[Kernel-packages] [Bug 1782209] Re: KVM SnowRidge Split-lock disable
** Description changed: When bit 29 is set in Test Control MSR register 0x33, a #AC execption is generated for split locked accesses at all CPL irrespective of CR0.AM or EFLAGS.AC. This feature can help developers to capture memory accesses that across cachelines with #LOCK assertion. Then developers can reconstruct their program accordingly - Upstream target linux 5.2 + Upstream target linux 5.3 Target Release: 19.10 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1782209 Title: KVM SnowRidge Split-lock disable Status in linux package in Ubuntu: Incomplete Status in qemu package in Ubuntu: New Bug description: When bit 29 is set in Test Control MSR register 0x33, a #AC execption is generated for split locked accesses at all CPL irrespective of CR0.AM or EFLAGS.AC. This feature can help developers to capture memory accesses that across cachelines with #LOCK assertion. Then developers can reconstruct their program accordingly Upstream target linux 5.3 Target Release: 19.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1782209/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1782209] Re: KVM SnowRidge Split-lock disable
** Changed in: linux (Ubuntu) Importance: Undecided => Wishlist ** Changed in: qemu (Ubuntu) Importance: Undecided => Wishlist -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1782209 Title: KVM SnowRidge Split-lock disable Status in linux package in Ubuntu: Incomplete Status in qemu package in Ubuntu: New Bug description: When bit 29 is set in Test Control MSR register 0x33, a #AC execption is generated for split locked accesses at all CPL irrespective of CR0.AM or EFLAGS.AC. This feature can help developers to capture memory accesses that across cachelines with #LOCK assertion. Then developers can reconstruct their program accordingly Upstream target linux 5.2 Target Release: 19.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1782209/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1782209] Re: KVM SnowRidge Split-lock disable
Related QEMU patch can be found at: https://lists.gnu.org/archive/html/qemu-devel/2019-03/msg00507.html and related kvm-unit-test can be found at: https://patchwork.kernel.org/patch/10837677/ -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1782209 Title: KVM SnowRidge Split-lock disable Status in linux package in Ubuntu: Incomplete Status in qemu package in Ubuntu: New Bug description: When bit 29 is set in Test Control MSR register 0x33, a #AC execption is generated for split locked accesses at all CPL irrespective of CR0.AM or EFLAGS.AC. This feature can help developers to capture memory accesses that across cachelines with #LOCK assertion. Then developers can reconstruct their program accordingly Upstream target linux 5.2 Target Release: 19.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1782209/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1782209] Re: KVM SnowRidge Split-lock disable
Hi, I have not seen the kernel changes in 5.2 RCs - is there an update on their progress? Also any updates, links, commits on the related qemu contribution? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1782209 Title: KVM SnowRidge Split-lock disable Status in linux package in Ubuntu: Incomplete Status in qemu package in Ubuntu: New Bug description: When bit 29 is set in Test Control MSR register 0x33, a #AC execption is generated for split locked accesses at all CPL irrespective of CR0.AM or EFLAGS.AC. This feature can help developers to capture memory accesses that across cachelines with #LOCK assertion. Then developers can reconstruct their program accordingly Upstream target linux 5.2 Target Release: 19.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1782209/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1782209] Re: KVM SnowRidge Split-lock disable
** Description changed: When bit 29 is set in Test Control MSR register 0x33, a #AC execption is generated for split locked accesses at all CPL irrespective of CR0.AM or EFLAGS.AC. This feature can help developers to capture memory accesses that across cachelines with #LOCK assertion. Then developers can reconstruct their program accordingly Upstream target linux 5.2 - Target Release: 19.04 + Target Release: 19.10 ** Tags removed: intel-virt-19.04 ** Tags added: intel-virt-19.10 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1782209 Title: KVM SnowRidge Split-lock disable Status in linux package in Ubuntu: Incomplete Status in qemu package in Ubuntu: New Bug description: When bit 29 is set in Test Control MSR register 0x33, a #AC execption is generated for split locked accesses at all CPL irrespective of CR0.AM or EFLAGS.AC. This feature can help developers to capture memory accesses that across cachelines with #LOCK assertion. Then developers can reconstruct their program accordingly Upstream target linux 5.2 Target Release: 19.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1782209/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1782209] Re: KVM SnowRidge Split-lock disable
My questions in comment #1 where no answered directly yet, but this still is using only kernel patches so far, I think it is time to add at least a kernel task. Furthermore it isn't upstream yet and the target being 5.2 is a bit out still, so I'd think you should target 19.10 ** Also affects: linux (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1782209 Title: KVM SnowRidge Split-lock disable Status in linux package in Ubuntu: Incomplete Status in qemu package in Ubuntu: New Bug description: When bit 29 is set in Test Control MSR register 0x33, a #AC execption is generated for split locked accesses at all CPL irrespective of CR0.AM or EFLAGS.AC. This feature can help developers to capture memory accesses that across cachelines with #LOCK assertion. Then developers can reconstruct their program accordingly Upstream target linux 5.2 Target Release: 19.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1782209/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
