On Wed, Jan 10, 2024 at 04:43:47PM +0000, West, Catharine wrote: > Disabling cache by default results in violation of BTG protections (if BTG > enabled). > > BIOS cannot assume that cache is disabled before it executes as ACM may be > required to enable NEM. > > Whatever solution needs to be done here cannot evict ACM-enabled NEM.
Well, it's OVMF in a virtual machine. No boot guard involved. So we could probably go for a OVMF-specific patch here. But I'd prefer to figure what exactly is happening here before going down that route. An extreme slowdown just because we flip that bit doesn't make sense to me. > Why is boot time increasing? Not clear. It seems to be the lzma uncompress of the firmware volume in rom / pflash which is very slow. Also it is apparently only triggered in case pci device assignment is used. take care, Gerd -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#113996): https://edk2.groups.io/g/devel/message/113996 Mute This Topic: https://groups.io/mt/100367559/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
