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authorLinus Torvalds2019-05-17 19:33:30 +0200
committerLinus Torvalds2019-05-17 19:33:30 +0200
commit0ef0fd351550130129bbdb77362488befd7b69d2 (patch)
tree23186172f5f85c06e18e3ee1a9619879df03c5df /arch/arm64/Kconfig
parentMerge tag 'nds32-for-linus-5.2-rc1' of git://git.kernel.org/pub/scm/linux/ker... (diff)
parentkvm: fix compilation on aarch64 (diff)
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM updates from Paolo Bonzini: "ARM: - support for SVE and Pointer Authentication in guests - PMU improvements POWER: - support for direct access to the POWER9 XIVE interrupt controller - memory and performance optimizations x86: - support for accessing memory not backed by struct page - fixes and refactoring Generic: - dirty page tracking improvements" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (155 commits) kvm: fix compilation on aarch64 Revert "KVM: nVMX: Expose RDPMC-exiting only when guest supports PMU" kvm: x86: Fix L1TF mitigation for shadow MMU KVM: nVMX: Disable intercept for FS/GS base MSRs in vmcs02 when possible KVM: PPC: Book3S: Remove useless checks in 'release' method of KVM device KVM: PPC: Book3S HV: XIVE: Fix spelling mistake "acessing" -> "accessing" KVM: PPC: Book3S HV: Make sure to load LPID for radix VCPUs kvm: nVMX: Set nested_run_pending in vmx_set_nested_state after checks complete tests: kvm: Add tests for KVM_SET_NESTED_STATE KVM: nVMX: KVM_SET_NESTED_STATE - Tear down old EVMCS state before setting new state tests: kvm: Add tests for KVM_CAP_MAX_VCPUS and KVM_CAP_MAX_CPU_ID tests: kvm: Add tests to .gitignore KVM: Introduce KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2 KVM: Fix kvm_clear_dirty_log_protect off-by-(minus-)one KVM: Fix the bitmap range to copy during clear dirty KVM: arm64: Fix ptrauth ID register masking logic KVM: x86: use direct accessors for RIP and RSP KVM: VMX: Use accessors for GPRs outside of dedicated caching logic KVM: x86: Omit caching logic for always-available GPRs kvm, x86: Properly check whether a pfn is an MMIO or not ...
Diffstat (limited to 'arch/arm64/Kconfig')
-rw-r--r--arch/arm64/Kconfig6
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 69a59a5d1143..4780eb7af842 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1341,6 +1341,7 @@ menu "ARMv8.3 architectural features"
config ARM64_PTR_AUTH
bool "Enable support for pointer authentication"
default y
+ depends on !KVM || ARM64_VHE
help
Pointer authentication (part of the ARMv8.3 Extensions) provides
instructions for signing and authenticating pointers against secret
@@ -1354,8 +1355,9 @@ config ARM64_PTR_AUTH
context-switched along with the process.
The feature is detected at runtime. If the feature is not present in
- hardware it will not be advertised to userspace nor will it be
- enabled.
+ 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.
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