From df9a391757c7fc5a6c88f6d32b82d6f2f860bd1d Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Thu, 31 Aug 2023 09:45:16 +0100 Subject: target/arm: Implement FEAT_HPDS2 as a no-op This feature allows the operating system to set TCR_ELx.HWU* to allow the implementation to use the PBHA bits from the block and page descriptors for for IMPLEMENTATION DEFINED purposes. Since QEMU has no need to use these bits, we may simply ignore them. Signed-off-by: Richard Henderson Reviewed-by: Peter Maydell Message-id: 20230811214031.171020-11-richard.henderson@linaro.org Signed-off-by: Peter Maydell --- docs/system/arm/emulation.rst | 1 + 1 file changed, 1 insertion(+) (limited to 'docs') diff --git a/docs/system/arm/emulation.rst b/docs/system/arm/emulation.rst index bdafc68..2012bbf 100644 --- a/docs/system/arm/emulation.rst +++ b/docs/system/arm/emulation.rst @@ -40,6 +40,7 @@ the following architecture extensions: - FEAT_HAFDBS (Hardware management of the access flag and dirty bit state) - FEAT_HCX (Support for the HCRX_EL2 register) - FEAT_HPDS (Hierarchical permission disables) +- FEAT_HPDS2 (Translation table page-based hardware attributes) - FEAT_I8MM (AArch64 Int8 matrix multiplication instructions) - FEAT_IDST (ID space trap handling) - FEAT_IESB (Implicit error synchronization event) -- cgit v1.1