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[src/trunk]: src/sys/stand/efiboot Add "dtb" command for loading a custom .dt...
details: https://anonhg.NetBSD.org/src/rev/831939d40c04
branches: trunk
changeset: 433353:831939d40c04
user: jmcneill <jmcneill%NetBSD.org@localhost>
date: Sun Sep 09 13:37:54 2018 +0000
description:
Add "dtb" command for loading a custom .dtb file.
diffstat:
sys/stand/efiboot/boot.c | 26 +++++++++++++++++++++++-
sys/stand/efiboot/efiboot.h | 4 ++-
sys/stand/efiboot/efifdt.c | 12 ++++++++++-
sys/stand/efiboot/efifdt.h | 3 +-
sys/stand/efiboot/exec.c | 47 ++++++++++++++++++++++++++------------------
5 files changed, 69 insertions(+), 23 deletions(-)
diffs (247 lines):
diff -r 3a29446f2d2c -r 831939d40c04 sys/stand/efiboot/boot.c
--- a/sys/stand/efiboot/boot.c Sun Sep 09 13:32:26 2018 +0000
+++ b/sys/stand/efiboot/boot.c Sun Sep 09 13:37:54 2018 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: boot.c,v 1.6 2018/09/07 17:30:58 jmcneill Exp $ */
+/* $NetBSD: boot.c,v 1.7 2018/09/09 13:37:54 jmcneill Exp $ */
/*-
* Copyright (c) 2016 Kimihiro Nonaka <nonaka%netbsd.org@localhost>
@@ -54,9 +54,11 @@
static char default_device[32];
static char initrd_path[255];
+static char dtb_path[255];
void command_boot(char *);
void command_dev(char *);
+void command_dtb(char *);
void command_initrd(char *);
void command_ls(char *);
void command_reset(char *);
@@ -66,6 +68,7 @@
const struct boot_command commands[] = {
{ "boot", command_boot, "boot [dev:][filename] [args]\n (ex. \"hd0a:\\netbsd.old -s\"" },
{ "dev", command_dev, "dev" },
+ { "dtb", command_dtb, "dtb [dev:][filename]" },
{ "initrd", command_initrd, "initrd [dev:][filename]" },
{ "ls", command_ls, "ls [hdNn:/path]" },
{ "version", command_version, "version" },
@@ -114,6 +117,12 @@
}
void
+command_dtb(char *arg)
+{
+ set_dtb_path(arg);
+}
+
+void
command_initrd(char *arg)
{
set_initrd_path(arg);
@@ -181,6 +190,21 @@
return initrd_path;
}
+int
+set_dtb_path(char *arg)
+{
+ if (strlen(arg) + 1 > sizeof(dtb_path))
+ return ERANGE;
+ strcpy(dtb_path, arg);
+ return 0;
+}
+
+char *
+get_dtb_path(void)
+{
+ return dtb_path;
+}
+
void
print_banner(void)
{
diff -r 3a29446f2d2c -r 831939d40c04 sys/stand/efiboot/efiboot.h
--- a/sys/stand/efiboot/efiboot.h Sun Sep 09 13:32:26 2018 +0000
+++ b/sys/stand/efiboot/efiboot.h Sun Sep 09 13:37:54 2018 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: efiboot.h,v 1.4 2018/09/07 17:30:58 jmcneill Exp $ */
+/* $NetBSD: efiboot.h,v 1.5 2018/09/09 13:37:54 jmcneill Exp $ */
/*-
* Copyright (c) 2016 Kimihiro Nonaka <nonaka%netbsd.org@localhost>
@@ -54,6 +54,8 @@
char *get_default_device(void);
int set_initrd_path(char *);
char *get_initrd_path(void);
+int set_dtb_path(char *);
+char *get_dtb_path(void);
/* console.c */
int ischar(void);
diff -r 3a29446f2d2c -r 831939d40c04 sys/stand/efiboot/efifdt.c
--- a/sys/stand/efiboot/efifdt.c Sun Sep 09 13:32:26 2018 +0000
+++ b/sys/stand/efiboot/efifdt.c Sun Sep 09 13:37:54 2018 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: efifdt.c,v 1.8 2018/09/07 17:30:58 jmcneill Exp $ */
+/* $NetBSD: efifdt.c,v 1.9 2018/09/09 13:37:54 jmcneill Exp $ */
/*-
* Copyright (c) 2018 Jared McNeill <jmcneill%invisible.ca@localhost>
@@ -65,6 +65,16 @@
return 0;
}
+int
+efi_fdt_set_data(void *data)
+{
+ if (fdt_check_header(data) != 0)
+ return EINVAL;
+
+ fdt_data = data;
+ return 0;
+}
+
void *
efi_fdt_data(void)
{
diff -r 3a29446f2d2c -r 831939d40c04 sys/stand/efiboot/efifdt.h
--- a/sys/stand/efiboot/efifdt.h Sun Sep 09 13:32:26 2018 +0000
