diff options
Diffstat (limited to 'target/linux/generic/patches-3.1/333-mips-kexec-get-kernel-parameters-from-kexec-tools.patch')
| -rw-r--r-- | target/linux/generic/patches-3.1/333-mips-kexec-get-kernel-parameters-from-kexec-tools.patch | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/target/linux/generic/patches-3.1/333-mips-kexec-get-kernel-parameters-from-kexec-tools.patch b/target/linux/generic/patches-3.1/333-mips-kexec-get-kernel-parameters-from-kexec-tools.patch deleted file mode 100644 index 9da936314c..0000000000 --- a/target/linux/generic/patches-3.1/333-mips-kexec-get-kernel-parameters-from-kexec-tools.patch +++ /dev/null @@ -1,88 +0,0 @@ -From 240c76841b26f1b09aaced33414ee1d08b6454cf Mon Sep 17 00:00:00 2001 -From: Wu Zhangjin <wuzhangjin@gmail.com> -Date: Sat, 15 Jan 2011 12:46:03 +0000 -Subject: MIPS: Get kernel parameters from kexec-tools - -Before, we simply use the command lines from the original bootloader, -but it is not convenient. Now, we accept the kernel parameters from the ---command-line or --append option of the kexec-tools. But If not ---command-line or --apend option indicated, will fall back to use the -ones from the original bootloader. - -Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> ---- ---- a/arch/mips/kernel/machine_kexec.c -+++ b/arch/mips/kernel/machine_kexec.c -@@ -13,6 +13,7 @@ - #include <asm/bootinfo.h> - #include <asm/cacheflush.h> - #include <asm/page.h> -+#include <asm/uaccess.h> - - int (*_machine_kexec_prepare)(struct kimage *) = NULL; - void (*_machine_kexec_shutdown)(void) = NULL; -@@ -35,6 +36,56 @@ static void machine_kexec_init_args(void - pr_info("kexec_args[3] (desc): %p\n", (void *)kexec_args[3]); - } - -+#define ARGV_MAX_ARGS (COMMAND_LINE_SIZE / 15) -+ -+int machine_kexec_pass_args(struct kimage *image) -+{ -+ int i, argc = 0; -+ char *bootloader = "kexec"; -+ int *kexec_argv = (int *)kexec_args[1]; -+ -+ for (i = 0; i < image->nr_segments; i++) { -+ if (!strncmp(bootloader, (char *)image->segment[i].buf, -+ strlen(bootloader))) { -+ /* -+ * convert command line string to array -+ * of parameters (as bootloader does). -+ */ -+ /* -+ * Note: we do treat the 1st string "kexec" as an -+ * argument ;-) so, argc here is 1. -+ */ -+ char *str = (char *)image->segment[i].buf; -+ char *ptr = strchr(str, ' '); -+ char *kbuf = (char *)kexec_argv[0]; -+ /* Whenever --command-line or --append used, "kexec" is copied */ -+ argc = 1; -+ /* Parse the offset */ -+ while (ptr && (ARGV_MAX_ARGS > argc)) { -+ *ptr = '\0'; -+ if (ptr[1] != ' ' && ptr[1] != '\0') { -+ int offt = (int)(ptr - str + 1); -+ kexec_argv[argc] = (int)kbuf + offt; -+ argc++; -+ } -+ ptr = strchr(ptr + 1, ' '); -+ } -+ if (argc > 1) { -+ /* Copy to kernel space */ -+ copy_from_user(kbuf, (char *)image->segment[i].buf, image->segment[i].bufsz); -+ fw_arg0 = kexec_args[0] = argc; -+ } -+ break; -+ } -+ } -+ -+ pr_info("argc = %lu\n", kexec_args[0]); -+ for (i = 0; i < kexec_args[0]; i++) -+ pr_info("argv[%d] = %p, %s\n", i, (char *)kexec_argv[i], (char *)kexec_argv[i]); -+ -+ return 0; -+} -+ - int - machine_kexec_prepare(struct kimage *kimage) - { -@@ -45,6 +96,7 @@ machine_kexec_prepare(struct kimage *kim - * This can be overrided by _machine_kexec_prepare(). - */ - machine_kexec_init_args(); -+ machine_kexec_pass_args(kimage); - - if (_machine_kexec_prepare) - return _machine_kexec_prepare(kimage); |