[common/virtual_buffer] Fix Windows on Snapdragon 7C realizing virtual pages before they're needed

Signed-off-by: lizzie <lizzie@eden-emu.dev>

src/common/virtual_buffer.cpp

@@ -17,7 +17,11 @@ namespace Common {
 
 void* AllocateMemoryPages(std::size_t size) noexcept {
 #ifdef _WIN32
-    void* base = VirtualAlloc(nullptr, size, MEM_COMMIT, PAGE_READWRITE);
+    void* base = VirtualAlloc(nullptr, size, MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE);
+    if (base == nullptr) {
+        // Probably failing to reserve is less likely than failing to commit
+        base = VirtualAlloc(nullptr, size, MEM_COMMIT, PAGE_READWRITE);
+    }
 #else
     void* base = mmap(nullptr, size, PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE, -1, 0);
     if (base == MAP_FAILED)