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qemu: Add support for guest CPU cache This patch maps /domain/cpu/cache element into -cpu parameters: - <cache mode='passthrough'/> is translated to host-cache-info=on - <cache level='3' mode='emulate'/> is transformed into l3-cache=on - <cache mode='disable'/> is turned in host-cache-info=off,l3-cache=off Any other <cache> element is forbidden. The tricky part is detecting whether QEMU supports the CPU properties. The 'host-cache-info' property is introduced in v2.4.0-1389-ge265e3e480, earlier QEMU releases enabled host-cache-info by default and had no way to disable it. If the property is present, it defaults to 'off' for any QEMU until at least 2.9.0. The 'l3-cache' property was introduced later by v2.7.0-200-g14c985cffa. Earlier versions worked as if l3-cache=off was passed. For any QEMU until at least 2.9.0 l3-cache is 'off' by default. QEMU 2.9.0 was the first release which supports probing both properties by running device-list-properties with typename=host-x86_64-cpu. Older QEMU releases did not support device-list-properties command for CPU devices. Thus we can't really rely on probing them and we can just use query-cpu-model-expansion QMP command as a witness. Because the cache property probing is only reliable for QEMU >= 2.9.0 when both are already supported for quite a few releases, we let QEMU report an error if a specific cache mode is explicitly requested. The other mode (or both if a user requested CPU cache to be disabled) is explicitly turned off for QEMU >= 2.9.0 to avoid any surprises in case the QEMU defaults change. Any older QEMU already turns them off so not doing so explicitly does not make any harm. Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2017-04-25 17:07:19 +00:00
LC_ALL=C \
PATH=/bin \
tests: Drop more QEMU driver config overrides These are allegedly necessary to keep the output consistent, but now that we're using a privileged config for the driver we get the desired behavior out of the box, and as a bonus the paths match what you would actually see on a regular host. Signed-off-by: Andrea Bolognani <abologna@redhat.com> Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
2023-03-02 18:05:53 +00:00
HOME=/var/lib/libvirt/qemu/domain--1-foo \
qemu: Add support for guest CPU cache This patch maps /domain/cpu/cache element into -cpu parameters: - <cache mode='passthrough'/> is translated to host-cache-info=on - <cache level='3' mode='emulate'/> is transformed into l3-cache=on - <cache mode='disable'/> is turned in host-cache-info=off,l3-cache=off Any other <cache> element is forbidden. The tricky part is detecting whether QEMU supports the CPU properties. The 'host-cache-info' property is introduced in v2.4.0-1389-ge265e3e480, earlier QEMU releases enabled host-cache-info by default and had no way to disable it. If the property is present, it defaults to 'off' for any QEMU until at least 2.9.0. The 'l3-cache' property was introduced later by v2.7.0-200-g14c985cffa. Earlier versions worked as if l3-cache=off was passed. For any QEMU until at least 2.9.0 l3-cache is 'off' by default. QEMU 2.9.0 was the first release which supports probing both properties by running device-list-properties with typename=host-x86_64-cpu. Older QEMU releases did not support device-list-properties command for CPU devices. Thus we can't really rely on probing them and we can just use query-cpu-model-expansion QMP command as a witness. Because the cache property probing is only reliable for QEMU >= 2.9.0 when both are already supported for quite a few releases, we let QEMU report an error if a specific cache mode is explicitly requested. The other mode (or both if a user requested CPU cache to be disabled) is explicitly turned off for QEMU >= 2.9.0 to avoid any surprises in case the QEMU defaults change. Any older QEMU already turns them off so not doing so explicitly does not make any harm. Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2017-04-25 17:07:19 +00:00
USER=test \
LOGNAME=test \
tests: Drop more QEMU driver config overrides These are allegedly necessary to keep the output consistent, but now that we're using a privileged config for the driver we get the desired behavior out of the box, and as a bonus the paths match what you would actually see on a regular host. Signed-off-by: Andrea Bolognani <abologna@redhat.com> Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
2023-03-02 18:05:53 +00:00
XDG_DATA_HOME=/var/lib/libvirt/qemu/domain--1-foo/.local/share \
XDG_CACHE_HOME=/var/lib/libvirt/qemu/domain--1-foo/.cache \
XDG_CONFIG_HOME=/var/lib/libvirt/qemu/domain--1-foo/.config \
