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Have yellowstone dump the MBR/GPT tables

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Drew Galbraith 2023-06-19 21:54:40 -07:00
parent 0aa38ac4a4
commit a202bf2371
4 changed files with 143 additions and 12 deletions
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35
sys/yellowstone/yellowstone.cpp
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@ -5,12 +5,15 @@
#include <mammoth/process.h>
#include <zcall.h>
#include "hw/gpt.h"
#include "hw/pcie.h"
uint64_t main(uint64_t port_cap) {
dbgln("Yellowstone Initializing.");
check(ParseInitPort(port_cap));
DumpPciEDevices();
uint64_t vaddr;
check(ZAddressSpaceMap(gSelfVmasCap, 0, gBootDenaliVmmoCap, &vaddr));
@ -22,21 +25,29 @@ uint64_t main(uint64_t port_cap) {
.lba = 0,
.size = 1,
};
check(ZChannelSend(local.cap(), sizeof(DenaliRead),
reinterpret_cast<uint8_t*>(&read), 0, nullptr));
check(local.WriteStruct(&read));
DenaliReadResponse resp;
uint64_t mem_cap, bytes, caps;
uint64_t mem_cap;
check(local.ReadStructAndCap(&resp, &mem_cap));
check(CheckMbrIsGpt(mem_cap));
check(ZChannelRecv(local.cap(), sizeof(resp),
reinterpret_cast<uint8_t*>(&resp), 1, &mem_cap, &bytes,
&caps));
DenaliRead read_lba1{
.device_id = 0,
.lba = 1,
.size = 1,
};
check(local.WriteStruct(&read_lba1));
check(local.ReadStructAndCap(&resp, &mem_cap));
check(ReadPartitionHeader(mem_cap));
check(ZAddressSpaceMap(gSelfVmasCap, 0, mem_cap, &vaddr));
uint32_t* mbr = reinterpret_cast<uint32_t*>(vaddr + 0x1FE);
dbgln("MBR: %x", *mbr);
DumpPciEDevices();
DenaliRead read_parts{
.device_id = 0,
.lba = 2,
.size = 10, // FIXME: Dont hardcode this.
};
check(local.WriteStruct(&read_parts));
check(local.ReadStructAndCap(&resp, &mem_cap));
check(ReadPartitionEntries(mem_cap));
dbgln("Yellowstone Finished Successfully.");
return 0;