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drivers: virtio: add VIRTIO MMIO transport driver #89460

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Merged
merged 5 commits into from
Jun 7, 2025
Merged

drivers: virtio: add VIRTIO MMIO transport driver #89460

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ef7357d
drivers: entropy: virtio: Unify the notation to `VIRTIO`
soburi Jun 5, 2025
e752972
drivers: virtio: add VIRTIO MMIO transport driver
soburi May 3, 2025
3b05176
boards: qemu: cortex_a53: add virtio-mmio configuration
soburi May 4, 2025
0c6ad17
tests: drivers: build_all: virtio: add VIRTIO MMIO build test
soburi May 5, 2025
ae38ed6
tests: drivers: entropy: api: add qemu_cortex_a53 configuration
soburi May 4, 2025
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6 changes: 6 additions & 0 deletions boards/qemu/cortex_a53/board.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -12,8 +12,14 @@ else()
set(QEMU_MACH virt,secure=on,gic-version=3)
endif()

if(CONFIG_ENTROPY_VIRTIO)
set(QEMU_VIRTIO_ENTROPY_FLAGS -device virtio-rng-device,bus=virtio-mmio-bus.0)
endif()

set(QEMU_FLAGS_${ARCH}
-global virtio-mmio.force-legacy=false
-cpu ${QEMU_CPU_TYPE_${ARCH}}
${QEMU_VIRTIO_ENTROPY_FLAGS}
-nographic
-machine ${QEMU_MACH}
)
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223 changes: 223 additions & 0 deletions boards/qemu/cortex_a53/qemu_cortex_a53.dts
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Expand Up @@ -31,6 +31,229 @@
reg = <0x0 0x40000000 0x0 DT_SIZE_M(128)>;
};

virtio_mmio0: virtio_mmio@a000000 {
compatible = "virtio,mmio";
reg = <0x0 0xa000000 0x0 0x200>;
interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL IRQ_DEFAULT_PRIORITY>;
status = "disabled";
};

virtio_mmio1: virtio_mmio@a000200 {
compatible = "virtio,mmio";
reg = <0x0 0xa000200 0x0 0x200>;
interrupts = <GIC_SPI 17 IRQ_TYPE_LEVEL IRQ_DEFAULT_PRIORITY>;
status = "disabled";
};

virtio_mmio2: virtio_mmio@a000400 {
compatible = "virtio,mmio";
reg = <0x0 0xa000400 0x0 0x200>;
interrupts = <GIC_SPI 18 IRQ_TYPE_LEVEL IRQ_DEFAULT_PRIORITY>;
status = "disabled";
};

virtio_mmio3: virtio_mmio@a000600 {
compatible = "virtio,mmio";
reg = <0x0 0xa000600 0x0 0x200>;
interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL IRQ_DEFAULT_PRIORITY>;
status = "disabled";
};

virtio_mmio4: virtio_mmio@a000800 {
compatible = "virtio,mmio";
reg = <0x0 0xa000800 0x0 0x200>;
interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL IRQ_DEFAULT_PRIORITY>;
status = "disabled";
};

virtio_mmio5: virtio_mmio@a000a00 {
compatible = "virtio,mmio";
reg = <0x0 0xa000a00 0x0 0x200>;
interrupts = <GIC_SPI 21 IRQ_TYPE_LEVEL IRQ_DEFAULT_PRIORITY>;
status = "disabled";
};

virtio_mmio6: virtio_mmio@a000c00 {
compatible = "virtio,mmio";
reg = <0x0 0xa000c00 0x0 0x200>;
interrupts = <GIC_SPI 22 IRQ_TYPE_LEVEL IRQ_DEFAULT_PRIORITY>;
status = "disabled";
};

virtio_mmio7: virtio_mmio@a000e00 {
compatible = "virtio,mmio";
reg = <0x0 0xa000e00 0x0 0x200>;
interrupts = <GIC_SPI 23 IRQ_TYPE_LEVEL IRQ_DEFAULT_PRIORITY>;
status = "disabled";
};

