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Tom Lendacky 05d227efbd iommu/amd: Do not clear event/ppr log buffer when snp is enabled 
Current code clears event log and ppr log entry after processing it due
to hardware errata ([1]  erratum #732, #733). We do not have hardware
issue on SNP enabled system.

When SNP is enabled, the event logs, PPR log and completion wait buffer
are read-only to the host (see SNP FW ABI spec [2]). Clearing those entry
will result in a kernel #PF for an RMP violation. Hence do not clear
event and ppr log entry after processing it.

[1] http://developer.amd.com/wordpress/media/2012/10/48931_15h_Mod_10h-1Fh_Rev_Guide.pdf
[2] https://www.amd.com/system/files/TechDocs/56860.pdf

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Reviewed-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Link: https://lore.kernel.org/r/20230117044038.5728-1-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2023-01-20 10:41:57 +01:00
..
accel
Fix mismerge due to devnode now taking a 'const *' device
2022-12-16 13:04:15 -06:00
accessibility
…
acpi
ACPI fixes for 6.2-rc2
2022-12-30 10:47:25 -08:00
amba
ARM updates for 6.2
2022-12-13 15:22:14 -08:00
android
…
ata
ata: ahci: Fix PCS quirk application for suspend
2022-12-27 11:06:57 +09:00
atm
treewide: Convert del_timer*() to timer_shutdown*()
2022-12-25 13:38:09 -08:00
auxdisplay
…
base
Kbuild updates for v6.2
2022-12-19 12:33:32 -06:00
bcma
…
block
block-2023-01-06
2023-01-06 13:12:42 -08:00
bluetooth
treewide: Convert del_timer*() to timer_shutdown*()
2022-12-25 13:38:09 -08:00
bus
Char/Misc driver changes for 6.2-rc1
2022-12-16 03:49:24 -08:00
cdrom
…
char
tpm: Allow system suspend to continue when TPM suspend fails
2023-01-06 14:25:19 -08:00
clk
A pile of clk driver updates with a small tracepoint patch to the clk core this
2022-12-13 13:46:07 -08:00
clocksource
Updates for timers, timekeeping and drivers:
2022-12-12 12:52:02 -08:00
comedi
…
connector
…
counter
…
cpufreq
linux-kselftest-next-6.2-rc1
2022-12-12 16:39:38 -08:00
cpuidle
powerpc updates for 6.2
2022-12-19 07:13:33 -06:00
crypto
This push fixes a CFI crash in arm64/sm4 as well as a regression
2023-01-06 11:14:11 -08:00
cxl
cxl/region: Fix memdev reuse check
2022-12-08 13:03:47 -08:00
dax
…
dca
…
devfreq
PM / devfreq: event: use devm_platform_get_and_ioremap_resource()
2022-12-05 21:57:20 +09:00
dio
…
dma
dmaengine updates for v6.2
2022-12-19 08:54:17 -06:00
dma-buf
Merge drm/drm-fixes into drm-misc-fixes
2023-01-03 08:32:12 +01:00
edac
Merge branches 'edac-ghes' and 'edac-misc' into edac-updates-for-v6.2
2022-12-12 15:40:03 +01:00
eisa
…
extcon
Char/Misc driver changes for 6.2-rc1
2022-12-16 03:49:24 -08:00
firewire
…
firmware
remoteproc updates for v6.2
2022-12-21 09:37:14 -08:00
fpga
Char/Misc driver changes for 6.2-rc1
2022-12-16 03:49:24 -08:00
fsi
…
gnss
…
gpio
gpio: sifive: Fix refcount leak in sifive_gpio_probe
2023-01-02 13:01:14 +01:00
gpu
Only gvt-fixes:
2023-01-06 10:16:49 +01:00
greybus
…
hid
treewide: Convert del_timer*() to timer_shutdown*()
2022-12-25 13:38:09 -08:00
hsi
…
hte
…
hv
Networking changes for 6.2.
2022-12-13 15:47:48 -08:00
hwmon
hwmon updates for v6.2 merge window
2022-12-13 13:09:38 -08:00
hwspinlock
…
hwtracing
…
i2c
Core got a new helper 'i2c_client_get_device_id', designware got some
2022-12-15 14:47:10 -08:00
i3c
i3c: export SETDASA method
2022-12-11 21:25:58 +01:00
idle
…
iio
Char/Misc driver changes for 6.2-rc1
2022-12-16 03:49:24 -08:00
infiniband
RDMA/mlx5: Fix validation of max_rd_atomic caps for DC
2023-01-01 09:40:35 +02:00
input
treewide: Convert del_timer*() to timer_shutdown*()
2022-12-25 13:38:09 -08:00
interconnect
…
iommu
iommu/amd: Do not clear event/ppr log buffer when snp is enabled
2023-01-20 10:41:57 +01:00
ipack
…
irqchip
RISC-V Patches for the 6.2 Merge Window, Part 1
2022-12-14 15:23:49 -08:00
