This commit changes the _qemuDomainStorageSourcePrivate struct
to support multiple secrets (instead of a single one before this commit).
This will useful for storage encryption requiring more than a single secret.
Signed-off-by: Or Ozeri <oro@il.ibm.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
This commit changes the qemuBlockStorageSourceAttachData struct
to support multiple secrets (instead of a single one before this commit).
This will useful for storage encryption requiring more than a single secret.
Signed-off-by: Or Ozeri <oro@il.ibm.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
When a thread-context object is specified on the cmd line, then
QEMU spawns a thread and sets its affinity to the list of NUMA
nodes specified in .node-affinity attribute. And this works just
fine, until the main QEMU thread itself is not restricted.
Because of v5.3.0-rc1~18 we restrict the main emulator thread
even before QEMU is executed and thus then it tries to set
affinity of a thread-context thread, it inevitably fails with:
Setting CPU affinity failed: Invalid argument
Now, we could lift the pinning temporarily, let QEMU spawn all
thread-context threads, and enforce pinning again, but that would
require some form of communication with QEMU (maybe -preconfig?).
But that would still be wrong, because it would circumvent
<emulatorpin/>.
Technically speaking, thread-context is an internal
implementation detail of QEMU, and if it weren't for it, the main
emulator thread would be doing the allocation. Therefore, we
should honor the pinning and prune the list of node so that
inaccessible ones are dropped.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2154750
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Kristina Hanicova <khanicov@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
When building a thread-context object (inside of
qemuBuildThreadContextProps()) we look at given memory-backend-*
object and look for .host-nodes attribute. This works, as long as
we need to just copy the attribute value into another
thread-context attribute. But soon we will need to adjust it.
That's the point where having the value in virBitmap comes handy.
Utilize the previous commit, which made
qemuBuildMemoryBackendProps() set the argument and pass it into
qemuBuildThreadContextProps().
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Kristina Hanicova <khanicov@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
While it's true that anybody who's interested in getting
.host-nodes attribute value can just use
virJSONValueObjectGetArray() (and that's exactly what
qemuBuildThreadContextProps() is doing, btw), if somebody is
interested in getting the actual virBitmap, they would have to
parse the JSON array.
Instead, introduce an argument to qemuBuildMemoryBackendProps()
which is set to corresponding value used when formatting the
attribute.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Kristina Hanicova <khanicov@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
There are two compound conditions in
qemuBuildMemoryBackendProps() and each one checks for nodemask
for NULL first. Join them into one bigger block.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Kristina Hanicova <khanicov@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Commit 54fa1b44afc ("conf: Add loadparm boot option for a boot device")
added the ability to specify a loadparm parameter on a <boot/> tag, while
commit 29ba41c2d40 ("qemu: Add loadparm to qemu command line string")
added that value to the QEMU "-machine" command line parameters.
Unfortunately, the latter commit only looked at disks and network
devices for boot information, even though anything with
VIR_DOMAIN_DEF_FORMAT_ALLOW_BOOT could potentially have this tag.
In practice, a <hostdev> tag pointing to a passthrough (SCSI or DASD)
disk device can be used in this way, which means the loadparm is
accepted, but not given to QEMU.
Correct this, and add some XML/argv tests.
Signed-off-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This can improve performance for some guests since it reduces copying of
display data between host and guest. Requires udmabuf on the host.
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Check the architecture of the guest rather than relying on
QEMU_CAPS_LOADPARM which is set based on architecture.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Use the guest architecture to decide whether to format
'aes-key-wrap'/'dea-key-wrap' rather than
QEMU_CAPS_AES_KEY_WRAP/QEMU_CAPS_DEA_KEY_WRAP which were set based on
architecture.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
QEMU_CAPS_MACH_VIRT_GIC_VERSION is always asserted for VIR_ARCH_AARCH64.
Note that this patch is a direct conversion of the logic originally
residing in the capabilities code. A better coversion would be (based on
whether it is available for just AARCH64 or also ARM) to base it on the
guest architecture.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Rather than asserting a capability based on architecture, format the
fallback parameter based on the presence of the newer capability and an
explicit architecture check.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
QEMU_CAPS_NO_ACPI is asserted based on architecture, so it can be
replaced by a non-capability check.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Format aliases into temporary strings and append them using
virJSONValueObjectAdd.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The 'ipv6-prefix' and 'ipv6-prefixlen' fields can be directly added
using virJSONValueObjectAdd rather than by two separate calls.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Use virJSONValueObjectAdd and format the string directly via
g_strdup_printf. In the end virJSONValueObjectAppendStringPrintf will be
removed.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Prefer virJSONValueObjectAdd which we already use internally combined
with local formatting of the string.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
VIR_DOMAIN_NET_TYPE_NULL and VIR_DOMAIN_NET_TYPE_VDS are not implemented
for the qemu driver but the formatter code in 'qemuBuildHostNetProps'
didn't report an error for them and didn't even return from the function
when they were encountered.