virtio_mmio8: virtio_mmio@a001000 {
compatible = "virtio,mmio";
interrupts = <GIC_SPI 24 IRQ_TYPE_LEVEL IRQ_DEFAULT_PRIORITY>;
reg = <0x0 0xa001000 0x0 0x200>;
status = "disabled";
};

virtio_mmio9: virtio_mmio@a001200 {
compatible = "virtio,mmio";
reg = <0x0 0xa001200 0x0 0x200>;
interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL IRQ_DEFAULT_PRIORITY>;
status = "disabled";
};

virtio_mmio10: virtio_mmio@a001400 {
compatible = "virtio,mmio";
reg = <0x0 0xa001400 0x0 0x200>;
interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL IRQ_DEFAULT_PRIORITY>;
status = "disabled";
};

virtio_mmio11: virtio_mmio@a001600 {
compatible = "virtio,mmio";
reg = <0x0 0xa001600 0x0 0x200>;
interrupts = <GIC_SPI 27 IRQ_TYPE_LEVEL IRQ_DEFAULT_PRIORITY>;
status = "disabled";
};

virtio_mmio12: virtio_mmio@a001800 {
compatible = "virtio,mmio";
reg = <0x0 0xa001800 0x0 0x200>;
interrupts = <GIC_SPI 28 IRQ_TYPE_LEVEL IRQ_DEFAULT_PRIORITY>;
status = "disabled";
};

virtio_mmio13: virtio_mmio@a001a00 {
compatible = "virtio,mmio";
reg = <0x0 0xa001a00 0x0 0x200>;
interrupts = <GIC_SPI 29 IRQ_TYPE_LEVEL IRQ_DEFAULT_PRIORITY>;
status = "disabled";
};

virtio_mmio14: virtio_mmio@a001c00 {
compatible = "virtio,mmio";
reg = <0x0 0xa001c00 0x0 0x200>;
interrupts = <GIC_SPI 30 IRQ_TYPE_LEVEL IRQ_DEFAULT_PRIORITY>;
status = "disabled";
};

virtio_mmio15: virtio_mmio@a001e00 {
compatible = "virtio,mmio";
reg = <0x0 0xa001e00 0x0 0x200>;
interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL IRQ_DEFAULT_PRIORITY>;
status = "disabled";
};

virtio_mmio16: virtio_mmio@a002000 {
compatible = "virtio,mmio";
reg = <0x0 0xa002000 0x0 0x200>;
interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL IRQ_DEFAULT_PRIORITY>;
status = "disabled";
};

virtio_mmio17: virtio_mmio@a002200 {
compatible = "virtio,mmio";
reg = <0x0 0xa002200 0x0 0x200>;
interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL IRQ_DEFAULT_PRIORITY>;
status = "disabled";
};

virtio_mmio18: virtio_mmio@a002400 {
compatible = "virtio,mmio";
reg = <0x0 0xa002400 0x0 0x200>;
interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL IRQ_DEFAULT_PRIORITY>;
status = "disabled";
};

virtio_mmio19: virtio_mmio@a002600 {
compatible = "virtio,mmio";
reg = <0x0 0xa002600 0x0 0x200>;
interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL IRQ_DEFAULT_PRIORITY>;
status = "disabled";
};

virtio_mmio20: virtio_mmio@a002800 {
compatible = "virtio,mmio";
reg = <0x0 0xa002800 0x0 0x200>;
interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL IRQ_DEFAULT_PRIORITY>;
status = "disabled";
};

virtio_mmio21: virtio_mmio@a002a00 {
compatible = "virtio,mmio";
reg = <0x0 0xa002a00 0x0 0x200>;
interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL IRQ_DEFAULT_PRIORITY>;
status = "disabled";
};

virtio_mmio22: virtio_mmio@a002c00 {
compatible = "virtio,mmio";
reg = <0x0 0xa002c00 0x0 0x200>;
interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL IRQ_DEFAULT_PRIORITY>;
status = "disabled";
};

virtio_mmio23: virtio_mmio@a002e00 {
compatible = "virtio,mmio";
reg = <0x0 0xa002e00 0x0 0x200>;
interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL IRQ_DEFAULT_PRIORITY>;
status = "disabled";
};

