* [PATCH] KVM: Documentation: Update description of KVM_{GET,CLEAR}_DIRTY_LOG
@ 2020-12-08 4:34 Zenghui Yu
2021-01-21 14:52 ` Paolo Bonzini
0 siblings, 1 reply; 2+ messages in thread
From: Zenghui Yu @ 2020-12-08 4:34 UTC (permalink / raw)
To: pbonzini, kvm
Cc: corbet, wanghaibin.wang, linux-doc, linux-kernel, Zenghui Yu
Update various words, including the wrong parameter name and the vague
description of the usage of "slot" field.
Signed-off-by: Zenghui Yu <yuzenghui@huawei.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.
--
2.19.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] KVM: Documentation: Update description of KVM_{GET,CLEAR}_DIRTY_LOG
2020-12-08 4:34 [PATCH] KVM: Documentation: Update description of KVM_{GET,CLEAR}_DIRTY_LOG Zenghui Yu
@ 2021-01-21 14:52 ` Paolo Bonzini
0 siblings, 0 replies; 2+ messages in thread
From: Paolo Bonzini @ 2021-01-21 14:52 UTC (permalink / raw)
To: Zenghui Yu, kvm; +Cc: corbet, wanghaibin.wang, linux-doc, linux-kernel
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@huawei.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
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2020-12-08 4:34 [PATCH] KVM: Documentation: Update description of KVM_{GET,CLEAR}_DIRTY_LOG Zenghui Yu
2021-01-21 14:52 ` Paolo Bonzini
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