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Juergen Gross 216ca8fe89 x86/xen: disable Firmware First mode for correctable memory errors 
commit d759af38572f97321112a0852353613d18126038 upstream.

When running as Xen dom0 the kernel isn't responsible for selecting the
error handling mode, this should be handled by the hypervisor.

So disable setting FF mode when running as Xen pv guest. Not doing so
might result in boot splats like:

[    7.509696] HEST: Enabling Firmware First mode for corrected errors.
[    7.510382] mce: [Firmware Bug]: Ignoring request to disable invalid MCA bank 2.
[    7.510383] mce: [Firmware Bug]: Ignoring request to disable invalid MCA bank 3.
[    7.510384] mce: [Firmware Bug]: Ignoring request to disable invalid MCA bank 4.
[    7.510384] mce: [Firmware Bug]: Ignoring request to disable invalid MCA bank 5.
[    7.510385] mce: [Firmware Bug]: Ignoring request to disable invalid MCA bank 6.
[    7.510386] mce: [Firmware Bug]: Ignoring request to disable invalid MCA bank 7.
[    7.510386] mce: [Firmware Bug]: Ignoring request to disable invalid MCA bank 8.

Reason is that the HEST ACPI table contains the real number of MCA
banks, while the hypervisor is emulating only 2 banks for guests.

Cc: stable@vger.kernel.org
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/20200925140751.31381-1-jgross@suse.com
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2021-03-16 16:39:33 +08:00
..
alpha alpha: fix annotation of io{read,write}{16,32}be() 2021-03-16 16:34:34 +08:00
arc arc: plat-hsdk: fix kconfig dependency warning when !RESET_CONTROLLER 2021-03-16 16:38:50 +08:00
arm ARM: dts: meson8: remove two invalid interrupt lines from the GPU node 2021-03-16 16:39:09 +08:00
arm64 arm64: link with -z norelro regardless of CONFIG_RELOCATABLE 2021-03-16 16:39:28 +08:00
c6x Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
csky csky: Fixup abiv2 syscall_trace break a4 & a5 2021-03-16 16:28:56 +08:00
h8300 Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
hexagon hexagon: define ioremap_uc 2021-03-16 16:27:29 +08:00
ia64 mm: replace memmap_context by meminit_context 2021-03-16 16:37:50 +08:00
m68k m68k: q40: Fix info-leak in rtc_ioctl 2021-03-16 16:36:33 +08:00
microblaze Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
mips MIPS: Add the missing 'CPU_1074K' into __get_cpu_type() 2021-03-16 16:37:36 +08:00
nds32 Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
nios2 Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
openrisc openrisc: Fix cache API compile issue when not inlining 2021-03-16 16:36:13 +08:00
parisc kbuild: fix broken builds because of GZIP,BZIP2,LZOP variables 2021-03-16 16:35:20 +08:00
powerpc powerpc/pseries: Avoid using addr_to_pfn in real mode 2021-03-16 16:39:10 +08:00
riscv RISC-V: Take text_mutex in ftrace_init_nop() 2021-03-16 16:37:30 +08:00
s390 mm/gup: fix gup_fast with dynamic page table folding 2021-03-16 16:37:40 +08:00
sh sh: landisk: Add missing initialization of sh_io_port_base 2021-03-16 16:34:22 +08:00
sparc scsi: sr: remove references to BLK_DEV_SR_VENDOR, leave it enabled 2021-03-16 16:31:54 +08:00
um um: ensure `make ARCH=um mrproper` removes arch/$(SUBARCH)/include/generated/ 2021-03-16 16:27:11 +08:00
unicore32 Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
x86 x86/xen: disable Firmware First mode for correctable memory errors 2021-03-16 16:39:33 +08:00
xtensa xtensa: fix system_call interaction with ptrace 2021-03-16 16:36:42 +08:00
.gitignore Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
Kconfig Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00