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[block] Allow for additional SAN boot parameters alongside filename

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The drive specification alone does not necessarily contain enough
information to perform a SAN boot (or local disk boot) under UEFI.  If
the next-stage bootloader is installed in the EFI system partition
under a non-standard name (e.g. "\EFI\debian\grubx64.efi") then this
explicit boot filename must also be specified.

Generalise this concept to use a "SAN boot configuration parameters"
structure (currently containing only the optional explicit boot
filename), to allow for easy expansion to provide other parameters
such as the partition UUID or volume label.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2024-03-05 20:20:10 +00:00
parent b1c13cc43e
commit 636ccb4ca5
8 changed files with 45 additions and 23 deletions
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3
src/include/usr/autoboot.h
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@@ -14,6 +14,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
struct net_device;
struct uri;
struct settings;
struct san_boot_config;
/** uriboot() flags */
enum uriboot_flags {
@@ -33,7 +34,7 @@ extern void set_autoboot_ll_addr ( const void *ll_addr, size_t len,
extern int uriboot ( struct uri *filename, struct uri **root_paths,
unsigned int root_path_count, int drive,
const char *san_filename, unsigned int flags );
struct san_boot_config *san_config, unsigned int flags );
extern struct uri *
fetch_next_server_and_filename ( struct settings *settings );
extern int netboot ( struct net_device *netdev );