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efi_loader: refactor boot device and loaded_image handling

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Get rid of the hacky fake boot-device and duplicate device-path
constructing (which needs to match what efi_disk and efi_net do).
Instead convert over to use efi_device_path helpers to construct
device-paths, and use that to look up the actual boot device.

Also, extract out a helper to plug things in properly to the
loaded_image.  In a following patch we'll want to re-use this in
efi_load_image() to handle the case of loading an image from a
file_path.

Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Rob Clark 2017-09-13 18:05:33 -04:00 • committed by Alexander Graf
parent e15fc33548
commit 95c5553ea2
4 changed files with 101 additions and 148 deletions
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5
include/efi_loader.h
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@ -159,7 +159,7 @@ int efi_disk_register(void);
/* Called by bootefi to make GOP (graphical) interface available */
int efi_gop_register(void);
/* Called by bootefi to make the network interface available */
int efi_net_register(void **handle);
int efi_net_register(void);
/* Called by bootefi to make SMBIOS tables available */
void efi_smbios_register(void);
@ -216,6 +216,9 @@ uint64_t efi_add_memory_map(uint64_t start, uint64_t pages, int memory_type,
int efi_memory_init(void);
/* Adds new or overrides configuration table entry to the system table */
efi_status_t efi_install_configuration_table(const efi_guid_t *guid, void *table);
void efi_setup_loaded_image(struct efi_loaded_image *info, struct efi_object *obj,
struct efi_device_path *device_path,
struct efi_device_path *file_path);
#ifdef CONFIG_EFI_LOADER_BOUNCE_BUFFER
extern void *efi_bounce_buffer;