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Commitd162219

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Tomas Winklergregkh
Tomas Winkler
authored andcommitted
mei: virtio: virtualization frontend driver
This frontend driver implements MEI hw interface based on virtioframework to let MEI driver work without changes under virtualization.It requires a backend service in the ACRN device-model on the serviceOS side to make it work. The backend service will emulate mei routingand assign vtags for each mei vritio device.The backend service is available in ACRN device-model at github.For more information, please refer tohttps://projectacrn.orgThe ACRN virtio sub device id for MEI is is 0x8602.Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>Signed-off-by: Wang Yu <yu1.wang@intel.com>Signed-off-by: Liu Shuo <shuo.a.liu@intel.com>Link:https://lore.kernel.org/r/20200818115147.2567012-14-tomas.winkler@intel.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
1 parent2257b74 commitd162219

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‎drivers/misc/mei/Kconfig‎

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@@ -46,4 +46,14 @@ config INTEL_MEI_TXE
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Supported SoCs:
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Intel Bay Trail
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config INTEL_MEI_VIRTIO
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tristate "Intel MEI interface emulation with virtio framework"
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select INTEL_MEI
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depends on X86 && PCI && VIRTIO_PCI
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help
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This module implements mei hw emulation over virtio transport.
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The module will be called mei_virtio.
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Enable this if your virtual machine supports virtual mei
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device over virtio.
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source "drivers/misc/mei/hdcp/Kconfig"

‎drivers/misc/mei/Makefile‎

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@@ -22,6 +22,9 @@ obj-$(CONFIG_INTEL_MEI_TXE) += mei-txe.o
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mei-txe-objs := pci-txe.o
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mei-txe-objs += hw-txe.o
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obj-$(CONFIG_INTEL_MEI_VIRTIO) += mei-virtio.o
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mei-virtio-objs := hw-virtio.o
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mei-$(CONFIG_EVENT_TRACING) += mei-trace.o
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CFLAGS_mei-trace.o = -I$(src)
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