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kern/loader: make aware of new address space and shadow stack region

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Alula committed 2026-09-15 17:04:50 +02:00
1 parent e6a3d71692
commit 0f15010ba5
25 files changed
+238 -99
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libraries/libmesosphere/include/mesosphere/arch/arm64/kern_cpu_system_registers.hpp
+1
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@@ -81,6 +81,7 @@ namespace ams::kern::arch::arm64::cpu {
MESOSPHERE_CPU_DEFINE_SYSREG_ACCESSORS(SpEl0, sp_el0)
MESOSPHERE_CPU_DEFINE_SYSREG_ACCESSORS(IdAa64Dfr0El1, id_aa64dfr0_el1)
MESOSPHERE_CPU_DEFINE_SYSREG_ACCESSORS(IdAa64Mmfr0El1, id_aa64mmfr0_el1)
MESOSPHERE_CPU_DEFINE_SYSREG_ACCESSORS(PmcrEl0, pmcr_el0)
MESOSPHERE_CPU_DEFINE_SYSREG_ACCESSORS(PmUserEnrEl0, pmuserenr_el0)
libraries/libmesosphere/include/mesosphere/arch/arm64/kern_k_page_table.hpp
+9 -3
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@@ -94,10 +94,10 @@ namespace ams::kern::arch::arm64 {
return KPageTable::GetBlockSize(static_cast<KPageTable::BlockType>(KPageTable::GetBlockType(alignment) + 1));
}
public:
/* TODO: How should this size be determined. Does the KProcess slab count need to go in a header as a define? */
static constexpr size_t NumTtbr0Entries = 81;
static constexpr size_t NumPTEntries = ::ams::kern::init::SlabCountKProcess + 1; /* +1 for kernel. */
private:
static constinit inline const volatile u64 s_ttbr0_entries[NumTtbr0Entries] = {};
static constinit inline const volatile u64 s_ttbr0_entries[NumPTEntries] = {};
static constinit inline const volatile u64 s_tcr_el1_entries[NumPTEntries] = {};
private:
KPageTableManager *m_manager;
u8 m_asid;
@@ -188,6 +188,12 @@ namespace ams::kern::arch::arm64 {
return s_ttbr0_entries[0];
}
static const volatile u64 &GetTcrEL1Entry(size_t index) { return s_tcr_el1_entries[index]; }
static ALWAYS_INLINE u64 GetKernelTcrEL1() {
return s_tcr_el1_entries[0];
}
static ALWAYS_INLINE void ActivateKernel() {
/* Activate, using asid 0 and process id = 0xFFFFFFFF */
cpu::SwitchProcess(GetKernelTtbr0(), 0xFFFFFFFF);
libraries/libmesosphere/include/mesosphere/arch/arm64/kern_k_process_page_table.hpp
+14 -12
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@@ -302,19 +302,21 @@ namespace ams::kern::arch::arm64 {
bool CanContain(KProcessAddress addr, size_t size, KMemoryState state) const { return m_page_table.CanContain(addr, size, state); }
bool CanContain(KProcessAddress addr, size_t size, ams::svc::MemoryState state) const { return m_page_table.CanContain(addr, size, state); }
KProcessAddress GetAddressSpaceStart() const { return m_page_table.GetAddressSpaceStart(); }
KProcessAddress GetHeapRegionStart() const { return m_page_table.GetHeapRegionStart(); }
KProcessAddress GetAliasRegionStart() const { return m_page_table.GetAliasRegionStart(); }
KProcessAddress GetStackRegionStart() const { return m_page_table.GetStackRegionStart(); }
KProcessAddress GetKernelMapRegionStart() const { return m_page_table.GetKernelMapRegionStart(); }
KProcessAddress GetAliasCodeRegionStart() const { return m_page_table.GetAliasCodeRegionStart(); }
KProcessAddress GetAddressSpaceStart() const { return m_page_table.GetAddressSpaceStart(); }
KProcessAddress GetShadowStackRegionStart() const { return m_page_table.GetShadowStackRegionStart(); }
KProcessAddress GetHeapRegionStart() const { return m_page_table.GetHeapRegionStart(); }
KProcessAddress GetAliasRegionStart() const { return m_page_table.GetAliasRegionStart(); }
KProcessAddress GetStackRegionStart() const { return m_page_table.GetStackRegionStart(); }
KProcessAddress GetKernelMapRegionStart() const { return m_page_table.GetKernelMapRegionStart(); }
KProcessAddress GetAliasCodeRegionStart() const { return m_page_table.GetAliasCodeRegionStart(); }
size_t GetAddressSpaceSize() const { return m_page_table.GetAddressSpaceSize(); }
size_t GetHeapRegionSize() const { return m_page_table.GetHeapRegionSize(); }
size_t GetAliasRegionSize() const { return m_page_table.GetAliasRegionSize(); }
size_t GetStackRegionSize() const { return m_page_table.GetStackRegionSize(); }
size_t GetKernelMapRegionSize() const { return m_page_table.GetKernelMapRegionSize(); }
size_t GetAliasCodeRegionSize() const { return m_page_table.GetAliasCodeRegionSize(); }
size_t GetAddressSpaceSize() const { return m_page_table.GetAddressSpaceSize(); }
size_t GetShadowStackRegionSize() const { return m_page_table.GetShadowStackRegionSize(); }
size_t GetHeapRegionSize() const { return m_page_table.GetHeapRegionSize(); }
size_t GetAliasRegionSize() const { return m_page_table.GetAliasRegionSize(); }
size_t GetStackRegionSize() const { return m_page_table.GetStackRegionSize(); }
size_t GetKernelMapRegionSize() const { return m_page_table.GetKernelMapRegionSize(); }
size_t GetAliasCodeRegionSize() const { return m_page_table.GetAliasCodeRegionSize(); }
size_t GetAliasRegionExtraSize() const { return m_page_table.GetAliasRegionExtraSize(); }