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kern: support immortal processes

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Michael Scire 2021-04-07 08:23:21 -07:00 • committed by SciresM
parent 256eb92f4c
commit 2f930c2d5f
4 changed files with 27 additions and 17 deletions
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37
libraries/libmesosphere/source/kern_k_process.cpp
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@ -231,7 +231,7 @@ namespace ams::kern {
return ResultSuccess();
}
Result KProcess::Initialize(const ams::svc::CreateProcessParameter &params, const KPageGroup &pg, const u32 *caps, s32 num_caps, KResourceLimit *res_limit, KMemoryManager::Pool pool) {
Result KProcess::Initialize(const ams::svc::CreateProcessParameter &params, const KPageGroup &pg, const u32 *caps, s32 num_caps, KResourceLimit *res_limit, KMemoryManager::Pool pool, bool immortal) {
MESOSPHERE_ASSERT_THIS();
MESOSPHERE_ASSERT(res_limit != nullptr);
MESOSPHERE_ABORT_UNLESS((params.code_num_pages * PageSize) / PageSize == static_cast<size_t>(params.code_num_pages));
@ -241,6 +241,7 @@ namespace ams::kern {
m_resource_limit = res_limit;
m_system_resource_address = Null<KVirtualAddress>;
m_system_resource_num_pages = 0;
m_is_immortal = immortal;
/* Setup page table. */
/* NOTE: Nintendo passes process ID despite not having set it yet. */
@ -289,6 +290,7 @@ namespace ams::kern {
/* Set pool and resource limit. */
m_memory_pool = pool;
m_resource_limit = res_limit;
m_is_immortal = false;
/* Get the memory sizes. */
const size_t code_num_pages = params.code_num_pages;
@ -406,9 +408,11 @@ namespace ams::kern {
}
Result KProcess::StartTermination() {
/* Finalize the handle table, when we're done. */
/* Finalize the handle table when we're done, if the process isn't immortal. */
ON_SCOPE_EXIT {
m_handle_table.Finalize();
if (!m_is_immortal) {
m_handle_table.Finalize();
}
};
/* Terminate child threads other than the current one. */
@ -416,20 +420,23 @@ namespace ams::kern {
}
void KProcess::FinishTermination() {
/* Release resource limit hint. */
if (m_resource_limit != nullptr) {
m_memory_release_hint = this->GetUsedUserPhysicalMemorySize();
m_resource_limit->Release(ams::svc::LimitableResource_PhysicalMemoryMax, 0, m_memory_release_hint);
}
/* Only allow termination to occur if the process isn't immortal. */
if (!m_is_immortal) {
/* Release resource limit hint. */
if (m_resource_limit != nullptr) {
m_memory_release_hint = this->GetUsedUserPhysicalMemorySize();
m_resource_limit->Release(ams::svc::LimitableResource_PhysicalMemoryMax, 0, m_memory_release_hint);
}
/* Change state. */
{
KScopedSchedulerLock sl;
this->ChangeState(State_Terminated);
}
/* Change state. */
{
KScopedSchedulerLock sl;
this->ChangeState(State_Terminated);
}
/* Close. */
this->Close();
/* Close. */
this->Close();
}
}
void KProcess::Exit() {