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efi_loader: implement EFI_DEVICE_PATH_TO_TEXT_PROTOCOL

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ConvertPathToText is implemented for
* type 4    - media device path
* subtype 4 - file path

This is the kind of device path we hand out for block devices.

All other cases may be implemented later.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
[agraf: fix whitespace]
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
xypron.glpk@gmx.de
2017-07-11 22:06:25 +02:00
committed by Alexander Graf
parent 88adae5ef0
commit cc5b70812f
5 changed files with 98 additions and 1 deletions
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24
include/efi_api.h
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@ -395,6 +395,30 @@ struct efi_console_control_protocol
uint16_t *password);
};
#define EFI_DEVICE_PATH_TO_TEXT_PROTOCOL_GUID \
EFI_GUID(0x8b843e20, 0x8132, 0x4852, \
0x90, 0xcc, 0x55, 0x1a, 0x4e, 0x4a, 0x7f, 0x1c)
struct efi_device_path_protocol
{
uint8_t type;
uint8_t sub_type;
uint16_t length;
uint8_t data[];
};
struct efi_device_path_to_text_protocol
{
uint16_t *(EFIAPI *convert_device_node_to_text)(
struct efi_device_path_protocol *device_node,
bool display_only,
bool allow_shortcuts);
uint16_t *(EFIAPI *convert_device_path_to_text)(
struct efi_device_path_protocol *device_path,
bool display_only,
bool allow_shortcuts);
};
#define EFI_GOP_GUID \
EFI_GUID(0x9042a9de, 0x23dc, 0x4a38, \
0x96, 0xfb, 0x7a, 0xde, 0xd0, 0x80, 0x51, 0x6a)