@@ -217,8 +217,11 @@ Known Issues and Limitations
- Only PSCI CPU\_ON and CPU\_OFF functions are supported
- Linux kernel does not support booting from secure EL2 on Armv8-R AArch64
- Linux KVM does not support Armv8-R AArch64
-- Enabling the FVP parameter `cache_state_modelled` is incompatible with virtio
- devices
+- Device DMA memory cache-coherence issue: the FVP cache_state_modelled
+ parameter will affect the cache coherence behavior of peripherals’ DMA. When
+ users set cache_state_modelled=1, they also have to set
+ cci400.force_on_from_start=1 to force the FVP to enable snooping on upstream
+ ports.
Change Log
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