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efi: Add ESRT to the EFI system table

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The ESRT is initialised during efi_init_objlist after
efi_initialize_system_table().

The ESRT is recreated from scratch at the following events:
- successful UpdateCapsule;
- FMP instance install.

The code ensures that every ESRT entry has a unique fw_class value.

Limitations:
- The ESRT is not updated if an FMP instance is uninstalled;
- the fields image_type and flags are in the current implementation left
undefined. Setting these values will require a per-platform function
that returns the image_type/flags as a function of the image fw_class.

CC: Heinrich Schuchardt	<xypron.glpk@gmx.de>
CC: Sughosh Ganu <sughosh.ganu@linaro.org>
CC: AKASHI Takahiro <takahiro.akashi@linaro.org>
CC: Ilias Apalodimas <ilias.apalodimas@linaro.org>
CC: Andre Przywara <andre.przywara@arm.com>
CC: Alexander Graf <agraf@csgraf.de>
CC: nd@arm.com
Signed-off-by: Jose Marinho <jose.marinho@arm.com>

Remove two EFI_CALL() indirections.
Move ESRT GUID in efidebug's list of GUIDs.

Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
This commit is contained in:
Jose Marinho 2021-03-02 17:26:38 +00:00 • committed by Heinrich Schuchardt
parent 57cba225fa
commit 64a8aae15c
9 changed files with 584 additions and 4 deletions
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21
include/efi_api.h
View file

@ -1732,6 +1732,23 @@ struct efi_load_file_protocol {
void *buffer);
};
struct efi_system_resource_entry {
efi_guid_t fw_class;
u32 fw_type;
u32 fw_version;
u32 lowest_supported_fw_version;
u32 capsule_flags;
u32 last_attempt_version;
u32 last_attempt_status;
} __packed;
struct efi_system_resource_table {
u32 fw_resource_count;
u32 fw_resource_count_max;
u64 fw_resource_version;
struct efi_system_resource_entry entries[];
} __packed;
/* Boot manager load options */
#define LOAD_OPTION_ACTIVE 0x00000001
#define LOAD_OPTION_FORCE_RECONNECT 0x00000002
@ -1750,6 +1767,10 @@ struct efi_load_file_protocol {
#define ESRT_FW_TYPE_DEVICEFIRMWARE 0x00000002
#define ESRT_FW_TYPE_UEFIDRIVER 0x00000003
#define EFI_SYSTEM_RESOURCE_TABLE_GUID\
EFI_GUID(0xb122a263, 0x3661, 0x4f68,\
0x99, 0x29, 0x78, 0xf8, 0xb0, 0xd6, 0x21, 0x80)
/* Last Attempt Status Values */
#define LAST_ATTEMPT_STATUS_SUCCESS 0x00000000
#define LAST_ATTEMPT_STATUS_ERROR_UNSUCCESSFUL 0x00000001