+++ b/sys/stand/efiboot/efifdt.h Sun Sep 09 13:37:54 2018 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: efifdt.h,v 1.3 2018/09/07 17:30:58 jmcneill Exp $ */
+/* $NetBSD: efifdt.h,v 1.4 2018/09/09 13:37:54 jmcneill Exp $ */
/*-
* Copyright (c) 2018 Jared McNeill <jmcneill%invisible.ca@localhost>
@@ -28,6 +28,7 @@
int efi_fdt_probe(void);
void efi_fdt_memory_map(void);
+int efi_fdt_set_data(void *);
void *efi_fdt_data(void);
int efi_fdt_size(void);
void efi_fdt_show(void);
diff -r 3a29446f2d2c -r 831939d40c04 sys/stand/efiboot/exec.c
--- a/sys/stand/efiboot/exec.c Sun Sep 09 13:32:26 2018 +0000
+++ b/sys/stand/efiboot/exec.c Sun Sep 09 13:37:54 2018 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: exec.c,v 1.4 2018/09/07 17:30:58 jmcneill Exp $ */
+/* $NetBSD: exec.c,v 1.5 2018/09/09 13:37:54 jmcneill Exp $ */
/*-
* Copyright (c) 2018 Jared McNeill <jmcneill%invisible.ca@localhost>
@@ -36,19 +36,17 @@
#define FDT_SPACE (4 * 1024 * 1024)
#define FDT_ALIGN ((2 * 1024 * 1024) - 1)
-static EFI_PHYSICAL_ADDRESS initrd_addr;
-static u_long initrd_size = 0;
+static EFI_PHYSICAL_ADDRESS initrd_addr, dtb_addr;
+static u_long initrd_size = 0, dtb_size = 0;
static int
-load_initrd(void)
+load_file(char *path, EFI_PHYSICAL_ADDRESS *paddr, u_long *psize)
{
EFI_STATUS status;
struct stat st;
ssize_t len;
- char *path;
int fd;
- path = get_initrd_path();
if (strlen(path) == 0)
return 0;
@@ -63,44 +61,44 @@
return errno;
}
if (st.st_size == 0) {
- printf("boot: empty initrd %s\n", path);
+ printf("boot: empty file %s\n", path);
close(fd);
return EINVAL;
}
- initrd_size = st.st_size;
+ *psize = st.st_size;
#ifdef EFIBOOT_ALLOCATE_MAX_ADDRESS
- initrd_addr = EFIBOOT_ALLOCATE_MAX_ADDRESS;
+ *paddr = EFIBOOT_ALLOCATE_MAX_ADDRESS;
status = uefi_call_wrapper(BS->AllocatePages, 4, AllocateMaxAddress, EfiLoaderData,
- EFI_SIZE_TO_PAGES(initrd_size), &initrd_addr);
+ EFI_SIZE_TO_PAGES(*psize), paddr);
#else
- initrd_addr = 0;
+ *paddr = 0;
status = uefi_call_wrapper(BS->AllocatePages, 4, AllocateAnyPages, EfiLoaderData,
- EFI_SIZE_TO_PAGES(initrd_size), &initrd_addr);
+ EFI_SIZE_TO_PAGES(*psize), paddr);
#endif
if (EFI_ERROR(status)) {
- printf("Failed to allocate %lu bytes for initrd image (error %lu)\n",
- initrd_size, status);
+ printf("Failed to allocate %lu bytes for %s (error %lu)\n",
+ *psize, path, status);
close(fd);
return ENOMEM;
}
printf("boot: loading %s ", path);
- len = read(fd, (void *)initrd_addr, initrd_size);
+ len = read(fd, (void *)*paddr, *psize);
close(fd);
- if (len != initrd_size) {
+ if (len != *psize) {
if (len < 0)
printf(": %s\n", strerror(errno));
else
- printf(": returned %ld (expected %ld)\n", len, initrd_size);
+ printf(": returned %ld (expected %ld)\n", len, *psize);
return EIO;
}
printf("done.\n");
- efi_dcache_flush(initrd_addr, initrd_size);
+ efi_dcache_flush(*paddr, *psize);
return 0;
}
@@ -113,7 +111,8 @@
EFI_STATUS status;
int fd;
- load_initrd();
+ load_file(get_initrd_path(), &initrd_addr, &initrd_size);
+ load_file(get_dtb_path(), &dtb_addr, &dtb_size);
memset(marks, 0, sizeof(marks));
fd = loadfile(fname, marks, COUNT_KERNEL | LOAD_NOTE);
@@ -150,6 +149,11 @@
close(fd);
load_offset = 0;
+ if (dtb_addr && efi_fdt_set_data((void *)dtb_addr) != 0) {
+ printf("boot: invalid DTB data\n");
+ goto cleanup;
+ }
+
if (efi_fdt_size() > 0) {
efi_fdt_init((marks[MARK_END] + FDT_ALIGN) & ~FDT_ALIGN, FDT_ALIGN + 1);
efi_fdt_initrd(initrd_addr, initrd_size);
@@ -171,5 +175,10 @@
initrd_addr = 0;
initrd_size = 0;
}
+ if (dtb_addr) {
+ uefi_call_wrapper(BS->FreePages, 2, dtb_addr, EFI_SIZE_TO_PAGES(dtb_size));
+ dtb_addr = 0;
+ dtb_size = 0;
+ }
return EIO;
}
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