diff --git a/services/std_svc/spm_deprecated/spm.mk b/services/std_svc/spm_deprecated/spm.mk index ed36812..3503020 100644 --- a/services/std_svc/spm_deprecated/spm.mk +++ b/services/std_svc/spm_deprecated/spm.mk @@ -21,3 +21,6 @@ # Let the top-level Makefile know that we intend to include a BL32 image NEED_BL32 := yes + +# required so that SPM code executing at S-EL0 can access the timer registers +NS_TIMER_SWITCH := 1 diff --git a/services/std_svc/spm_deprecated/spm_setup.c b/services/std_svc/spm_deprecated/spm_setup.c index e78a42c..beaff94 100644 --- a/services/std_svc/spm_deprecated/spm_setup.c +++ b/services/std_svc/spm_deprecated/spm_setup.c @@ -168,6 +168,9 @@ write_ctx_reg(get_sysregs_ctx(ctx), CTX_VBAR_EL1, SPM_SHIM_EXCEPTIONS_PTR); + write_ctx_reg(get_sysregs_ctx(ctx), CTX_CNTKCTL_EL1, + EL0PTEN_BIT | EL0VTEN_BIT | EL0PCTEN_BIT | EL0VCTEN_BIT); + /* * FPEN: Allow the Secure Partition to access FP/SIMD registers. * Note that SPM will not do any saving/restoring of these registers on