On 1 February 2018 at 16:04, Ard Biesheuvel <[email protected]> wrote: > The ARM Trusted Firmware build we have been using up until now was built > with optimizations disabled (which means every variable manipulation > involves a load, the operation itself and a store), and runs with the > MMU disabled, making it needlessly slow. > > This appears to be due to the fact that > a) the page tables are not set up correctly, so not all memory can be > accessed from EL3 > b) the handling of SMC service calls does not take into account that > these calls may be made with the MMU off (e.g., by UEFI PEI). > > These issues have been fixed in the source code, which should hopefully > remove any performance bottlenecks that may become more noticeable now > that we are going to call into the secure firmware more often to perform > Spectre variant 2 mitigations, which have been backported as well. > > So update the binary image to a RELEASE build that was created with > optimizations enabled, and has the above fixes incorporated. > > Contributed-under: TianoCore Contribution Agreement 1.1 > Signed-off-by: Ard Biesheuvel <[email protected]> > --- > Silicon/AMD/Styx/ArmTrustedFirmware.bin | Bin 75344 -> 34320 bytes > 1 file changed, 0 insertions(+), 0 deletions(-) >
Note to Marc: this is the exact image I shared with you as bl31.bin-release earlier today, so if that works as expected, could you report back here please? Thanks. _______________________________________________ edk2-devel mailing list [email protected] https://lists.01.org/mailman/listinfo/edk2-devel
