powerpc fixes for 5.8 #4

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.
 -----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCAAxFiEEJFGtCPCthwEv2Y/bUevqPMjhpYAFAl73L58THG1wZUBlbGxl
 cm1hbi5pZC5hdQAKCRBR6+o8yOGlgFHvD/9InTRjjJ8VPoZri5d4UNP1xPcAMF6P
 u9KppOVJDHaRgI58xtWgfH3eXVg90OY/u6nVAfaXIlrhH5BCEnx/+gRRoQXBR8vE
 MkoGevVCo6/2FpzAQHAQpaz5BrqipMA0EGBrUvK4+doWJf+lCcuTu4pXCawlbjr+
 Hbc4NChEuqLYkEnWidQL+MxAoJH9Z1HiXmilWRj+8rG0HnMMH6oqDurxUhGmA6/I
 1LHarXkPeWoxx1UQLMN5kDsTLdxCLmz9oqG5EON2vQjob7Zu8sv4WvEZjx7qibHy
 yEe1YUO7xqv6OatGyWvF6FXq6H4udK1djlvFz4FBjOg6YPusrmSIDT5JLth3Q9Fi
 P8Z1DsiHAljgq3bfwIFdFQRG35JAzV1LmEI89z6VADGPPZuIwUCoagnfnQUBaPfg
 VTlnYJlUEmCDAH6R/OSUIOpVqmblCukeSIObvigcsyamPrAZZKl0PPw3ns+Uzykw
 WJ1ukCyppscPwZ00+hByUXOmX6ZBMHoFakgpd3b09RUHiMbrjvpgaUFEwqSl1AsA
 yJ83uqaywqjewKH0uMwqRtw7j/BfXa47hYYqNeBcxqu9h5ORMchAIB4rgbO2LDgr
 ZsvhiSlBqEL8j5HnzVYEaFPniE6NWesx1JJLOD41fWN+Fa9SFzkVfZy6rQyhOLU8
 rjQQ+iJJVFreqw==
 =TvGN
 -----END PGP SIGNATURE-----

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
commit 21d2f6850c
3 changed files with 4 additions and 2 deletions

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)

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>

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)