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qemu/hw
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Matthew Rosato 03451953c7 s390x/pci: reset ISM passthrough devices on shutdown and system reset 
ISM device firmware stores unique state information that can
can cause a wholesale unmap of the associated IOMMU (e.g. when
we get a termination signal for QEMU) to trigger firmware errors
because firmware believes we are attempting to invalidate entries
that are still in-use by the guest OS (when in fact that guest is
in the process of being terminated or rebooted).
To alleviate this, register both a shutdown notifier (for unexpected
termination cases e.g. virsh destroy) as well as a reset callback
(for cases like guest OS reboot).  For each of these scenarios, trigger
PCI device reset; this is enough to indicate to firmware that the IOMMU
is no longer in-use by the guest OS, making it safe to invalidate any
associated IOMMU entries.

Fixes: 15d0e7942d ("s390x/pci: don't fence interpreted devices without MSI-X")
Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Message-Id: <20221209195700.263824-1-mjrosato@linux.ibm.com>
Reviewed-by: Eric Farman <farman@linux.ibm.com>
[thuth: Adjusted the hunk in s390-pci-vfio.c due to different context]
Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-12-15 15:02:34 +01:00
..
9pfs cleanup: Tweak and re-run return_directly.cocci 2022-12-14 16:19:35 +01:00
acpi qapi qdev qom: Elide redundant has_FOO in generated C 2022-12-14 20:05:07 +01:00
adc hw/adc: Make adci[*] R/W in NPCM7XX ADC 2022-07-18 13:20:14 +01:00
alpha hw: Remove unused MAX_IDE_BUS define 2022-10-31 11:32:07 +01:00
arm error: Move ERRP_GUARD() to the beginning of the function 2022-12-14 16:19:35 +01:00
audio hw/audio/intel-hda: Drop unnecessary prototype 2022-11-23 12:30:45 +01:00
avr
block hw/virtio: generalise CHR_EVENT_CLOSED handling 2022-12-01 02:30:13 -05:00
char cleanup: Tweak and re-run return_directly.cocci 2022-12-14 16:19:35 +01:00
core Miscellaneous patches for 2022-12-14 2022-12-15 10:13:46 +00:00
cpu
cris
cxl hw/cxl/cdat: CXL CDAT Data Object Exchange implementation 2022-11-07 13:12:19 -05:00
display hw/display/next-fb: Fix comment typo 2022-12-03 22:07:07 +01:00
dma treewide: Remove the unnecessary space before semicolon 2022-10-24 13:41:10 +02:00
gpio hw/gpio/meson: Introduce dedicated config switch for hw/gpio/mpc8xxx 2022-10-17 16:15:09 -03:00
hppa hw: Remove unused MAX_IDE_BUS define 2022-10-31 11:32:07 +01:00
hyperv error: Drop some obviously superfluous error_propagate() 2022-12-14 16:19:35 +01:00
i2c hw/i2c/aspeed: Fix old reg slave receive 2022-10-24 11:20:15 +02:00
i386 qapi: Use returned bool to check for failure (again) 2022-12-14 16:19:35 +01:00
ide hw/ppc/mac.h: Rename to include/hw/nvram/mac_nvram.h 2022-10-31 18:48:23 +00:00
input pckbd: remove legacy i8042_mm_init() function 2022-07-18 19:28:46 +01:00
intc hw/intc: add implementation of GICD_IIDR to Arm GIC 2022-11-21 11:45:13 +00:00
ipack
ipmi ipmi:smbus: Add a check around a memcpy 2022-08-01 06:40:50 -05:00
isa acpi: x86: move RPQx field back to _SB scope 2022-11-22 05:19:00 -05:00
loongarch Revert "hw/loongarch/virt: Add cfi01 pflash device" 2022-12-05 11:24:35 -05:00
