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Diffstat (limited to 'doc/board/emulation/qemu-arm.rst')
| -rw-r--r-- | doc/board/emulation/qemu-arm.rst | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/doc/board/emulation/qemu-arm.rst b/doc/board/emulation/qemu-arm.rst index 584ef0a7e15..16f66388eb1 100644 --- a/doc/board/emulation/qemu-arm.rst +++ b/doc/board/emulation/qemu-arm.rst @@ -21,6 +21,9 @@ The 'virt' platform provides the following as the basic functionality: Additionally, a number of optional peripherals can be added to the PCI bus. +See :doc:`../../develop/devicetree/dt_qemu` for information on how to see +the devicetree actually generated by QEMU. + Building U-Boot --------------- Set the CROSS_COMPILE environment variable as usual, and run: @@ -41,14 +44,15 @@ The minimal QEMU command line to get U-Boot up and running is: - For ARM:: - qemu-system-arm -machine virt -bios u-boot.bin + qemu-system-arm -machine virt -nographic -bios u-boot.bin - For AArch64:: - qemu-system-aarch64 -machine virt -cpu cortex-a57 -bios u-boot.bin + qemu-system-aarch64 -machine virt -nographic -cpu cortex-a57 -bios u-boot.bin Note that for some odd reason qemu-system-aarch64 needs to be explicitly -told to use a 64-bit CPU or it will boot in 32-bit mode. +told to use a 64-bit CPU or it will boot in 32-bit mode. The -nographic argument +ensures that output appears on the terminal. Use Ctrl-A X to quit. Additional persistent U-boot environment support can be added as follows: @@ -65,7 +69,8 @@ can be enabled with the following command line parameters: - To add a Serial ATA disk via an Intel ICH9 AHCI controller, pass e.g.:: - -drive if=none,file=disk.img,id=mydisk -device ich9-ahci,id=ahci -device ide-drive,drive=mydisk,bus=ahci.0 + -drive if=none,file=disk.img,format=raw,id=mydisk \ + -device ich9-ahci,id=ahci -device ide-drive,drive=mydisk,bus=ahci.0 - To add an Intel E1000 network adapter, pass e.g.:: @@ -75,10 +80,14 @@ can be enabled with the following command line parameters: -device usb-ehci,id=ehci -- To add a NVMe disk, pass e.g.:: +- To add an NVMe disk, pass e.g.:: -drive if=none,file=disk.img,id=mydisk -device nvme,drive=mydisk,serial=foo +- To add a random number generator, pass e.g.:: + + -device virtio-rng-pci + These have been tested in QEMU 2.9.0 but should work in at least 2.5.0 as well. Enabling TPMv2 support |