isdn
treewide: Convert del_timer*() to timer_shutdown*()
2022-12-25 13:38:09 -08:00
leds
treewide: Convert del_timer*() to timer_shutdown*()
2022-12-25 13:38:09 -08:00
macintosh
…
mailbox
- qcom: enable sc8280xp, sm8550 and sm4250 support
2022-12-21 09:31:18 -08:00
mcb
…
md
block: handle bio_split_to_limits() NULL return
2023-01-04 09:05:23 -07:00
media
treewide: Convert del_timer*() to timer_shutdown*()
2022-12-25 13:38:09 -08:00
memory
ARM updates for 6.2
2022-12-13 15:22:14 -08:00
memstick
memstick/mspro_block: Convert to use sysfs_emit()/sysfs_emit_at() APIs
2022-12-09 10:29:58 +01:00
message
…
mfd
- New Drivers
2022-12-21 09:19:24 -08:00
misc
kernel hardening fixes for v6.2-rc1
2022-12-23 12:00:24 -08:00
mmc
MMC core:
2022-12-13 13:41:26 -08:00
most
…
mtd
MTD core changes:
2022-12-13 12:32:07 -08:00
mux
…
net
Including fixes from bpf, wifi, and netfilter.
2023-01-05 12:40:50 -08:00
nfc
treewide: Convert del_timer*() to timer_shutdown*()
2022-12-25 13:38:09 -08:00
ntb
…
nubus
…
nvdimm
…
nvme
block-2023-01-06
2023-01-06 13:12:42 -08:00
nvmem
Char/Misc driver changes for 6.2-rc1
2022-12-16 03:49:24 -08:00
of
of: fdt: Honor CONFIG_CMDLINE* even without /chosen node, take 2
2023-01-04 21:31:59 -06:00
opp
…
parisc
parisc: led: Fix potential null-ptr-deref in start_task()
2022-12-17 23:19:38 +01:00
parport
…
pci
phy-for-6.2
2022-12-19 08:40:58 -06:00
pcmcia
treewide: Convert del_timer*() to timer_shutdown*()
2022-12-25 13:38:09 -08:00
peci
…
perf
RISC-V Patches for the 6.2 Merge Window, Part 1
2022-12-14 15:23:49 -08:00
phy
phy-for-6.2
2022-12-19 08:40:58 -06:00
pinctrl
Pin control changes for the v6.2 kernel cycle:
2022-12-13 13:03:06 -08:00
platform
USB/Thunderbolt driver changes for 6.2-rc1
2022-12-16 03:22:53 -08:00
pnp
…
power
power supply and reset changes for the v6.2 series
2022-12-17 08:39:31 -06:00
powercap
…
pps
…
ps3
…
ptp
Networking changes for 6.2.
2022-12-13 15:47:48 -08:00
pwm
pwm: Changes for v6.2-rc1
2022-12-21 09:41:28 -08:00
rapidio
rapidio: devices: fix missing put_device in mport_cdev_open
2022-12-11 19:30:20 -08:00
ras
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regulator
regulator: Fixes for v6.2
2022-12-23 14:38:00 -08:00
remoteproc
remoteproc: core: Do pm_relax when in RPROC_OFFLINE state
2022-12-07 11:20:55 -07:00
reset
…
rpmsg
…
rtc
- New Drivers
2022-12-21 09:19:24 -08:00
s390
block-2023-01-06
2023-01-06 13:12:42 -08:00
sbus
…
scsi
treewide: Convert del_timer*() to timer_shutdown*()
2022-12-25 13:38:09 -08:00
sh
…
siox
…
slimbus
…
soc
ARM: SoC fixes for 6.2
2022-12-19 16:07:59 -06:00
soundwire
soundwire updates for 6.2
2022-12-19 08:47:33 -06:00
spi
spi: Fix for v6.2
2022-12-23 14:44:08 -08:00
spmi
…
ssb
…
staging
treewide: Convert del_timer*() to timer_shutdown*()
2022-12-25 13:38:09 -08:00
target
SCSI misc on 20221213
2022-12-14 08:58:51 -08:00
tc
…
tee
SoC driver updates for 6.2
2022-12-12 10:17:08 -08:00
thermal
thermal: int340x: Add missing attribute for data rate base
2022-12-30 19:48:37 +01:00
thunderbolt
…
tty
treewide: Convert del_timer*() to timer_shutdown*()
2022-12-25 13:38:09 -08:00
ufs
SCSI misc on 20221213
2022-12-14 08:58:51 -08:00
uio
…
usb
usb: dwc3: gadget: Ignore End Transfer delay on teardown
2023-01-06 16:32:10 +01:00
vdpa
vdpa_sim_net: should not drop the multicast/broadcast packet
2022-12-28 05:28:11 -05:00
vfio
Driver Core changes for 6.2-rc1
2022-12-16 03:54:54 -08:00
vhost
vhost_vdpa: fix the crash in unmap a large memory
2022-12-28 05:28:11 -05:00
video
fbdev: omapfb: avoid stack overflow warning
2023-01-05 11:43:27 +01:00
virt
Char/Misc driver changes for 6.2-rc1
2022-12-16 03:49:24 -08:00
virtio
virtio: Implementing attribute show with sysfs_emit
2022-12-28 05:28:11 -05:00
vlynq
…
w1
…
watchdog
linux-watchdog 6.2-rc1 tag
2022-12-17 08:34:01 -06:00
xen
drm for 6.2:
2022-12-13 11:59:58 -08:00
zorro
…
Kconfig
…
Makefile
…