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Prepare code watching

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momo5502
2022-05-15 21:47:08 +02:00
parent 8510755ea4
commit 11effb4efa
10 changed files with 495 additions and 14 deletions
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21
src/driver/ept.hpp
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@ -23,6 +23,12 @@ namespace vmx
ept_split* next_split{nullptr};
};
struct ept_code_watch_point
{
uint64_t physical_base_address{};
pml1* target_page{};
ept_code_watch_point* next_watch_point{nullptr};
};
struct ept_hook
{
@ -68,11 +74,13 @@ namespace vmx
void initialize();
void install_code_watch_point(uint64_t physical_page);
void install_hook(const void* destination, const void* source, size_t length,
ept_translation_hint* translation_hint = nullptr);
void disable_all_hooks() const;
void handle_violation(guest_context& guest_context) const;
void handle_violation(guest_context& guest_context);
void handle_misconfiguration(guest_context& guest_context) const;
ept_pointer get_ept_pointer() const;
@ -81,13 +89,19 @@ namespace vmx
static ept_translation_hint* generate_translation_hints(const void* destination, size_t length);
static void free_translation_hints(ept_translation_hint* hints);
uint64_t* get_access_records(size_t* count);
private:
DECLSPEC_PAGE_ALIGN pml4 epml4[EPT_PML4E_ENTRY_COUNT];
DECLSPEC_PAGE_ALIGN pml3 epdpt[EPT_PDPTE_ENTRY_COUNT];
DECLSPEC_PAGE_ALIGN pml2 epde[EPT_PDPTE_ENTRY_COUNT][EPT_PDE_ENTRY_COUNT];
uint64_t access_records[1024];
volatile long access_records_barrier{0};
ept_split* ept_splits{nullptr};
ept_hook* ept_hooks{nullptr};
ept_code_watch_point* ept_code_watch_points{nullptr};
pml2* get_pml2_entry(uint64_t physical_address);
pml1* get_pml1_entry(uint64_t physical_address);
@ -97,11 +111,16 @@ namespace vmx
ept_hook* allocate_ept_hook(uint64_t physical_address);
ept_hook* find_ept_hook(uint64_t physical_address) const;
ept_code_watch_point* allocate_ept_code_watch_point();
ept_code_watch_point* find_ept_code_watch_point(uint64_t physical_address) const;
ept_hook* get_or_create_ept_hook(void* destination, ept_translation_hint* translation_hint = nullptr);
void split_large_page(uint64_t physical_address);
void install_page_hook(void* destination, const void* source, size_t length,
ept_translation_hint* translation_hint = nullptr);
void record_access(uint64_t rip);
};
}