Allow dynamic size for the {s,}elfboot bounce buffer.

[coreboot.git] / src / boot / elfboot.c

diff --git a/src/boot/elfboot.c b/src/boot/elfboot.c
index acffb634dac94e643f3989bb9e57e9cd3037eacb..e6339627991088b88c8955d79f56d8c924fef08d 100644 (file)
--- a/src/boot/elfboot.c
+++ b/src/boot/elfboot.c
@@ -122,6 +122,8 @@ int verify_ip_checksum(
  * 
  */
 
+static unsigned long bounce_size;
+
 static unsigned long get_bounce_buffer(struct lb_memory *mem)
 {
        unsigned long lb_size;
@@ -130,7 +132,8 @@ static unsigned long get_bounce_buffer(struct lb_memory *mem)
        int i;
        lb_size = (unsigned long)(&_eram_seg - &_ram_seg);
        /* Double coreboot size so I have somewhere to place a copy to return to */
-       lb_size = lb_size + lb_size;
+       bounce_size = lb_size;
+       lb_size = bounce_size + lb_size;
        mem_entries = (mem->size - sizeof(*mem))/sizeof(mem->map[0]);
        buffer = 0;
        for(i = 0; i < mem_entries; i++) {
@@ -610,7 +613,7 @@ int elfload(struct lb_memory *mem,
        post_code(0xfe);
 
        /* Jump to kernel */
-       jmp_to_elf_entry(entry, bounce_buffer);
+       jmp_to_elf_entry(entry, bounce_buffer, bounce_size);
        return 1;
 
  out: