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2. Add tip message for 4k native disk.
This commit is contained in:
longpanda 2023-01-13 20:55:40 +08:00
parent e0132ac4b5
commit 4df793e021
46 changed files with 509 additions and 76 deletions
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65
LinuxGUI/Ventoy2Disk/Core/ventoy_util.c
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@ -579,3 +579,68 @@ int ventoy_fill_mbr(uint64_t size, uint64_t reserve, int align4k, MBR_HEAD *pMBR
return 0;
}
int ventoy_fill_mbr_4k(uint64_t size, uint64_t reserve, int align4k, MBR_HEAD *pMBR)
{
ventoy_guid Guid;
uint32_t DiskSignature;
uint32_t DiskSectorCount;
uint32_t PartSectorCount;
uint32_t PartStartSector;
uint32_t ReservedSector;
VentoyGetLocalBootImg(pMBR);
ventoy_gen_preudo_uuid(&Guid);
memcpy(&DiskSignature, &Guid, sizeof(uint32_t));
vdebug("Disk signature: 0x%08x\n", DiskSignature);
memcpy(pMBR->BootCode + 0x1B8, &DiskSignature, 4);
memcpy(pMBR->BootCode + 0x180, &Guid, 16);
if (size / 4096 > 0xFFFFFFFF)
{
DiskSectorCount = 0xFFFFFFFF;
}
else
{
DiskSectorCount = (uint32_t)(size / 4096);
}
if (reserve <= 0)
{
ReservedSector = 0;
}
else
{
ReservedSector = (uint32_t)(reserve / 4096);
}
// check aligned with 4KB
vdebug("no need to align with 4KB for 4K native disk\n");
vlog("ReservedSector: %u\n", ReservedSector);
//Part1
PartStartSector = VTOYIMG_PART_START_SECTOR >> 3;
PartSectorCount = DiskSectorCount - ReservedSector - VTOYEFI_PART_BYTES / 4096 - PartStartSector;
VentoyFillMBRLocation(size, PartStartSector, PartSectorCount, pMBR->PartTbl);
pMBR->PartTbl[0].Active = 0x80; // bootable
pMBR->PartTbl[0].FsFlag = 0x07; // exFAT/NTFS/HPFS
//Part2
PartStartSector += PartSectorCount;
PartSectorCount = VTOYEFI_PART_BYTES / 4096;
VentoyFillMBRLocation(size, PartStartSector, PartSectorCount, pMBR->PartTbl + 1);
pMBR->PartTbl[1].Active = 0x00;
pMBR->PartTbl[1].FsFlag = 0xEF; // EFI System Partition
pMBR->Byte55 = 0x55;
pMBR->ByteAA = 0xAA;
return 0;
}