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PartitionTable: Initial GPT Support, Adding Block Limit

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Also added a script to handle creation of GPT partitioned disk (with
GRUB config file). Block limit will be used to disallow potential access
to other partitions.
This commit is contained in:
supercomputer7 2019-10-07 03:12:37 +03:00 • committed by Andreas Kling
parent b5a043cf42
commit de49714f36
10 changed files with 273 additions and 13 deletions
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29
Kernel/init.cpp
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@ -14,6 +14,7 @@
#include <Kernel/Devices/DiskPartition.h>
#include <Kernel/Devices/FloppyDiskDevice.h>
#include <Kernel/Devices/FullDevice.h>
#include <Kernel/Devices/GPTPartitionTable.h>
#include <Kernel/Devices/KeyboardDevice.h>
#include <Kernel/Devices/MBRPartitionTable.h>
#include <Kernel/Devices/MBVGADevice.h>
@ -96,18 +97,34 @@ VFS* vfs;
}
MBRPartitionTable mbr(root_dev);
if (!mbr.initialize()) {
kprintf("init_stage2: couldn't read MBR from disk\n");
hang();
}
auto partition = mbr.partition(partition_number);
if (!partition) {
kprintf("init_stage2: couldn't get partition %d\n", partition_number);
hang();
if (mbr.is_protective_mbr()) {
dbgprintf("GPT Partitioned Storage Detected!\n");
GPTPartitionTable gpt(root_dev);
if (!gpt.initialize()) {
kprintf("init_stage2: couldn't read GPT from disk\n");
hang();
}
auto partition = gpt.partition(partition_number);
if (!partition) {
kprintf("init_stage2: couldn't get partition %d\n", partition_number);
hang();
}
root_dev = *partition;
} else {
dbgprintf("MBR Partitioned Storage Detected!\n");
auto partition = mbr.partition(partition_number);
if (!partition) {
kprintf("init_stage2: couldn't get partition %d\n", partition_number);
hang();
}
root_dev = *partition;
}
root_dev = *partition;
}
auto e2fs = Ext2FS::create(root_dev);