Djam/arm-trusted-firmware
1
0
Fork 0
mirror of https://github.com/ARM-software/arm-trusted-firmware.git synced 2025-04-21 03:54:34 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

fix(cpufeat): add feat_hcx check before enabling FEAT_MOPS

Browse source 
This patch also checks for FEAT_HCX before enabling FEAT_MOPS
when INIT_UNUSED_NS_EL1 = 1 and adds build dependency check.

Signed-off-by: Arvind Ram Prakash <arvind.ramprakash@arm.com>
Change-Id: Iff4a068aa392fc8d29e2e4da7a2e7df0b3104e65
This commit is contained in:
Arvind Ram Prakash 2025-03-12 16:45:05 -05:00
parent a7d150757f
commit 484befbfcb
2 changed files with 9 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
Makefile
View file

@ -1021,6 +1021,14 @@ ifeq (${ENABLE_SVE_FOR_SWD},1)
endif
endif
# Enabling FEAT_MOPS requires access to hcrx_el2 registers which is
# available only when FEAT_HCX is enabled.
ifneq (${ENABLE_FEAT_MOPS},0)
ifeq (${ENABLE_FEAT_HCX},0)
$(error "ENABLE_FEAT_MOPS requires ENABLE_FEAT_HCX")
endif
endif
# Enabling SVE for both the worlds typically requires the context
# management of SVE registers. The only exception being SPMC at S-EL2.
ifeq (${ENABLE_SVE_FOR_SWD}, 1)

2
lib/el3_runtime/aarch64/context_mgmt.c
View file

@ -905,7 +905,7 @@ static void manage_extensions_nonsecure_el2_unused(void)
sme_init_el2_unused();
}
if (is_feat_mops_supported()) {
if (is_feat_mops_supported() && is_feat_hcx_supported()) {
write_hcrx_el2(read_hcrx_el2() | HCRX_EL2_MSCEn_BIT);
}