derek/gem5
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

system-arm: Enable SME in the bootloader

Browse Source 
In addition to SVE (which was already being enabled by the bootloader)
we also enable SME to allow lower ELs to use it.

Jira Issue: https://gem5.atlassian.net/browse/GEM5-1289

Change-Id: I7078a80e9a857c7cf91e3c1e52fe3812fa422394
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/64341
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
This commit is contained in:
Sascha Bischoff
2022-08-03 17:21:48 +01:00
committed by Giacomo Travaglini
parent c694d8589f
commit b860e2039b
1 changed files with 1 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
system/arm/bootloader/arm64/boot.S
View File

@@ -64,6 +64,7 @@ _start:
msr scr_el3, x0 msr scr_el3, x0
mov x0, #(1 << 8) // Disable SVE trap to EL3 mov x0, #(1 << 8) // Disable SVE trap to EL3
orr x0, x0, #(1 << 12) // Disable SME trap to EL3
msr cptr_el3, x0 // Disable copro. traps to EL3 msr cptr_el3, x0 // Disable copro. traps to EL3
/* /*