qemu: Add support for guest CPU cache This patch maps /domain/cpu/cache element into -cpu parameters: - <cache mode='passthrough'/> is translated to host-cache-info=on - <cache level='3' mode='emulate'/> is transformed into l3-cache=on - <cache mode='disable'/> is turned in host-cache-info=off,l3-cache=off Any other <cache> element is forbidden. The tricky part is detecting whether QEMU supports the CPU properties. The 'host-cache-info' property is introduced in v2.4.0-1389-ge265e3e480, earlier QEMU releases enabled host-cache-info by default and had no way to disable it. If the property is present, it defaults to 'off' for any QEMU until at least 2.9.0. The 'l3-cache' property was introduced later by v2.7.0-200-g14c985cffa. Earlier versions worked as if l3-cache=off was passed. For any QEMU until at least 2.9.0 l3-cache is 'off' by default. QEMU 2.9.0 was the first release which supports probing both properties by running device-list-properties with typename=host-x86_64-cpu. Older QEMU releases did not support device-list-properties command for CPU devices. Thus we can't really rely on probing them and we can just use query-cpu-model-expansion QMP command as a witness. Because the cache property probing is only reliable for QEMU >= 2.9.0 when both are already supported for quite a few releases, we let QEMU report an error if a specific cache mode is explicitly requested. The other mode (or both if a user requested CPU cache to be disabled) is explicitly turned off for QEMU >= 2.9.0 to avoid any surprises in case the QEMU defaults change. Any older QEMU already turns them off so not doing so explicitly does not make any harm. Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2017-04-25 17:07:19 +00:00
/usr/bin/qemu-system-x86_64 \
qemu: command: Always assume support for '-name guest=' and '-name debug-threads=on' All QEMU versions we support have these and it's very unlikely that they will be removed. Remove the capability checks. Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Martin Kletzander <mkletzan@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-08-10 14:39:38 +00:00
-name guest=foo,debug-threads=on \
qemu: Add support for guest CPU cache This patch maps /domain/cpu/cache element into -cpu parameters: - <cache mode='passthrough'/> is translated to host-cache-info=on - <cache level='3' mode='emulate'/> is transformed into l3-cache=on - <cache mode='disable'/> is turned in host-cache-info=off,l3-cache=off Any other <cache> element is forbidden. The tricky part is detecting whether QEMU supports the CPU properties. The 'host-cache-info' property is introduced in v2.4.0-1389-ge265e3e480, earlier QEMU releases enabled host-cache-info by default and had no way to disable it. If the property is present, it defaults to 'off' for any QEMU until at least 2.9.0. The 'l3-cache' property was introduced later by v2.7.0-200-g14c985cffa. Earlier versions worked as if l3-cache=off was passed. For any QEMU until at least 2.9.0 l3-cache is 'off' by default. QEMU 2.9.0 was the first release which supports probing both properties by running device-list-properties with typename=host-x86_64-cpu. Older QEMU releases did not support device-list-properties command for CPU devices. Thus we can't really rely on probing them and we can just use query-cpu-model-expansion QMP command as a witness. Because the cache property probing is only reliable for QEMU >= 2.9.0 when both are already supported for quite a few releases, we let QEMU report an error if a specific cache mode is explicitly requested. The other mode (or both if a user requested CPU cache to be disabled) is explicitly turned off for QEMU >= 2.9.0 to avoid any surprises in case the QEMU defaults change. Any older QEMU already turns them off so not doing so explicitly does not make any harm. Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2017-04-25 17:07:19 +00:00
-S \
qemuxml2argvtest: Enable JSON syntax for -device, -object, and -netdev for all fake-caps tests To minimize upcoming churn in test data when they will be converted to latest capabilities enable JSON syntax for -device, -object, and -netdev for all fake caps test files. Doing this should also help git track renames of the files better as there will be more of consistent context present. We can do this safely as internally we generate JSON first and then back-convert it into the old-style commandline if given qemu doesn't support it. This means that all generated content will be the same. Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
2023-08-31 08:56:28 +00:00
-object '{"qom-type":"secret","id":"masterKey0","format":"raw","file":"/var/lib/libvirt/qemu/domain--1-foo/master-key.aes"}' \
testutilsqemu: Always populate default ram id, default cpu, ACPI support for fake machines Enable a few defaults that will decrease churn when converting tests to real capabilities. Since the fake machines are added only for x86_64 at this point we can assume that ACPI is present via -machine. In case of the default ram id assume the same. Additionally the logic was broken as fake capabilities don't have a version so the default RAM was never actually populated into fake caps tests. For CPU we add 'qemu64' as that is the default picked by qemu. We also assume that qemu requires an explicit backend for -numa, which is the case for modern machines. Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
2023-08-31 09:36:01 +00:00
-machine pc,usb=off,dump-guest-core=off,memory-backend=pc.ram,acpi=off \
