qemu: Enable firmware autoselection

https://bugzilla.redhat.com/show_bug.cgi?id=1564270

Now that everything is prepared for qemu driver we can enable
parser feature to allow users define such domains.

At the same time, introduce bunch of tests to test the feature.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
This commit is contained in:
Michal Privoznik 2019-02-25 14:15:28 +01:00
parent d433f3cdd8
commit 68ade25372
16 changed files with 448 additions and 2 deletions

View File

@ -6969,7 +6969,8 @@ virDomainDefParserConfig virQEMUDriverDomainDefParserConfig = {
.features = VIR_DOMAIN_DEF_FEATURE_MEMORY_HOTPLUG |
VIR_DOMAIN_DEF_FEATURE_OFFLINE_VCPUPIN |
VIR_DOMAIN_DEF_FEATURE_INDIVIDUAL_VCPUS |
VIR_DOMAIN_DEF_FEATURE_USER_ALIAS,
VIR_DOMAIN_DEF_FEATURE_USER_ALIAS |
VIR_DOMAIN_DEF_FEATURE_FW_AUTOSELECT,
};

View File

@ -585,7 +585,9 @@ qemucpumock_la_LIBADD = $(MOCKLIBS_LIBS)
qemuxml2argvtest_SOURCES = \
qemuxml2argvtest.c testutilsqemu.c testutilsqemu.h \
testutils.c testutils.h
testutils.c testutils.h \
virfilewrapper.c virfilewrapper.h \
$(NULL)
qemuxml2argvtest_LDADD = libqemutestdriver.la \
$(LDADDS) $(LIBXML_LIBS)

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@ -0,0 +1,37 @@
LC_ALL=C \
PATH=/bin \
HOME=/home/test \
USER=test \
LOGNAME=test \
QEMU_AUDIO_DRV=none \
/usr/bin/qemu-system-aarch64 \
-name guest=aarch64test,debug-threads=on \
-S \
-object secret,id=masterKey0,format=raw,\
file=/tmp/lib/domain--1-aarch64test/master-key.aes \
-machine virt-4.0,accel=tcg,usb=off,dump-guest-core=off,gic-version=2 \
-cpu cortex-a53 \
-drive file=/usr/share/AAVMF/AAVMF_CODE.fd,if=pflash,format=raw,unit=0,\
readonly=on \
-drive file=/var/lib/libvirt/qemu/nvram/aarch64test_VARS.fd,if=pflash,\
format=raw,unit=1 \
-m 1024 \
-realtime mlock=off \
-smp 1,sockets=1,cores=1,threads=1 \
-uuid 496d7ea8-9739-544b-4ebd-ef08be936e8b \
-display none \
-no-user-config \
-nodefaults \
-chardev socket,id=charmonitor,fd=1729,server,nowait \
-mon chardev=charmonitor,id=monitor,mode=control \
-rtc base=utc \
-no-shutdown \
-no-acpi \
-boot strict=on \
-kernel /aarch64.kernel \
-initrd /aarch64.initrd \
-append 'earlyprintk console=ttyAMA0,115200n8 rw root=/dev/vda rootwait' \
-dtb /aarch64.dtb \
-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,\
resourcecontrol=deny \
-msg timestamp=on

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@ -0,0 +1,30 @@
<domain type='qemu'>
<name>aarch64test</name>
<uuid>496d7ea8-9739-544b-4ebd-ef08be936e8b</uuid>
<memory unit='KiB'>1048576</memory>
<currentMemory unit='KiB'>1048576</currentMemory>
<vcpu placement='static'>1</vcpu>
<os firmware='efi'>
<type arch='aarch64' machine='virt-4.0'>hvm</type>
<kernel>/aarch64.kernel</kernel>
<initrd>/aarch64.initrd</initrd>
<cmdline>earlyprintk console=ttyAMA0,115200n8 rw root=/dev/vda rootwait</cmdline>
<dtb>/aarch64.dtb</dtb>
<boot dev='hd'/>
</os>
<features>
<apic/>
<pae/>
<gic version='2'/>
</features>
<cpu mode='custom' match='exact' check='none'>
<model fallback='allow'>cortex-a53</model>
</cpu>
<clock offset='utc'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>restart</on_crash>
<devices>
<emulator>/usr/bin/qemu-system-aarch64</emulator>
</devices>
</domain>

