[coreboot-gerrit] Change in coreboot[master]: arch/x86/smbios: Update SMBIOS type 16 Extended Maximum Capacity

[Tim Chu (Code Review)]

Tim Chu has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/49828 )

Change subject: arch/x86/smbios: Update SMBIOS type 16 Extended Maximum Capacity
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arch/x86/smbios: Update SMBIOS type 16 Extended Maximum Capacity

Update Extended Maximum Capacity field in SMBIOS type 16 so that
maximum dimm size can over 2TB.

Tested=Execute "dmidecode -t 16" to check maximum capacity can over 2TB.

Signed-off-by: Tim Chu 
Change-Id: I61901c815f9d0daae102e5077a116c0de87240ef
---
M src/arch/x86/smbios.c
M src/include/smbios.h
2 files changed, 8 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/28/49828/1

diff --git a/src/arch/x86/smbios.c b/src/arch/x86/smbios.c
index aaf989d..9bae0c3 100644
--- a/src/arch/x86/smbios.c
+++ b/src/arch/x86/smbios.c
@@ -1045,7 +1045,12 @@

/* no error information handle available */
    t->memory_error_information_handle = 0xFFFE;
-	t->maximum_capacity = meminfo->max_capacity_mib * (MiB / KiB);
+	if (meminfo->max_capacity_mib < SMBIOS_USE_EXTENDED_MAX_CAPACITY)
+		t->maximum_capacity = meminfo->max_capacity_mib * (MiB / KiB);
+	else {
+		t->maximum_capacity = SMBIOS_USE_EXTENDED_MAX_CAPACITY;
+		t->extended_maximum_capacity = meminfo->max_capacity_mib * MiB;
+	}
    t->number_of_memory_devices = meminfo->number_of_devices;

len += smbios_string_table_len(t->eos);
diff --git a/src/include/smbios.h b/src/include/smbios.h
index e451d17..fd9d1a8 100644
--- a/src/include/smbios.h
+++ b/src/include/smbios.h
@@ -826,6 +826,8 @@
    SMBIOS_EVENTLOG_STATUS_FULL  = 2, /* Bit 1 */
 };

+#define SMBIOS_USE_EXTENDED_MAX_CAPACITY	(1 << 31)
+
 struct smbios_type16 {
    u8 type;
    u8 length;