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authorAlexey Kardashevskiy <aik@ozlabs.ru>2018-01-09 06:45:20 +0100
committerMichael Ellerman <mpe@ellerman.id.au>2018-03-27 14:44:55 +0200
commit79b4686857029cdea97d0102d179aef2f58e5acb (patch)
treec78ee3de344bfa3df8e72cb3e0543ee921144c38 /arch/powerpc/kernel/prom_init.c
parentpowerpc/mm: Fix section mismatch warning in stop_machine_change_mapping() (diff)
downloadlinux-79b4686857029cdea97d0102d179aef2f58e5acb.tar.xz
linux-79b4686857029cdea97d0102d179aef2f58e5acb.zip
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>
Diffstat (limited to 'arch/powerpc/kernel/prom_init.c')
-rw-r--r--arch/powerpc/kernel/prom_init.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index d22c41c26bb3..8ca3f4c915e3 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -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);