Public bug reported: SRU Justification:
[Impact] PSCI v1.3 adds support for SYSTEM_OFF2 which is analogous to ACPI S4 state. This will allow hosting environments to determine that a guest is hibernated rather than just powered off, and ensure that they preserve the virtual environment appropriately to allow the guest to resume safely (or bump the hardware_signature in the FACS to trigger a clean reboot instead). [Fix] This adds support for it to KVM, and to the guest hibernate code. https://lore.kernel.org/lkml/20240312135958.727765-1-dw...@infradead.org [Test Plan] AWS tested. [Where problems could occur] If the final spec of the PSCI v1.3 changes, there may be changes required to this patch series. [Other Info] SF# 00383181 ** Affects: linux-aws (Ubuntu) Importance: Undecided Assignee: Philip Cox (philcox) Status: New -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-aws in Ubuntu. https://bugs.launchpad.net/bugs/2061006 Title: aws: KVM and guest support for the PSCI SYSTEM_OFF2 (hibernate) call Status in linux-aws package in Ubuntu: New Bug description: SRU Justification: [Impact] PSCI v1.3 adds support for SYSTEM_OFF2 which is analogous to ACPI S4 state. This will allow hosting environments to determine that a guest is hibernated rather than just powered off, and ensure that they preserve the virtual environment appropriately to allow the guest to resume safely (or bump the hardware_signature in the FACS to trigger a clean reboot instead). [Fix] This adds support for it to KVM, and to the guest hibernate code. https://lore.kernel.org/lkml/20240312135958.727765-1-dw...@infradead.org [Test Plan] AWS tested. [Where problems could occur] If the final spec of the PSCI v1.3 changes, there may be changes required to this patch series. [Other Info] SF# 00383181 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-aws/+bug/2061006/+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
