Thread (67 messages) 67 messages, 4 authors, 2016-08-04
STALE3619d

[PATCH 11/55] arm64: Add ARM64_HYP_OFFSET_LOW capability

From: Marc Zyngier <hidden>
Date: 2016-07-22 17:28:28
Also in: kvm, kvmarm
Subsystem: arm64 port (aarch64 architecture), the rest · Maintainers: Catalin Marinas, Will Deacon, Linus Torvalds

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 <redacted>
Signed-off-by: Christoffer Dall <redacted>
---
 arch/arm64/include/asm/cpufeature.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/include/asm/cpufeature.h b/arch/arm64/include/asm/cpufeature.h
index 224efe7..d40edbb 100644
--- 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__
 
-- 
2.8.1
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