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qemu: Retire 'ivshmem' device

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The device was removed in qemu-4.0 and is superseded by 'ivshmem-plain'
and 'ivshmem-doorbell'.

Always report error when the old version is used and drop the irrelevant
tests.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Peter Krempa 2023-08-16 13:07:34 +02:00
parent b76e4d53c6
commit dc7ca40a13
10 changed files with 5 additions and 241 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

40
src/qemu/qemu_command.c
View File

@ -8873,44 +8873,6 @@ qemuBuildSmartcardCommandLine(virCommand *cmd,
}
static virJSONValue *
qemuBuildShmemDevLegacyProps(virDomainDef *def,
virDomainShmemDef *shmem)
{
g_autoptr(virJSONValue) props = NULL;
g_autofree char *size = NULL;
const char *shm = NULL;
g_autofree char *chardev = NULL;
/* while this would result in a type error with newer qemus, the 'ivshmem'
* device was removed in qemu-4.0, so for the sake of not changing the
* commandline we do this hack */
size = g_strdup_printf("%llum", shmem->size >> 20);
if (shmem->server.enabled)
chardev = g_strdup_printf("char%s", shmem->info.alias);
else
shm = shmem->name;
if (virJSONValueObjectAdd(&props,
"s:driver", "ivshmem",
"s:id", shmem->info.alias,
"s:size", size,
"S:shm", shm,
"S:chardev", chardev,
"B:msi", shmem->msi.enabled,
"p:vectors", shmem->msi.vectors,
"T:ioeventfd", shmem->msi.ioeventfd,
NULL) < 0)
return NULL;
if (qemuBuildDeviceAddressProps(props, def, &shmem->info) < 0)
return NULL;
return g_steal_pointer(&props);
}
virJSONValue *
qemuBuildShmemDevProps(virDomainDef *def,
virDomainShmemDef *shmem)
@ -9014,7 +8976,7 @@ qemuBuildShmemCommandLine(virCommand *cmd,
switch (shmem->model) {
case VIR_DOMAIN_SHMEM_MODEL_IVSHMEM:
devProps = qemuBuildShmemDevLegacyProps(def, shmem);
/* unreachable, rejected by validation */
break;
case VIR_DOMAIN_SHMEM_MODEL_IVSHMEM_PLAIN:

14
src/qemu/qemu_hotplug.c
View File

@ -2817,19 +2817,7 @@ qemuDomainAttachShmemDevice(virDomainObj *vm,
qemuDomainObjPrivate *priv = vm->privateData;
virDomainDeviceDef dev = { VIR_DOMAIN_DEVICE_SHMEM, { .shmem = shmem } };
switch (shmem->model) {
case VIR_DOMAIN_SHMEM_MODEL_IVSHMEM_PLAIN:
case VIR_DOMAIN_SHMEM_MODEL_IVSHMEM_DOORBELL:
break;
case VIR_DOMAIN_SHMEM_MODEL_IVSHMEM:
virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
_("live attach of shmem model '%1$s' is not supported"),
virDomainShmemModelTypeToString(shmem->model));
G_GNUC_FALLTHROUGH;
case VIR_DOMAIN_SHMEM_MODEL_LAST:
return -1;
}
/* validation ensures that the legacy 'ivshmem' device is rejected */
qemuAssignDeviceShmemAlias(vm->def, shmem, -1);

5
src/qemu/qemu_migration.c
View File

@ -1503,11 +1503,6 @@ qemuMigrationSrcIsAllowed(virDomainObj *vm,
for (i = 0; i < vm->def->nshmems; i++) {
virDomainShmemDef *shmem = vm->def->shmems[i];
if (shmem->model == VIR_DOMAIN_SHMEM_MODEL_IVSHMEM) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("migration with legacy shmem device is not supported"));
return false;
}
if (shmem->role != VIR_DOMAIN_SHMEM_ROLE_MASTER) {
virReportError(VIR_ERR_OPERATION_INVALID,
_("shmem device '%1$s' cannot be migrated, only shmem with role='%2$s' can be migrated"),

6
src/qemu/qemu_validate.c
View File

@ -5103,13 +5103,9 @@ qemuValidateDomainDeviceDefShmem(virDomainShmemDef *shmem,
{
switch (shmem->model) {
case VIR_DOMAIN_SHMEM_MODEL_IVSHMEM:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_IVSHMEM)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("ivshmem device is not supported "
"with this QEMU binary"));
_("ivshmem device is no longer supported"));
return -1;
}
break;
case VIR_DOMAIN_SHMEM_MODEL_IVSHMEM_PLAIN:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_IVSHMEM_PLAIN)) {

