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powerpc fixes for 5.8 #4

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A fix for a crash in nested KVM when CONFIG_DEBUG_VIRTUAL=y.
 
 Two minor build fixes.
 
 Thanks to:
   Aneesh Kumar K.V, Arseny Solokha, Harish.
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Merge tag 'powerpc-5.8-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:

 - A fix for a crash in nested KVM when CONFIG_DEBUG_VIRTUAL=y.

 - Two minor build fixes.

Thanks to: Aneesh Kumar K.V, Arseny Solokha, Harish.

* tag 'powerpc-5.8-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  selftests/powerpc: Fix build failure in ebb tests
  powerpc/kvm/book3s64: Fix kernel crash with nested kvm & DEBUG_VIRTUAL
  powerpc/fsl_booke/32: Fix build with CONFIG_RANDOMIZE_BASE
This commit is contained in:
Linus Torvalds 2020-06-27 08:51:35 -07:00
parent 3b6ab1012c 896066aa06
commit 21d2f6850c
3 changed files with 4 additions and 2 deletions
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3
arch/powerpc/kvm/book3s_64_mmu_radix.c
View file

@ -40,7 +40,8 @@ unsigned long __kvmhv_copy_tofrom_guest_radix(int lpid, int pid,
/* Can't access quadrants 1 or 2 in non-HV mode, call the HV to do it */
if (kvmhv_on_pseries())
return plpar_hcall_norets(H_COPY_TOFROM_GUEST, lpid, pid, eaddr,
__pa(to), __pa(from), n);
(to != NULL) ? __pa(to): 0,
(from != NULL) ? __pa(from): 0, n);
quadrant = 1;
if (!pid)

1
arch/powerpc/mm/nohash/kaslr_booke.c
View file

@ -14,6 +14,7 @@
#include <linux/memblock.h>
#include <linux/libfdt.h>
#include <linux/crash_core.h>
#include <asm/cacheflush.h>
#include <asm/pgalloc.h>
#include <asm/prom.h>
#include <asm/kdump.h>

2
tools/testing/selftests/powerpc/pmu/ebb/Makefile
View file

@ -7,7 +7,7 @@ noarg:
# The EBB handler is 64-bit code and everything links against it
CFLAGS += -m64
TMPOUT = $(OUTPUT)/
TMPOUT = $(OUTPUT)/TMPDIR/
# Toolchains may build PIE by default which breaks the assembly
no-pie-option := $(call try-run, echo 'int main() { return 0; }' | \
$(CC) -Werror $(KBUILD_CPPFLAGS) $(CC_OPTION_CFLAGS) -no-pie -x c - -o "$$TMP", -no-pie)