scripts/qemustart: Allow specifying custom kernel for x86

Currently it's not possible to test boot squashfs root images, so this
patch now allows this use case as well.

Cc: Yousong Zhou <yszhou4tech@gmail.com>
Signed-off-by: Petr Štetiar <ynezz@true.cz>

diff --git a/scripts/qemustart b/scripts/qemustart
index 3b479860e9c5e9ecbf9a30ee25f5198055191fca..2012d43a85287160c5a2adaaee89b613de18fd97 100755 (executable)
--- a/scripts/qemustart
+++ b/scripts/qemustart
@@ -233,9 +233,10 @@ start_qemu_malta() {
 }
 
 start_qemu_x86() {
+       local qemu_exe
+       local kernel="$o_kernel"
        local rootfs="$o_rootfs"
        local mach="${o_mach:-pc}"
-       local qemu_exe
 
        [ -n "$rootfs" ] || {
                rootfs="$o_bindir/openwrt-$o_target-${o_subtarget%-*}-combined-ext4.img"
@@ -257,6 +258,13 @@ start_qemu_x86() {
                        ;;
        esac
 
+       [ -n "$kernel" ] && {
+           o_qemu_extra+=( \
+               "-kernel" "$kernel" \
+               "-append" "root=/dev/vda console=ttyS0 rootwait" \
+           )
+       }
+
        [ -n $o_nonetwork ] || {
                o_qemu_extra+=( \
                        "-netdev" "bridge,id=lan,br=$BR_LAN,helper=$HELPER" \