43
tests/qemuxml2argvdata/shmem.args
View File

@ -1,43 +0,0 @@
LC_ALL=C \
PATH=/bin \
HOME=/var/lib/libvirt/qemu/domain--1-QEMUGuest1 \
USER=test \
LOGNAME=test \
XDG_DATA_HOME=/var/lib/libvirt/qemu/domain--1-QEMUGuest1/.local/share \
XDG_CACHE_HOME=/var/lib/libvirt/qemu/domain--1-QEMUGuest1/.cache \
XDG_CONFIG_HOME=/var/lib/libvirt/qemu/domain--1-QEMUGuest1/.config \
/usr/bin/qemu-system-x86_64 \
-name guest=QEMUGuest1,debug-threads=on \
-S \
-object secret,id=masterKey0,format=raw,file=/var/lib/libvirt/qemu/domain--1-QEMUGuest1/master-key.aes \
-machine pc,usb=off,dump-guest-core=off \
-accel tcg \
-m size=219136k \
-overcommit mem-lock=off \
-smp 1,sockets=1,cores=1,threads=1 \
-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \
-display none \
-no-user-config \
-nodefaults \
-chardev socket,id=charmonitor,fd=1729,server=on,wait=off \
-mon chardev=charmonitor,id=monitor,mode=control \
-rtc base=utc \
-no-shutdown \
-no-acpi \
-boot strict=on \
-usb \
-audiodev '{"id":"audio1","driver":"none"}' \
-device ivshmem,id=shmem0,size=4m,shm=shmem0,bus=pci.0,addr=0x2 \
-device ivshmem,id=shmem1,size=128m,shm=shmem1,bus=pci.0,addr=0x3 \
-device ivshmem,id=shmem2,size=256m,shm=shmem2,bus=pci.0,addr=0x4 \
-device ivshmem,id=shmem3,size=512m,chardev=charshmem3,bus=pci.0,addr=0x5 \
-chardev socket,id=charshmem3,path=/var/lib/libvirt/shmem-shmem3-sock \
-device ivshmem,id=shmem4,size=1024m,chardev=charshmem4,bus=pci.0,addr=0x6 \
-chardev socket,id=charshmem4,path=/tmp/shmem4-sock \
-device ivshmem,id=shmem5,size=2048m,chardev=charshmem5,msi=on,ioeventfd=off,bus=pci.0,addr=0x7 \
-chardev socket,id=charshmem5,path=/tmp/shmem5-sock \
-device ivshmem,id=shmem6,size=4096m,chardev=charshmem6,msi=on,vectors=16,bus=pci.0,addr=0x8 \
-chardev socket,id=charshmem6,path=/tmp/shmem6-sock \
-device ivshmem,id=shmem7,size=8192m,chardev=charshmem7,msi=on,vectors=32,ioeventfd=on,bus=pci.0,addr=0x9 \
-chardev socket,id=charshmem7,path=/tmp/shmem7-sock \
-msg timestamp=on

1
tests/qemuxml2argvdata/shmem.err
View File

@ -1 +0,0 @@
unsupported configuration: ivshmem device is not supported with this QEMU binary

56
tests/qemuxml2argvdata/shmem.xml
View File

@ -1,56 +0,0 @@
<domain type='qemu'>
<name>QEMUGuest1</name>
<uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
<memory unit='KiB'>219136</memory>
<currentMemory unit='KiB'>219136</currentMemory>
<vcpu placement='static'>1</vcpu>
<os>
<type arch='x86_64' machine='pc'>hvm</type>
<boot dev='hd'/>
</os>
<clock offset='utc'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>destroy</on_crash>
<devices>
<emulator>/usr/bin/qemu-system-x86_64</emulator>
<controller type='usb' index='0'/>
<controller type='pci' index='0' model='pci-root'/>
<input type='mouse' bus='ps2'/>
<input type='keyboard' bus='ps2'/>
<memballoon model='none'/>
<shmem name='shmem0'/>
<shmem name='shmem1'>
<size unit='M'>128</size>
</shmem>
<shmem name='shmem2'>
<size unit='M'>256</size>
<address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
</shmem>
<shmem name='shmem3'>
<model type='ivshmem'/>
<size unit='M'>512</size>
<server/>
</shmem>
<shmem name='shmem4'>
<size unit='M'>1024</size>
<server path='/tmp/shmem4-sock'/>
</shmem>
<shmem name='shmem5'>
<size unit='M'>2048</size>
<server path='/tmp/shmem5-sock'/>
<msi ioeventfd='off'/>
</shmem>
<shmem name='shmem6'>
<model type='ivshmem'/>
<size unit='M'>4096</size>
<server path='/tmp/shmem6-sock'/>
<msi vectors='16'/>
</shmem>
<shmem name='shmem7'>
<size unit='M'>8192</size>
<server path='/tmp/shmem7-sock'/>
<msi vectors='32' ioeventfd='on'/>
</shmem>
</devices>
</domain>