qemu: Switch to -accel We currently use -machine accel=XXX which is just a syntax sugar for -accel XXX. The former doesn't allow specifying arguments for accelerator, because all arguments passed to -machine are treated as arguments of machine itself. The -accel argument was introduced in QEMU commit v2.9.0-rc0~70^2~19 and since our minimum required version is newer (2.11.0) we can safely assume its existence and use it without any capability. Resolves: https://gitlab.com/libvirt/libvirt/-/issues/233 Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Tested-by: Kashyap Chamarthy <kchamart@redhat.com> Reviewed-by: Peter Krempa <pkrempa@redhat.com>
2021-11-05 08:38:10 +00:00
-accel kvm \
qemuxml2argvtest: Modernize test cases using 'host-model' CPU Modernize test cases using 'host-mode' cpu type, where the actual CPU doesn't isn't important. As using the host cpu from the 'latest' capabilities data would cause test churn in case the host cpu changes in the future, convert them using the overriden Haswell cpu. Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
2023-09-04 11:47:42 +00:00
-cpu Haswell,vme=on,ds=on,acpi=on,ss=on,ht=on,tm=on,pbe=on,dtes64=on,monitor=on,ds-cpl=on,vmx=on,smx=on,est=on,tm2=on,xtpr=on,pdcm=on,f16c=on,rdrand=on,pdpe1gb=on,abm=on,lahf-lm=on,l3-cache=off \
qemu_command: Always use modern syntax of '-m' Specify the memory size by using '-m size=2048k' instead of just '-m 2'. The new syntax is used when memory hotplug is enabled. To preserve memory sizing, if memory hotplug is disabled the size is rounded down to the nearest mebibyte. Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
2023-06-21 14:31:46 +00:00
-m size=219136k \
testutilsqemu: Always populate default ram id, default cpu, ACPI support for fake machines Enable a few defaults that will decrease churn when converting tests to real capabilities. Since the fake machines are added only for x86_64 at this point we can assume that ACPI is present via -machine. In case of the default ram id assume the same. Additionally the logic was broken as fake capabilities don't have a version so the default RAM was never actually populated into fake caps tests. For CPU we add 'qemu64' as that is the default picked by qemu. We also assume that qemu requires an explicit backend for -numa, which is the case for modern machines. Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
2023-08-31 09:36:01 +00:00
-object '{"qom-type":"memory-backend-ram","id":"pc.ram","size":224395264}' \
qemu: command: Always assume QEMU_CAPS_OVERCOMMIT Starting with qemu-3.1 we always have the '-overcommit' argument and use it instead of '-realtime'. Remove the capability check and fix all fake-caps tests. Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-02-10 11:57:26 +00:00
-overcommit mem-lock=off \
qemu: Add support for guest CPU cache This patch maps /domain/cpu/cache element into -cpu parameters: - <cache mode='passthrough'/> is translated to host-cache-info=on - <cache level='3' mode='emulate'/> is transformed into l3-cache=on - <cache mode='disable'/> is turned in host-cache-info=off,l3-cache=off Any other <cache> element is forbidden. The tricky part is detecting whether QEMU supports the CPU properties. The 'host-cache-info' property is introduced in v2.4.0-1389-ge265e3e480, earlier QEMU releases enabled host-cache-info by default and had no way to disable it. If the property is present, it defaults to 'off' for any QEMU until at least 2.9.0. The 'l3-cache' property was introduced later by v2.7.0-200-g14c985cffa. Earlier versions worked as if l3-cache=off was passed. For any QEMU until at least 2.9.0 l3-cache is 'off' by default. QEMU 2.9.0 was the first release which supports probing both properties by running device-list-properties with typename=host-x86_64-cpu. Older QEMU releases did not support device-list-properties command for CPU devices. Thus we can't really rely on probing them and we can just use query-cpu-model-expansion QMP command as a witness. Because the cache property probing is only reliable for QEMU >= 2.9.0 when both are already supported for quite a few releases, we let QEMU report an error if a specific cache mode is explicitly requested. The other mode (or both if a user requested CPU cache to be disabled) is explicitly turned off for QEMU >= 2.9.0 to avoid any surprises in case the QEMU defaults change. Any older QEMU already turns them off so not doing so explicitly does not make any harm. Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2017-04-25 17:07:19 +00:00
-smp 1,sockets=1,cores=1,threads=1 \
-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \
qemu: deprecate QEMU_CAPS_DISPLAY Implied by QEMU >= 1.2.0. Signed-off-by: Ján Tomko <jtomko@redhat.com> Reviewed-by: Andrea Bolognani <abologna@redhat.com>
2018-03-29 10:51:55 +00:00
-display none \
qemu: deprecate QEMU_CAPS_NO_USER_CONFIG Implied by QEMU >= 1.2.0. Delete this one first, because QEMU_CAPS_NODEFCONFIG is only used when QEMU_CAPS_NO_USER_CONFIG is unsupported. Signed-off-by: Ján Tomko <jtomko@redhat.com> Reviewed-by: Andrea Bolognani <abologna@redhat.com>
2018-03-29 10:51:55 +00:00
-no-user-config \
