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| author | Mario Smarduch <m.smarduch@samsung.com> | 2015-01-16 00:58:59 +0100 |
|---|---|---|
| committer | Christoffer Dall <christoffer.dall@linaro.org> | 2015-01-16 14:42:48 +0100 |
| commit | 8199ed0e7c28ece79674a9fbba3208e93395a646 (patch) | |
| tree | 1d6fbae21b2cc6d7624b149da7b0d8cf3d326683 /arch/arm64/include/asm/pgtable-hwdef.h | |
| parent | KVM: arm: page logging 2nd stage fault handling (diff) | |
| download | linux-8199ed0e7c28ece79674a9fbba3208e93395a646.tar.xz linux-8199ed0e7c28ece79674a9fbba3208e93395a646.zip | |
KVM: arm64: ARMv8 header changes for page logging
This patch adds arm64 helpers to write protect pmds/ptes and retrieve
permissions while logging dirty pages. Also adds prototype to write protect
a memory slot and adds a pmd define to check for read-only pmds.
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Mario Smarduch <m.smarduch@samsung.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 88174e0bfafe..5f930cc9ea83 100644 --- a/arch/arm64/include/asm/pgtable-hwdef.h +++ b/arch/arm64/include/asm/pgtable-hwdef.h @@ -119,6 +119,7 @@ #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 PMD_S2_RDONLY (_AT(pmdval_t, 1) << 6) /* HAP[2:1] */ #define PMD_S2_RDWR (_AT(pmdval_t, 3) << 6) /* HAP[2:1] */ /* |