[PATCH v4 05/23] arm64: Add ARM64_HAS_VIRT_HOST_EXTN feature
flat view
From: Will Deacon <hidden>
Date: 2016-02-15 16:10:44
Also in:
kvm, kvmarm, lkml
On Thu, Feb 11, 2016 at 06:39:46PM +0000, Marc Zyngier wrote:
quoted hunk ↗ jump to hunk
Add a new ARM64_HAS_VIRT_HOST_EXTN features to indicate that the CPU has the ARMv8.1 VHE capability. This will be used to trigger kernel patching in KVM. Acked-by: Christoffer Dall <redacted> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Marc Zyngier <redacted> --- arch/arm64/include/asm/cpufeature.h | 3 ++- arch/arm64/kernel/cpufeature.c | 11 +++++++++++ 2 files changed, 13 insertions(+), 1 deletion(-)diff --git a/arch/arm64/include/asm/cpufeature.h b/arch/arm64/include/asm/cpufeature.h index 8f271b8..c705d6a 100644 --- a/arch/arm64/include/asm/cpufeature.h +++ b/arch/arm64/include/asm/cpufeature.h@@ -30,8 +30,9 @@ #define ARM64_HAS_LSE_ATOMICS 5 #define ARM64_WORKAROUND_CAVIUM_23154 6 #define ARM64_WORKAROUND_834220 7 +#define ARM64_HAS_VIRT_HOST_EXTN 8 -#define ARM64_NCAPS 8 +#define ARM64_NCAPS 9
Just a heads up, but this conflicts with the for-next/core branch, where I used cap 8 to identify the absence of a h/w prefetcher. Will