Re: [PATCH v5 10/10] tests: extend tests to include sev specific tag parsing

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On 04/02/2018 10:18 AM, Brijesh Singh wrote:
> From: Xiaogang Chen <Xiaogang.Chen@xxxxxxx>
> 
> Update qemuxml2xmltest, genericxml2xmltest and qemuxml2argvtest to include
> sev specific tag, a typical SEV specific tag looks like
> 
> <launch-security type='sev>
>   <cbitpos>47</cbitpos>
>   <reduced-phys-bits>1</reduced-phys-bits>
>   <policy>1</policy>
> </launch-security>
> 
> Signed-off-by: Xiaogang Chen <Xiaogang.Chen@xxxxxxx>
> Signed-off-by: Brijesh Singh <brijesh.singh@xxxxxxx>
> ---
>  tests/genericxml2xmlindata/sev.xml  | 20 +++++++++++++++++++
>  tests/genericxml2xmloutdata/sev.xml | 22 +++++++++++++++++++++
>  tests/genericxml2xmltest.c          |  2 ++
>  tests/qemuxml2argvdata/sev.args     | 24 +++++++++++++++++++++++
>  tests/qemuxml2argvdata/sev.xml      | 35 +++++++++++++++++++++++++++++++++
>  tests/qemuxml2argvtest.c            |  2 ++
>  tests/qemuxml2xmloutdata/sev.xml    | 39 +++++++++++++++++++++++++++++++++++++
>  tests/qemuxml2xmltest.c             |  2 ++
>  8 files changed, 146 insertions(+)
>  create mode 100644 tests/genericxml2xmlindata/sev.xml
>  create mode 100644 tests/genericxml2xmloutdata/sev.xml
>  create mode 100644 tests/qemuxml2argvdata/sev.args
>  create mode 100644 tests/qemuxml2argvdata/sev.xml
>  create mode 100644 tests/qemuxml2xmloutdata/sev.xml
> 

I'll do this one in two phases (and out of order in the review)

This first phase focuses on the xml2xml processing which needs to be
merged into patch3

First rename "sev.xml" to be "launch-security-sev.xml"... Just seeing
'sev' would make me wonder....

> diff --git a/tests/genericxml2xmlindata/sev.xml b/tests/genericxml2xmlindata/sev.xml
> new file mode 100644
> index 0000000..aeb0c6a
> --- /dev/null
> +++ b/tests/genericxml2xmlindata/sev.xml

Rename to launch-security-sev.xml

> @@ -0,0 +1,20 @@
> +<domain type='kvm'>
> +  <name>QEMUGuest1</name>
> +  <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
> +  <memory unit='KiB'>219100</memory>
> +  <currentMemory unit='KiB'>219100</currentMemory>
> +  <vcpu placement='static'>1</vcpu>
> +  <os>
> +    <type arch='x86_64' machine='pc-1.0'>hvm</type>
> +    <boot dev='hd'/>
> +  </os>
> +  <clock offset='utc'/>
> +  <on_poweroff>destroy</on_poweroff>
> +  <on_reboot>restart</on_reboot>
> +  <on_crash>destroy</on_crash>

Add the:

    <devices>
    </devices>

> +  <launch-security type='sev'>
> +    <cbitpos>47</cbitpos>
> +    <reduced-phys-bits>1</reduced-phys-bits>
> +    <policy>1</policy>

Should add some default values - just to prove parsing and formatting
works. I used:


<dh-cert>AQAAAAAOAAAAQAAAAAOAAAAQAAAAAOAAAAQAAAAAOAAAAQAAAAAOAAA</dh-cert>
<session>IHAVENOIDEABUTJUSTPROVIDINGASTRING</session>

> +  </launch-security>
> +</domain>
> diff --git a/tests/genericxml2xmloutdata/sev.xml b/tests/genericxml2xmloutdata/sev.xml
> new file mode 100644
> index 0000000..70065b8
> --- /dev/null
> +++ b/tests/genericxml2xmloutdata/sev.xml

NB: By adding <devices></devices> to the genericxml2xmlindata then it
doesn't seem having a genericxml2xmloutdata file is required...

