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| author | Marc Zyngier <maz@kernel.org> | 2023-08-15 21:39:02 +0300 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2023-08-17 12:00:28 +0300 |
| commit | 03fb54d0aa73cc14e51f6611eb3289e4fec15184 (patch) | |
| tree | 93f719da7b0cc9fdcc8cc15fa90d56b1d10ee825 /arch/arm64/include/asm/kvm_arm.h | |
| parent | a63cf31139b7f41d468dc8ef63dbf6bae213d960 (diff) | |
| download | linux-03fb54d0aa73cc14e51f6611eb3289e4fec15184.tar.xz | |
KVM: arm64: nv: Add support for HCRX_EL2
HCRX_EL2 has an interesting effect on HFGITR_EL2, as it conditions
the traps of TLBI*nXS.
Expand the FGT support to add a new Fine Grained Filter that will
get checked when the instruction gets trapped, allowing the shadow
register to override the trap as needed.
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Jing Zhang <jingzhangos@google.com>
Link: https://lore.kernel.org/r/20230815183903.2735724-29-maz@kernel.org
Diffstat (limited to 'arch/arm64/include/asm/kvm_arm.h')
| -rw-r--r-- | arch/arm64/include/asm/kvm_arm.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/kvm_arm.h b/arch/arm64/include/asm/kvm_arm.h index d229f238c3b6..137f732789c9 100644 --- a/arch/arm64/include/asm/kvm_arm.h +++ b/arch/arm64/include/asm/kvm_arm.h @@ -369,6 +369,11 @@ #define __HDFGWTR_EL2_MASK ~__HDFGWTR_EL2_nMASK #define __HDFGWTR_EL2_nMASK GENMASK(62, 60) +/* Similar definitions for HCRX_EL2 */ +#define __HCRX_EL2_RES0 (GENMASK(63, 16) | GENMASK(13, 12)) +#define __HCRX_EL2_MASK (0) +#define __HCRX_EL2_nMASK (GENMASK(15, 14) | GENMASK(4, 0)) + /* Hyp Prefetch Fault Address Register (HPFAR/HDFAR) */ #define HPFAR_MASK (~UL(0xf)) /* |