[v8] VIRTIO-IOMMU: Introduce aw-bits and granule options

[PATCH v8 9/9] qemu-options.hx: Document the virtio-iommu-pci aw-bits option

Eric Auger posted 9 patches 1 year, 11 months ago

Diff against v6 v7
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Maintainers: Peter Maydell <peter.maydell@linaro.org>, Eduardo Habkost <eduardo@habkost.net>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, "Philippe Mathieu-Daudé" <philmd@linaro.org>, Yanan Wang <wangyanan55@huawei.com>, Paolo Bonzini <pbonzini@redhat.com>, "Daniel P. Berrangé" <berrange@redhat.com>, Richard Henderson <richard.henderson@linaro.org>, "Michael S. Tsirkin" <mst@redhat.com>, Eric Auger <eric.auger@redhat.com>, Eric Blake <eblake@redhat.com>, Markus Armbruster <armbru@redhat.com>, Thomas Huth <thuth@redhat.com>, Laurent Vivier <lvivier@redhat.com>

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[PATCH v8 9/9] qemu-options.hx: Document the virtio-iommu-pci aw-bits option

Posted by Eric Auger 1 year, 11 months ago

Document the new aw-bits option.

Signed-off-by: Eric Auger <eric.auger@redhat.com>

---
v7 -> v8:
- remove "it defaults"
- removed Cedric's R-b

v4 -> v5
- tweek the aw-bits option description according to Cédric's
  suggestion
---
 qemu-options.hx | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/qemu-options.hx b/qemu-options.hx
index 379792a215..9d49ce9460 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -1180,6 +1180,9 @@ SRST
         This decides the default granule to be be exposed by the
         virtio-iommu. If host, the granule matches the host page size.
 
+    ``aw-bits=val`` (val between 32 and 64, default depends on machine)
+        This decides the address width of the IOVA address space.
+
 ERST
 
 DEF("name", HAS_ARG, QEMU_OPTION_name,
-- 
2.41.0

Re: [PATCH v8 9/9] qemu-options.hx: Document the virtio-iommu-pci aw-bits option

Posted by Philippe Mathieu-Daudé 1 year, 11 months ago

On 7/3/24 14:43, Eric Auger wrote:
> Document the new aw-bits option.
> 
> Signed-off-by: Eric Auger <eric.auger@redhat.com>
> 
> ---
> v7 -> v8:
> - remove "it defaults"
> - removed Cedric's R-b
> 
> v4 -> v5
> - tweek the aw-bits option description according to Cédric's
>    suggestion
> ---
>   qemu-options.hx | 3 +++
>   1 file changed, 3 insertions(+)

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>