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(parent: eceab50) | patch
x86/hyper-v: detect nested features
authorVitaly Kuznetsov <vkuznets@redhat.com>
Tue, 20 Mar 2018 14:02:10 +0000 (15:02 +0100)
committerRadim Krčmář <rkrcmar@redhat.com>
Wed, 28 Mar 2018 20:47:06 +0000 (22:47 +0200)
commitced50748a1bdd7f87e792f2eaed57c8f0ea87c8f
tree428d7c84c05c36ff815298634f1dbe2f76fbbd34tree | snapshot
parenteceab508b08078f2d0125489765d94425b5eec0fcommit | diff
x86/hyper-v: detect nested features

TLFS 5.0 says: "Support for an enlightened VMCS interface is reported with
CPUID leaf 0x40000004. If an enlightened VMCS interface is supported,
 additional nested enlightenments may be discovered by reading the CPUID
leaf 0x4000000A (see 2.4.11)."

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
arch/x86/include/asm/hyperv-tlfs.h diff | blob | history
arch/x86/include/asm/mshyperv.h diff | blob | history
arch/x86/kernel/cpu/mshyperv.c diff | blob | history
Linux Kernel Source Tree.