lkml.org 
[lkml]   [2017]   [Feb]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] KVM: VMX: use vmcs_set/clear_bits for CPU-based execution controls


----- Original Message -----
> From: "Bandan Das" <bsd@redhat.com>
> To: "Paolo Bonzini" <pbonzini@redhat.com>
> Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org
> Sent: Friday, February 17, 2017 1:04:14 AM
> Subject: Re: [PATCH] KVM: VMX: use vmcs_set/clear_bits for CPU-based execution controls
>
> Paolo Bonzini <pbonzini@redhat.com> writes:
>
> > Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> > ---
>
> I took a quick look and found these two potential
> consumers of these set/clear wrappers.
>
> vmcs_set_secondary_exec_control()
> vmx_set_virtual_x2apic_mode()
>
> Since this has been reviewed already,
> we can just have them later in a follow up
> (unless you left them out intentionally).

Both of these can both set and clear bits, so they could be the
consumer of a new function

void vmcs_write_bits(u16 field, u32 value, u32 mask)

but I don't see much benefit in introducing it; the cognitive
load is higher than vmcs_{set,clear}_bits.

Paolo

\
 
 \ /
  Last update: 2017-02-17 09:43    [W:0.575 / U:0.528 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site