diff options
| author |   Marc Zyngier <marc.zyngier@arm.com> | 2017-10-23 17:11:18 +0100 |
|---|---|---|
| committer |   Christoffer Dall <christoffer.dall@linaro.org> | 2018-01-08 15:20:44 +0100 |
| commit | fefb876b9b96fa7e4ed3d906979ea45b4cf07349 (patch) | |
| tree | bafcdae70bf8b08731ff23e7942046c43c01008c /arch | |
| parent | arm: KVM: Add optimized PIPT icache flushing (diff) | |
| download | linux-dev-fefb876b9b96fa7e4ed3d906979ea45b4cf07349.tar.xz linux-dev-fefb876b9b96fa7e4ed3d906979ea45b4cf07349.zip | |
arm64: KVM: PTE/PMD S2 XN bit definition
As we're about to make S2 page-tables eXecute Never by default,
add the required bits for both PMDs and PTEs.
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm64/include/asm/pgtable-hwdef.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/pgtable-hwdef.h b/arch/arm64/include/asm/pgtable-hwdef.h index eb0c2bd90de9..af035331fb09 100644 --- a/arch/arm64/include/asm/pgtable-hwdef.h +++ b/arch/arm64/include/asm/pgtable-hwdef.h @@ -177,9 +177,11 @@ */ #define PTE_S2_RDONLY (_AT(pteval_t, 1) << 6) /* HAP[2:1] */ #define PTE_S2_RDWR (_AT(pteval_t, 3) << 6) /* HAP[2:1] */ +#define PTE_S2_XN (_AT(pteval_t, 2) << 53) /* XN[1:0] */ #define PMD_S2_RDONLY (_AT(pmdval_t, 1) << 6) /* HAP[2:1] */ #define PMD_S2_RDWR (_AT(pmdval_t, 3) << 6) /* HAP[2:1] */ +#define PMD_S2_XN (_AT(pmdval_t, 2) << 53) /* XN[1:0] */ /* * Memory Attribute override for Stage-2 (MemAttr[3:0]) |