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kern: implement through kip decompression

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This commit is contained in:
Michael Scire 2020-02-17 02:49:21 -08:00
parent cbc73f4407
commit 92521eed2a
12 changed files with 427 additions and 42 deletions
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42
libraries/libmesosphere/source/kern_initial_process.cpp
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@ -52,27 +52,41 @@ namespace ams::kern {
/* Parse process parameters and reserve memory. */
ams::svc::CreateProcessParameter params;
MESOSPHERE_R_ABORT_UNLESS(reader.MakeCreateProcessParameter(std::addressof(params), true));
MESOSPHERE_TODO("Reserve memory");
MESOSPHERE_LOG("Reserving %zx for process %zu\n", params.code_num_pages * PageSize, i);
MESOSPHERE_ABORT_UNLESS(Kernel::GetSystemResourceLimit().Reserve(ams::svc::LimitableResource_PhysicalMemoryMax, params.code_num_pages * PageSize));
/* Create the process, and ensure we don't leak pages. */
/* Create the process. */
KProcess *new_process = nullptr;
{
/* Declare page group to use for process memory. */
KPageGroup pg(std::addressof(Kernel::GetBlockInfoManager()));
/* Allocate memory for the process. */
MESOSPHERE_TODO("Allocate memory for the process");
auto &mm = Kernel::GetMemoryManager();
const auto pool = static_cast<KMemoryManager::Pool>(reader.UsesSecureMemory() ? KMemoryManager::Pool_System : KSystemControl::GetInitialProcessBinaryPool());
MESOSPHERE_R_ABORT_UNLESS(mm.Allocate(std::addressof(pg), params.code_num_pages, KMemoryManager::EncodeOption(pool, KMemoryManager::Direction_FromFront)));
/* Map the process's memory into the temporary region. */
MESOSPHERE_TODO("Map the process's page group");
{
/* Ensure that we do not leak pages. */
KScopedPageGroup spg(pg);
/* Load the process. */
MESOSPHERE_TODO("Load the process");
/* Map the process's memory into the temporary region. */
const auto &temp_region = KMemoryLayout::GetTempRegion();
KProcessAddress temp_address = Null<KProcessAddress>;
MESOSPHERE_R_ABORT_UNLESS(Kernel::GetKernelPageTable().MapPageGroup(std::addressof(temp_address), pg, temp_region.GetAddress(), temp_region.GetSize() / PageSize, KMemoryState_Kernel, KMemoryPermission_KernelReadWrite));
/* Unmap the temporary mapping. */
MESOSPHERE_TODO("Unmap the process's page group");
/* Load the process. */
MESOSPHERE_R_ABORT_UNLESS(reader.Load(temp_address, params));
/* Create a KProcess object. */
MESOSPHERE_TODO("Create a KProcess");
/* Unmap the temporary mapping. */
MESOSPHERE_R_ABORT_UNLESS(Kernel::GetKernelPageTable().UnmapPageGroup(temp_address, pg, KMemoryState_Kernel));
/* Initialize the process. */
MESOSPHERE_TODO("Initialize the process");
/* Create a KProcess object. */
MESOSPHERE_TODO("Create a KProcess");
/* Initialize the process. */
MESOSPHERE_TODO("Initialize the process");
}
}
/* Set the process's memory permissions. */
@ -82,7 +96,7 @@ namespace ams::kern {
MESOSPHERE_TODO("Register the process");
/* Save the process info. */
infos[i].process = /* TODO */ nullptr;
infos[i].process = new_process;
infos[i].stack_size = reader.GetStackSize();
infos[i].priority = reader.GetPriority();