linux-kernel - Re: [PATCH] KVM: Documentation: Update description of KVM_{GET,CLEAR}_DIRTY

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Date:   Thu, 21 Jan 2021 15:52:40 +0100
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     Zenghui Yu <yuzenghui@...wei.com>, kvm@...r.kernel.org
Cc:     corbet@....net, wanghaibin.wang@...wei.com,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] KVM: Documentation: Update description of
 KVM_{GET,CLEAR}_DIRTY_LOG

On 08/12/20 05:34, Zenghui Yu wrote:
> Update various words, including the wrong parameter name and the vague
> description of the usage of "slot" field.
> 
> Signed-off-by: Zenghui Yu <yuzenghui@...wei.com>
> ---
>   Documentation/virt/kvm/api.rst | 16 +++++++---------
>   1 file changed, 7 insertions(+), 9 deletions(-)
> 
> diff --git a/Documentation/virt/kvm/api.rst b/Documentation/virt/kvm/api.rst
> index 70254eaa5229..0eb236737f80 100644
> --- a/Documentation/virt/kvm/api.rst
> +++ b/Documentation/virt/kvm/api.rst
> @@ -360,10 +360,9 @@ since the last call to this ioctl.  Bit 0 is the first page in the
>   memory slot.  Ensure the entire structure is cleared to avoid padding
>   issues.
>   
> -If KVM_CAP_MULTI_ADDRESS_SPACE is available, bits 16-31 specifies
> -the address space for which you want to return the dirty bitmap.
> -They must be less than the value that KVM_CHECK_EXTENSION returns for
> -the KVM_CAP_MULTI_ADDRESS_SPACE capability.
> +If KVM_CAP_MULTI_ADDRESS_SPACE is available, bits 16-31 of slot field specifies
> +the address space for which you want to return the dirty bitmap.  See
> +KVM_SET_USER_MEMORY_REGION for details on the usage of slot field.
>   
>   The bits in the dirty bitmap are cleared before the ioctl returns, unless
>   KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2 is enabled.  For more information,
> @@ -4427,7 +4426,7 @@ to I/O ports.
>   :Capability: KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2
>   :Architectures: x86, arm, arm64, mips
>   :Type: vm ioctl
> -:Parameters: struct kvm_dirty_log (in)
> +:Parameters: struct kvm_clear_dirty_log (in)
>   :Returns: 0 on success, -1 on error
>   
>   ::
> @@ -4454,10 +4453,9 @@ in KVM's dirty bitmap, and dirty tracking is re-enabled for that page
>   (for example via write-protection, or by clearing the dirty bit in
>   a page table entry).
>   
> -If KVM_CAP_MULTI_ADDRESS_SPACE is available, bits 16-31 specifies
> -the address space for which you want to return the dirty bitmap.
> -They must be less than the value that KVM_CHECK_EXTENSION returns for
> -the KVM_CAP_MULTI_ADDRESS_SPACE capability.
> +If KVM_CAP_MULTI_ADDRESS_SPACE is available, bits 16-31 of slot field specifies
> +the address space for which you want to clear the dirty status.  See
> +KVM_SET_USER_MEMORY_REGION for details on the usage of slot field.
>   
>   This ioctl is mostly useful when KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2
>   is enabled; for more information, see the description of the capability.
> 

Queued, thanks.

Paolo