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| author |   Marc Zyngier <maz@kernel.org> | 2020-07-28 16:02:21 +0100 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2020-07-28 16:02:21 +0100 |
| commit | fc279329a8aecfee50e010312c2dc373ab6810fb (patch) | |
| tree | e16127c295734e861b64ba72aa24d906e1460251 /arch/arm64/Kconfig | |
| parent | Merge branch 'kvm-arm64/pre-nv-5.9' into kvmarm-master/next-WIP (diff) | |
| parent | KVM: arm64: Simplify PtrAuth alternative patching (diff) | |
| download | wireguard-linux-fc279329a8aecfee50e010312c2dc373ab6810fb.tar.xz wireguard-linux-fc279329a8aecfee50e010312c2dc373ab6810fb.zip | |
Merge branch 'kvm-arm64/ptrauth-nvhe' into kvmarm-master/next-WIP
Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'arch/arm64/Kconfig')
| -rw-r--r-- | arch/arm64/Kconfig | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 66dc41fd49f2..27cfac561745 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -1516,7 +1516,6 @@ menu "ARMv8.3 architectural features" config ARM64_PTR_AUTH bool "Enable support for pointer authentication" default y - depends on !KVM || ARM64_VHE depends on (CC_HAS_SIGN_RETURN_ADDRESS || CC_HAS_BRANCH_PROT_PAC_RET) && AS_HAS_PAC # Modern compilers insert a .note.gnu.property section note for PAC # which is only understood by binutils starting with version 2.33.1. @@ -1543,8 +1542,7 @@ config ARM64_PTR_AUTH The feature is detected at runtime. If the feature is not present in hardware it will not be advertised to userspace/KVM guest nor will it - be enabled. However, KVM guest also require VHE mode and hence - CONFIG_ARM64_VHE=y option to use this feature. + be enabled. If the feature is present on the boot CPU but not on a late CPU, then the late CPU will be parked. Also, if the boot CPU does not have |