On 1/24/24 18:46, Kinney, Michael D wrote: > Hi Laszlo, > > Yes. I can add more details in the commit message. > > The impact is for ACPI S4. There are many reasons why the set of > HOBs passed into the DXE Core may change from boot to boot or that > allocations in the early DXE init phase should change where the > memory type information bins are allocated. > > ACPI S4 does do a power cycle and it is possible to do FW updates > or FW setup config changes between an S4 save and S4 resume operation. > > It is even possible for one OS to do S4 save. Reboot the system > to boot a completely different OS. Reboot again and do an S4 resume > of the original OS. > > If a platform chooses to enable this feature, the number of scenarios > that an S4 resume can fail is reduced.
Awesome info, I couldn't have imagined. (I never use, or develop for, ACPI S4.) Thanks! Laszlo -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#114461): https://edk2.groups.io/g/devel/message/114461 Mute This Topic: https://groups.io/mt/103918464/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/leave/9847357/21656/1706620634/xyzzy [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