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@ -0,0 +1,39 @@
LC_ALL=C \
PATH=/bin \
HOME=/home/test \
USER=test \
LOGNAME=test \
QEMU_AUDIO_DRV=none \
/usr/bin/qemu-system-x86_64 \
-name guest=fedora,debug-threads=on \
-S \
-object secret,id=masterKey0,format=raw,\
file=/tmp/lib/domain--1-fedora/master-key.aes \
-machine pc-q35-4.0,accel=kvm,usb=off,dump-guest-core=off \
-bios /usr/share/seabios/bios-256k.bin \
-m 8 \
-realtime mlock=off \
-smp 1,sockets=1,cores=1,threads=1 \
-uuid 63840878-0deb-4095-97e6-fc444d9bc9fa \
-display none \
-no-user-config \
-nodefaults \
-chardev socket,id=charmonitor,fd=1729,server,nowait \
-mon chardev=charmonitor,id=monitor,mode=control \
-rtc base=utc \
-no-shutdown \
-global ICH9-LPC.disable_s3=0 \
-global ICH9-LPC.disable_s4=1 \
-boot menu=on,strict=on \
-device i82801b11-bridge,id=pci.1,bus=pcie.0,addr=0x1e \
-device pci-bridge,chassis_nr=2,id=pci.2,bus=pci.1,addr=0x0 \
-device ioh3420,port=0x8,chassis=3,id=pci.3,bus=pcie.0,addr=0x1 \
-device ich9-usb-ehci1,id=usb,bus=pcie.0,addr=0x1d.0x7 \
-device ich9-usb-uhci1,masterbus=usb.0,firstport=0,bus=pcie.0,multifunction=on,\
addr=0x1d \
-device ich9-usb-uhci2,masterbus=usb.0,firstport=2,bus=pcie.0,addr=0x1d.0x1 \
-device ich9-usb-uhci3,masterbus=usb.0,firstport=4,bus=pcie.0,addr=0x1d.0x2 \
-device virtio-balloon-pci,id=balloon0,bus=pci.2,addr=0x1 \
-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,\
resourcecontrol=deny \
-msg timestamp=on

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@ -0,0 +1,68 @@
<domain type='kvm'>
<name>fedora</name>
<uuid>63840878-0deb-4095-97e6-fc444d9bc9fa</uuid>
<memory unit='KiB'>8192</memory>
<currentMemory unit='KiB'>8192</currentMemory>
<vcpu placement='static'>1</vcpu>
<os firmware='bios'>
<type arch='x86_64' machine='pc-q35-4.0'>hvm</type>
<loader secure='no'/>
<nvram>/var/lib/libvirt/qemu/nvram/fedora_VARS.fd</nvram>
<boot dev='hd'/>
<bootmenu enable='yes'/>
</os>
<features>
<acpi/>
<apic/>
<pae/>
</features>
<clock offset='utc'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>restart</on_crash>
<pm>
<suspend-to-mem enabled='yes'/>
<suspend-to-disk enabled='no'/>
</pm>
<devices>
<emulator>/usr/bin/qemu-system-x86_64</emulator>
<controller type='usb' index='0' model='ich9-ehci1'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x1d' function='0x7'/>
</controller>
<controller type='usb' index='0' model='ich9-uhci1'>
<master startport='0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x1d' function='0x0' multifunction='on'/>
</controller>
<controller type='usb' index='0' model='ich9-uhci2'>
<master startport='2'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x1d' function='0x1'/>
</controller>
<controller type='usb' index='0' model='ich9-uhci3'>
<master startport='4'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x1d' function='0x2'/>
</controller>
<controller type='sata' index='0'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/>
</controller>
<controller type='pci' index='0' model='pcie-root'/>
<controller type='pci' index='1' model='dmi-to-pci-bridge'>
<model name='i82801b11-bridge'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x1e' function='0x0'/>
</controller>
<controller type='pci' index='2' model='pci-bridge'>
<model name='pci-bridge'/>
<target chassisNr='2'/>
<address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
</controller>
<controller type='pci' index='3' model='pcie-root-port'>
<model name='ioh3420'/>
<target chassis='3' port='0x8'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0'/>
</controller>
<input type='mouse' bus='ps2'/>
<input type='keyboard' bus='ps2'/>
<memballoon model='virtio'>
<address type='pci' domain='0x0000' bus='0x02' slot='0x01' function='0x0'/>
</memballoon>
</devices>
</domain>

