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Diffstat (limited to 'results/classifier/105/KVM/1830821')
| -rw-r--r-- | results/classifier/105/KVM/1830821 | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/results/classifier/105/KVM/1830821 b/results/classifier/105/KVM/1830821 new file mode 100644 index 00000000..b7a0e4c7 --- /dev/null +++ b/results/classifier/105/KVM/1830821 @@ -0,0 +1,47 @@ +KVM: 0.819 +device: 0.514 +graphic: 0.514 +network: 0.458 +semantic: 0.411 +socket: 0.398 +vnc: 0.361 +boot: 0.345 +mistranslation: 0.287 +instruction: 0.283 +other: 0.160 +assembly: 0.150 + +Expose ARCH_CAP_MDS_NO in guest + +Description: + +MDS_NO is bit 5 of ARCH_CAPABILITIES. Expose this bit to guest. + +Target Qemu: 4.1 + +The specific upstream commit is 20140a82c67467f53814ca197403d5e1b561a5e5 and is incorporated into qemu 1:3.1+dfsg-2ubuntu3.1 in disco-security (19.04) and 1:3.1+dfsg-2ubuntu4 in eoan-proposed. For backporting to cosmic and older, I believe it requires the infrastructure to support IA32_ARCH_CAPABILITIES in place. + +This is done upstream, no need for the upstream bug task. +For Ubuntu I'll update the tasks to match the statement of sbeattie. +There are discussions to reconsider some of the backports, but unfortunately the IA32_ARCH_CAPABILITIES infrastructure is a rather big set of changes. + +This effort, if done, would be done together with: + +https://bugs.launchpad.net/intel/+bug/1828495 + +Please read comments: + +https://bugs.launchpad.net/intel/+bug/1828495/comments/8 + +and + +https://bugs.launchpad.net/intel/+bug/1828495/comments/10 + +I'm marking this bug as a duplicate of LP: #1828495 since both are asking for mitigations pass-through to i386 kvm guests and I'm preparing a fix for both simultaneously. + +Commit: + +https://bugs.launchpad.net/intel/+bug/1828495/comments/42 + +Addresses exactly this bug fix. + |