Enhance the description of QEMU block devices
* Describe how to attach a virtio-blk device.
* Sort the command lines for MMC to match the other devices.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
* Add a new page about the emulation of block devices
* Add semihosting to the emulation index page
* Set toc maxdepth to 1 to improve readability
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>