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kern: implement KResourceLimit

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This commit is contained in:
Michael Scire 2020-02-06 05:34:38 -08:00
parent 23f5d77f37
commit 1de607c183
17 changed files with 566 additions and 22 deletions
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22
libraries/libmesosphere/source/board/nintendo/switch/kern_k_system_control.cpp
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@ -199,7 +199,7 @@ namespace ams::kern {
g_call_smc_on_panic = kernel_config.Get<smc::KernelConfiguration::UseSecureMonitorPanicCall>();
}
/* Set Program Verification. */
/* Set Kernel Debugging. */
{
/* NOTE: This is used to restrict access to SvcKernelDebug/SvcChangeKernelTraceState. */
/* Mesosphere may wish to not require this, as we'd ideally keep ProgramVerification enabled for userland. */
@ -212,7 +212,25 @@ namespace ams::kern {
smc::ConfigureCarveout(0, carveout.GetAddress(), carveout.GetSize());
}
/* TODO: KResourceLimit initialization. */
/* System ResourceLimit initialization. */
{
/* Construct the resource limit object. */
KResourceLimit &sys_res_limit = Kernel::GetSystemResourceLimit();
KAutoObject::Create(std::addressof(sys_res_limit));
sys_res_limit.Initialize();
/* Set the initial limits. */
const auto [total_memory_size, kernel_memory_size] = KMemoryLayout::GetTotalAndKernelMemorySizes();
const auto &slab_counts = init::GetSlabResourceCounts();
MESOSPHERE_R_ABORT_UNLESS(sys_res_limit.SetLimitValue(ams::svc::LimitableResource_PhysicalMemoryMax, total_memory_size));
MESOSPHERE_R_ABORT_UNLESS(sys_res_limit.SetLimitValue(ams::svc::LimitableResource_ThreadCountMax, slab_counts.num_KThread));
MESOSPHERE_R_ABORT_UNLESS(sys_res_limit.SetLimitValue(ams::svc::LimitableResource_EventCountMax, slab_counts.num_KEvent));
MESOSPHERE_R_ABORT_UNLESS(sys_res_limit.SetLimitValue(ams::svc::LimitableResource_TransferMemoryCountMax, slab_counts.num_KTransferMemory));
MESOSPHERE_R_ABORT_UNLESS(sys_res_limit.SetLimitValue(ams::svc::LimitableResource_SessionCountMax, slab_counts.num_KSession));
/* Reserve system memory. */
MESOSPHERE_ABORT_UNLESS(sys_res_limit.Reserve(ams::svc::LimitableResource_PhysicalMemoryMax, kernel_memory_size));
}
}
/* Randomness. */