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arm64: KVM: Define HYP offset masks

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Define the two possible HYP VA regions in terms of VA_BITS,
and keep HYP_PAGE_OFFSET_MASK as a temporary compatibility
definition.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
This commit is contained in:
Marc Zyngier 2016-06-30 18:40:39 +01:00 committed by Christoffer Dall
parent 853c3b21ff
commit d53d9bc652
1 changed files with 6 additions and 2 deletions
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8
arch/arm64/include/asm/kvm_mmu.h
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@ -68,8 +68,12 @@
* functionality is already mapped as part of the main kernel
* mappings, and none of this applies in that case.
*/
#define HYP_PAGE_OFFSET_SHIFT VA_BITS
#define HYP_PAGE_OFFSET_MASK ((UL(1) << HYP_PAGE_OFFSET_SHIFT) - 1)
#define HYP_PAGE_OFFSET_HIGH_MASK ((UL(1) << VA_BITS) - 1)
#define HYP_PAGE_OFFSET_LOW_MASK ((UL(1) << (VA_BITS - 1)) - 1)
/* Temporary compat define */
#define HYP_PAGE_OFFSET_MASK HYP_PAGE_OFFSET_HIGH_MASK
/*
* Our virtual mapping for the idmap-ed MMU-enable code. Must be