| Message ID | 20240906174326.773072-1-john.cabaj@canonical.com |
|---|---|
| Headers | show |
| Series | Revert fix for "Kernel fails to enable XSAVE when running in a “v5” AMD SEV-SNP VM" | expand |
Acked-by: Thibault Ferrante <thibault.ferrante@canonical.com> On 06-09-2024 19:43, John Cabaj wrote: > BugLink: https://bugs.launchpad.net/bugs/2079841 > > SRU Justification > > [Impact] > > * LP #2069204 disabled CET Shadow Stack on SEV-SNP due to CPUID emulation bug not being fixed in VMs until October 2024. > * This issue is now fixed, so the patch can be reverted. > > [Fix] > > * Revert "UBUNTU: SAUCE: x86/hyperv: temporarily disable CET SS on SEV-SNP due to a paravisor bug" > > [Test Plan] > > * Compile tested > * Boot tested > > [Regression potential] > > * Reverting back to previous state, so regression very unlikely. > * Changes isolated, minimal regression risk > > [Other info] > > * SF #00387447 > > John Cabaj (1): > Revert "UBUNTU: SAUCE: x86/hyperv: temporarily disable CET SS on > SEV-SNP due to a paravisor bug" > > arch/x86/kernel/cpu/mshyperv.c | 21 --------------------- > 1 file changed, 21 deletions(-) >
On 06/09/2024 14:43, John Cabaj wrote: > BugLink: https://bugs.launchpad.net/bugs/2079841 > > SRU Justification > > [Impact] > > * LP #2069204 disabled CET Shadow Stack on SEV-SNP due to CPUID emulation bug not being fixed in VMs until October 2024. > * This issue is now fixed, so the patch can be reverted. > > [Fix] > > * Revert "UBUNTU: SAUCE: x86/hyperv: temporarily disable CET SS on SEV-SNP due to a paravisor bug" > > [Test Plan] > > * Compile tested > * Boot tested > > [Regression potential] > > * Reverting back to previous state, so regression very unlikely. > * Changes isolated, minimal regression risk > > [Other info] > > * SF #00387447 > Acked-by: Magali Lemes <magali.lemes@canonical.com> > John Cabaj (1): > Revert "UBUNTU: SAUCE: x86/hyperv: temporarily disable CET SS on > SEV-SNP due to a paravisor bug" > > arch/x86/kernel/cpu/mshyperv.c | 21 --------------------- > 1 file changed, 21 deletions(-) >
On 9/6/24 12:43 PM, John Cabaj wrote: > BugLink: https://bugs.launchpad.net/bugs/2079841 > > SRU Justification > > [Impact] > > * LP #2069204 disabled CET Shadow Stack on SEV-SNP due to CPUID emulation bug not being fixed in VMs until October 2024. > * This issue is now fixed, so the patch can be reverted. > > [Fix] > > * Revert "UBUNTU: SAUCE: x86/hyperv: temporarily disable CET SS on SEV-SNP due to a paravisor bug" > > [Test Plan] > > * Compile tested > * Boot tested > > [Regression potential] > > * Reverting back to previous state, so regression very unlikely. > * Changes isolated, minimal regression risk > > [Other info] > > * SF #00387447 > > John Cabaj (1): > Revert "UBUNTU: SAUCE: x86/hyperv: temporarily disable CET SS on > SEV-SNP due to a paravisor bug" > > arch/x86/kernel/cpu/mshyperv.c | 21 --------------------- > 1 file changed, 21 deletions(-) > Applied to noble:linux-azure and oracular:linux-azure master-next branches. Thanks, John
BugLink: https://bugs.launchpad.net/bugs/2079841 SRU Justification [Impact] * LP #2069204 disabled CET Shadow Stack on SEV-SNP due to CPUID emulation bug not being fixed in VMs until October 2024. * This issue is now fixed, so the patch can be reverted. [Fix] * Revert "UBUNTU: SAUCE: x86/hyperv: temporarily disable CET SS on SEV-SNP due to a paravisor bug" [Test Plan] * Compile tested * Boot tested [Regression potential] * Reverting back to previous state, so regression very unlikely. * Changes isolated, minimal regression risk [Other info] * SF #00387447 John Cabaj (1): Revert "UBUNTU: SAUCE: x86/hyperv: temporarily disable CET SS on SEV-SNP due to a paravisor bug" arch/x86/kernel/cpu/mshyperv.c | 21 --------------------- 1 file changed, 21 deletions(-)