libvirt/tests/qemuxmlconfdata/pv-spinlock-disabled.xml

<domain type='qemu'>
  <name>QEMUGuest1</name>
  <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
  <memory unit='KiB'>219100</memory>
  <currentMemory unit='KiB'>219100</currentMemory>
  <vcpu placement='static'>6</vcpu>
  <os>
    <type arch='x86_64' machine='pc'>hvm</type>
    <boot dev='network'/>
  </os>
  <features>
    <acpi/>
    <pae/>
    <pvspinlock state='off'/>
  </features>
  <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='virtio'/>
  </devices>
</domain>
qemu: Add support for paravirtual spinlocks in the guest The linux kernel recently added support for paravirtual spinlock handling to avoid performance regressions on overcomitted hosts. This feature needs to be turned in the hypervisor so that the guest OS is notified about the possible support. This patch adds a new feature "paravirt-spinlock" to the XML and supporting code to enable the "kvm_pv_unhalt" pseudo CPU feature in qemu. https://bugzilla.redhat.com/show_bug.cgi?id=1008989 2013-09-23 18:32:11 +02:00			`<domain type='qemu'>`
			`<name>QEMUGuest1</name>`
			`<uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>`
			`<memory unit='KiB'>219100</memory>`
			`<currentMemory unit='KiB'>219100</currentMemory>`
			`<vcpu placement='static'>6</vcpu>`
			`<os>`
qemuxml2argvdata: Use proper arch and emulator for x86 real capability tests Upcoming patches will modify how we populate the capability cache in tests to be more saner. This also means that the emulator binary and architecture used in the test files using real capabilities must match what the real capabilities have. Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com> 2022-01-04 16:36:46 +01:00			`<type arch='x86_64' machine='pc'>hvm</type>`
qemu: Add support for paravirtual spinlocks in the guest The linux kernel recently added support for paravirtual spinlock handling to avoid performance regressions on overcomitted hosts. This feature needs to be turned in the hypervisor so that the guest OS is notified about the possible support. This patch adds a new feature "paravirt-spinlock" to the XML and supporting code to enable the "kvm_pv_unhalt" pseudo CPU feature in qemu. https://bugzilla.redhat.com/show_bug.cgi?id=1008989 2013-09-23 18:32:11 +02:00			`<boot dev='network'/>`
			`</os>`
			`<features>`
			`<acpi/>`
			`<pae/>`
			`<pvspinlock state='off'/>`
			`</features>`
			`<clock offset='utc'/>`
			`<on_poweroff>destroy</on_poweroff>`
			`<on_reboot>restart</on_reboot>`
			`<on_crash>destroy</on_crash>`
			`<devices>`
qemuxml2argvdata: Use proper arch and emulator for x86 real capability tests Upcoming patches will modify how we populate the capability cache in tests to be more saner. This also means that the emulator binary and architecture used in the test files using real capabilities must match what the real capabilities have. Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com> 2022-01-04 16:36:46 +01:00			`<emulator>/usr/bin/qemu-system-x86_64</emulator>`
qemu: Add support for paravirtual spinlocks in the guest The linux kernel recently added support for paravirtual spinlock handling to avoid performance regressions on overcomitted hosts. This feature needs to be turned in the hypervisor so that the guest OS is notified about the possible support. This patch adds a new feature "paravirt-spinlock" to the XML and supporting code to enable the "kvm_pv_unhalt" pseudo CPU feature in qemu. https://bugzilla.redhat.com/show_bug.cgi?id=1008989 2013-09-23 18:32:11 +02:00			`<controller type='usb' index='0'/>`
			`<controller type='pci' index='0' model='pci-root'/>`
device: cleanup input device code The current code was a little bit odd. At first we've removed all possible implicit input devices from domain definition to add them later back if there was any graphics device defined while parsing XML description. That's not all, while formating domain definition to XML description we at first ignore any input devices with bus different to USB and VIRTIO and few lines later we add implicit input devices to XML. This seems to me as a lot of code for nothing. This patch may look to be more complicated than original approach, but this is a preferred way to modify/add driver specific stuff only in those drivers and not deal with them in common parsing/formating functions. The update is to add those implicit input devices into config XML to follow the real HW configuration visible by guest OS. There was also inconsistence between our behavior and QEMU's in the way, that in QEMU there is no way how to disable those implicit input devices for x86 architecture and they are available always, even without graphics device. This applies also to XEN hypervisor. VZ driver already does its part by putting correct implicit devices into live XML. Signed-off-by: Pavel Hrdina <phrdina@redhat.com> 2016-01-11 12:40:32 +01:00			`<input type='mouse' bus='ps2'/>`
			`<input type='keyboard' bus='ps2'/>`
qemu: Add support for paravirtual spinlocks in the guest The linux kernel recently added support for paravirtual spinlock handling to avoid performance regressions on overcomitted hosts. This feature needs to be turned in the hypervisor so that the guest OS is notified about the possible support. This patch adds a new feature "paravirt-spinlock" to the XML and supporting code to enable the "kvm_pv_unhalt" pseudo CPU feature in qemu. https://bugzilla.redhat.com/show_bug.cgi?id=1008989 2013-09-23 18:32:11 +02:00			`<memballoon model='virtio'/>`
			`</devices>`
			`</domain>`