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Merge "fix(rmmd): enable sme using sme_enable_per_world" into integration

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Soby Mathew 2023-11-02 19:52:22 +01:00 • committed by TrustedFirmware Code Review
commit 93823fb6ec
1 changed files with 9 additions and 6 deletions
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15
services/std_svc/rmmd/rmmd_main.c
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@ -125,17 +125,13 @@ static void manage_extensions_realm(cpu_context_t *ctx)
pmuv3_enable(ctx);
/*
* If SME/SME2 is supported and enabled for NS world, then enables SME
* for Realm world. RMM will save/restore required registers that are
* shared with SVE/FPU so that Realm can use FPU or SVE.
* Enable access to TPIDR2_EL0 if SME/SME2 is enabled for Non Secure world.
*/
if (is_feat_sme_supported()) {
/* sme_enable() also enables SME2 if supported by hardware */
sme_enable(ctx);
}
}
#if IMAGE_BL31
static void manage_extensions_realm_per_world(void)
{
if (is_feat_sve_supported()) {
@ -152,8 +148,15 @@ static void manage_extensions_realm_per_world(void)
sys_reg_trace_disable_per_world(&per_world_context[CPU_CONTEXT_REALM]);
}
/*
* If SME/SME2 is supported and enabled for NS world, then disable trapping
* of SME instructions for Realm world. RMM will save/restore required
* registers that are shared with SVE/FPU so that Realm can use FPU or SVE.
*/
if (is_feat_sme_supported()) {
sme_enable_per_world(&per_world_context[CPU_CONTEXT_REALM]);
}
}
#endif /* IMAGE_BL31 */
/*******************************************************************************
* Jump to the RMM for the first time.