map/unmap_pages() iommu_domain_ops callback support" Status in linux-gcp package in Ubuntu: In Progress Status in linux-gcp source package in Kinetic: In Progress Bug description: GCP is requesting the backport of the patch "6b080c4e815ceba3c08f iommu/amd: Add map/unmap_pages() iommu_domain_ops callback support" from upstream 6.2 to the 5.19 gcp kernel The following two patches are required for the backport: 6b080c4e815ceba3c08ffa980c858595c07e7 iommu/amd/io-pgtable: Implement map_pages io_pgtable_ops callback 251c4db699ca7b966db7e59e8663a231c96ba iommu/amd/io-pgtable: Implement unmap_pages io_pgtable_ops callback More info at https://canonical.lightning.force.com/lightning/r/Case/5008e00000CjJJCAA3/view Impact: - This allows the AMD iommu driver to map/unmap multiple pages in one call. GCP states that these changes also have a security side-effect which they are interested in. Testing: - Boot-tested the changes in SEV, SEV-SNP and non-SEV environments on AMD hardware. Regression potential: - The changes are limited to the AMD iommu driver. Regression potential could impact virtualization on AMD hardware. Risk is considered low as the changes are limited and apply cleanly from upstream. The requested patch is from 6.2 and there have been no follow-up fixes since. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-gcp/+bug/2023313/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