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@ -0,0 +1,43 @@
LC_ALL=C \
PATH=/bin \
HOME=/home/test \
USER=test \
LOGNAME=test \
QEMU_AUDIO_DRV=none \
/usr/bin/qemu-system-x86_64 \
-name guest=fedora,debug-threads=on \
-S \
-object secret,id=masterKey0,format=raw,\
file=/tmp/lib/domain--1-fedora/master-key.aes \
-machine pc-q35-4.0,accel=kvm,usb=off,smm=on,dump-guest-core=off \
-global driver=cfi.pflash01,property=secure,value=on \
-drive file=/usr/share/OVMF/OVMF_CODE.secboot.fd,if=pflash,format=raw,unit=0,\
readonly=on \
-drive file=/var/lib/libvirt/qemu/nvram/fedora_VARS.fd,if=pflash,format=raw,\
unit=1 \
-m 8 \
-realtime mlock=off \
-smp 1,sockets=1,cores=1,threads=1 \
-uuid 63840878-0deb-4095-97e6-fc444d9bc9fa \
-display none \
-no-user-config \
-nodefaults \
-chardev socket,id=charmonitor,fd=1729,server,nowait \
-mon chardev=charmonitor,id=monitor,mode=control \
-rtc base=utc \
-no-shutdown \
-global ICH9-LPC.disable_s3=0 \
-global ICH9-LPC.disable_s4=1 \
-boot menu=on,strict=on \
-device i82801b11-bridge,id=pci.1,bus=pcie.0,addr=0x1e \
-device pci-bridge,chassis_nr=2,id=pci.2,bus=pci.1,addr=0x0 \
-device ioh3420,port=0x8,chassis=3,id=pci.3,bus=pcie.0,addr=0x1 \
-device ich9-usb-ehci1,id=usb,bus=pcie.0,addr=0x1d.0x7 \
-device ich9-usb-uhci1,masterbus=usb.0,firstport=0,bus=pcie.0,multifunction=on,\
addr=0x1d \
-device ich9-usb-uhci2,masterbus=usb.0,firstport=2,bus=pcie.0,addr=0x1d.0x1 \
-device ich9-usb-uhci3,masterbus=usb.0,firstport=4,bus=pcie.0,addr=0x1d.0x2 \
-device virtio-balloon-pci,id=balloon0,bus=pci.2,addr=0x1 \
-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,\
resourcecontrol=deny \
-msg timestamp=on

