| croraf | Jeremy31, thanks | 07:12 |
|---|---|---|
| croraf | In the mirror it should be noted as hwe-edge kernel flavor. | 07:13 |
| apw | RikMills, yes i would expect that to be the last hwe kernel in 20.04 | 11:01 |
| RikMills | apw: thanks! | 11:02 |
| caribou | Hello, I'm currently investigating a few issues related to the use of "Secure Encrypted Virtualization (SEV)" on recent kernel. The first one is that the -kvm kernel flavor does not boot when SEV is enabled (LP: #1955395) | 11:08 |
| ubottu | Launchpad bug 1955395 in linux (Ubuntu Jammy) "KVM flavor of Jammy kernel 5.13 does not boot when Secure Encrypted Virtualization( SEV) is enabled" [Undecided, Confirmed] https://launchpad.net/bugs/1955395 | 11:08 |
| caribou | The second one is that kernels starting with 5.11 will not boot with SEV enabled unless swiotlb is forced to be 512Mb (LP but soon to be filed) | 11:10 |
| caribou | This comes following this commit : https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e998879d4fb7991856916972168cf27c0d86ed12 | 11:10 |
| ubottu | Commit e998879 in kernel/git/torvalds/linux.git "x86,swiotlb: Adjust SWIOTLB bounce buffer size for SEV guests" | 11:10 |
| caribou | This sets the SWIOTLB value to 1024Mb and the lowmem allocation fails on recent Ubuntu kernels. The same commit on Fedora 34 kernels (5.13) succeed with the 1024Mb allocation | 11:11 |
| caribou | oh, just realized that I did create the second bug : LP: #1955655 | 11:12 |
| ubottu | Launchpad bug 1955655 in linux (Ubuntu) "kernel-5.13.0-23-generic : Unable to boot when Secure Encrypted Virtualization( SEV) is enabled without setting swiotlb boot param" [Undecided, Confirmed] https://launchpad.net/bugs/1955655 | 11:12 |
| caribou | I'm currently trying to identify why the lowmem allocation fails on Jammy kernels | 11:13 |
| === gpiccoli_ is now known as gpiccoli | ||
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