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efi_loader: export root node handle

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This is a preparatory patch.
The root node handle will be used as a dummy parent handle when invoking
an EFI image from bootefi/bootmgr command.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>

Rebased.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
This commit is contained in:
AKASHI Takahiro 2019-04-16 13:24:20 +09:00 • committed by Heinrich Schuchardt
parent f86076d885
commit a2a4bc3b09
2 changed files with 6 additions and 2 deletions
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3
include/efi_loader.h
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@ -25,6 +25,9 @@
EFI_GUID(0xe61d73b9, 0xa384, 0x4acc, \ EFI_GUID(0xe61d73b9, 0xa384, 0x4acc, \
0xae, 0xab, 0x82, 0xe8, 0x28, 0xf3, 0x62, 0x8b) 0xae, 0xab, 0x82, 0xe8, 0x28, 0xf3, 0x62, 0x8b)
/* Root node */
extern efi_handle_t efi_root;
int __efi_entry_check(void); int __efi_entry_check(void);
int __efi_exit_check(void); int __efi_exit_check(void);
const char *__efi_nesting(void); const char *__efi_nesting(void);

5
lib/efi_loader/efi_root_node.c
View file

@ -11,6 +11,8 @@
const efi_guid_t efi_u_boot_guid = U_BOOT_GUID; const efi_guid_t efi_u_boot_guid = U_BOOT_GUID;
efi_handle_t efi_root = NULL;
struct efi_root_dp { struct efi_root_dp {
struct efi_device_path_vendor vendor; struct efi_device_path_vendor vendor;
struct efi_device_path end; struct efi_device_path end;
@ -26,7 +28,6 @@ struct efi_root_dp {
*/ */
efi_status_t efi_root_node_register(void) efi_status_t efi_root_node_register(void)
{ {
efi_handle_t root = NULL;
struct efi_root_dp *dp; struct efi_root_dp *dp;
/* Create device path protocol */ /* Create device path protocol */
@ -46,7 +47,7 @@ efi_status_t efi_root_node_register(void)
dp->end.length = sizeof(struct efi_device_path); dp->end.length = sizeof(struct efi_device_path);
/* Create root node and install protocols */ /* Create root node and install protocols */
return EFI_CALL(efi_install_multiple_protocol_interfaces(&root, return EFI_CALL(efi_install_multiple_protocol_interfaces(&efi_root,
/* Device path protocol */ /* Device path protocol */
&efi_guid_device_path, dp, &efi_guid_device_path, dp,
/* Device path to text protocol */ /* Device path to text protocol */