Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit ff8a4bae authored by H. Peter Anvin's avatar H. Peter Anvin Committed by Ingo Molnar
Browse files

Revert "x86: cap iomem_resource to addressable physical memory" 



This reverts commit 95ee14e4.
Mikael Petterson <mikepe@it.uu.se> reported that at least one of his
systems will not boot as a result.  We have ruled out the detection
algorithm malfunctioning, so it is not a matter of producing the
incorrect bitmasks; rather, something in the application of them
fails.

Revert the commit until we can root cause and correct this problem.

-stable team: this means the underlying commit should be rejected.

Reported-and-isolated-by: default avatarMikael Petterson <mikpe@it.uu.se>
Signed-off-by: default avatarH. Peter Anvin <hpa@zytor.com>
LKML-Reference: <200906261559.n5QFxJH8027336@pilspetsen.it.uu.se>
Cc: stable@kernel.org
Cc: Grant Grundler <grundler@parisc-linux.org>
parent e888d7fa

arch/x86/kernel/cpu/common.c

+0 −3
Original line number Diff line number Diff line
@@ -848,9 +848,6 @@ static void __cpuinit identify_cpu(struct cpuinfo_x86 *c) 
#if defined(CONFIG_NUMA) && defined(CONFIG_X86_64)

	numa_add_cpu(smp_processor_id());

#endif



	/* Cap the iomem address space to what is addressable on all CPUs */

	iomem_resource.end &= (1ULL << c->x86_phys_bits) - 1;

}



#ifdef CONFIG_X86_64