1 files changed, 66 insertions, 0 deletions
diff --git a/meta-openembedded/meta-oe/recipes-devtools/pmtools/pmtools/pmtools-switch-to-dynamic-buffer-for-huge-ACPI-table.patch b/meta-openembedded/meta-oe/recipes-devtools/pmtools/pmtools/pmtools-switch-to-dynamic-buffer-for-huge-ACPI-table.patch
new file mode 100644
index 000000000..7ccdab0f2
--- /dev/null
+++ b/meta-openembedded/meta-oe/recipes-devtools/pmtools/pmtools/pmtools-switch-to-dynamic-buffer-for-huge-ACPI-table.patch
@@ -0,0 +1,66 @@
+From 03a886252f6555d6b0af76b654e76459642b89da Mon Sep 17 00:00:00 2001
+From: Yunguo Wei <yunguo.wei@windriver.com>
+Date: Tue, 3 Dec 2013 18:12:50 +0800
+Subject: [PATCH] pmtools: switch to dynamic buffer for huge ACPI tables
+
+For servers like Canoe Pass or Thunder Ridge, there are much more
+entries in ACPI table, so original 1K buffer is insufficient.
+
+We switch to dynamic buffer on this situation.
+
+Signed-off-by: Yunguo Wei <yunguo.wei@windriver.com>
+
+
+Upstream-Status: Pending
+
+Signed-off-by: Kai Kang <kai.kang@windriver.com>
+---
+ madt/madt.c | 18 +++++++++++++++++-
+ 1 file changed, 17 insertions(+), 1 deletion(-)
+
+diff --git a/madt/madt.c b/madt/madt.c
+index aed965c..8770cd5 100644
+--- a/madt/madt.c
++++ b/madt/madt.c
+@@ -51,7 +51,9 @@ get_next_entry(acpi_table_entry_header * entry_header)
+ 	return retval;
+ }
+ 
+-u8	buffer[1024];
++
++u8	buf[1024];
++u8	*buffer = buf;
+ 
+ main()
+ {
+@@ -75,6 +77,17 @@ main()
+ 
+ 	if (verbose) printf("header.length %d\n", madt_header->header.length);
+ 
++	/* if 1K buffer is insufficient for acpi table, switch to a larger memory buffer */
++	if(expected_length > sizeof(buf)) {
++		buffer = malloc(expected_length);
++		if (!buffer) {
++			perror("malloc");
++			exit(1);
++		}
++		memset(buffer, 0, expected_length);
++		memcpy(buffer, buf, sizeof(struct acpi_table_madt));
++	}
++
+ 	acpi_table_print((void*)&(buffer[bytes_read]), 0);
+ 
+ 	bytes_read = sizeof(struct acpi_table_madt);
+@@ -118,6 +131,9 @@ done:
+ 		printf("Checksum 0x%x != 0; 0x%x in header ERROR\n", csum,
+ 			 madt_header->header.checksum);
+ 
++	if(buffer != buf)
++		free(buffer);
++
+ 	return 0;
+ }
+ 
+-- 
+1.8.1.2
+