On Thursday 23 Jan 2020 at 17:04:32 (+0000), Valentin Schneider wrote: > On 18/12/2019 18:26, Ionela Voinescu wrote: > > +/* > > + * reset_amuserenr_el0 - reset AMUSERENR_EL0 if AMUv1 present > > + */ > > + .macro reset_amuserenr_el0, tmpreg > > + mrs \tmpreg, id_aa64pfr0_el1 // Check ID_AA64PFR0_EL1 > > + ubfx \tmpreg, \tmpreg, #ID_AA64PFR0_AMU_SHIFT, #4 > > + cbz \tmpreg, 9000f // Skip if no AMU present > > + msr_s SYS_AMUSERENR_EL0, xzr // Disable AMU access from EL0 > > +9000: > > AIUI you can steer away from the obscure numbering scheme and define the > label using the macro counter: > > cbz \tmpreg, .Lskip_\@ > [...] > .Lskip_\@: > .endm > Cool, good to know! Although calling it "obscure numbering scheme" does make it more appealing to use. Thanks, I'll change it in the next version :). Ionela. > > > + .endm
