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qdev: Add a granule_mode property

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Introduce a new enum type property allowing to set an
IOMMU granule. Values are 4k, 8k, 16k, 64k and host.
This latter indicates the vIOMMU granule will match
the host page size.

A subsequent patch will add such a property to the
virtio-iommu device.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240227165730.14099-2-eric.auger@redhat.com>
This commit is contained in:
Eric Auger 2024-02-27 17:55:48 +01:00 • committed by Philippe Mathieu-Daudé
parent 0fad90955e
commit 965bc08310
3 changed files with 35 additions and 0 deletions
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14
hw/core/qdev-properties-system.c
View file

@ -679,6 +679,20 @@ const PropertyInfo qdev_prop_mig_mode = {
.set_default_value = qdev_propinfo_set_default_value_enum,
};
/* --- GranuleMode --- */
QEMU_BUILD_BUG_ON(sizeof(GranuleMode) != sizeof(int));
const PropertyInfo qdev_prop_granule_mode = {
.name = "GranuleMode",
.description = "granule_mode values, "
"4k, 8k, 16k, 64k, host",
.enum_table = &GranuleMode_lookup,
.get = qdev_propinfo_get_enum,
.set = qdev_propinfo_set_enum,
.set_default_value = qdev_propinfo_set_default_value_enum,
};
/* --- Reserved Region --- */
/*