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[Sys] Successfully spin up a new process from disk.

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This commit is contained in:
Drew Galbraith 2023-11-15 09:47:32 -08:00
parent e5568450c2
commit 7c105c8a31
22 changed files with 415 additions and 191 deletions
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41
sys/denali/denali_server.cpp
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@ -18,7 +18,10 @@ glcr::ErrorCode DenaliServer::HandleRead(const ReadRequest& req,
ASSIGN_OR_RETURN(Mutex mutex, Mutex::Create());
RET_ERR(mutex.Lock());
DmaReadCommand command(req.lba(), req.size(), mutex);
MappedMemoryRegion region =
MappedMemoryRegion::ContiguousPhysical(req.size() * 512);
DmaReadCommand command(req.lba(), req.size(), region.paddr(), mutex);
device->IssueCommand(&command);
// Wait for read operation to complete.
@ -26,8 +29,40 @@ glcr::ErrorCode DenaliServer::HandleRead(const ReadRequest& req,
RET_ERR(mutex.Release());
resp.set_device_id(req.device_id());
resp.set_lba(req.lba());
resp.set_size(req.size());
resp.set_memory(command.GetMemoryRegion());
resp.set_memory(region.cap());
return glcr::OK;
}
glcr::ErrorCode DenaliServer::HandleReadMany(const ReadManyRequest& req,
ReadResponse& resp) {
ASSIGN_OR_RETURN(AhciDevice * device, driver_.GetDevice(req.device_id()));
ASSIGN_OR_RETURN(Mutex mutex, Mutex::Create());
RET_ERR(mutex.Lock());
MappedMemoryRegion region =
MappedMemoryRegion::ContiguousPhysical(req.lba().size() * 512);
auto& vec = req.lba();
uint64_t curr_run_start = 0;
for (uint64_t i = 0; i < vec.size(); i++) {
if (i + 1 < vec.size() && vec.at(i) + 1 == vec.at(i + 1)) {
continue;
}
uint64_t lba = vec.at(curr_run_start);
uint64_t size = (i - curr_run_start) + 1;
uint64_t paddr = region.paddr() + curr_run_start * 512;
DmaReadCommand command(lba, size, paddr, mutex);
device->IssueCommand(&command);
// Wait for read operation to complete.
RET_ERR(mutex.Lock());
curr_run_start = i + 1;
}
resp.set_device_id(req.device_id());
resp.set_size(req.lba().size());
resp.set_memory(region.cap());
return glcr::OK;
}