From 10536ceae993153ceaa40e64a267263e20051dec Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Tue, 22 Sep 2020 14:54:49 -0600 Subject: [PATCH] x86: hob: Try to show a name instead of a GUID 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 Reviewed-by: Bin Meng --- arch/x86/include/asm/fsp/fsp_hob.h | 25 +++++++++++++++++ cmd/x86/hob.c | 43 ++++++++++++++++++++++++++++-- 2 files changed, 66 insertions(+), 2 deletions(-) diff --git a/arch/x86/include/asm/fsp/fsp_hob.h b/arch/x86/include/asm/fsp/fsp_hob.h index d248520e97..ea3983e04f 100644 --- a/arch/x86/include/asm/fsp/fsp_hob.h +++ b/arch/x86/include/asm/fsp/fsp_hob.h @@ -99,4 +99,29 @@ struct __packed hob_graphics_info { EFI_GUID(0x39f62cce, 0x6825, 0x4669, \ 0xbb, 0x56, 0x54, 0x1a, 0xba, 0x75, 0x3a, 0x07) +/* The following GUIDs are observed with FSP 2.1 / Apollo Lake */ +#define FSP_HOB_RESOURCE_OWNER_SMM_PEI_SMRAM_GUID \ + EFI_GUID(0x6dadf1d1, 0xd4cc, 0x4910, \ + 0xbb, 0x6e, 0x82, 0xb1, 0xfd, 0x80, 0xff, 0x3d) + +#define FSP_HOB_RESOURCE_OWNER_PCD_DATABASE_GUID1 \ + EFI_GUID(0xea296d92, 0x0b69, 0x423c, \ + 0x8c, 0x28, 0x33, 0xb4, 0xe0, 0xa9, 0x12, 0x68) + +#define FSP_HOB_RESOURCE_OWNER_PCD_DATABASE_GUID2 \ + EFI_GUID(0x9b3ada4f, 0xae56, 0x4c24, \ + 0x8d, 0xea, 0xf0, 0x3b, 0x75, 0x58, 0xae, 0x50) + +#define FSP_HOB_RESOURCE_OWNER_PEIM_DXE_GUID \ + EFI_GUID(0x86d70125, 0xbaa3, 0x4296, \ + 0xa6, 0x2f, 0x60, 0x2b, 0xeb, 0xbb, 0x90, 0x81) + +#define FSP_HOB_RESOURCE_OWNER_ALLOC_STACK_GUID \ + EFI_GUID(0x4ed4bf27, 0x4092, 0x42e9, \ + 0x80, 0x7d, 0x52, 0x7b, 0x1d, 0x00, 0xc9, 0xbd) + +#define FSP_HOB_RESOURCE_OWNER_SMBIOS_MEMORY_GUID \ + EFI_GUID(0x01a1108c, 0x9dee, 0x4984, \ + 0x88, 0xc3, 0xee, 0xe8, 0xc4, 0x9e, 0xfb, 0x89) + #endif diff --git a/cmd/x86/hob.c b/cmd/x86/hob.c index e3f512beee..98a6760008 100644 --- a/cmd/x86/hob.c +++ b/cmd/x86/hob.c @@ -8,6 +8,7 @@ #include #include #include +#include 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"); } -- 2.39.5