virtio_mmio24: virtio_mmio@a003000 {
compatible = "virtio,mmio";
reg = <0x0 0xa003000 0x0 0x200>;
interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL IRQ_DEFAULT_PRIORITY>;
status = "disabled";
};

virtio_mmio25: virtio_mmio@a003200 {
compatible = "virtio,mmio";
reg = <0x0 0xa003200 0x0 0x200>;
interrupts = <GIC_SPI 41 IRQ_TYPE_LEVEL IRQ_DEFAULT_PRIORITY>;
status = "disabled";
};

virtio_mmio26: virtio_mmio@a003400 {
compatible = "virtio,mmio";
reg = <0x0 0xa003400 0x0 0x200>;
interrupts = <GIC_SPI 42 IRQ_TYPE_LEVEL IRQ_DEFAULT_PRIORITY>;
status = "disabled";
};

virtio_mmio27: virtio_mmio@a003600 {
compatible = "virtio,mmio";
reg = <0x0 0xa003600 0x0 0x200>;
interrupts = <GIC_SPI 43 IRQ_TYPE_LEVEL IRQ_DEFAULT_PRIORITY>;
status = "disabled";
};

virtio_mmio28: virtio_mmio@a003800 {
compatible = "virtio,mmio";
reg = <0x0 0xa003800 0x0 0x200>;
interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL IRQ_DEFAULT_PRIORITY>;
status = "disabled";
};

virtio_mmio29: virtio_mmio@a003a00 {
compatible = "virtio,mmio";
reg = <0x0 0xa003a00 0x0 0x200>;
interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL IRQ_DEFAULT_PRIORITY>;
status = "disabled";
};

virtio_mmio30: virtio_mmio@a003c00 {
compatible = "virtio,mmio";
reg = <0x0 0xa003c00 0x0 0x200>;
interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL IRQ_DEFAULT_PRIORITY>;
status = "disabled";
};

virtio_mmio31: virtio_mmio@a003e00 {
compatible = "virtio,mmio";
reg = <0x0 0xa003e00 0x0 0x200>;
interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL IRQ_DEFAULT_PRIORITY>;
status = "disabled";
};
};
};

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4 changes: 2 additions & 2 deletions drivers/entropy/Kconfig.virtio
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Expand Up @@ -2,10 +2,10 @@
# SPDX-License-Identifier: Apache-2.0

config ENTROPY_VIRTIO
bool "Driver for VirtIO Entropy device"
bool "Driver for VIRTIO Entropy device"
depends on DT_HAS_VIRTIO_DEVICE4_ENABLED
depends on VIRTIO
select ENTROPY_HAS_DRIVER
default y
help
Enable driver for the VirtIO Entropy device.
Enable driver for the VIRTIO Entropy device.
2 changes: 1 addition & 1 deletion drivers/entropy/entropy_virtio.c
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Expand Up @@ -98,7 +98,7 @@ static int entropy_virtio_init(const struct device *dev)

k_sem_init(&data->sem, 0, 1);

LOG_DBG("VirtIO entropy driver initialized");
LOG_DBG("virtio entropy driver initialized");
return 0;
}

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1 change: 1 addition & 0 deletions drivers/virtio/CMakeLists.txt
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Expand Up @@ -5,3 +5,4 @@ zephyr_library()

zephyr_library_sources_ifdef(CONFIG_VIRTIO virtqueue.c virtio_common.c)
zephyr_library_sources_ifdef(CONFIG_VIRTIO_PCI virtio_pci.c)
zephyr_library_sources_ifdef(CONFIG_VIRTIO_MMIO virtio_mmio.c)
7 changes: 7 additions & 0 deletions drivers/virtio/Kconfig
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Expand Up @@ -15,6 +15,13 @@ config VIRTIO_PCI
help
Enable options for VIRTIO over PCI

config VIRTIO_MMIO
bool "support for VIRTIO over MMIO"
default y
depends on DT_HAS_VIRTIO_MMIO_ENABLED
help
Enable options for VIRTIO over MMIO

endif # VIRTIO

module = VIRTIO
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