arm64: Add ARM64_HYP_OFFSET_LOW capability

As we need to indicate to the rest of the kernel which region of
the HYP VA space is safe to use, add a capability that will
indicate that KVM should use the [VA_BITS-2:0] range.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>

diff --git a/arch/arm64/include/asm/cpufeature.h b/arch/arm64/include/asm/cpufeature.h
index 224efe730e4614b4ffd6ab105bacf3de6d6890db..d40edbb6ef2300b8c6a66d129c9842dfad8ac18c 100644 (file)
--- a/arch/arm64/include/asm/cpufeature.h
+++ b/arch/arm64/include/asm/cpufeature.h
@@ -36,8 +36,9 @@
 #define ARM64_HAS_VIRT_HOST_EXTN               11
 #define ARM64_WORKAROUND_CAVIUM_27456          12
 #define ARM64_HAS_32BIT_EL0                    13
+#define ARM64_HYP_OFFSET_LOW                   14
 
-#define ARM64_NCAPS                            14
+#define ARM64_NCAPS                            15
 
 #ifndef __ASSEMBLY__