Olaf Hering 9a709f06c8 piix: fix xenfv regression, add compat machine xenfv-4.2 ... With QEMU 4.0 an incompatible change was added to pc_piix, which makes it practical impossible to migrate domUs started with qemu2 or qemu3 to newer qemu versions. Commit 7fccf2a068 added and enabled a new member "smbus_no_migration_support". In commit 4ab2f2a8aa the vmstate_acpi got new elements, which are conditionally filled. As a result, an incoming migration expected smbus related data unless smbus migration was disabled for a given MachineClass. Since first commit forgot to handle 'xenfv', domUs started with QEMU 4.x are incompatible with their QEMU siblings. Using other existing machine types, such as 'pc-i440fx-3.1', is not possible because 'xenfv' creates the 'xen-platform' PCI device at 00:02.0, while all other variants to run a domU would create it at 00:04.0. To cover both the existing and the broken case of 'xenfv' in a single qemu binary, a new compatibility variant of 'xenfv-4.2' must be added which targets domUs started with qemu 4.2. The existing 'xenfv' restores compatibility of QEMU 5.x with qemu 3.1. Host admins who started domUs with QEMU 4.x (preferrable QEMU 4.2) have to use a wrapper script which appends '-machine xenfv-4.2' to the device-model command line. This is only required if there is no maintenance window which allows to temporary shutdown the domU and restart it with a fixed device-model. The wrapper script is as simple as this: #!/bin/sh exec /usr/bin/qemu-system-i386 "$@" -machine xenfv-4.2 With xl this script will be enabled with device_model_override=, see xl.cfg(5). To live migrate a domU, adjust the existing domU.cfg and pass it to xl migrate or xl save/restore: xl migrate -C new-domU.cfg domU remote-host xl save domU CheckpointFile new-domU.cfg xl restore new-domU.cfg CheckpointFile With libvirt this script will be enabled with the <emulator> element in domU.xml. Use 'virsh edit' prior 'virsh migrate' to replace the existing <emulator> element to point it to the wrapper script. Signed-off-by: Olaf Hering <olaf@aepfle.de> Message-Id: <20200327151841.13877-1-olaf@aepfle.de> [Adjust tests for blacklisted machine types, simplifying the one in qom-test. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2020-04-11 08:49:11 -04:00
..
fuzz	Use &error_abort instead of separate assert()	2020-03-17 16:05:40 +01:00
libqos	ppc patch queue 2020-03-17	2020-03-18 15:07:57 +00:00
ac97-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
acpi-utils.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
acpi-utils.h	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
ahci-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
arm-cpu-features.c	target/arm/cpu: Add the kvm-no-adjvtime CPU property	2020-01-30 16:02:06 +00:00
bios-tables-test-allowed-diff.h	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
bios-tables-test.c	bios-tables-test: default diff command	2020-02-25 08:23:18 -05:00
boot-order-test.c	boot-order-test: fix memleaks in boot-order-test	2020-02-04 09:00:57 +01:00
boot-sector.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
boot-sector.h	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
boot-serial-test.c	tests: Silence various warnings with pseries	2020-02-03 11:33:11 +11:00
cdrom-test.c	hw/ppc/prep: Remove the deprecated "prep" machine and the OpenHackware BIOS	2020-02-02 14:07:57 +11:00
cpu-plug-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
dbus-vmstate1.xml	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
dbus-vmstate-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
device-introspect-test.c	piix: fix xenfv regression, add compat machine xenfv-4.2	2020-04-11 08:49:11 -04:00
device-plug-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
display-vga-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
drive_del-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
ds1338-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
e1000-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
e1000e-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
eepro100-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
endianness-test.c	hw/ppc/prep: Remove the deprecated "prep" machine and the OpenHackware BIOS	2020-02-02 14:07:57 +11:00
es1370-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
fdc-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
fw_cfg-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
hd-geo-test.c	hd-geo-test: Clean up use of buf[] in create_qcow2_with_mbr()	2020-03-17 10:23:14 -04:00
hexloader-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
i440fx-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
i82801b11-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
ide-test.c	tests/ide-test: Create a single unit-test covering more PRDT cases	2020-01-27 17:07:31 -05:00
intel-hda-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
ioh3420-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
ipmi-bt-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
ipmi-kcs-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
ipoctal232-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
ivshmem-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
libqtest-single.h	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
libqtest.c	libqtest: make bufwrite rely on the TransportOps	2020-02-22 08:26:47 +00:00
libqtest.h	libqtest: make bufwrite rely on the TransportOps	2020-02-22 08:26:47 +00:00