2
tests/qemuxml2argvtest.c
View File

@ -2441,8 +2441,6 @@ mymain(void)
DO_TEST_CAPS_ARCH_VER_FULL("fips-enabled", "x86_64", "5.1.0", ARG_FLAGS, FLAG_FIPS_HOST);
DO_TEST_CAPS_ARCH_LATEST_FULL("fips-enabled", "x86_64", ARG_FLAGS, FLAG_FIPS_HOST);
DO_TEST("shmem", QEMU_CAPS_DEVICE_IVSHMEM);
DO_TEST_PARSE_ERROR_NOCAPS("shmem");
DO_TEST_CAPS_LATEST("shmem-plain-doorbell");
DO_TEST_CAPS_LATEST_FAILURE("shmem-invalid-size");
DO_TEST_CAPS_LATEST_FAILURE("shmem-invalid-address");

74
tests/qemuxml2xmloutdata/shmem.xml
View File

@ -1,74 +0,0 @@
<domain type='qemu'>
<name>QEMUGuest1</name>
<uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
<memory unit='KiB'>219136</memory>
<currentMemory unit='KiB'>219136</currentMemory>
<vcpu placement='static'>1</vcpu>
<os>
<type arch='x86_64' machine='pc'>hvm</type>
<boot dev='hd'/>
</os>
<clock offset='utc'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>destroy</on_crash>
<devices>
<emulator>/usr/bin/qemu-system-x86_64</emulator>
<controller type='usb' index='0'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
</controller>
<controller type='pci' index='0' model='pci-root'/>
<input type='mouse' bus='ps2'/>
<input type='keyboard' bus='ps2'/>
<audio id='1' type='none'/>
<memballoon model='none'/>
<shmem name='shmem0'>
<model type='ivshmem'/>
<size unit='M'>4</size>
<address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
</shmem>
<shmem name='shmem1'>
<model type='ivshmem'/>
<size unit='M'>128</size>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
</shmem>
<shmem name='shmem2'>
<model type='ivshmem'/>
<size unit='M'>256</size>
<address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
</shmem>
<shmem name='shmem3'>
<model type='ivshmem'/>
<size unit='M'>512</size>
<server/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
</shmem>
<shmem name='shmem4'>
<model type='ivshmem'/>
<size unit='M'>1024</size>
<server path='/tmp/shmem4-sock'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
</shmem>
<shmem name='shmem5'>
<model type='ivshmem'/>
<size unit='M'>2048</size>
<server path='/tmp/shmem5-sock'/>
<msi ioeventfd='off'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
</shmem>
<shmem name='shmem6'>
<model type='ivshmem'/>
<size unit='M'>4096</size>
<server path='/tmp/shmem6-sock'/>
<msi vectors='16'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0'/>
</shmem>
<shmem name='shmem7'>
<model type='ivshmem'/>
<size unit='M'>8192</size>
<server path='/tmp/shmem7-sock'/>
<msi vectors='32' ioeventfd='on'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x09' function='0x0'/>
</shmem>
</devices>
</domain>

1
tests/qemuxml2xmltest.c
View File

@ -916,7 +916,6 @@ mymain(void)
DO_TEST_CAPS_LATEST("tap-vhost");
DO_TEST_CAPS_LATEST("tap-vhost-incorrect");
DO_TEST("shmem", QEMU_CAPS_DEVICE_IVSHMEM);
DO_TEST_CAPS_LATEST("shmem-plain-doorbell");
DO_TEST_CAPS_LATEST("smbios");
DO_TEST_CAPS_LATEST("smbios-multiple-type2");