commit 9572fe1652a954f8e7b7a15300f680d1c9e016c6
author Gabe Black <gabeblack@google.com> Tue Nov 08 20:53:24 2016 -0800
committer Gabe Black <gabeblack@chromium.org> Wed Nov 09 17:53:22 2016 -0800
tree 09bf258579801ac098a9a474c95479791b25c38c
parent 95390b60ee7f85729be925183df70b4fdb7a1c24

netboot: Support gigaboot when not running on UEFI.

These don't support a ramdisk since there isn't yet a good way to allocate
large blocks of memory when not hosted.

Change-Id: Ie4de1a09938e8ef23ebe3a7192b261c27945d8c5

src/debug/netboot.c

diff --git a/src/debug/netboot.c b/src/debug/netboot.c
index 6094dbf..8953919 100644
--- a/src/debug/netboot.c
+++ b/src/debug/netboot.c
@@ -18,8 +18,10 @@
  */
 
 #include <stdio.h>
+#include <string.h>
 
 #include "drivers/console/display.h"
+#include "net/gigaboot/gigaboot.h"
 #include "net/netboot/netboot.h"
 #include "net/netboot/params.h"
 
@@ -28,10 +30,33 @@
  * the symbols from stubs.c. They must never be linked into production images!
  */
 
+GigabootBuffer *gigaboot_get_buffer(const char *name, size_t size)
+{
+	static GigabootBuffer kernel = {
+		.data = (void *)(uintptr_t)CONFIG_KERNEL_START,
+		.size = CONFIG_KERNEL_SIZE,
+	};
+
+	static char cmdline_buf[4096];
+	static GigabootBuffer cmdline = {
+		.data = cmdline_buf,
+		.size = sizeof(cmdline_buf),
+	};
+
+	if (!strcmp(name, gigaboot_buffer_kernel))
+		return &kernel;
+	if (!strcmp(name, gigaboot_buffer_cmdline))
+		return &cmdline;
+	return NULL;
+}
+
 void dc_dev_netboot(void)
 {
 	if (CONFIG_DRIVER_CONSOLE_DISPLAY)
 		display_console_attach();
 
-	netboot(NULL, 0);
+	if (CONFIG_GIGABOOT)
+		gigaboot();
+	else
+		netboot(NULL, 0);
 }

src/module/netboot.c

diff --git a/src/module/netboot.c b/src/module/netboot.c
index a67ade8..8599c86 100644
--- a/src/module/netboot.c
+++ b/src/module/netboot.c
@@ -22,6 +22,7 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <vboot_nvstorage.h>
 #include <vboot_api.h>
 
@@ -33,10 +34,31 @@
 #include "drivers/net/net.h"
 #include "drivers/timer/timer.h"
 #include "module/module.h"
+#include "net/gigaboot/gigaboot.h"
 #include "net/netboot/netboot.h"
 #include "net/netboot/params.h"
 #include "vboot/vbnv.h"
 
+GigabootBuffer *gigaboot_get_buffer(const char *name, size_t size)
+{
+	static GigabootBuffer kernel = {
+		.data = (void *)(uintptr_t)CONFIG_KERNEL_START,
+		.size = CONFIG_KERNEL_SIZE,
+	};
+
+	static char cmdline_buf[4096];
+	static GigabootBuffer cmdline = {
+		.data = cmdline_buf,
+		.size = sizeof(cmdline_buf),
+	};
+
+	if (!strcmp(name, gigaboot_buffer_kernel))
+		return &kernel;
+	if (!strcmp(name, gigaboot_buffer_cmdline))
+		return &cmdline;
+	return NULL;
+}
+
 static void enable_graphics(void)
 {
 	if (CONFIG_DRIVER_CONSOLE_DISPLAY)
@@ -70,5 +92,8 @@
 
 	srand(timer_raw_value());
 
-	netboot(cmd_line, sizeof(cmd_line));
+	if (CONFIG_GIGABOOT)
+		gigaboot();
+	else
+		netboot(cmd_line, sizeof(cmd_line));
 }