On Thu, Feb 11, 2016 at 06:39:46PM +0000, Marc Zyngier wrote: > 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 <[email protected]> > Acked-by: Catalin Marinas <[email protected]> > Signed-off-by: Marc Zyngier <[email protected]> > --- > 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
