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SubjectRe: [PATCH v3 4/9] KVM: VMX: Configure runtime hooks using vmx_x86_ops
On Mon, Mar 23, 2020 at 01:27:28PM +0100, Vitaly Kuznetsov wrote:
> Sean Christopherson <sean.j.christopherson@intel.com> writes:
>
> > Configure VMX's runtime hooks by modifying vmx_x86_ops directly instead
> > of using the global kvm_x86_ops. This sets the stage for waiting until
> > after ->hardware_setup() to set kvm_x86_ops with the vendor's
> > implementation.
> >
> > Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
> > ---
> > arch/x86/kvm/vmx/nested.c | 15 ++++++++-------
> > arch/x86/kvm/vmx/nested.h | 3 ++-
> > arch/x86/kvm/vmx/vmx.c | 27 ++++++++++++++-------------
> > 3 files changed, 24 insertions(+), 21 deletions(-)
> >
> > diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
> > index 4ff859c99946..87fea22c3799 100644
> > --- a/arch/x86/kvm/vmx/nested.c
> > +++ b/arch/x86/kvm/vmx/nested.c
> > @@ -6241,7 +6241,8 @@ void nested_vmx_hardware_unsetup(void)
> > }
> > }
> >
> > -__init int nested_vmx_hardware_setup(int (*exit_handlers[])(struct kvm_vcpu *))
> > +__init int nested_vmx_hardware_setup(struct kvm_x86_ops *ops,
> > + int (*exit_handlers[])(struct kvm_vcpu *))
> > {
> > int i;
> >
> > @@ -6277,12 +6278,12 @@ __init int nested_vmx_hardware_setup(int (*exit_handlers[])(struct kvm_vcpu *))
> > exit_handlers[EXIT_REASON_INVVPID] = handle_invvpid;
> > exit_handlers[EXIT_REASON_VMFUNC] = handle_vmfunc;
> >
> > - kvm_x86_ops->check_nested_events = vmx_check_nested_events;
> > - kvm_x86_ops->get_nested_state = vmx_get_nested_state;
> > - kvm_x86_ops->set_nested_state = vmx_set_nested_state;
> > - kvm_x86_ops->get_vmcs12_pages = nested_get_vmcs12_pages;
> > - kvm_x86_ops->nested_enable_evmcs = nested_enable_evmcs;
> > - kvm_x86_ops->nested_get_evmcs_version = nested_get_evmcs_version;
> > + ops->check_nested_events = vmx_check_nested_events;
> > + ops->get_nested_state = vmx_get_nested_state;
> > + ops->set_nested_state = vmx_set_nested_state;
> > + ops->get_vmcs12_pages = nested_get_vmcs12_pages;
> > + ops->nested_enable_evmcs = nested_enable_evmcs;
> > + ops->nested_get_evmcs_version = nested_get_evmcs_version;
>
>
> A lazy guy like me would appreciate 'ops' -> 'vmx_x86_ops' rename as it
> would make 'git grep vmx_x86_ops' output more complete.

Ah, didn't think about that, obviously.

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