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a8282bf087
linux/arch/powerpc/platforms/powermac
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Linus Torvalds a8282bf087 powerpc fixes for 5.2 #5 
Seven fixes, all for bugs introduced this cycle.
 
 The commit to add KASAN support broke booting on 32-bit SMP machines, due to a
 refactoring that moved some setup out of the secondary CPU path.
 
 A fix for another 32-bit SMP bug introduced by the fast syscall entry
 implementation for 32-bit BOOKE. And a build fix for the same commit.
 
 Our change to allow the DAWR to be force enabled on Power9 introduced a bug in
 KVM, where we clobber r3 leading to a host crash.
 
 The same commit also exposed a previously unreachable bug in the nested KVM
 handling of DAWR, which could lead to an oops in a nested host.
 
 One of the DMA reworks broke the b43legacy WiFi driver on some people's
 powermacs, fix it by enabling a 30-bit ZONE_DMA on 32-bit.
 
 A fix for TLB flushing in KVM introduced a new bug, as it neglected to also
 flush the ERAT, this could lead to memory corruption in the guest.
 
 Thanks to:
   Aaro Koskinen, Christoph Hellwig, Christophe Leroy, Larry Finger, Michael
   Neuling, Suraj Jitindar Singh.
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Merge tag 'powerpc-5.2-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:
 "This is a frustratingly large batch at rc5. Some of these were sent
  earlier but were missed by me due to being distracted by other things,
  and some took a while to track down due to needing manual bisection on
  old hardware. But still we clearly need to improve our testing of KVM,
  and of 32-bit, so that we catch these earlier.

  Summary: seven fixes, all for bugs introduced this cycle.

   - The commit to add KASAN support broke booting on 32-bit SMP
     machines, due to a refactoring that moved some setup out of the
     secondary CPU path.

   - A fix for another 32-bit SMP bug introduced by the fast syscall
     entry implementation for 32-bit BOOKE. And a build fix for the same
     commit.

   - Our change to allow the DAWR to be force enabled on Power9
     introduced a bug in KVM, where we clobber r3 leading to a host
     crash.

   - The same commit also exposed a previously unreachable bug in the
     nested KVM handling of DAWR, which could lead to an oops in a
     nested host.

   - One of the DMA reworks broke the b43legacy WiFi driver on some
     people's powermacs, fix it by enabling a 30-bit ZONE_DMA on 32-bit.

   - A fix for TLB flushing in KVM introduced a new bug, as it neglected
     to also flush the ERAT, this could lead to memory corruption in the
     guest.

  Thanks to: Aaro Koskinen, Christoph Hellwig, Christophe Leroy, Larry
  Finger, Michael Neuling, Suraj Jitindar Singh"

* tag 'powerpc-5.2-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  KVM: PPC: Book3S HV: Invalidate ERAT when flushing guest TLB entries
  powerpc: enable a 30-bit ZONE_DMA for 32-bit pmac
  KVM: PPC: Book3S HV: Only write DAWR[X] when handling h_set_dawr in real mode
  KVM: PPC: Book3S HV: Fix r3 corruption in h_set_dabr()
  powerpc/32: fix build failure on book3e with KVM
  powerpc/booke: fix fast syscall entry on SMP
  powerpc/32s: fix initial setup of segment registers on secondary CPU
2019-06-22 09:09:42 -07:00
..
backlight.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
bootx_init.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
cache.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
feature.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
Kconfig powerpc: enable a 30-bit ZONE_DMA for 32-bit pmac 2019-06-19 22:31:20 +10:00
low_i2c.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
Makefile powerpc: disable KASAN instrumentation on early/critical files. 2019-05-03 01:20:26 +10:00
nvram.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
pci.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
pfunc_base.c powerpc: Use of_node_name_eq for node name comparisons 2018-12-22 21:29:50 +11:00
pfunc_core.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
pic.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
pmac.h powerpc: use time64_t in read_persistent_clock 2018-06-03 20:43:33 +10:00
setup.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
sleep.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
smp.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
time.c powerpc: Adopt nvram module for PPC64 2019-01-22 10:21:45 +01:00
udbg_adb.c powerpc: Use device_type helpers to access the node type 2018-11-26 22:33:37 +11:00
udbg_scc.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00