graphics: consolidate validation guest checks

src/graphics/host_gpu/renderer/cache/bufferCache.cpp

@@ -241,8 +241,7 @@ BufferCache::~BufferCache() {
 }
 
 void BufferCache::InvalidateMemory(uint64_t vaddr, uint64_t size) {
-	if (vaddr == 0 || size == 0 || vaddr >= TRACKER_ADDRESS_SIZE ||
-	    size > TRACKER_ADDRESS_SIZE - vaddr) {
+	if (!GuestRange {vaddr, size}.Valid()) {
 		EXIT("BufferCache: invalid memory-invalidation range\n");
 	}
 	m_memory_tracker.InvalidateRegion(vaddr, size,
@@ -314,7 +313,7 @@ BufferId BufferCache::FindBuffer(uint64_t vaddr, uint64_t size) {
 	if (vaddr == 0) {
 		return NULL_BUFFER_ID;
 	}
-	if (size == 0 || vaddr >= TRACKER_ADDRESS_SIZE || size > TRACKER_ADDRESS_SIZE - vaddr) {
+	if (!GuestRange {vaddr, size}.Valid()) {
 		EXIT("BufferCache: invalid buffer discovery request\n");
 	}
 	const auto* owner = m_page_table.Find(vaddr >> PageTable::kPageBits);
@@ -443,8 +442,7 @@ std::pair<Buffer*, uint64_t> BufferCache::ObtainBuffer(uint64_t vaddr, uint64_t
                                                        bool is_written, bool is_texel_buffer,
                                                        BufferId id) {
 	auto& command = m_scheduler.Current();
-	if (command.IsInvalid() || vaddr == 0 || size == 0 ||
-	    vaddr >= TRACKER_ADDRESS_SIZE || size > TRACKER_ADDRESS_SIZE - vaddr) {
+	if (command.IsInvalid() || !GuestRange {vaddr, size}.Valid()) {
 		EXIT("BufferCache: buffer request requires a recording command buffer\n");
 	}
 
@@ -474,8 +472,7 @@ std::pair<Buffer*, uint64_t> BufferCache::ObtainBuffer(uint64_t vaddr, uint64_t
 }
 
 std::pair<Buffer*, uint64_t> BufferCache::ObtainBufferForImage(uint64_t vaddr, uint64_t size) {
-	if (vaddr == 0 || size == 0 || vaddr >= TRACKER_ADDRESS_SIZE ||
-	    size > TRACKER_ADDRESS_SIZE - vaddr) {
+	if (!GuestRange {vaddr, size}.Valid()) {
 		EXIT("BufferCache: invalid image source\n");
 	}
 	auto find_owner = [&]() -> Buffer* {
@@ -661,8 +658,7 @@ void BufferCache::CopyBuffer(uint64_t dst_vaddr, uint64_t src_vaddr, uint64_t si
 }
 
 bool BufferCache::IsRegionRegistered(uint64_t vaddr, uint64_t size) {
-	if (vaddr == 0 || size == 0 || vaddr >= TRACKER_ADDRESS_SIZE ||
-	    size > TRACKER_ADDRESS_SIZE - vaddr) {
+	if (!GuestRange {vaddr, size}.Valid()) {
 		EXIT("BufferCache: invalid registered-region query\n");
 	}
 	// Cached buffers are ordered and non-overlapping. The last buffer beginning before the query

src/graphics/host_gpu/renderer/cache/gpuResourceManager.cpp

@@ -35,8 +35,7 @@ bool GpuResourceManager::InvalidateMemory(uint64_t vaddr, uint64_t size) {
 }
 
 bool GpuResourceManager::IsMapped(uint64_t vaddr, uint64_t size) const noexcept {
-	if (vaddr == 0 || size == 0 || vaddr >= TRACKER_ADDRESS_SIZE ||
-	    size > TRACKER_ADDRESS_SIZE - vaddr) {
+	if (!GuestRange {vaddr, size}.Valid()) {
 		return false;
 	}
 	std::shared_lock lock(m_mapped_ranges_mutex);