Bump actions/checkout from 5 to 6

Bumps [actions/checkout](https://github.com/actions/checkout) from 5 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v5...v6)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/dependabot.yml

@@ -1,7 +1,12 @@
 version: 2
 updates:
-- package-ecosystem: gitsubmodule
-  directory: "/"
-  schedule:
-    interval: daily
-  open-pull-requests-limit: 10
+  - package-ecosystem: gitsubmodule
+    directory: "/"
+    schedule:
+      interval: monthly
+    open-pull-requests-limit: 10
+
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: monthly

.github/workflows/build.yml

@@ -20,7 +20,7 @@ jobs:
           - release
     steps:
       - name: Check out files
-        uses: actions/checkout@v3
+        uses: actions/checkout@v6
         with:
           submodules: true
           fetch-depth: 0
@@ -38,13 +38,10 @@ jobs:
         uses: ammaraskar/msvc-problem-matcher@master
 
       - name: Setup DevCmd
-        uses: ilammy/msvc-dev-cmd@v1.12.0
+        uses: ilammy/msvc-dev-cmd@v1.13.0
         with:
           arch: x64
 
-      - name: Setup Ninja
-        uses: ashutoshvarma/setup-ninja@master
-
       - name: Configure CMake
         run: cmake --preset=${{matrix.configuration}}
 
@@ -52,7 +49,7 @@ jobs:
         run: cmake --build --preset=${{matrix.configuration}}
 
       - name: Upload ${{matrix.configuration}} binaries
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v5
         with:
           name: ${{matrix.configuration}} binaries
           path: |

README.md

@@ -1,11 +1,15 @@
+# 🧪 Hypervisor with EPT Hooking Support
 ![license](https://img.shields.io/github/license/momo5502/hypervisor.svg)
 [![build](https://github.com/momo5502/hypervisor/workflows/Build/badge.svg)](https://github.com/momo5502/hypervisor/actions)
 [![paypal](https://img.shields.io/badge/PayPal-support-blue.svg?logo=paypal)](https://paypal.me/momo5502)
 
-# Hypervisor
+A lightweight experimental hypervisor that leverages Intel's VT-x virtualization technology to create stealthy memory hooks using EPT (Extended Page Tables). By manipulating second-level address translation, it enables invisible code execution interception that bypasses traditional memory integrity checks.
 
-Experimental VT-X type 2 hypervisor with EPT hooking/analysis support.
-Basically just a tool I use for reverse engineering and stuff. Nothing too serious.
+## Safety Warnings
+
+- **System Instability**: Improper hypervisor implementation can cause BSODs
+- **Data Loss Risk**: Always backup important data before testing
+- **Ethical Usage**: Only use for legitimate research and educational purposes
 
 ## Credits
 

src/driver/ept.cpp

@@ -291,7 +291,7 @@ namespace vmx
 
 		// --------------------------
 
-		epdpte temp_epdpte{};
+		pml1 temp_epdpte{};
 		temp_epdpte.flags = 0;
 		temp_epdpte.read_access = 1;
 		temp_epdpte.write_access = 1;
@@ -306,7 +306,7 @@ namespace vmx
 
 		// --------------------------
 
-		epde_2mb temp_epde{};
+		pml2 temp_epde{};
 		temp_epde.flags = 0;
 		temp_epde.read_access = 1;
 		temp_epde.write_access = 1;
@@ -400,18 +400,18 @@ namespace vmx
 		}
 
 		const auto* pml2 = reinterpret_cast<pml2_ptr*>(pml2_entry);
-		auto* pml1 = this->find_pml1_table(pml2->page_frame_number * PAGE_SIZE);
-		if (!pml1)
+		auto* pml1_table = this->find_pml1_table(pml2->page_frame_number * PAGE_SIZE);
+		if (!pml1_table)
 		{
-			pml1 = static_cast<epte*>(memory::get_virtual_address(pml2->page_frame_number * PAGE_SIZE));
+			pml1_table = static_cast<pml1*>(memory::get_virtual_address(pml2->page_frame_number * PAGE_SIZE));
 		}
 
-		if (!pml1)
+		if (!pml1_table)
 		{
 			return nullptr;
 		}
 
-		return &pml1[ADDRMASK_EPT_PML1_INDEX(physical_address)];
+		return &pml1_table[ADDRMASK_EPT_PML1_INDEX(physical_address)];
 	}
 
 	pml1* ept::find_pml1_table(const uint64_t physical_address)
@@ -551,7 +551,7 @@ namespace vmx
 
 		auto& split = this->allocate_ept_split();
 
-		epte pml1_template{};
+		pml1 pml1_template{};
 		pml1_template.flags = 0;
 		pml1_template.read_access = 1;
 		pml1_template.write_access = 1;

src/driver/ept.hpp

@@ -17,11 +17,11 @@
 
 namespace vmx
 {
-	using pml4 = ept_pml4;
-	using pml3 = epdpte;
-	using pml2 = epde_2mb;
-	using pml2_ptr = epde;
-	using pml1 = epte;
+	using pml4 = ept_pml4e;
+	using pml3 = ept_pdpte;
+	using pml2 = ept_pde_2mb;
+	using pml2_ptr = ept_pde;
+	using pml1 = ept_pte;
 
 	using pml4_entry = pml4e_64;
 	using pml3_entry = pdpte_64;

src/driver/hypervisor.cpp

@@ -553,7 +553,7 @@ void vmx_enable_syscall_hooks(const bool enable)
 	ia32_vmx_entry_ctls_register entry_ctls_register{};
 
 	vmx_basic_register.flags = __readmsr(IA32_VMX_BASIC);
-	exit_ctls_register.flags = read_vmx(VMCS_CTRL_VMEXIT_CONTROLS);
+	exit_ctls_register.flags = read_vmx(VMCS_CTRL_PRIMARY_VMEXIT_CONTROLS);
 	entry_ctls_register.flags = read_vmx(VMCS_CTRL_VMENTRY_CONTROLS);
 
 	efer_register.flags = __readmsr(IA32_EFER);
@@ -572,7 +572,7 @@ void vmx_enable_syscall_hooks(const bool enable)
 		__vmx_vmwrite(VMCS_CTRL_VMENTRY_CONTROLS, adjust_msr(msr, entry_ctls_register.flags));
 
 		msr.QuadPart = __readmsr(vmx_basic_register.vmx_controls ? IA32_VMX_TRUE_EXIT_CTLS : IA32_VMX_EXIT_CTLS);
-		__vmx_vmwrite(VMCS_CTRL_VMEXIT_CONTROLS, adjust_msr(msr, exit_ctls_register.flags));
+		__vmx_vmwrite(VMCS_CTRL_PRIMARY_VMEXIT_CONTROLS, adjust_msr(msr, exit_ctls_register.flags));
 	}
 
 	__vmx_vmwrite(VMCS_GUEST_EFER, efer_register.flags);
@@ -996,7 +996,7 @@ void setup_vmcs_for_cpu(vmx::state& vm_state)
 
 	ia32_vmx_exit_ctls_register exit_ctls_register{};
 	exit_ctls_register.host_address_space_size = 1;
-	__vmx_vmwrite(VMCS_CTRL_VMEXIT_CONTROLS,
+	__vmx_vmwrite(VMCS_CTRL_PRIMARY_VMEXIT_CONTROLS,
 	              adjust_msr(launch_context->msr_data[15],
 	                         exit_ctls_register.flags));