qemu/9pfs : Add 9pfs support for elfloader-basic

Signed-off-by: Neagu Dragos-Ionut <dragosneagu28@gmail.com>

Author: NDragos

elfloader-basic/scripts/README.md

@@ -34,3 +34,15 @@ CC=/usr/bin/clang ./scripts/build/fc.x86_64
 ./scripts/run/qemu.x86_64
 ./scripts/run/fc.x86_64
 ```
+
+## Build and Run for <plat> / <arch> using a different file system  
+
+```console
+./scripts/run/<plat>.<arch>.<file_system>
+```
+
+e.g.
+
+```console
+./scripts/run/qemu.x86_64.9pfs
+```

elfloader-basic/scripts/build/qemu.x86_64.9pfs

@@ -0,0 +1,11 @@
+#!/bin/sh
+
+make distclean
+UK_DEFCONFIG=$(pwd)/scripts/defconfig/qemu.x86_64.9pfs make defconfig
+touch Makefile.uk
+make prepare
+if test -z "$CC"; then
+    make -j $(nproc)
+else
+    make CC="$CC" -j $(nproc)
+fi

elfloader-basic/scripts/defconfig/qemu.x86_64.9pfs

@@ -0,0 +1,28 @@
+CONFIG_PLAT_KVM=y
+CONFIG_KVM_VMM_QEMU=y
+CONFIG_ARCH_X86_64=y
+CONFIG_APPELFLOADER_DEPENDENCIES=y
+CONFIG_APPELFLOADER_ARCH_PRCTL=y
+CONFIG_APPELFLOADER_BRK=y
+CONFIG_APPELFLOADER_MULTIPROCESS=y
+CONFIG_APPELFLOADER_CUSTOMAPPNAME=y
+CONFIG_APPELFLOADER_STACK_NBPAGES=128
+CONFIG_APPELFLOADER_VFSEXEC_EXECBIT=n
+CONFIG_APPELFLOADER_VFSEXEC=y
+CONFIG_APPELFLOADER_HFS=y
+CONFIG_APPELFLOADER_HFS_ETCRESOLVCONF=y
+CONFIG_APPELFLOADER_HFS_ETCHOSTS=y
+CONFIG_APPELFLOADER_HFS_ETCHOSTNAME=y
+CONFIG_APPELFLOADER_HFS_REPLACEEXIST=y
+CONFIG_LIBPOSIX_PROCESS_MULTIPROCESS=y
+CONFIG_LIBVFSCORE=y
+CONFIG_LIBVFSCORE_AUTOMOUNT_UP=y
+CONFIG_LIBUK9P=y
+CONFIG_LIB9PFS=y
+CONFIG_LIBDEVFS=y
+CONFIG_LIBDEVFS_AUTOMOUNT=y
+# Uncomment for debugging.
+#CONFIG_LIBUKDEBUG_PRINTD=y
+#CONFIG_LIBUKDEBUG_PRINTK_INFO=y
+#CONFIG_LIBSYSCALL_SHIM_STRACE=y
+#CONFIG_LIBSYSCALL_SHIM_DEBUG=y

elfloader-basic/scripts/run/qemu.x86_64.9pfs

@@ -0,0 +1,25 @@
+#!/bin/sh
+
+if test ! -f "workdir/build/elfloader_qemu-x86_64"; then
+    echo "No kernel file workdir/build/elfloader_qemu-x86_64." 1>&2
+    echo "Did you run ./build.qemu.x86_64 ?" 1>&2
+    exit 1
+fi
+
+# Build ELFs.
+make -C rootfs/
+
+# Pack filesystem as 9pfs
+
+rm -fr 9pfs-rootfscd 
+cp -r rootfs 9pfs-rootfs
+
+sudo qemu-system-x86_64 \
+ -nographic \
+ -m 512 \
+ -cpu max \
+ -append "elfloader_qemu-x86_64 vfs.fstab=[ \"fs0:/:9pfs:::\" ] -- /hello-c" \
+ -kernel workdir/build/elfloader_qemu-x86_64 \
+ -fsdev local,id=myid,path=$(pwd)/9pfs-rootfs/,security_model=none \
+ -device virtio-9p-pci,fsdev=myid,mount_tag=fs0
+.

elfloader-basic/scripts/test/all.sh

@@ -29,3 +29,4 @@ test_build_run()
 test -d ./scripts/test/log || mkdir ./scripts/test/log
 test_build_run qemu.x86_64
 test_build_run fc.x86_64
+test_build_run qemu.x86_64.9pfs