m25p80-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
m48t59-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
machine-none-test.c	Add rx-softmmu	2020-03-19 17:58:05 +01:00
Makefile.include	qtest: add tulip test case	2020-03-31 21:14:35 +08:00
megasas-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
microbit-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
migration-helpers.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
migration-helpers.h	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
migration-test.c	tests/migration: Reduce autoconverge initial bandwidth	2020-03-25 12:31:38 +00:00
modules-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
ne2000-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
numa-test.c	tests:numa-test: use explicit memdev to specify node RAM	2020-02-19 16:50:02 +00:00
nvme-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
pca9552-test.c	libqos: rename i2c_send and i2c_recv	2020-02-22 08:26:48 +00:00
pci-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
pcnet-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
pflash-cfi02-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
pnv-xscom-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
prom-env-test.c	tests: Silence various warnings with pseries	2020-02-03 11:33:11 +11:00
pvpanic-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
pxe-test.c	tests: Silence various warnings with pseries	2020-02-03 11:33:11 +11:00
q35-test.c	tests: q35: MCH: add default SMBASE SMRAM lock test	2020-01-22 00:23:07 -05:00
qmp-cmd-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
qmp-test.c	qapi: Split control.json off misc.json	2020-02-17 13:53:47 +01:00
qom-test.c	piix: fix xenfv regression, add compat machine xenfv-4.2	2020-04-11 08:49:11 -04:00
qos-test.c	libqos: move useful qos-test funcs to qos_external	2020-02-22 08:26:48 +00:00
rtas-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
rtc-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
rtl8139-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
sdhci-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
spapr-phb-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
tco-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
test-arm-mptimer.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
test-filter-mirror.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
test-filter-redirector.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
test-hmp.c	piix: fix xenfv regression, add compat machine xenfv-4.2	2020-04-11 08:49:11 -04:00
test-netfilter.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
test-x86-cpuid-compat.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
tmp105-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
tpm-crb-swtpm-test.c	test: tpm-tis: Get prepared to share tests between ISA and sysbus devices	2020-03-05 12:18:39 -05:00
tpm-crb-test.c	test: tpm-tis: Get prepared to share tests between ISA and sysbus devices	2020-03-05 12:18:39 -05:00
tpm-emu.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
tpm-emu.h	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
tpm-tests.c	test: tpm: pass optional machine options to swtpm test functions	2020-03-05 12:18:33 -05:00
tpm-tests.h	test: tpm: pass optional machine options to swtpm test functions	2020-03-05 12:18:33 -05:00
tpm-tis-device-swtpm-test.c	test: tpm-tis: Add Sysbus TPM-TIS device test	2020-03-05 12:18:47 -05:00
tpm-tis-device-test.c	test: tpm-tis: Add Sysbus TPM-TIS device test	2020-03-05 12:18:47 -05:00
tpm-tis-swtpm-test.c	test: tpm-tis: Get prepared to share tests between ISA and sysbus devices	2020-03-05 12:18:39 -05:00
tpm-tis-test.c	test: tpm-tis: Get prepared to share tests between ISA and sysbus devices	2020-03-05 12:18:39 -05:00
tpm-tis-util.c	test: tpm-tis: Get prepared to share tests between ISA and sysbus devices	2020-03-05 12:18:39 -05:00
tpm-tis-util.h	test: tpm-tis: Get prepared to share tests between ISA and sysbus devices	2020-03-05 12:18:39 -05:00
tpm-util.c	test: tpm-tis: Get prepared to share tests between ISA and sysbus devices	2020-03-05 12:18:39 -05:00
tpm-util.h	test: tpm-tis: Get prepared to share tests between ISA and sysbus devices	2020-03-05 12:18:39 -05:00
tulip-test.c	qtest: add tulip test case	2020-03-31 21:14:35 +08:00
usb-hcd-ehci-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
usb-hcd-ohci-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
usb-hcd-uhci-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
usb-hcd-xhci-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
vhost-user-test.c	tests/qtest/vhost-user-test: Fix memory leaks	2020-01-16 17:01:25 +01:00
virtio-9p-test.c	tests/virtio-9p: added readdir test	2020-02-08 09:29:04 +01:00
virtio-blk-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
virtio-ccw-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
virtio-net-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
virtio-rng-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
virtio-scsi-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
virtio-serial-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
virtio-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
vmgenid-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
vmxnet3-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00
wdt_ib700-test.c	test: Move qtests to a separate directory	2020-01-12 11:42:41 +01:00