On Fri, Oct 05, 2018 at 09:47:38AM +0100, Kristina Martsenko wrote: > From: Mark Rutland <mark.rutland@xxxxxxx> > > The ARMv8.3 pointer authentication extension adds: > > * New fields in ID_AA64ISAR1 to report the presence of pointer > authentication functionality. > > * New control bits in SCTLR_ELx to enable this functionality. > > * New system registers to hold the keys necessary for this > functionality. > > * A new ESR_ELx.EC code used when the new instructions are affected by > configurable traps > > This patch adds the relevant definitions to <asm/sysreg.h> and > <asm/esr.h> for these, to be used by subsequent patches. > > Signed-off-by: Mark Rutland <mark.rutland@xxxxxxx> > Signed-off-by: Kristina Martsenko <kristina.martsenko@xxxxxxx> > Cc: Catalin Marinas <catalin.marinas@xxxxxxx> > Cc: Marc Zyngier <marc.zyngier@xxxxxxx> > Cc: Suzuki K Poulose <suzuki.poulose@xxxxxxx> > Cc: Will Deacon <will.deacon@xxxxxxx> > --- > arch/arm64/include/asm/esr.h | 3 ++- > arch/arm64/include/asm/sysreg.h | 30 ++++++++++++++++++++++++++++++ > 2 files changed, 32 insertions(+), 1 deletion(-) > > diff --git a/arch/arm64/include/asm/esr.h b/arch/arm64/include/asm/esr.h > index ce70c3ffb993..022785162281 100644 > --- a/arch/arm64/include/asm/esr.h > +++ b/arch/arm64/include/asm/esr.h > @@ -30,7 +30,8 @@ > #define ESR_ELx_EC_CP14_LS (0x06) > #define ESR_ELx_EC_FP_ASIMD (0x07) > #define ESR_ELx_EC_CP10_ID (0x08) > -/* Unallocated EC: 0x09 - 0x0B */ > +#define ESR_ELx_EC_PAC (0x09) Really minor nit: but shouldn't this be ESR_EL2_EC_PAC, since this trap can't occur at EL1 afaict? Rest of the patch looks good: Reviewed-by: Will Deacon <will.deacon@xxxxxxx> Will