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@ -0,0 +1,68 @@
<domain type='kvm'>
<name>fedora</name>
<uuid>63840878-0deb-4095-97e6-fc444d9bc9fa</uuid>
<memory unit='KiB'>8192</memory>
<currentMemory unit='KiB'>8192</currentMemory>
<vcpu placement='static'>1</vcpu>
<os firmware='efi'>
<type arch='x86_64' machine='pc-q35-4.0'>hvm</type>
<loader secure='yes'/>
<nvram>/var/lib/libvirt/qemu/nvram/fedora_VARS.fd</nvram>
<boot dev='hd'/>
<bootmenu enable='yes'/>
</os>
<features>
<acpi/>
<apic/>
<pae/>
</features>
<clock offset='utc'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>restart</on_crash>
<pm>
<suspend-to-mem enabled='yes'/>
<suspend-to-disk enabled='no'/>
</pm>
<devices>
<emulator>/usr/bin/qemu-system-x86_64</emulator>
<controller type='usb' index='0' model='ich9-ehci1'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x1d' function='0x7'/>
</controller>
<controller type='usb' index='0' model='ich9-uhci1'>
<master startport='0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x1d' function='0x0' multifunction='on'/>
</controller>
<controller type='usb' index='0' model='ich9-uhci2'>
<master startport='2'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x1d' function='0x1'/>
</controller>
<controller type='usb' index='0' model='ich9-uhci3'>
<master startport='4'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x1d' function='0x2'/>
</controller>
<controller type='sata' index='0'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/>
</controller>
<controller type='pci' index='0' model='pcie-root'/>
<controller type='pci' index='1' model='dmi-to-pci-bridge'>
<model name='i82801b11-bridge'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x1e' function='0x0'/>
</controller>
<controller type='pci' index='2' model='pci-bridge'>
<model name='pci-bridge'/>
<target chassisNr='2'/>
<address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
</controller>
<controller type='pci' index='3' model='pcie-root-port'>
<model name='ioh3420'/>
<target chassis='3' port='0x8'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0'/>
</controller>
<input type='mouse' bus='ps2'/>
<input type='keyboard' bus='ps2'/>
<memballoon model='virtio'>
<address type='pci' domain='0x0000' bus='0x02' slot='0x01' function='0x0'/>
</memballoon>
</devices>
</domain>

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@ -0,0 +1,42 @@
LC_ALL=C \
PATH=/bin \
HOME=/home/test \
USER=test \
LOGNAME=test \
QEMU_AUDIO_DRV=none \
/usr/bin/qemu-system-x86_64 \
-name guest=fedora,debug-threads=on \
-S \
-object secret,id=masterKey0,format=raw,\
file=/tmp/lib/domain--1-fedora/master-key.aes \
-machine pc-q35-4.0,accel=kvm,usb=off,smm=on,dump-guest-core=off \
-drive file=/usr/share/OVMF/OVMF_CODE.secboot.fd,if=pflash,format=raw,unit=0,\
readonly=on \
-drive file=/var/lib/libvirt/qemu/nvram/fedora_VARS.fd,if=pflash,format=raw,\
unit=1 \
-m 8 \
-realtime mlock=off \
-smp 1,sockets=1,cores=1,threads=1 \
-uuid 63840878-0deb-4095-97e6-fc444d9bc9fa \
-display none \
-no-user-config \
-nodefaults \
-chardev socket,id=charmonitor,fd=1729,server,nowait \
-mon chardev=charmonitor,id=monitor,mode=control \
-rtc base=utc \
-no-shutdown \
-global ICH9-LPC.disable_s3=0 \
-global ICH9-LPC.disable_s4=1 \
-boot menu=on,strict=on \
-device i82801b11-bridge,id=pci.1,bus=pcie.0,addr=0x1e \
-device pci-bridge,chassis_nr=2,id=pci.2,bus=pci.1,addr=0x0 \
-device ioh3420,port=0x8,chassis=3,id=pci.3,bus=pcie.0,addr=0x1 \
-device ich9-usb-ehci1,id=usb,bus=pcie.0,addr=0x1d.0x7 \
-device ich9-usb-uhci1,masterbus=usb.0,firstport=0,bus=pcie.0,multifunction=on,\
addr=0x1d \
-device ich9-usb-uhci2,masterbus=usb.0,firstport=2,bus=pcie.0,addr=0x1d.0x1 \
-device ich9-usb-uhci3,masterbus=usb.0,firstport=4,bus=pcie.0,addr=0x1d.0x2 \
-device virtio-balloon-pci,id=balloon0,bus=pci.2,addr=0x1 \
-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,\
resourcecontrol=deny \
-msg timestamp=on

