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CONFIG_ARM_PATCH_PHYS_VIRT: Patch physical to virtual translations at runtime (EXPERIMENTAL)

General informations

The Linux kernel configuration item CONFIG_ARM_PATCH_PHYS_VIRT has multiple definitions:

Patch physical to virtual translations at runtime (EXPERIMENTAL) found in arch/arm/Kconfig

The configuration item CONFIG_ARM_PATCH_PHYS_VIRT:

Help text

Patch phys-to-virt and virt-to-phys translation functions at boot and module load time according to the position of the kernel in system memory.

This can only be used with non-XIP MMU kernels where the base of physical memory is at a 16MB boundary, or theoretically 64K for the MSM machine class.

Patch physical to virtual translations at runtime found in arch/arm/Kconfig

The configuration item CONFIG_ARM_PATCH_PHYS_VIRT:

Help text

Patch phys-to-virt and virt-to-phys translation functions at boot and module load time according to the position of the kernel in system memory.

This can only be used with non-XIP MMU kernels where the base of physical memory is at a 16MB boundary.

Only disable this option if you know that you do not require this feature (eg, building a kernel for a single machine) and you need to shrink the kernel to the minimal size.

Hardware

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