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authorJintack Lim <jintack.lim@linaro.org>2023-02-09 20:58:03 +0300
committerOliver Upton <oliver.upton@linux.dev>2023-02-11 12:16:11 +0300
commit675cabc89900732a8a90f19a3c6ed314327a96e0 (patch)
treeaf0c74c5ab86ada3c06b033718a13e653e35a16d /arch/arm64/tools
parent5dc4c995db9eb45f6373a956eb1f69460e69e6d4 (diff)
downloadlinux-675cabc89900732a8a90f19a3c6ed314327a96e0.tar.xz
arm64: Add ARM64_HAS_NESTED_VIRT cpufeature
Add a new ARM64_HAS_NESTED_VIRT feature to indicate that the CPU has the ARMv8.3 nested virtualization capability, together with the 'kvm-arm.mode=nested' command line option. This will be used to support nested virtualization in KVM. Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Jintack Lim <jintack.lim@linaro.org> Signed-off-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Christoffer Dall <christoffer.dall@arm.com> [maz: moved the command-line option to kvm-arm.mode] Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20230209175820.1939006-2-maz@kernel.org Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Diffstat (limited to 'arch/arm64/tools')
-rw-r--r--arch/arm64/tools/cpucaps1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/tools/cpucaps b/arch/arm64/tools/cpucaps
index dfeb2c51e257..1af77a3657f7 100644
--- a/arch/arm64/tools/cpucaps
+++ b/arch/arm64/tools/cpucaps
@@ -31,6 +31,7 @@ HAS_GENERIC_AUTH_IMP_DEF
HAS_IRQ_PRIO_MASKING
HAS_LDAPR
HAS_LSE_ATOMICS
+HAS_NESTED_VIRT
HAS_NO_FPSIMD
HAS_NO_HW_PREFETCH
HAS_PAN