Re: [PATCH 1/5] target/arm: Replace ARM_FEATURE_PXN with ID_MMFR0.VMSA check

2020-09-11 Thread Richard Henderson
On 9/10/20 10:38 AM, Peter Maydell wrote: > The ARM_FEATURE_PXN bit indicates whether the CPU supports the PXN > bit in short-descriptor translation table format descriptors. This > is indicated by ID_MMFR0.VMSA being at least 0b0100. Replace the > feature bit with an ID register check, in line

[PATCH 1/5] target/arm: Replace ARM_FEATURE_PXN with ID_MMFR0.VMSA check

2020-09-10 Thread Peter Maydell
The ARM_FEATURE_PXN bit indicates whether the CPU supports the PXN bit in short-descriptor translation table format descriptors. This is indicated by ID_MMFR0.VMSA being at least 0b0100. Replace the feature bit with an ID register check, in line with our preference for ID register checks over