This caused a crash in 'virJSONValueObjectAppendStringPrintf' which
does not tolerate NULL JSON object to append to when the unsupported
devices were used.
Properly report error when unhandled devices are encountered. This also
includes the case for VIR_DOMAIN_NET_TYPE_HOSTDEV, but that code path
should never be reached.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2175582
Fixes: bac6b266fb6a / 6457619d186
Fixes: 0225483adce
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
QEMU deprecated the '-no-acpi' option, thus we should switch to the
modern way to use '-machine'.
Certain ARM machine types don't support ACPI. Given our historically
broken design of using '<acpi/>' without attribute to enable ACPI and
qemu's default of enabling it without '-no-acpi' such configurations
would not work.
Now when qemu reports whether given machine type supports ACPI we can do
a better decision and un-break those configs. Unfortunately not
retroactively.
Resolves: https://gitlab.com/libvirt/libvirt/-/issues/297
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Copy the pointer to qemuFDPass into struct qemuBlockStorageSourceAttachData
so that it can be used from qemuBuildBlockStorageSourceAttachDataCommandline
rather than looping again in qemuBuildDiskSourceCommandLineFDs.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
In order for the iTCO watchdog to be operational we must disable the
noreboot pin strap in qemu. This is the default starting from 8.0
machine types, but desirable for older ones as well. And we can safely
do that since that is not guest-visible.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This is already possible with qemu, and actually already happening with
q35 machines and a specified watchdog since q35 already includes a
watchdog we do not include in the XML. In order to express such
posibility multiple watchdogs need to be supported.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Support virtio-crypto device, also support cryptodev types:
- builtin
- lkcf
Finally, we can launch a VM(QEMU) with one or more crypto devices by
libvirt.
Signed-off-by: zhenwei pi <pizhenwei@bytedance.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Introduce crypto device like:
<crypto model='virtio' type='qemu'>
<backend model='builtin' queues='1'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x0a' function='0x0'/>
</crypto>
<crypto model='virtio' type='qemu'>
<backend model='lkcf'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x0b' function='0x0'/>
</crypto>
Currently, crypto model supports virtio only, type supports qemu only
(vhost-user in the plan). For the qemu type, backend supports modle
builtin/lkcf, and the queues is optional.
Changes in this commit:
- docs: formatdomain.rst
- schemas: domaincommon.rng
- conf: crypto related domain conf
- qemu: crypto related
- tests: crypto related test
Signed-off-by: zhenwei pi <pizhenwei@bytedance.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Currently, the ThreadContext object is generated whenever we see
.host-nodes attribute for a memory-backend-* object. The idea was
that when the backend is pinned to a specific set of host NUMA
nodes, then the allocation could be happening on CPUs from those
nodes too. But this may not be always possible.
Users might configure their guests in such way that vCPUs and
corresponding guest NUMA nodes are on different host NUMA nodes
than emulator thread. In this case, ThreadContext won't work,
because ThreadContext objects live in context of the emulator
thread (vCPU threads are moved around by us later, when emulator
thread finished its setup and spawned vCPU threads - see
qemuProcessSetupVcpus()). Therefore, memory allocation is done by
emulator thread which is pinned to a subset of host NUMA nodes,
but tries to create a ThreadContext object with a disjoint subset
of host NUMA nodes, which fails.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2154750
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This consists of (1) adding the necessary args to the qemu commandline
netdev option, and (2) starting a passt process prior to starting
qemu, and making sure that it is terminated when it's no longer
needed. Under normal circumstances, passt will terminate itself as
soon as qemu closes its socket, but in case of some error where qemu
is never started, or fails to startup completely, we need to terminate
passt manually.
Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Prepare the internal data for passing FDs instead of having qemu open
the file internally.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Up until commit 629282d88454, using mode=restrictive caused
virNumaSetupMemoryPolicy() to be called from qemuProcessHook(),
and that in turn resulted in virNumaNodesetIsAvailable() being
called and the nodeset being validated.
After that change, the only validation for the nodeset is the one
happening in qemuBuildMemoryBackendProps(), which is skipped when
using mode=restrictive.
Make sure virNumaNodesetIsAvailable() is called whenever a
nodeset has been provided by the user, regardless of the mode.
https://bugzilla.redhat.com/show_bug.cgi?id=2156289
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
qemu is about to deprecate the '-no-hpet' option in favor of configuring
the timer via '-machine'.
Use the QEMU_CAPS_MACHINE_HPET capability to switch to the new syntax
and mask out the old QEMU_CAPS_NO_HPET capability at the same time to
prevent using the old syntax.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Introduce a new backend type 'external' for connecting to a swtpm daemon
not managed by libvirtd.
Mostly in one commit, thanks to -Wswitch and the way we generate
capabilities.
https://bugzilla.redhat.com/show_bug.cgi?id=2063723
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
When generating memory for main guest memory memory-backend-*
might be used. This means, we may need to generate thread-context
objects too.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
When generating memory for memory devices memory-backend-* might
be used. This means, we may need to generate thread-context
objects too.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
When generating memory for guest NUMA memory-backend-* might be
used. This means, we may need to generate thread-context objects
too.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
While technically thread-context objects can be reused, we only
use them (well, will use them) to pin memory allocation threads.
