diff options
| author | Marc Zyngier <maz@kernel.org> | 2019-01-02 10:21:29 +0000 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2020-07-07 09:27:15 +0100 |
| commit | c10bc62ae4d2135c9db40e96a8e994164faee531 (patch) | |
| tree | 50936b23b6ae02713b81f74f11f896a94b3f49c6 /arch/arm64/include/asm/stage2_pgtable.h | |
| parent | 6fcfdf6d72898d1c5118d7dd3d3d38690e2f6a64 (diff) | |
arm64: Add level-hinted TLB invalidation helper
Add a level-hinted TLB invalidation helper that only gets used if
ARMv8.4-TTL gets detected.
Reviewed-by: Alexandru Elisei <alexandru.elisei@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'arch/arm64/include/asm/stage2_pgtable.h')
| -rw-r--r-- | arch/arm64/include/asm/stage2_pgtable.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/stage2_pgtable.h b/arch/arm64/include/asm/stage2_pgtable.h index b767904f28b1..996bf98f0cab 100644 --- a/arch/arm64/include/asm/stage2_pgtable.h +++ b/arch/arm64/include/asm/stage2_pgtable.h @@ -256,4 +256,13 @@ stage2_pgd_addr_end(struct kvm *kvm, phys_addr_t addr, phys_addr_t end) return (boundary - 1 < end - 1) ? boundary : end; } +/* + * Level values for the ARMv8.4-TTL extension, mapping PUD/PMD/PTE and + * the architectural page-table level. + */ +#define S2_NO_LEVEL_HINT 0 +#define S2_PUD_LEVEL 1 +#define S2_PMD_LEVEL 2 +#define S2_PTE_LEVEL 3 + #endif /* __ARM64_S2_PGTABLE_H_ */ |