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@ -0,0 +1,68 @@
<domain type='kvm'>
<name>fedora</name>
<uuid>63840878-0deb-4095-97e6-fc444d9bc9fa</uuid>
<memory unit='KiB'>8192</memory>
<currentMemory unit='KiB'>8192</currentMemory>
<vcpu placement='static'>1</vcpu>
<os firmware='efi'>
<type arch='x86_64' machine='pc-q35-4.0'>hvm</type>
<loader secure='no'/>
<nvram>/var/lib/libvirt/qemu/nvram/fedora_VARS.fd</nvram>
<boot dev='hd'/>
<bootmenu enable='yes'/>
</os>
<features>
<acpi/>
<apic/>
<pae/>
</features>
<clock offset='utc'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>restart</on_crash>
<pm>
<suspend-to-mem enabled='yes'/>
<suspend-to-disk enabled='no'/>
</pm>
<devices>
<emulator>/usr/bin/qemu-system-x86_64</emulator>
<controller type='usb' index='0' model='ich9-ehci1'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x1d' function='0x7'/>
</controller>
<controller type='usb' index='0' model='ich9-uhci1'>
<master startport='0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x1d' function='0x0' multifunction='on'/>
</controller>
<controller type='usb' index='0' model='ich9-uhci2'>
<master startport='2'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x1d' function='0x1'/>
</controller>
<controller type='usb' index='0' model='ich9-uhci3'>
<master startport='4'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x1d' function='0x2'/>
</controller>
<controller type='sata' index='0'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/>
</controller>
<controller type='pci' index='0' model='pcie-root'/>
<controller type='pci' index='1' model='dmi-to-pci-bridge'>
<model name='i82801b11-bridge'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x1e' function='0x0'/>
</controller>
<controller type='pci' index='2' model='pci-bridge'>
<model name='pci-bridge'/>
<target chassisNr='2'/>
<address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
</controller>
<controller type='pci' index='3' model='pcie-root-port'>
<model name='ioh3420'/>
<target chassis='3' port='0x8'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0'/>
</controller>
<input type='mouse' bus='ps2'/>
<input type='keyboard' bus='ps2'/>
<memballoon model='virtio'>
<address type='pci' domain='0x0000' bus='0x02' slot='0x01' function='0x0'/>
</memballoon>
</devices>
</domain>

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@ -23,6 +23,8 @@
# include "virstring.h"
# include "storage/storage_driver.h"
# include "virmock.h"
# include "virfilewrapper.h"
# include "configmake.h"
# define LIBVIRT_QEMU_CAPSPRIV_H_ALLOW
# include "qemu/qemu_capspriv.h"
@ -705,6 +707,9 @@ mymain(void)
VIR_FREE(driver.config->memoryBackingDir);
if (VIR_STRDUP_QUIET(driver.config->memoryBackingDir, "/var/lib/libvirt/qemu/ram") < 0)
return EXIT_FAILURE;
VIR_FREE(driver.config->nvramDir);
if (VIR_STRDUP(driver.config->nvramDir, "/var/lib/libvirt/qemu/nvram") < 0)
return EXIT_FAILURE;
capslatest = virHashCreate(4, virHashValueFree);
if (!capslatest)
@ -724,6 +729,13 @@ mymain(void)
VIR_TEST_VERBOSE("\n");
virFileWrapperAddPrefix(SYSCONFDIR "/qemu/firmware",
abs_srcdir "/qemufirmwaredata/etc/qemu/firmware");
virFileWrapperAddPrefix(PREFIX "/share/qemu/firmware",
abs_srcdir "/qemufirmwaredata/usr/share/qemu/firmware");
virFileWrapperAddPrefix("/home/user/.config/qemu/firmware",
abs_srcdir "/qemufirmwaredata/home/user/.config/qemu/firmware");
/**
* The following set of macros allows testing of XML -> argv conversion with a
* real set of capabilities gathered from a real qemu copy. It is desired to use
@ -3020,6 +3032,11 @@ mymain(void)
DO_TEST_CAPS_ARCH_LATEST("x86_64-pc-graphics", "x86_64");
DO_TEST_CAPS_ARCH_LATEST("x86_64-q35-graphics", "x86_64");
DO_TEST_CAPS_LATEST("os-firmware-bios");
DO_TEST_CAPS_LATEST("os-firmware-efi");
DO_TEST_CAPS_LATEST("os-firmware-efi-secboot");
DO_TEST_CAPS_ARCH_LATEST("aarch64-os-firmware-efi", "aarch64");
if (getenv("LIBVIRT_SKIP_CLEANUP") == NULL)
virFileDeleteTree(fakerootdir);

