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-rw-r--r--board/pc/readme.txt41
1 files changed, 41 insertions, 0 deletions
diff --git a/board/pc/readme.txt b/board/pc/readme.txt
index 68ca21166f..ca3b5123c1 100644
--- a/board/pc/readme.txt
+++ b/board/pc/readme.txt
@@ -35,3 +35,44 @@ Bare PC sample config
the setup as well.
3. Enjoy
+
+Emulation in qemu (BIOS)
+========================
+
+1. Edit grub-bios.cfg
+
+ Since the driver will show up in the virtual machine as /dev/vda,
+ change board/pc/grub-bios.cfg to use root=/dev/vda2 instead of
+ root=/dev/sda2. Then rebuild grub2 and the image.
+
+2. Run the emulation with:
+
+qemu-system-x86_64 \
+ -M pc \
+ -drive file=output/images/disk.img,if=virtio,format=raw \
+ -net nic,model=virtio \
+ -net user
+
+
+Emulation in qemu (UEFI)
+========================
+
+1. Edit grub-efi.cfg
+
+ Since the driver will show up in the virtual machine as /dev/vda,
+ change board/pc/grub-efi.cfg to use root=/dev/vda2 instead of
+ root=/dev/sda2. Then rebuild grub2 and the image.
+
+2. Run the emulation with:
+
+qemu-system-x86_64 \
+ -M pc \
+ -bios </path/to/OVMF_CODE.fd> \
+ -drive file=output/images/disk.img,if=virtio,format=raw \
+ -net nic,model=virtio \
+ -net user
+
+Note that </path/to/OVMF.fd> needs to point to a valid x86_64 UEFI
+firmware image for qemu. It may be provided by your distribution as a
+edk2 or OVMF package, in path such as
+/usr/share/edk2/ovmf/OVMF_CODE.fd .