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kern: pass ini1 size from loader to kernel, remove slab memset from init0

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This commit is contained in:
Michael Scire 2023-10-11 02:02:49 -07:00
parent 937ae17f19
commit 2a060d2645
6 changed files with 62 additions and 31 deletions
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14
mesosphere/kernel/source/arch/arm64/init/kern_init_core.cpp
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@ -45,7 +45,7 @@ namespace ams::kern::init {
constinit KInitArguments g_init_arguments[cpu::NumCores];
/* Globals for passing data between InitializeCorePhase1 and InitializeCorePhase2. */
constinit InitialProcessBinaryLayout g_phase2_initial_process_binary_layout{};
constinit InitialProcessBinaryLayoutWithSize g_phase2_initial_process_binary_meta{};
constinit KPhysicalAddress g_phase2_resource_end_phys_addr = Null<KPhysicalAddress>;
constinit u64 g_phase2_linear_region_phys_to_virt_diff = 0;
@ -246,7 +246,7 @@ namespace ams::kern::init {
/* Decode the initial state. */
const auto initial_page_allocator_state = *static_cast<KInitialPageAllocator::State *>(initial_state[0]);
g_phase2_initial_process_binary_layout = *static_cast<InitialProcessBinaryLayout *>(initial_state[1]);
g_phase2_initial_process_binary_meta = *static_cast<InitialProcessBinaryLayoutWithSize *>(initial_state[1]);
/* Restore the page allocator state setup by kernel loader. */
g_initial_page_allocator.InitializeFromState(std::addressof(initial_page_allocator_state));
@ -565,9 +565,6 @@ namespace ams::kern::init {
}
}
/* Clear the slab region. */
std::memset(GetVoidPointer(slab_region_start), 0, slab_region_size);
/* NOTE: Unknown function is called here which is ifdef'd out on retail kernel. */
/* The unknown function is immediately before the function which gets an unknown debug region size, inside this translation unit. */
/* It's likely that this is some kind of initializer for this unknown debug region. */
@ -624,9 +621,10 @@ namespace ams::kern::init {
/* Set the initial process binary physical address. */
/* NOTE: Nintendo does this after pool partition setup, but it's a requirement that we do it before */
/* to retain compatibility with < 5.0.0. */
const KPhysicalAddress ini_address = g_phase2_initial_process_binary_layout.address;
const KPhysicalAddress ini_address = g_phase2_initial_process_binary_meta.layout.address;
const size_t ini_size = g_phase2_initial_process_binary_meta.size;
MESOSPHERE_INIT_ABORT_UNLESS(ini_address != Null<KPhysicalAddress>);
SetInitialProcessBinaryPhysicalAddress(ini_address);
SetInitialProcessBinaryPhysicalAddress(ini_address, ini_size);
/* Setup all other memory regions needed to arrange the pool partitions. */
SetupPoolPartitionMemoryRegions();
@ -640,7 +638,7 @@ namespace ams::kern::init {
/* Check that the region contains the ini. */
MESOSPHERE_INIT_ABORT_UNLESS(ini_region->GetAddress() <= GetInteger(ini_address));
MESOSPHERE_INIT_ABORT_UNLESS(GetInteger(ini_address) + InitialProcessBinarySizeMax <= ini_region->GetEndAddress());
MESOSPHERE_INIT_ABORT_UNLESS(GetInteger(ini_address) + ini_size <= ini_region->GetEndAddress());
MESOSPHERE_INIT_ABORT_UNLESS(ini_region->GetEndAddress() != 0);
}