[RFC V3 04/13] arm64/mm: Add FEAT_LPA2 specific VTCR_EL2.DS field

[Anshuman Khandual]

As per ARM ARM (0487G.A) VTCR_EL2.DS fields controls whether 52 bit IPA and
output physical address get supported on 4K and 16K page size configuration
when FEAT_LPA2 is known to have been implemented. This adds VTCR_DS field
definition which would be used when FEAT_LPA2 gets enabled in Stage-2.

Signed-off-by: Anshuman Khandual <anshuman.khandual@xxxxxxx>
---
 arch/arm64/include/asm/kvm_arm.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/include/asm/kvm_arm.h b/arch/arm64/include/asm/kvm_arm.h
index 327120c..e5c4236 100644
--- a/arch/arm64/include/asm/kvm_arm.h
+++ b/arch/arm64/include/asm/kvm_arm.h
@@ -105,6 +105,7 @@
 			 TCR_EL2_ORGN0_MASK | TCR_EL2_IRGN0_MASK | TCR_EL2_T0SZ_MASK)
 
 /* VTCR_EL2 Registers bits */
+#define VTCR_EL2_DS		(1UL << 32)
 #define VTCR_EL2_RES1		(1U << 31)
 #define VTCR_EL2_HD		(1 << 22)
 #define VTCR_EL2_HA		(1 << 21)
-- 
2.7.4