qemu: Add support for guest CPU cache This patch maps /domain/cpu/cache element into -cpu parameters: - <cache mode='passthrough'/> is translated to host-cache-info=on - <cache level='3' mode='emulate'/> is transformed into l3-cache=on - <cache mode='disable'/> is turned in host-cache-info=off,l3-cache=off Any other <cache> element is forbidden. The tricky part is detecting whether QEMU supports the CPU properties. The 'host-cache-info' property is introduced in v2.4.0-1389-ge265e3e480, earlier QEMU releases enabled host-cache-info by default and had no way to disable it. If the property is present, it defaults to 'off' for any QEMU until at least 2.9.0. The 'l3-cache' property was introduced later by v2.7.0-200-g14c985cffa. Earlier versions worked as if l3-cache=off was passed. For any QEMU until at least 2.9.0 l3-cache is 'off' by default. QEMU 2.9.0 was the first release which supports probing both properties by running device-list-properties with typename=host-x86_64-cpu. Older QEMU releases did not support device-list-properties command for CPU devices. Thus we can't really rely on probing them and we can just use query-cpu-model-expansion QMP command as a witness. Because the cache property probing is only reliable for QEMU >= 2.9.0 when both are already supported for quite a few releases, we let QEMU report an error if a specific cache mode is explicitly requested. The other mode (or both if a user requested CPU cache to be disabled) is explicitly turned off for QEMU >= 2.9.0 to avoid any surprises in case the QEMU defaults change. Any older QEMU already turns them off so not doing so explicitly does not make any harm. Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2017-04-25 17:07:19 +00:00
-nodefaults \
qemu: Always assume QEMU_CAPS_CHARDEV_FD_PASS_COMMANDLINE All qemu versions now support FD passing either directly or via FDset. Assume that we always have this capability so that we can simplify chardev handling in many cases. Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-02-03 12:31:28 +00:00
-chardev socket,id=charmonitor,fd=1729,server=on,wait=off \
qemu: deprecate QEMU_CAPS_MONITOR_JSON We require QEMU >= 1.5.0, assume every QEMU supports it. Sadly that does not let us trivially drop qemuMonitor's priv->monJSON bool, because of qemuDomainQemuAttach. Signed-off-by: Ján Tomko <jtomko@redhat.com> Reviewed-by: Andrea Bolognani <abologna@redhat.com>
2018-03-28 22:04:58 +00:00
-mon chardev=charmonitor,id=monitor,mode=control \
qemu: deprecate QEMU_CAPS_RTC Implied by QEMU >= 1.2.0. Signed-off-by: Ján Tomko <jtomko@redhat.com> Reviewed-by: Andrea Bolognani <abologna@redhat.com>
2018-03-29 10:51:55 +00:00
-rtc base=utc \
qemu: deprecate QEMU_CAPS_NO_SHUTDOWN Implied by QEMU >= 1.2.0. Signed-off-by: Ján Tomko <jtomko@redhat.com> Reviewed-by: Andrea Bolognani <abologna@redhat.com>
2018-03-29 10:51:55 +00:00
-no-shutdown \
qemu: command: Always assume 'QEMU_CAPS_BOOT_STRICT' Added by c8a6ae8bb9 in qemu-v1.5.0 and can't be compiled out. Assume that it's present and fix all fake-caps tests. Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-09-20 14:22:59 +00:00
-boot strict=on \
qemuxml2argvtest: Assume QEMU_CAPS_PIIX3_USB_UHCI for all fake-caps tests To minimize further churn when coverting to real capabilities, assume that all fake-caps machines support the piix3 USB controller. Since we already have solid testing of USB controllers, this will have effect only in cases when it's not relevant to the test itself. Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
2023-08-31 12:20:39 +00:00
-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
qemu: command: Always assume QEMU_CAPS_AUDIODEV Generate only new version of the '-audiodev' commandline. The leftover old code and validation will be removed in subsequent patches. Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-06-22 13:36:23 +00:00
-audiodev '{"id":"audio1","driver":"none"}' \
qemuxml2argvtest: Enable JSON syntax for -device, -object, and -netdev for all fake-caps tests To minimize upcoming churn in test data when they will be converted to latest capabilities enable JSON syntax for -device, -object, and -netdev for all fake caps test files. Doing this should also help git track renames of the files better as there will be more of consistent context present. We can do this safely as internally we generate JSON first and then back-convert it into the old-style commandline if given qemu doesn't support it. This means that all generated content will be the same. Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
2023-08-31 08:56:28 +00:00
-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
qemuxml2argvtest: Enable 'seccomp' sandbox in all fake caps tests In order to minimize further churn, make all fake-caps test assume that the seccomp sandbox is supported. Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
2023-08-31 09:43:43 +00:00
-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
qemu: command: Always assume support for '-msg timestamp=on' All supported QEMU versions have this option so there's no need for us to base it on the capability. Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Martin Kletzander <mkletzan@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-08-10 15:07:10 +00:00
-msg timestamp=on
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