On Mon, Jul 26, 2021 at 12:07:25PM +0530, Anshuman Khandual wrote: > All required FEAT_LPA2 components for 52 bit PA range are already in place. > Just enable CONFIG_ARM64_PA_BITS_52 on 4K and 16K pages which would select > CONFIG_ARM64_PA_BITS_52_LPA2 activating 52 bit PA range via FEAT_LPA2. > > Signed-off-by: Anshuman Khandual <anshuman.khandual@xxxxxxx> > --- > arch/arm64/Kconfig | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig > index 1999ac6..ce139415 100644 > --- a/arch/arm64/Kconfig > +++ b/arch/arm64/Kconfig > @@ -952,9 +952,9 @@ config ARM64_PA_BITS_48 > > config ARM64_PA_BITS_52 > bool "52-bit (ARMv8.2)" > - depends on ARM64_64K_PAGES > depends on ARM64_PAN || !ARM64_SW_TTBR0_PAN > select ARM64_PA_BITS_52_LPA if ARM64_64K_PAGES > + select ARM64_PA_BITS_52_LPA2 if (ARM64_4K_PAGES || ARM64_16K_PAGES) > help > Enable support for a 52-bit physical address space, introduced as > part of the ARMv8.2-LPA extension. If you do it this way, the text here needs updating and the 8.2 architecture version removed. -- Catalin