Therefore, once we connect to QEMU monitor, all memory (with
prealloc=yes) was allocated and thus these objects are no longer
needed and can be removed. For on demand allocation the TC object
is left behind.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
The aim of thread-context object is to set affinity on threads
that allocate memory for a memory-backend-* object. For instance:
-object '{"qom-type":"thread-context","id":"tc-ram-node0","node-affinity":[3]}' \
-object '{"qom-type":"memory-backend-memfd","id":"ram-node0","hugetlb":true,\
"hugetlbsize":2097152,"share":true,"prealloc":true,"prealloc-threads":8,\
"size":15032385536,"host-nodes":[3],"policy":"preferred",\
"prealloc-context":"tc-ram-node0"}' \
allocates 14GiB worth of memory, backed by 2MiB hugepages from
host NUMA node 3, using 8 threads. If it weren't for
thread-context these threads wouldn't have any affinity and thus
theoretically could be scheduled to run on CPUs of different NUMA
node (which is what I saw occasionally).
Therefore, whenever we are pinning memory (IOW setting host-nodes
attribute), we can generate thread-context object with the same
affinity.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
According to the result parsing from xml, add the argument of
SGX EPC memory backend into QEMU command line.
$ qemu-system-x86_64 \
...... \
-object '{"qom-type":"memory-backend-epc","id":"memepc0","prealloc":true,"size":67108864,"host-nodes":[0,1],"policy":"bind"}' \
-object '{"qom-type":"memory-backend-epc","id":"memepc1","prealloc":true,"size":16777216,"host-nodes":[2,3],"policy":"bind"}' \
-machine sgx-epc.0.memdev=memepc0,sgx-epc.0.node=0,sgx-epc.1.memdev=memepc1,sgx-epc.1.node=1
Signed-off-by: Lin Yang <lin.a.yang@intel.com>
Signed-off-by: Haibin Huang <haibin.huang@intel.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
qemu-6.2 introduced support for the hv-avic enlightenment which allows
to use Hyper-V SynIC with hardware APICv/AVIC enabled.
Implement the libvirt support for it.
Closes: https://gitlab.com/libvirt/libvirt/-/issues/402
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Introduced in QEMU's commit of v2.7.0-rc0~32^2~5 the .write-cache
attribute of virtio-blk dvice is always available for all QEMU
versions we support (4.2.0, currently). Therefore, we can assume
the capability is always set and thus doesn't need to be checked
for.
The change in some .args is justified, because the qemuxml2argvdatatest
runs these test caseses with very minimalistic set of capabilities,
that's nowhere near real life scenario.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Introduced in QEMU's commit of v2.9.0-rc0~48^2~25 the .share-rw
attribute of virtio-blk device is always available for all QEMU
versions we support (4.2.0, currently). Therefore, we can assume
the capability is always set and thus doesn't need to be checked
for.
The change in controller-order.args is justified, because the
qemuxml2argvdatatest runs the test case with very minimalistic
set of capabilities, that's nowhere near real life scenario.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Introduced in QEMU's commit of v0.13.0-rc0~1072 the
.logical_block_size attribute of virtio-blk device is always
available for all QEMU versions we support (4.2.0, currently).
Therefore, we can assume the capability is always set and thus
doesn't need to be checked for.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Introduced in QEMU's commit of v2.12.0-rc0~148^2~4 the .align
attribute of memory-backend-file is always available for all QEMU
versions we support (4.2.0, currently). Therefore, we can assume
the capability is always set and thus doesn't need to be checked
for.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Introduced in QEMU's commit of v2.11.0-rc0~95^2~9 the .discard
attribute of memory-backend-file is always available for all QEMU
versions we support (4.2.0, currently). Therefore, we can assume
the capability is always set and thus doesn't need to be checked
for.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Introduced in QEMU's commit of v2.1.0-rc0~41^2~26 only for Linux,
and later in v3.1.0-rc0~71^2~10 for all POSIX, the
memory-backend-file is going to be present for all QEMU versions
we support (4.2.0, currently). Therefore, we can assume the
capability is always set and thus doesn't need to be checked for.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Introduced in QEMU's commit of v2.1.0-rc0~41^2~104 the
memory-backend-ram is going to be present for all QEMU versions
we support (4.2.0, currently). Therefore, we can assume the
capability is always set and thus doesn't need to be checked for.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Adjust the parser and add missing switch cases to make the complier
happy.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Convert the field, adjust the XML parser to use virXMLPropEnum and add
the VIR_DOMAIN_TIMER_TICKPOLICY_LAST enum case to all appropriate
'switch' statements.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Use virTristateSwitchFromBool to fill in the default if user didn't
request it explicitly.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
