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x86: hob: Try to show a name instead of a GUID

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GUIDs are one of the seven evils of the computer world. They obfuscate the
meaning and require people to look up long hex strings to decode it.

Luckily only a miniscule fraction of the 10^38 possible GUIDs are in use.

Add a way to decode the GUIDs known to U-Boot. Add a few more to the list
for good measure.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass
2020-09-22 14:54:49 -06:00
committed by Bin Meng
parent d11544dfa9
commit 10536ceae9
2 changed files with 66 additions and 2 deletions
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43
cmd/x86/hob.c
View File

@@ -8,6 +8,7 @@
#include <efi.h>
#include <uuid.h>
#include <asm/hob.h>
#include <asm/fsp/fsp_hob.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -26,6 +27,37 @@ static char *hob_type[] = {
"Capsule",
};
static struct guid_name {
efi_guid_t guid;
const char *name;
} guid_name[] = {
{ FSP_HOB_RESOURCE_OWNER_TSEG_GUID, "TSEG" },
{ FSP_HOB_RESOURCE_OWNER_FSP_GUID, "FSP" },
{ FSP_HOB_RESOURCE_OWNER_SMM_PEI_SMRAM_GUID, "SMM PEI SMRAM" },
{ FSP_NON_VOLATILE_STORAGE_HOB_GUID, "NVS" },
{ FSP_VARIABLE_NV_DATA_HOB_GUID, "Variable NVS" },
{ FSP_GRAPHICS_INFO_HOB_GUID, "Graphics info" },
{ FSP_HOB_RESOURCE_OWNER_PCD_DATABASE_GUID1, "PCD database ea" },
{ FSP_HOB_RESOURCE_OWNER_PCD_DATABASE_GUID2, "PCD database 9b" },
{ FSP_HOB_RESOURCE_OWNER_PEIM_DXE_GUID, "PEIM Init DXE" },
{ FSP_HOB_RESOURCE_OWNER_ALLOC_STACK_GUID, "Alloc stack" },
{ FSP_HOB_RESOURCE_OWNER_SMBIOS_MEMORY_GUID, "SMBIOS memory" },
{ {}, "zero-guid" },
{}
};
static const char *guid_to_name(const efi_guid_t *guid)
{
struct guid_name *entry;
for (entry = guid_name; entry->name; entry++) {
if (!guidcmp(guid, &entry->guid))
return entry->name;
}
return NULL;
}
static int do_hob(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
{
const struct hob_header *hdr;
@@ -65,9 +97,16 @@ static int do_hob(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
if (type == HOB_TYPE_MEM_ALLOC || type == HOB_TYPE_RES_DESC ||
type == HOB_TYPE_GUID_EXT) {
const char *name;
guid = (efi_guid_t *)(hdr + 1);
uuid_bin_to_str(guid->b, uuid, UUID_STR_FORMAT_GUID);
printf("%s", uuid);
name = guid_to_name(guid);
if (!name) {
uuid_bin_to_str(guid->b, uuid,
UUID_STR_FORMAT_GUID);
name = uuid;
}
printf("%36s", name);
} else {
printf("%36s", "Not Available");
}