Commit 79b46868 authored Jan 09, 2018 by Alexey Kardashevskiy Committed by Michael Ellerman Mar 27, 2018

powerpc/init: Do not advertise radix during client-architecture-support



Currently the pseries kernel advertises radix MMU support even if
the actual support is disabled via the CONFIG_PPC_RADIX_MMU option.

This adds a check for CONFIG_PPC_RADIX_MMU to avoid advertising radix
to the hypervisor.

Suggested-by: Paul Mackerras <paulus@ozlabs.org>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

parent bde709a7

arch/powerpc/kernel/prom_init.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -1111,7 +1111,8 @@ static void __init prom_check_platform_support(void)
		}
		}

		if (supported.radix_mmu && supported.radix_gtse) {
		if (supported.radix_mmu && supported.radix_gtse &&
		IS_ENABLED(CONFIG_PPC_RADIX_MMU)) {
		/* Radix preferred - but we require GTSE for now */
		prom_debug("Asking for radix with GTSE\n");
		ibm_architecture_vec.vec5.mmu = OV5_FEAT(OV5_MMU_RADIX);

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