On Mon, Dec 13, 2021 at 08:56:49PM +0800, Min Xu wrote: > RFC： https://bugzilla.tianocore.org/show_bug.cgi?id=3429 > > If TDX is enabled then we do not support DMA operation in PEI phase. > This is mainly because DMA in TDX guest requires using bounce buffer > (which need to allocate dynamic memory and allocating a PAGE size'd > buffer can be challenge in PEI phase). > > Cc: Ard Biesheuvel <[email protected]> > Cc: Jordan Justen <[email protected]> > Cc: Brijesh Singh <[email protected]> > Cc: Erdem Aktas <[email protected]> > Cc: James Bottomley <[email protected]> > Cc: Jiewen Yao <[email protected]> > Cc: Tom Lendacky <[email protected]> > Cc: Gerd Hoffmann <[email protected]> > Signed-off-by: Min Xu <[email protected]>
Acked-by: Gerd Hoffmann <[email protected]> -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#84872): https://edk2.groups.io/g/devel/message/84872 Mute This Topic: https://groups.io/mt/87696590/21656 Group Owner: [email protected] Unsubscribe: https://edk2.groups.io/g/devel/unsub [[email protected]] -=-=-=-=-=-=-=-=-=-=-=-
