David Dunn ba7bb663f5 KVM: x86: Provide per VM capability for disabling PMU virtualization ...

Add a new capability, KVM_CAP_PMU_CAPABILITY, that takes a bitmask of
settings/features to allow userspace to configure PMU virtualization on
a per-VM basis.  For now, support a single flag, KVM_PMU_CAP_DISABLE,
to allow disabling PMU virtualization for a VM even when KVM is configured
with enable_pmu=true a module level.

To keep KVM simple, disallow changing VM's PMU configuration after vCPUs
have been created.

Signed-off-by: David Dunn <daviddunn@google.com>
Message-Id: <20220223225743.2703915-2-daviddunn@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

2022-02-25 08:20:14 -05:00

..

asm

KVM: x86: Provide per VM capability for disabling PMU virtualization

2022-02-25 08:20:14 -05:00

uapi/asm

KVM: x86: add system attribute to retrieve full set of supported xsave states

2022-01-28 07:33:32 -05:00