From 3f06f8808f79f13650394bab80bf96426323a5f8 Mon Sep 17 00:00:00 2001 From: Samuel Mendoza-Jonas Date: Wed, 8 Jun 2016 13:51:37 +1000 Subject: [PATCH] discover/boot: Set boot_tty variable before kexec If boot_tty is set or a boot command is sent manually from a certain console, set the boot_tty environment variable to be used by a boot hook before kexec. Signed-off-by: Samuel Mendoza-Jonas --- discover/boot.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/discover/boot.c b/discover/boot.c index 0d3491f..ba6ce25 100644 --- a/discover/boot.c +++ b/discover/boot.c @@ -24,6 +24,7 @@ #include "boot.h" #include "paths.h" #include "resource.h" +#include "platform.h" static const char *boot_hook_dir = PKG_SYSCONF_DIR "/boot.d"; enum { @@ -39,6 +40,7 @@ struct boot_task { const char *local_initrd; const char *local_dtb; const char *args; + const char *boot_tty; boot_status_fn status_fn; void *status_arg; bool dry_run; @@ -206,6 +208,7 @@ static void boot_hook_setenv(struct boot_task *task) unsetenv("boot_initrd"); unsetenv("boot_dtb"); unsetenv("boot_args"); + unsetenv("boot_tty"); setenv("boot_image", task->local_image, 1); if (task->local_initrd) @@ -214,6 +217,8 @@ static void boot_hook_setenv(struct boot_task *task) setenv("boot_dtb", task->local_dtb, 1); if (task->args) setenv("boot_args", task->args, 1); + if (task->boot_tty) + setenv("boot_tty", task->boot_tty, 1); } static int hook_filter(const struct dirent *dirent) @@ -430,6 +435,7 @@ struct boot_task *boot(void *ctx, struct discover_boot_option *opt, boot_status_fn status_fn, void *status_arg) { struct pb_url *image = NULL, *initrd = NULL, *dtb = NULL; + const struct config *config; struct boot_task *boot_task; const char *boot_desc; int rc; @@ -481,6 +487,13 @@ struct boot_task *boot(void *ctx, struct discover_boot_option *opt, boot_task->args = NULL; } + if (cmd && cmd->tty) + boot_task->boot_tty = talloc_strdup(boot_task, cmd->tty); + else { + config = config_get(); + boot_task->boot_tty = config ? config->boot_tty : NULL; + } + /* start async loads for boot resources */ rc = start_url_load(boot_task, "kernel image", image, &boot_task->image) || start_url_load(boot_task, "initrd", initrd, &boot_task->initrd) -- 2.39.2