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disk/efi: Improve firmware error handling

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This commit is contained in:
mintsuki 2022-09-19 20:48:42 +02:00
parent 87e09dba61
commit e89d834457
1 changed files with 29 additions and 5 deletions
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34
common/drivers/disk.s2.c
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@ -350,22 +350,36 @@ struct volume *disk_volume_from_efi_handle(EFI_HANDLE efi_handle) {
EFI_DISK_IO *cur_disk_io = NULL;
gBS->HandleProtocol(volume_index[i]->efi_handle,
status = gBS->HandleProtocol(volume_index[i]->efi_handle,
&disk_io_guid, (void **)&cur_disk_io);
cur_disk_io->ReadDisk(cur_disk_io,
if (status) {
continue;
}
status = cur_disk_io->ReadDisk(cur_disk_io,
volume_index[i]->block_io->Media->MediaId,
0 + volume_index[i]->first_sect * 512,
sizeof(uint64_t), &compare);
if (status) {
continue;
}
if (compare == signature) {
// Double check
status = disk_io->WriteDisk(disk_io, block_io->Media->MediaId, 0, sizeof(uint64_t), &new_signature);
if (status) {
break;
}
cur_disk_io->ReadDisk(cur_disk_io,
status = cur_disk_io->ReadDisk(cur_disk_io,
volume_index[i]->block_io->Media->MediaId,
0 + volume_index[i]->first_sect * 512,
sizeof(uint64_t), &compare);
if (status) {
continue;
}
if (compare == new_signature) {
ret = volume_index[i];
@ -373,6 +387,9 @@ struct volume *disk_volume_from_efi_handle(EFI_HANDLE efi_handle) {
}
status = disk_io->WriteDisk(disk_io, block_io->Media->MediaId, 0, sizeof(uint64_t), &signature);
if (status) {
break;
}
}
}
@ -490,7 +507,10 @@ fail:
EFI_GUID disk_io_guid = DISK_IO_PROTOCOL;
EFI_DISK_IO *disk_io = NULL;
gBS->HandleProtocol(handles[i], &disk_io_guid, (void **)&disk_io);
status = gBS->HandleProtocol(handles[i], &disk_io_guid, (void **)&disk_io);
if (status) {
continue;
}
EFI_BLOCK_IO *drive = NULL;
@ -503,7 +523,11 @@ fail:
continue;
uint64_t orig;
disk_io->ReadDisk(disk_io, drive->Media->MediaId, 0, sizeof(uint64_t), &orig);
status = disk_io->ReadDisk(disk_io, drive->Media->MediaId, 0, sizeof(uint64_t), &orig);
if (status) {
continue;
}
status = disk_io->WriteDisk(disk_io, drive->Media->MediaId, 0, sizeof(uint64_t), &orig);
struct volume *block = ext_mem_alloc(sizeof(struct volume));