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-rw-r--r--src/arch/x86/boot/acpigen.c13
-rw-r--r--src/arch/x86/include/arch/acpigen.h1
2 files changed, 14 insertions, 0 deletions
diff --git a/src/arch/x86/boot/acpigen.c b/src/arch/x86/boot/acpigen.c
index 222a2db284..0689273b0a 100644
--- a/src/arch/x86/boot/acpigen.c
+++ b/src/arch/x86/boot/acpigen.c
@@ -57,6 +57,19 @@ void acpigen_patch_len(int len)
}
+void acpigen_pop_len(void)
+{
+ int len;
+ ASSERT(ltop > 0)
+ char *p = len_stack[--ltop];
+ len = gencurrent - p;
+ ASSERT(len <= ACPIGEN_MAXLEN)
+ /* generate store length for 0xfff max */
+ p[0] = (0x40 | (len & 0xf));
+ p[1] = (len >> 4 & 0xff);
+
+}
+
void acpigen_set_current(char *curr)
{
gencurrent = curr;
diff --git a/src/arch/x86/include/arch/acpigen.h b/src/arch/x86/include/arch/acpigen.h
index 3217dbeca3..d9df5d016a 100644
--- a/src/arch/x86/include/arch/acpigen.h
+++ b/src/arch/x86/include/arch/acpigen.h
@@ -27,6 +27,7 @@
int acpigen_write_len_f(void);
void acpigen_patch_len(int len);
+void acpigen_pop_len(void);
void acpigen_set_current(char *curr);
char *acpigen_get_current(void);
int acpigen_write_package(int nr_el);