qemu: Add support for EOI with APIC

This patch adds full support for EOI setting for domains. Because this
is CPU feature (flag), the model needs to be added even when it's not
specified. Fortunately this problem was already solved with kvmclock,
so this patch simply abuses that.

And due to the size of the patch (17 lines) I dared to include the tests.
上级 4a8b7cba
......@@ -4234,6 +4234,18 @@ qemuBuildCpuArgStr(const struct qemud_driver *driver,
}
}
if (def->apic_eoi) {
char sign;
if (def->apic_eoi == VIR_DOMAIN_APIC_EOI_ON)
sign = '+';
else
sign = '-';
virBufferAsprintf(&buf, "%s,%ckvm_pv_eoi",
have_cpu ? "" : default_model,
sign);
}
if (virBufferError(&buf))
goto no_memory;
......@@ -7691,6 +7703,11 @@ qemuParseCommandLineCPU(virDomainDefPtr dom,
}
dom->clock.timers[i]->present = present;
ret = 0;
} else if (STREQ(feature, "kvm_pv_eoi")) {
if (policy == VIR_CPU_FEATURE_REQUIRE)
dom->apic_eoi = VIR_DOMAIN_APIC_EOI_ON;
else
dom->apic_eoi = VIR_DOMAIN_APIC_EOI_OFF;
} else {
if (!cpu) {
if (!(cpu = qemuInitGuestCPU(dom)))
......
LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test ./qemu.sh -S -M pc \
-cpu qemu32,-kvm_pv_eoi -m 214 -smp 6 -nographic -monitor \
unix:/tmp/test-monitor,server,nowait -boot n -net none -serial none \
-parallel none -usb
<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='i686' machine='pc'>hvm</type>
<boot dev='network'/>
</os>
<features>
<acpi/>
<apic eoi='off'/>
<pae/>
</features>
<cpu mode='custom' match='exact'>
<model fallback='allow'>qemu32</model>
</cpu>
<clock offset='utc'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>destroy</on_crash>
<devices>
<emulator>/./qemu.sh</emulator>
<controller type='usb' index='0'/>
<memballoon model='virtio'/>
</devices>
</domain>
LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test ./qemu.sh -S -M pc \
-cpu qemu32,+kvm_pv_eoi -m 214 -smp 6 -nographic -monitor \
unix:/tmp/test-monitor,server,nowait -boot n -net none -serial none \
-parallel none -usb
<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='i686' machine='pc'>hvm</type>
<boot dev='network'/>
</os>
<features>
<acpi/>
<apic eoi='on'/>
<pae/>
</features>
<cpu mode='custom' match='exact'>
<model fallback='allow'>qemu32</model>
</cpu>
<clock offset='utc'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>destroy</on_crash>
<devices>
<emulator>/./qemu.sh</emulator>
<controller type='usb' index='0'/>
<memballoon model='virtio'/>
</devices>
</domain>
LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test ./qemu.sh -S -M pc \
-cpu qemu32,-kvm_pv_eoi -m 214 -smp 6 -nographic -monitor \
unix:/tmp/test-monitor,server,nowait -boot n -net none -serial \
none -parallel none -usb
<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='i686' machine='pc'>hvm</type>
<boot dev='network'/>
</os>
<features>
<acpi/>
<apic eoi='off'/>
<pae/>
</features>
<clock offset='utc'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>destroy</on_crash>
<devices>
<emulator>/./qemu.sh</emulator>
<controller type='usb' index='0'/>
<memballoon model='virtio'/>
</devices>
</domain>
LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test ./qemu.sh -S -M pc \
-cpu qemu32,+kvm_pv_eoi -m 214 -smp 6 -nographic -monitor \
unix:/tmp/test-monitor,server,nowait -boot n -net none -serial \
none -parallel none -usb
<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='i686' machine='pc'>hvm</type>
<boot dev='network'/>
</os>
<features>
<acpi/>
<apic eoi='on'/>
<pae/>
</features>
<clock offset='utc'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>destroy</on_crash>
<devices>
<emulator>/./qemu.sh</emulator>
<controller type='usb' index='0'/>
<memballoon model='virtio'/>
</devices>
</domain>
......@@ -385,6 +385,11 @@ mymain(void)
DO_TEST("cpu-host-kvmclock", QEMU_CAPS_ENABLE_KVM, QEMU_CAPS_CPU_HOST);
DO_TEST("kvmclock", QEMU_CAPS_KVM);
DO_TEST("cpu-eoi-disabled", QEMU_CAPS_ENABLE_KVM);
DO_TEST("cpu-eoi-enabled", QEMU_CAPS_ENABLE_KVM);
DO_TEST("eoi-disabled", NONE);
DO_TEST("eoi-enabled", NONE);
DO_TEST("hugepages", QEMU_CAPS_MEM_PATH);
DO_TEST("disk-cdrom", NONE);
DO_TEST("disk-cdrom-empty", QEMU_CAPS_DRIVE);
......
......@@ -138,6 +138,12 @@ mymain(void)
DO_TEST("cpu-kvmclock");
DO_TEST("cpu-host-kvmclock");
DO_TEST("kvmclock");
DO_TEST("cpu-eoi-disabled");
DO_TEST("cpu-eoi-enabled");
DO_TEST("eoi-disabled");
DO_TEST("eoi-enabled");
DO_TEST("hugepages");
DO_TEST("disk-aio");
DO_TEST("disk-cdrom");
......
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