On Tue, 17 Aug 2021 09:11:29 +0100, Fuad Tabba <tabba@xxxxxxxxxx> wrote: > > Add hardware configuration register bit definitions for HCR_EL2 > and MDCR_EL2. Future patches toggle these hyp configuration > register bits to trap on certain accesses. > > No functional change intended. > > Acked-by: Will Deacon <will@xxxxxxxxxx> > Signed-off-by: Fuad Tabba <tabba@xxxxxxxxxx> > --- > arch/arm64/include/asm/kvm_arm.h | 22 ++++++++++++++++++++++ > 1 file changed, 22 insertions(+) > > diff --git a/arch/arm64/include/asm/kvm_arm.h b/arch/arm64/include/asm/kvm_arm.h > index a928b2dc0b0f..327120c0089f 100644 > --- a/arch/arm64/include/asm/kvm_arm.h > +++ b/arch/arm64/include/asm/kvm_arm.h > @@ -12,8 +12,13 @@ > #include <asm/types.h> > > /* Hyp Configuration Register (HCR) bits */ > + > +#define HCR_TID5 (UL(1) << 58) > +#define HCR_DCT (UL(1) << 57) > #define HCR_ATA_SHIFT 56 > #define HCR_ATA (UL(1) << HCR_ATA_SHIFT) > +#define HCR_AMVOFFEN (UL(1) << 51) > +#define HCR_FIEN (UL(1) << 47) > #define HCR_FWB (UL(1) << 46) > #define HCR_API (UL(1) << 41) > #define HCR_APK (UL(1) << 40) > @@ -56,6 +61,7 @@ > #define HCR_PTW (UL(1) << 2) > #define HCR_SWIO (UL(1) << 1) > #define HCR_VM (UL(1) << 0) > +#define HCR_RES0 ((UL(1) << 48) | (UL(1) << 39)) > > /* > * The bits we set in HCR: > @@ -277,11 +283,21 @@ > #define CPTR_EL2_TZ (1 << 8) > #define CPTR_NVHE_EL2_RES1 0x000032ff /* known RES1 bits in CPTR_EL2 (nVHE) */ > #define CPTR_EL2_DEFAULT CPTR_NVHE_EL2_RES1 > +#define CPTR_NVHE_EL2_RES0 (GENMASK(63, 32) | \ > + GENMASK(29, 21) | \ > + GENMASK(19, 14) | \ > + BIT(11)) > > /* Hyp Debug Configuration Register bits */ > #define MDCR_EL2_E2TB_MASK (UL(0x3)) > #define MDCR_EL2_E2TB_SHIFT (UL(24)) > +#define MDCR_EL2_HPMFZS (UL(1) << 36) > +#define MDCR_EL2_HPMFZO (UL(1) << 29) > +#define MDCR_EL2_MTPME (UL(1) << 28) > +#define MDCR_EL2_TDCC (UL(1) << 27) > +#define MDCR_EL2_HCCD (UL(1) << 23) Nit: If you're aiming for completeness, you're missing MDCR_EL2.HLP (bit 26). > #define MDCR_EL2_TTRF (UL(1) << 19) > +#define MDCR_EL2_HPMD (UL(1) << 17) > #define MDCR_EL2_TPMS (UL(1) << 14) > #define MDCR_EL2_E2PB_MASK (UL(0x3)) > #define MDCR_EL2_E2PB_SHIFT (UL(12)) > @@ -293,6 +309,12 @@ > #define MDCR_EL2_TPM (UL(1) << 6) > #define MDCR_EL2_TPMCR (UL(1) << 5) > #define MDCR_EL2_HPMN_MASK (UL(0x1F)) > +#define MDCR_EL2_RES0 (GENMASK(63, 37) | \ > + GENMASK(35, 30) | \ > + GENMASK(25, 24) | \ > + GENMASK(22, 20) | \ > + BIT(18) | \ > + GENMASK(16, 15)) > > /* For compatibility with fault code shared with 32-bit */ > #define FSC_FAULT ESR_ELx_FSC_FAULT Thanks, M. -- Without deviation from the norm, progress is not possible. _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