m68k m68k/q800: do not re-randomize RNG seed on snapshot load 2022-10-27 11:34:31 +01:00
mem qapi machine: Elide redundant has_FOO in generated C 2022-12-14 20:04:47 +01:00
microblaze hw/microblaze: pass random seed to fdt 2022-09-21 19:59:56 +02:00
mips hw/mips/malta: Use bootloader helper to set BAR registers 2022-10-31 11:32:56 +01:00
misc mac_nvram: Use NVRAM_SIZE constant 2022-10-31 18:48:23 +00:00
net Miscellaneous patches for 2022-12-14 2022-12-15 10:13:46 +00:00
nios2 hw/nios2: set machine->fdt in nios2_load_dtb() 2022-10-17 16:15:10 -03:00
nubus
nvme Drop more useless casts from void * to pointer 2022-12-14 16:19:35 +01:00
nvram qapi machine: Elide redundant has_FOO in generated C 2022-12-14 20:04:47 +01:00
openrisc openrisc: re-randomize rng-seed on reboot 2022-10-27 11:34:31 +01:00
pci Miscellaneous patches for 2022-12-14 2022-12-15 10:13:46 +00:00
pci-bridge hw/pci-bridge/cxl-upstream: Add a CDAT table access DOE 2022-11-07 13:12:19 -05:00
pci-host hw/pci-host/pnv_phb: Avoid quitting QEMU if hotplug of pnv-phb-root-port fails 2022-11-10 18:22:10 -03:00
pcmcia
ppc Miscellaneous patches for 2022-12-14 2022-12-15 10:13:46 +00:00
rdma cleanup: Tweak and re-run return_directly.cocci 2022-12-14 16:19:35 +01:00
remote error: Drop a few superfluous ERRP_GUARD() 2022-12-14 16:19:35 +01:00
riscv riscv: re-randomize rng-seed on reboot 2022-10-27 11:34:31 +01:00
rtc goldfish_rtc: Add big-endian property 2022-09-04 07:02:56 +01:00
rx rx: re-randomize rng-seed on reboot 2022-10-27 11:34:31 +01:00
s390x s390x/pci: reset ISM passthrough devices on shutdown and system reset 2022-12-15 15:02:34 +01:00
scsi vhost: enable vrings in vhost_dev_start() for vhost-user devices 2022-12-01 02:30:04 -05:00
sd hw/sd: Fix sun4i allwinner-sdhost for U-Boot 2022-11-21 11:45:12 +00:00
sensor hw/sensor: Add Renesas ISL69259 device model 2022-07-14 16:24:38 +02:00
sh4
smbios hw/smbios: add core_count2 to smbios table type 4 2022-11-07 14:08:17 -05:00
sparc machine: make memory-backend a link property 2022-05-12 12:29:44 +02:00
sparc64 hw: Remove unused MAX_IDE_BUS define 2022-10-31 11:32:07 +01:00
ssi aspeed/smc: Cache AspeedSMCClass 2022-10-24 11:20:15 +02:00
timer target/imx: reload cmp timer outside of the reload ptimer transaction 2022-10-27 10:27:23 +01:00
tpm tpm_crb: Avoid backend startup just before shutdown under Xen 2022-09-09 17:55:59 -04:00
tricore
usb hw/usb/hcd-xhci: Reset the XHCIState with device_cold_reset() 2022-11-23 12:28:51 +01:00
vfio pci,pc,virtio: features, tests, fixes, cleanups 2022-11-07 18:43:56 -05:00
virtio Miscellaneous patches for 2022-12-14 2022-12-15 10:13:46 +00:00
watchdog watchdog: remove -watchdog option 2022-09-29 11:40:28 +02:00
xen xen/pt: fix syntax error that causes FTBFS in some configurations 2022-11-05 20:35:45 +01:00
xenpv Warn user if the vga flag is passed but no vga device is created 2022-05-09 08:21:14 +02:00
xtensa hw/xtensa: fix reset value of MIROUT register of MX PIC 2022-05-06 15:27:40 -07:00
Kconfig hw/loongarch: Add support loongson3 virt machine type. 2022-06-06 18:09:03 +00:00
meson.build hw/loongarch: Add support loongson3 virt machine type. 2022-06-06 18:09:03 +00:00