[PATCH] Handle additional e820 memmap type strings

Eric DeVolder eric.devolder at oracle.com
Wed May 10 09:03:37 PDT 2017


Keep pace with changes to linux arch/x86/kernel/e820.c to
function e820_type_to_string(). With this change, the following
messages from kexec are eliminated (and allows kexec to load):

 Unknown type (Reserved) while parsing /sys/firmware/memmap/8/type.
 Please report this as bug. Using RANGE_RESERVED now.

 Unknown type (Unknown E820 type) while parsing /sys/firmware/memmap/4/type.
 Please report this as bug. Using RANGE_RESERVED now.

Signed-off-by: Eric DeVolder <eric.devolder at oracle.com>
---
 kexec/firmware_memmap.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/kexec/firmware_memmap.c b/kexec/firmware_memmap.c
index 4d84f00..1ee214a 100644
--- a/kexec/firmware_memmap.c
+++ b/kexec/firmware_memmap.c
@@ -164,6 +164,10 @@ static int parse_memmap_entry(const char *entry, struct memory_range *range)
 		range->type = RANGE_RESERVED;
 	else if (strcmp(type, "reserved") == 0)
 		range->type = RANGE_RESERVED;
+	else if (strcmp(type, "Reserved") == 0)
+		range->type = RANGE_RESERVED;
+	else if (strcmp(type, "Unknown E820 type") == 0)
+		range->type = RANGE_RESERVED;
 	else if (strcmp(type, "ACPI Non-volatile Storage") == 0)
 		range->type = RANGE_ACPI_NVS;
 	else if (strcmp(type, "Uncached RAM") == 0)
-- 
2.7.4




More information about the kexec mailing list