1 files changed, 142 insertions, 0 deletions
diff --git a/sys/arch/armv7/stand/efiboot/exec.c b/sys/arch/armv7/stand/efiboot/exec.c
new file mode 100644
index 00000000000..189eb4e4b8c
--- /dev/null
+++ b/sys/arch/armv7/stand/efiboot/exec.c
@@ -0,0 +1,142 @@
+/*	$OpenBSD: exec.c,v 1.1 2016/05/14 17:55:15 kettenis Exp $	*/
+
+/*
+ * Copyright (c) 2006, 2016 Mark Kettenis
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/param.h>
+
+#include <lib/libsa/loadfile.h>
+
+#ifdef BOOT_ELF
+#include <sys/exec_elf.h>
+#endif
+
+#include <sys/reboot.h>
+#include <stand/boot/cmd.h>
+#include <machine/bootconfig.h>
+
+#include <efi.h>
+
+extern EFI_BOOT_SERVICES *BS;
+
+typedef void (*startfuncp)(void *, void *, void *) __attribute__ ((noreturn));
+
+struct uboot_tag_header {
+	uint32_t	size;
+	uint32_t	tag;
+};
+struct uboot_tag_core {
+	uint32_t	flags;
+	uint32_t	pagesize;
+	uint32_t	rootdev;
+};
+struct uboot_tag_serialnr {
+	uint32_t	low;
+	uint32_t	high;
+};
+struct uboot_tag_revision {
+	uint32_t	rev;
+};
+struct uboot_tag_mem32 {
+	uint32_t	size;
+	uint32_t	start;
+};
+struct uboot_tag_cmdline {
+	char		cmdline[1];
+};
+
+#define ATAG_CORE	0x54410001
+#define	ATAG_MEM	0x54410002
+#define	ATAG_CMDLINE	0x54410009
+#define	ATAG_SERIAL	0x54410006
+#define	ATAG_REVISION	0x54410007
+#define	ATAG_NONE	0x00000000
+struct uboot_tag {
+	struct uboot_tag_header hdr;
+	union {
+		struct uboot_tag_core		core;
+		struct uboot_tag_mem32		mem;
+		struct uboot_tag_revision	rev;
+		struct uboot_tag_serialnr	serialnr;
+		struct uboot_tag_cmdline	cmdline;
+	} u;
+};
+
+struct uboot_tag tags[2];
+
+void
+run_loadfile(u_long *marks, int howto)
+{
+#if 0
+#ifdef BOOT_ELF
+	Elf_Ehdr *elf = (Elf_Ehdr *)marks[MARK_SYM];
+	Elf_Shdr *shp = (Elf_Shdr *)(marks[MARK_SYM] + elf->e_shoff);
+	u_long esym = marks[MARK_END];
+	char *cp;
+	int i;
+
+	/*
+	 * Tell locore.S where the symbol table ends by setting
+	 * 'esym', which should be the first word in the .data
+	 * section.
+	 */
+	for (i = 0; i < elf->e_shnum; i++) {
+		/* XXX Assume .data is the first writable segment. */
+		if (shp[i].sh_flags & SHF_WRITE) {
+			/* XXX We have to store the virtual address. */
+			esym |= shp[i].sh_addr & 0xff000000;
+			*(u_long *)(shp[i].sh_addr & 0x00ffffff) = esym;
+			break;
+		}
+	}
+#endif
+	cp = (char *)0x00200000 - MAX_BOOT_STRING - 1;
+
+#define      BOOT_STRING_MAGIC 0x4f425344
+
+	*(int *)cp = BOOT_STRING_MAGIC;
+
+	cp += sizeof(int);
+	snprintf(cp, MAX_BOOT_STRING, "%s:%s -", cmd.bootdev, cmd.image);
+
+	while (*cp != '\0')
+		cp++;
+	if (howto & RB_ASKNAME)
+		*cp++ = 'a';
+	if (howto & RB_CONFIG)
+		*cp++ = 'c';
+	if (howto & RB_KDB)
+		*cp++ = 'd';
+	if (howto & RB_SINGLE)
+		*cp++ = 's';
+
+	*cp = '\0';
+
+#endif
+
+	tags[0].hdr.tag = ATAG_MEM;
+	tags[0].hdr.size = sizeof(struct uboot_tag);
+	tags[0].u.mem.start = 0x10000000;
+	tags[0].u.mem.size = 0x80000000;
+
+	memcpy((void *)0x10000000, tags, sizeof(tags));
+
+	BS->ExitBootServices(NULL, 0);
+
+	(*(startfuncp)(marks[MARK_ENTRY]))(NULL, (void *)4821, (void *)0x10000000);
+
+	/* NOTREACHED */
+}