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@ -0,0 +1 @@
../qemuxml2argvdata/aarch64-os-firmware-efi.xml

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@ -0,0 +1 @@
../qemuxml2argvdata/os-firmware-bios.xml

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@ -0,0 +1 @@
../qemuxml2argvdata/os-firmware-efi-secboot.xml

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@ -0,0 +1 @@
../qemuxml2argvdata/os-firmware-efi.xml

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@ -1023,9 +1023,36 @@ mymain(void)
DO_TEST("smbios", NONE);
DO_TEST("smbios-multiple-type2", NONE);
DO_TEST("os-firmware-bios",
QEMU_CAPS_DEVICE_PCI_BRIDGE,
QEMU_CAPS_DEVICE_DMI_TO_PCI_BRIDGE,
QEMU_CAPS_DEVICE_IOH3420,
QEMU_CAPS_ICH9_AHCI,
QEMU_CAPS_ICH9_USB_EHCI1,
QEMU_CAPS_DEVICE_VIDEO_PRIMARY,
QEMU_CAPS_DEVICE_QXL);
DO_TEST("os-firmware-efi",
QEMU_CAPS_DEVICE_PCI_BRIDGE,
QEMU_CAPS_DEVICE_DMI_TO_PCI_BRIDGE,
QEMU_CAPS_DEVICE_IOH3420,
QEMU_CAPS_ICH9_AHCI,
QEMU_CAPS_ICH9_USB_EHCI1,
QEMU_CAPS_DEVICE_VIDEO_PRIMARY,
QEMU_CAPS_DEVICE_QXL);
DO_TEST("os-firmware-efi-secboot",
QEMU_CAPS_DEVICE_PCI_BRIDGE,
QEMU_CAPS_DEVICE_DMI_TO_PCI_BRIDGE,
QEMU_CAPS_DEVICE_IOH3420,
QEMU_CAPS_ICH9_AHCI,
QEMU_CAPS_ICH9_USB_EHCI1,
QEMU_CAPS_DEVICE_VIDEO_PRIMARY,
QEMU_CAPS_DEVICE_QXL);
DO_TEST("aarch64-aavmf-virtio-mmio",
QEMU_CAPS_DEVICE_VIRTIO_MMIO,
QEMU_CAPS_DEVICE_VIRTIO_RNG, QEMU_CAPS_OBJECT_RNG_RANDOM);
DO_TEST("aarch64-os-firmware-efi",
QEMU_CAPS_DEVICE_VIRTIO_MMIO);
DO_TEST("aarch64-virtio-pci-default",
QEMU_CAPS_VIRTIO_PCI_DISABLE_LEGACY,
QEMU_CAPS_DEVICE_VIRTIO_MMIO,