From: Paul Mackerras Date: Tue, 21 Mar 2017 01:38:02 +0000 (+1100) Subject: Revert "powerpc/64: Disable use of radix under a hypervisor" X-Git-Tag: v4.11-rc4~6^2~1 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=fc36a903265c18d124cefaba364a7fa71b21be61;p=linux.git Revert "powerpc/64: Disable use of radix under a hypervisor" This reverts commit 3f91a89d424a79f8082525db5a375e438887bb3e. Now that we do have the machinery for using the radix MMU under a hypervisor, the extra check and comment introduced in 3f91a89d424a are no longer correct. The result is that when booted under a hypervisor that only allows use of radix, we clear the MMU_FTR_TYPE_RADIX and then set it again, and print a warning about ignoring the disable_radix command line option, even though the command line does not include "disable_radix". Signed-off-by: Paul Mackerras Signed-off-by: Michael Ellerman --- diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c index 9be992083d2a..c22f207aa656 100644 --- a/arch/powerpc/mm/init_64.c +++ b/arch/powerpc/mm/init_64.c @@ -397,8 +397,7 @@ static void early_check_vec5(void) void __init mmu_early_init_devtree(void) { /* Disable radix mode based on kernel command line. */ - /* We don't yet have the machinery to do radix as a guest. */ - if (disable_radix || !(mfmsr() & MSR_HV)) + if (disable_radix) cur_cpu_spec->mmu_features &= ~MMU_FTR_TYPE_RADIX; /*