RE: [PATCH v3 05/11] KVM: SVM: Modify 64 bit intercept field to two 32 bit vectors

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> -----Original Message-----
> From: Jim Mattson <jmattson@xxxxxxxxxx>
> Sent: Wednesday, July 29, 2020 4:06 PM
> To: Moger, Babu <Babu.Moger@xxxxxxx>
> Cc: Paolo Bonzini <pbonzini@xxxxxxxxxx>; Vitaly Kuznetsov
> <vkuznets@xxxxxxxxxx>; Wanpeng Li <wanpengli@xxxxxxxxxxx>; Sean
> Christopherson <sean.j.christopherson@xxxxxxxxx>; kvm list
> <kvm@xxxxxxxxxxxxxxx>; Joerg Roedel <joro@xxxxxxxxxx>; the arch/x86
> maintainers <x86@xxxxxxxxxx>; LKML <linux-kernel@xxxxxxxxxxxxxxx>; Ingo
> Molnar <mingo@xxxxxxxxxx>; Borislav Petkov <bp@xxxxxxxxx>; H . Peter Anvin
> <hpa@xxxxxxxxx>; Thomas Gleixner <tglx@xxxxxxxxxxxxx>
> Subject: Re: [PATCH v3 05/11] KVM: SVM: Modify 64 bit intercept field to two 32
> bit vectors
> 
> On Tue, Jul 28, 2020 at 4:38 PM Babu Moger <babu.moger@xxxxxxx> wrote:
> >
> > Convert all the intercepts to one array of 32 bit vectors in
> > vmcb_control_area. This makes it easy for future intercept vector
> > additions.  Also update trace functions.
> >
> > Signed-off-by: Babu Moger <babu.moger@xxxxxxx>
> > ---
> 
> > @@ -128,8 +129,7 @@ enum {
> >
> >  struct __attribute__ ((__packed__)) vmcb_control_area {
> >         u32 intercepts[MAX_VECTORS];
> > -       u64 intercept;
> > -       u8 reserved_1[40];
> > +       u8 reserved_1[60 - (MAX_VECTORS * 4)];
> 
> Perhaps this could be simplified to 'u32 reserved_1[15 - MAX_VECTORS];'

Ok. Will change it. thanks

> 
> >         u16 pause_filter_thresh;
> >         u16 pause_filter_count;
> >         u64 iopm_base_pa;
> 
> Reviewed-by: Jim Mattson <jmattson@xxxxxxxxxx>



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