diff --git a/tensorrt_llm/_torch/speculative/dflash_attention.py b/tensorrt_llm/_torch/speculative/dflash_attention.py
index 63274115deff..3927de7a647d 100644
--- a/tensorrt_llm/_torch/speculative/dflash_attention.py
+++ b/tensorrt_llm/_torch/speculative/dflash_attention.py
@@ -168,6 +168,8 @@ def dflash_trtllm_supports_page_size(tokens_per_block: int, *, has_context_atten
         not has_context_attention
         and is_power_of_two
         and tokens_per_block >= _TRTLLM_GEN_DYNAMIC_PAGE_MIN_TOKENS
+        # The dynamic page-size kernels are verified on SM100 and SM103 only.
+        and get_sm_version() in (100, 103)
     )
 
 
@@ -206,7 +208,8 @@ def validate_dflash_trtllm_gen_runtime(
         raise RuntimeError(
             "DFlash TRTLLM attention does not support context-cache page size "
             f"{tokens_per_block}; supported sizes are {supported}, plus powers of two "
-            f">= {_TRTLLM_GEN_DYNAMIC_PAGE_MIN_TOKENS} without the non-causal context kernel."
+            f">= {_TRTLLM_GEN_DYNAMIC_PAGE_MIN_TOKENS} on SM100/SM103 without the non-causal "
+            "context kernel."
         )
     if has_context_attention and head_dim in FlashInferTrtllmGenFmha.UNSUPPORTED_HEAD_SIZES_CONTEXT:
         raise RuntimeError(
diff --git a/tests/unittest/_torch/executor/kv_cache/test_kv_cache_estimation.py b/tests/unittest/_torch/executor/kv_cache/test_kv_cache_estimation.py
index cf7cac06cace..003b33219835 100644
--- a/tests/unittest/_torch/executor/kv_cache/test_kv_cache_estimation.py
+++ b/tests/unittest/_torch/executor/kv_cache/test_kv_cache_estimation.py
@@ -1514,17 +1514,29 @@ def test_premise_trtllm_gen_page_sizes(self):
         assert max(size for size in supported if size < 128) == 64
 
     @pytest.mark.parametrize(
-        "tokens_per_block, has_context_attention, expected",
-        [(64, True, True), (128, False, True), (128, True, False), (96, False, False)],
+        "tokens_per_block, has_context_attention, sm_version, expected",
+        [
+            (64, True, 103, True),
+            (128, False, 103, True),
+            (128, False, 107, False),
+            (128, True, 103, False),
+            (96, False, 103, False),
+        ],
     )
-    def test_trtllm_page_size_capability(self, tokens_per_block, has_context_attention, expected):
+    def test_trtllm_page_size_capability(
+        self, tokens_per_block, has_context_attention, sm_version, expected
+    ):
         from tensorrt_llm._torch.speculative.dflash_attention import (
             dflash_trtllm_supports_page_size,
         )
 
-        supported = dflash_trtllm_supports_page_size(
-            tokens_per_block, has_context_attention=has_context_attention
-        )
+        with patch(
+            "tensorrt_llm._torch.speculative.dflash_attention.get_sm_version",
+            return_value=sm_version,
+        ):
+            supported = dflash_trtllm_supports_page_size(
+                tokens_per_block, has_context_attention=has_context_attention
+            )
         assert supported is expected
 
     @pytest.mark.parametrize(