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hw/vmapple/virtio-blk: Add support for apple virtio-blk

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Apple has its own virtio-blk PCI device ID where it deviates from the
official virtio-pci spec slightly: It puts a new "apple type"
field at a static offset in config space and introduces a new barrier
command.

This patch first creates a mechanism for virtio-blk downstream classes to
handle unknown commands. It then creates such a downstream class and a new
vmapple-virtio-blk-pci class which support the additional apple type config
identifier as well as the barrier command.

The 'aux' or 'root' device type are selected using the 'variant' property.

Signed-off-by: Alexander Graf <graf@amazon.com>
Signed-off-by: Phil Dennis-Jordan <phil@philjordan.eu>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Tested-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-ID: <20241223221645.29911-13-phil@philjordan.eu>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
This commit is contained in:
Alexander Graf 2023-06-14 22:56:22 +00:00 • committed by Philippe Mathieu-Daudé
parent 33b5446206
commit ee241d79bb
10 changed files with 264 additions and 4 deletions
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6
include/hw/qdev-properties-system.h
View file

@ -31,6 +31,7 @@ extern const PropertyInfo qdev_prop_pcie_link_width;
extern const PropertyInfo qdev_prop_cpus390entitlement;
extern const PropertyInfo qdev_prop_iothread_vq_mapping_list;
extern const PropertyInfo qdev_prop_endian_mode;
extern const PropertyInfo qdev_prop_vmapple_virtio_blk_variant;
#define DEFINE_PROP_PCI_DEVFN(_n, _s, _f, _d) \
DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_pci_devfn, int32_t)
@ -104,4 +105,9 @@ extern const PropertyInfo qdev_prop_endian_mode;
#define DEFINE_PROP_ENDIAN_NODEFAULT(_name, _state, _field) \
DEFINE_PROP_ENDIAN(_name, _state, _field, ENDIAN_MODE_UNSPECIFIED)
#define DEFINE_PROP_VMAPPLE_VIRTIO_BLK_VARIANT(_name, _state, _fld, _default) \
DEFINE_PROP_UNSIGNED(_name, _state, _fld, _default, \
qdev_prop_vmapple_virtio_blk_variant, \
VMAppleVirtioBlkVariant)
#endif