summaryrefslogtreecommitdiff
path: root/arch/x86/lib/bootm.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/x86/lib/bootm.c')
-rw-r--r--arch/x86/lib/bootm.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/x86/lib/bootm.c b/arch/x86/lib/bootm.c
index 733dd712570..667e5e689e3 100644
--- a/arch/x86/lib/bootm.c
+++ b/arch/x86/lib/bootm.c
@@ -223,3 +223,21 @@ int do_bootm_linux(int flag, int argc, char *const argv[],
return boot_jump_linux(images);
}
+
+static ulong get_sp(void)
+{
+ ulong ret;
+
+#if CONFIG_IS_ENABLED(X86_64)
+ ret = gd->start_addr_sp;
+#else
+ asm("mov %%esp, %0" : "=r"(ret) : );
+#endif
+
+ return ret;
+}
+
+void arch_lmb_reserve(struct lmb *lmb)
+{
+ arch_lmb_reserve_generic(lmb, get_sp(), gd->ram_top, 4096);
+}