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Message-ID: <CAFg_LQVLzXUhgOkzO780D1HmtLJ6topwPNQJTYXFbR9L7+X17Q@mail.gmail.com>
Date: Sun, 16 Apr 2023 08:25:40 +0800
From: Jinrong Liang <ljr.kernel@...il.com>
To: Bagas Sanjaya <bagasdotme@...il.com>
Cc: Sean Christopherson <seanjc@...gle.com>,
Like Xu <like.xu.linux@...il.com>,
Paolo Bonzini <pbonzini@...hat.com>,
Jonathan Corbet <corbet@....net>,
Shuah Khan <shuah@...nel.org>,
Aaron Lewis <aaronlewis@...gle.com>,
David Matlack <dmatlack@...gle.com>,
Vishal Annapurve <vannapurve@...gle.com>,
Wanpeng Li <wanpengli@...cent.com>,
Jinrong Liang <cloudliang@...cent.com>,
linux-kselftest@...r.kernel.org, linux-doc@...r.kernel.org,
kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/7] KVM: x86/pmu: Add documentation for fixed ctr on PMU filter
Bagas Sanjaya <bagasdotme@...il.com> 于2023年4月15日周六 11:24写道:
>
> On Fri, Apr 14, 2023 at 07:00:53PM +0800, Jinrong Liang wrote:
> > +Specifically, KVM follows the following pseudo-code when determining whether to
> > +allow the guest FixCtr[i] to count its pre-defined fixed event:
> > +
> > + FixCtr[i]_is_allowed = (action == ALLOW) && (bitmap & BIT(i)) ||
> > + (action == DENY) && !(bitmap & BIT(i));
> > + FixCtr[i]_is_denied = !FixCtr[i]_is_allowed;
> > +
>
> As kernel test robot has reported [1], you need to wrap the code above
> in a code block:
I will make the changes as you suggested, i.e. wrap the code above in
a code block.
Thanks.
>
> ---- >8 ----
> diff --git a/Documentation/virt/kvm/api.rst b/Documentation/virt/kvm/api.rst
> index 036f5b1a39aff8..b5836767e0e76d 100644
> --- a/Documentation/virt/kvm/api.rst
> +++ b/Documentation/virt/kvm/api.rst
> @@ -5126,7 +5126,7 @@ Via this API, KVM userspace can also control the behavior of the VM's fixed
> counters (if any) by configuring the "action" and "fixed_counter_bitmap" fields.
>
> Specifically, KVM follows the following pseudo-code when determining whether to
> -allow the guest FixCtr[i] to count its pre-defined fixed event:
> +allow the guest FixCtr[i] to count its pre-defined fixed event::
>
> FixCtr[i]_is_allowed = (action == ALLOW) && (bitmap & BIT(i)) ||
> (action == DENY) && !(bitmap & BIT(i));
>
> Thanks.
>
> [1]: https://lore.kernel.org/linux-doc/202304150850.rx4UDDsB-lkp@intel.com/
>
> --
> An old man doll... just what I always wanted! - Clara
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