diff options
| author | Ard Biesheuvel <ardb@kernel.org> | 2024-02-14 13:29:15 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2024-02-16 12:42:38 +0000 |
| commit | db95ea787bd19be666ba41733259ffea65963bff (patch) | |
| tree | 4b5b859adaad022e80f6140f4bd62d02b470c0e1 /arch/arm64/include/asm/pgtable-hwdef.h | |
| parent | 7ac8d5b2423cc0112ac2519276610865142a577b (diff) | |
arm64: mm: Wire up TCR.DS bit to PTE shareability fields
When LPA2 is enabled, bits 8 and 9 of page and block descriptors become
part of the output address instead of carrying shareability attributes
for the region in question.
So avoid setting these bits if TCR.DS == 1, which means LPA2 is enabled.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20240214122845.2033971-74-ardb+git@google.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/include/asm/pgtable-hwdef.h')
| -rw-r--r-- | arch/arm64/include/asm/pgtable-hwdef.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/pgtable-hwdef.h b/arch/arm64/include/asm/pgtable-hwdef.h index e4944d517c99..b770f98fc0b5 100644 --- a/arch/arm64/include/asm/pgtable-hwdef.h +++ b/arch/arm64/include/asm/pgtable-hwdef.h @@ -284,6 +284,7 @@ #define TCR_E0PD1 (UL(1) << 56) #define TCR_TCMA0 (UL(1) << 57) #define TCR_TCMA1 (UL(1) << 58) +#define TCR_DS (UL(1) << 59) /* * TTBR. |