@@ -35,3 +35,45 @@ 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=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=images/disk.img,if=virtio,format=raw \
+ -net nic,model=virtio \
+ -net user
+
+Note that </path/to/QEMU_EFI.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 .
Add some documentation about running the pc defconfigs in qemu. In particular, document the use of the -bios parameter to use the OVMF firmware to test the UEFI image. Signed-off-by: Erico Nunes <nunes.erico@gmail.com> Cc: Peter Korsgaard <peter@korsgaard.com> --- board/pc/readme.txt | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+)