build: add ext for run_qemu, copy net script to rootfs.

Signed-off-by: guibing <guibing@nucleisys.com>

Author: matthewgui

Makefile

@@ -285,6 +285,8 @@ linux: $(linux_wrkdir)/.config
 
 $(initramfs): $(buildroot_initramfs_sysroot) $(linux_image)
 	$(INITRAMFS_PRECMD)
+	# Copy files required for xec network startup
+	[ -f $(confdir)/S03net ] && cp -af $(confdir)/S03net $(buildroot_initramfs_sysroot)/etc/init.d/ || true
 	cd $(linux_wrkdir) && \
 		$(linux_gen_initramfs) \
 		-o $@ -u $(shell id -u) -g $(shell id -g) \
@@ -555,7 +557,7 @@ $(qemu_disk): $(boot_zip)
 
 run_qemu: $(qemu_disk) $(freeloader_elf)
 	@echo "Run on qemu for simulation"
-	$(qemu) $(QEMU_MACHINE_OPTS) -cpu nuclei-$(CORE),ext=$(ARCH_EXT) -bios $(freeloader_elf) -nographic -drive file=$(qemu_disk),if=sd,format=raw
+	$(qemu) $(QEMU_MACHINE_OPTS) -cpu nuclei-$(CORE),ext=$(ARCH_EXT)_svpbmt_zicbom_sstc -bios $(freeloader_elf) -nographic -drive file=$(qemu_disk),if=sd,format=raw
 
 .PHONY: backup snapshot genstamp genboot
 # backup your build