diff options
Diffstat (limited to 'target/linux/ixp4xx/patches-2.6.23/096-kexec_cmdline.patch')
| -rw-r--r-- | target/linux/ixp4xx/patches-2.6.23/096-kexec_cmdline.patch | 179 |
1 files changed, 0 insertions, 179 deletions
diff --git a/target/linux/ixp4xx/patches-2.6.23/096-kexec_cmdline.patch b/target/linux/ixp4xx/patches-2.6.23/096-kexec_cmdline.patch deleted file mode 100644 index d27a785789..0000000000 --- a/target/linux/ixp4xx/patches-2.6.23/096-kexec_cmdline.patch +++ /dev/null @@ -1,179 +0,0 @@ -Index: linux-2.6.23.17/kernel/ksysfs.c -=================================================================== ---- linux-2.6.23.17.orig/kernel/ksysfs.c -+++ linux-2.6.23.17/kernel/ksysfs.c -@@ -49,6 +49,165 @@ KERNEL_ATTR_RW(uevent_helper); - #endif - - #ifdef CONFIG_KEXEC -+ -+#include <asm/setup.h> -+ -+extern unsigned long kexec_boot_params; -+ -+char kexec_cmdline[COMMAND_LINE_SIZE] = ""; -+ -+static void -+replace_cmdline_tag(void) -+{ -+ char *t; -+ struct tag *real; -+ struct tag *copy; -+ struct tag *rend; -+ int i; -+ -+/* TODO: check the return params */ -+ t = kmalloc(KEXEC_BOOT_PARAMS_SIZE + COMMAND_LINE_SIZE, GFP_KERNEL); -+ memset((void *)t, 0, KEXEC_BOOT_PARAMS_SIZE + COMMAND_LINE_SIZE); -+ -+/* TODO: validate that the boot params are ATAGS, in fact */ -+ -+ copy = (struct tag *)t; -+ real = (struct tag *)kexec_boot_params; -+ rend = (struct tag *)(kexec_boot_params + KEXEC_BOOT_PARAMS_SIZE); -+ while ((real->hdr.size) && (real < rend)) { -+ if (real->hdr.tag != ATAG_CMDLINE) { -+ memcpy((void *)copy, (void *)real, real->hdr.size * 4); -+ copy = tag_next(copy); -+ } -+ real = tag_next(real); -+ } -+ -+/* TODO: validate that we have enough space in the buffer */ -+ -+ i = strlen(kexec_cmdline); -+ if (i) { -+ copy->hdr.tag = ATAG_CMDLINE; -+ copy->hdr.size = (sizeof(struct tag_header) + i + 1 + 4) >> 2; -+ strcpy(copy->u.cmdline.cmdline, kexec_cmdline); -+ copy = tag_next(copy); -+ } -+ -+ copy->hdr.tag = ATAG_NONE; /* Empty tag ends list */ -+ copy->hdr.size = 0; /* zero length */ -+ -+/* TODO: validate that the temporary buffer isn't too full */ -+ -+ memcpy((void *)kexec_boot_params, (void *)t, KEXEC_BOOT_PARAMS_SIZE); -+ -+ kfree(t); /* Don't forget to free the big buffer we used */ -+} -+ -+static ssize_t kexec_cmdline_show(struct kset *kset, char *page) -+{ -+ return sprintf(page, "%s\n", kexec_cmdline); -+} -+ -+static ssize_t kexec_cmdline_store(struct kset *kset, const char *page, -+ size_t count) -+{ -+ if ((count + 1) > COMMAND_LINE_SIZE) -+ count = COMMAND_LINE_SIZE; -+ memcpy(kexec_cmdline, page, count); -+ kexec_cmdline[count] = '\0'; -+ if (count && (kexec_cmdline[count - 1] == '\n')) -+ kexec_cmdline[count - 1] = '\0'; -+ replace_cmdline_tag(); -+ return count; -+} -+KERNEL_ATTR_RW(kexec_cmdline); -+ -+static ssize_t kexec_boot_params_show(struct kset *kset, char *page) -+{ -+ unsigned long *p; -+ char buf[PAGE_SIZE]; -+ int keep_doing; -+ -+ p = (unsigned long *)kexec_boot_params; -+ -+ /* if this doesn't look like atags, just print first few words */ -+ if (p[1] != ATAG_CORE) -+ return sprintf(page, "0x%lx 0x%lx 0x%lx 0x%lx\n", -+ p[0], p[1], p[2], p[3]); -+ -+ /* carefully walk the atag list, and print out the structure */ -+ keep_doing = 1; -+ do { -+ switch (p[1]) { -+ case ATAG_CORE: -+ /* watch out, core tag is permitted to be empty */ -+ if (p[0] == 5) -+ sprintf(buf, -+ "CORE flg=%ld pgsz=%ld rdev=0x%lx\n", -+ p[2], p[3], p[4]); -+ else -+ sprintf(buf,"CORE\n"); -+ break; -+ case ATAG_MEM: -+ sprintf(buf,"MEM %ldM@0x%lx\n", p[2] / (1024 * 1024), -+ p[3]); -+ break; -+ case ATAG_VIDEOTEXT: -+ sprintf(buf,"VIDEOTEXT sz=%ld\n", p[0]); -+ break; -+ case ATAG_RAMDISK: -+ sprintf(buf,"RAMDISK prmpt=%ld %ldK@0x%lx\n", -+ p[2], p[3], p[4]); -+ break; -+ case ATAG_INITRD2: -+ sprintf(buf,"INITRD2 %ldK@0x%lx\n", p[3] / 1024, p[2]); -+ break; -+ case ATAG_SERIAL: -+ sprintf(buf,"SERIAL high=0x%08lx low=0x%08lx\n", -+ p[3], p[2]); -+ break; -+ case ATAG_REVISION: -+ sprintf(buf,"REVISION rev=%ld\n", p[2]); -+ break; -+ case ATAG_VIDEOLFB: -+ sprintf(buf,"VIDEOLFB sz=%ld\n", p[0]); -+ break; -+ case ATAG_CMDLINE: -+ sprintf(buf,"CMD \"%s\"\n", (char *)&p[2]); -+ break; -+ case ATAG_NONE: -+ sprintf(buf,"NONE\n"); -+ keep_doing = 0; -+ break; -+ default: -+ sprintf(buf,"-unknown- sz=%ld\n", p[0]); -+ break; -+ } -+ -+ /* carefully add to page */ -+ if ((strlen(buf) + strlen(page)) < PAGE_SIZE) { -+ strcat(page, buf); -+ } else { -+ keep_doing = 0; -+ } -+ -+ /* stop when we encounter a header length of 0 */ -+ if (p[0] == 0) -+ keep_doing = 0; -+ -+ /* go to the next tag */ -+ p += p[0]; -+ -+ /* stop if we walked off the end of the buffer */ -+ if (p > (unsigned long *)(kexec_boot_params + -+ KEXEC_BOOT_PARAMS_SIZE)) -+ keep_doing = 0; -+ -+ } while (keep_doing); -+ -+ return (strlen(page)); -+} -+KERNEL_ATTR_RO(kexec_boot_params); -+ - static ssize_t kexec_loaded_show(struct kset *kset, char *page) - { - return sprintf(page, "%d\n", !!kexec_image); -@@ -95,6 +254,8 @@ static struct attribute * kernel_attrs[] - #ifdef CONFIG_KEXEC - &kexec_loaded_attr.attr, - &kexec_crash_loaded_attr.attr, -+ &kexec_cmdline_attr.attr, -+ &kexec_boot_params_attr.attr, - #endif - NULL - }; |