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KVM: arm: Add initial dirty page locking support

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Add support for initial write protection of VM memslots. This patch
series assumes that huge PUDs will not be used in 2nd stage tables, which is
always valid on ARMv7

Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Mario Smarduch <m.smarduch@samsung.com>
This commit is contained in:
Mario Smarduch
2015-01-15 15:58:56 -08:00
committed by Christoffer Dall
parent 72fc36b600
commit c64735554c
4 changed files with 159 additions and 0 deletions
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arch/arm/include/asm/pgtable-3level.h
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@@ -130,6 +130,7 @@
#define L_PTE_S2_RDONLY (_AT(pteval_t, 1) << 6) /* HAP[1] */
#define L_PTE_S2_RDWR (_AT(pteval_t, 3) << 6) /* HAP[2:1] */
#define L_PMD_S2_RDONLY (_AT(pmdval_t, 1) << 6) /* HAP[1] */
#define L_PMD_S2_RDWR (_AT(pmdval_t, 3) << 6) /* HAP[2:1] */
/*