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kern: refactor init (kill identity map, merge cpu on logic)

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Michael Scire 2023-02-21 10:38:48 -07:00 • committed by SciresM
parent 8db22967bf
commit 035cebef9d
20 changed files with 431 additions and 387 deletions
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25
libraries/libmesosphere/source/kern_k_system_control_base.cpp
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@ -20,6 +20,13 @@
namespace ams::kern {
namespace init {
/* TODO: Is this function name architecture specific? */
void StartOtherCore(const ams::kern::init::KInitArguments *init_args);
}
/* Initialization. */
size_t KSystemControlBase::Init::GetRealMemorySize() {
return ams::kern::MainMemorySize;
@ -68,7 +75,7 @@ namespace ams::kern {
return 0;
}
void KSystemControlBase::Init::CpuOn(u64 core_id, uintptr_t entrypoint, uintptr_t arg) {
void KSystemControlBase::Init::CpuOnImpl(u64 core_id, uintptr_t entrypoint, uintptr_t arg) {
#if defined(ATMOSPHERE_ARCH_ARM64)
MESOSPHERE_INIT_ABORT_UNLESS((::ams::kern::arch::arm64::smc::CpuOn<0, false>(core_id, entrypoint, arg)) == 0);
#else
@ -76,6 +83,22 @@ namespace ams::kern {
#endif
}
void KSystemControlBase::Init::TurnOnCpu(u64 core_id, const ams::kern::init::KInitArguments *args) {
/* Get entrypoint. */
KPhysicalAddress entrypoint = Null<KPhysicalAddress>;
while (!cpu::GetPhysicalAddressReadable(std::addressof(entrypoint), reinterpret_cast<uintptr_t>(::ams::kern::init::StartOtherCore), true)) { /* ... */ }
/* Get arguments. */
KPhysicalAddress args_addr = Null<KPhysicalAddress>;
while (!cpu::GetPhysicalAddressReadable(std::addressof(args_addr), reinterpret_cast<uintptr_t>(args), true)) { /* ... */ }
/* Ensure cache is correct for the initial arguments. */
cpu::StoreDataCacheForInitArguments(args, sizeof(*args));
/* Turn on the cpu. */
KSystemControl::Init::CpuOnImpl(core_id, GetInteger(entrypoint), GetInteger(args_addr));
}
/* Randomness for Initialization. */
void KSystemControlBase::Init::GenerateRandom(u64 *dst, size_t count) {
if (AMS_UNLIKELY(!s_initialized_random_generator)) {