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-rw-r--r--src/video_core/dma_pusher.cpp24
-rw-r--r--src/video_core/dma_pusher.h3
2 files changed, 27 insertions, 0 deletions
diff --git a/src/video_core/dma_pusher.cpp b/src/video_core/dma_pusher.cpp
index 9c49c6153..105b85a92 100644
--- a/src/video_core/dma_pusher.cpp
+++ b/src/video_core/dma_pusher.cpp
@@ -2,6 +2,7 @@
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
+#include "common/cityhash.h"
#include "common/microprofile.h"
#include "core/core.h"
#include "core/memory.h"
@@ -12,6 +13,20 @@
namespace Tegra {
+void CommandList::RefreshIntegrityChecks(GPU& gpu) {
+ command_list_hashes.resize(command_lists.size());
+
+ for (std::size_t index = 0; index < command_lists.size(); ++index) {
+ const CommandListHeader command_list_header = command_lists[index];
+ std::vector<CommandHeader> command_headers(command_list_header.size);
+ gpu.MemoryManager().ReadBlockUnsafe(command_list_header.addr, command_headers.data(),
+ command_list_header.size * sizeof(u32));
+ command_list_hashes[index] =
+ Common::CityHash64(reinterpret_cast<char*>(command_headers.data()),
+ command_list_header.size * sizeof(u32));
+ }
+}
+
DmaPusher::DmaPusher(Core::System& system, GPU& gpu) : gpu{gpu}, system{system} {}
DmaPusher::~DmaPusher() = default;
@@ -80,6 +95,15 @@ bool DmaPusher::Step() {
command_headers.resize(command_list_header.size);
gpu.MemoryManager().ReadBlockUnsafe(dma_get, command_headers.data(),
command_list_header.size * sizeof(u32));
+
+ // Integrity check
+ const u64 new_hash = Common::CityHash64(reinterpret_cast<char*>(command_headers.data()),
+ command_list_header.size * sizeof(u32));
+ if (new_hash != next_hash) {
+ LOG_CRITICAL(HW_GPU, "CommandList at addr=0x{:X} is corrupt, skipping!", dma_get);
+ dma_pushbuffer.pop();
+ return true;
+ }
}
for (std::size_t index = 0; index < command_headers.size();) {
const CommandHeader& command_header = command_headers[index];
diff --git a/src/video_core/dma_pusher.h b/src/video_core/dma_pusher.h
index 99b30ca0d..8496ba2da 100644
--- a/src/video_core/dma_pusher.h
+++ b/src/video_core/dma_pusher.h
@@ -91,7 +91,10 @@ struct CommandList final {
explicit CommandList(std::vector<Tegra::CommandHeader>&& prefetch_command_list)
: prefetch_command_list{std::move(prefetch_command_list)} {}
+ void RefreshIntegrityChecks(GPU& gpu);
+
std::vector<Tegra::CommandListHeader> command_lists;
+ std::vector<u64> command_list_hashes;
std::vector<Tegra::CommandHeader> prefetch_command_list;
};