first commit

unikernel-demo/Makefile

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+export ukl-obj-m := fs1.o
+    
+all:
+	$(MAKE) -C ../whiterose/ UKL=$(PWD) bzImage
+qemu:
+	qemu-system-x86_64 -enable-kvm -m 1G -s -kernel ../whiterose/arch/x86/boot/bzImage -append "console=ttyS0 ukl quiet" -nographic

unikernel-demo/README.md

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+# unikernel-demo

unikernel-demo/fs1.c

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+#include <unistd.h>
+#include <fcntl.h>
+
+#ifndef USERSPACE
+# define main ukl_main
+#endif
+
+int main(void) {
+	char        buf[256] = { 0 };
+	int         fd = open("/etc/passwd", O_RDONLY);
+	ssize_t     ret;
+
+	if (fd == -1)
+		return 1;
+
+	while ((ret = read(fd, buf, sizeof(buf))))
+	{
+		buf[ret] = 0;
+		write(1, buf, ret);
+	}
+
+	close(fd);
+
+	return 0;
+}