> @@ -0,0 +1,22 @@
> +<domain type='kvm'>
> +  <name>QEMUGuest1</name>
> +  <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
> +  <memory unit='KiB'>219100</memory>
> +  <currentMemory unit='KiB'>219100</currentMemory>
> +  <vcpu placement='static'>1</vcpu>
> +  <os>
> +    <type arch='x86_64' machine='pc-1.0'>hvm</type>
> +    <boot dev='hd'/>
> +  </os>
> +  <clock offset='utc'/>
> +  <on_poweroff>destroy</on_poweroff>
> +  <on_reboot>restart</on_reboot>
> +  <on_crash>destroy</on_crash>
> +  <devices>
> +  </devices>
> +  <launch-security type='sev'>
> +    <cbitpos>47</cbitpos>
> +    <reduced-phys-bits>1</reduced-phys-bits>
> +    <policy>1</policy>
> +  </launch-security>
> +</domain>
> diff --git a/tests/genericxml2xmltest.c b/tests/genericxml2xmltest.c
> index d8270a6..3b75b43 100644
> --- a/tests/genericxml2xmltest.c
> +++ b/tests/genericxml2xmltest.c
> @@ -141,6 +141,8 @@ mymain(void)
>      DO_TEST_FULL("cachetune-colliding-types", false, true,
>                   TEST_COMPARE_DOM_XML2XML_RESULT_FAIL_PARSE);
>  
> +    DO_TEST_DIFFERENT("sev");
> +

Change the name to 'launch-security-sev'

and I used DO_TEST with just the in file w/ <devices> adjustment and
things were good.  I believe that's the "proper way".

>      virObjectUnref(caps);
>      virObjectUnref(xmlopt);
>  
> diff --git a/tests/qemuxml2argvdata/sev.args b/tests/qemuxml2argvdata/sev.args
> new file mode 100644
> index 0000000..312dbcf
> --- /dev/null
> +++ b/tests/qemuxml2argvdata/sev.args
> @@ -0,0 +1,24 @@
> +LC_ALL=C \
> +PATH=/bin \
> +HOME=/home/test \
> +USER=test \
> +LOGNAME=test \
> +QEMU_AUDIO_DRV=none \
> +/usr/bin/qemu-system-x86_64 \
> +-name QEMUGuest1 \
> +-S \
> +-machine pc-1.0,accel=kvm,memory-encryption=sev0 \
> +-m 214 \
> +-smp 1,sockets=1,cores=1,threads=1 \
> +-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \
> +-nographic \
> +-nodefaults \
> +-chardev socket,id=charmonitor,path=/tmp/lib/domain--1-QEMUGuest1/monitor.sock,\
> +server,nowait \
> +-mon chardev=charmonitor,id=monitor,mode=readline \
> +-no-acpi \
> +-boot c \
> +-usb \
> +-drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-ide0-0-0 \
> +-device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 \
> +-object sev-guest,id=sev0,cbitpos=47,reduced-phys-bits=1,policy=0x1
> diff --git a/tests/qemuxml2argvdata/sev.xml b/tests/qemuxml2argvdata/sev.xml
> new file mode 100644
> index 0000000..2476b58
> --- /dev/null
> +++ b/tests/qemuxml2argvdata/sev.xml

Rename to launch-security-sev.xml

> @@ -0,0 +1,35 @@
> +<domain type='kvm'>
> +  <name>QEMUGuest1</name>
> +  <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
> +  <memory unit='KiB'>219100</memory>
> +  <currentMemory unit='KiB'>219100</currentMemory>
> +  <vcpu placement='static'>1</vcpu>
> +  <os>
> +    <type arch='x86_64' machine='pc-1.0'>hvm</type>
> +    <boot dev='hd'/>
> +  </os>
> +  <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>
> +    <disk type='block' device='disk'>
> +      <driver name='qemu' type='raw'/>
> +      <source dev='/dev/HostVG/QEMUGuest1'/>
> +      <target dev='hda' bus='ide'/>
> +      <address type='drive' controller='0' bus='0' target='0' unit='0'/>
> +    </disk>
> +    <controller type='usb' index='0'/>
> +    <controller type='ide' index='0'/>
> +    <controller type='pci' index='0' model='pci-root'/>
> +    <input type='mouse' bus='ps2'/>
> +    <input type='keyboard' bus='ps2'/>
> +    <memballoon model='none'/>
> +  </devices>
> +  <launch-security type='sev'>
> +    <cbitpos>47</cbitpos>
> +    <reduced-phys-bits>1</reduced-phys-bits>
> +    <policy>1</policy>

Similar to above add the fields to prove parse/format:

<dh-cert>AQAAAAAOAAAAQAAAAAOAAAAQAAAAAOAAAAQAAAAAOAAAAQAAAAAOAAA</dh-cert>
<session>IHAVENOIDEABUTJUSTPROVIDINGASTRING</session>

> +  </launch-security>
> +</domain>
> diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
> index 308d71f..de0ac58 100644
> --- a/tests/qemuxml2argvtest.c
> +++ b/tests/qemuxml2argvtest.c
> @@ -3023,6 +3023,8 @@ mymain(void)
>              QEMU_CAPS_DEVICE_VIRTIO_MOUSE_CCW,
>              QEMU_CAPS_DEVICE_VIRTIO_TABLET_CCW);
>  
> +    DO_TEST("sev", QEMU_CAPS_MACHINE_OPT, QEMU_CAPS_KVM, QEMU_CAPS_SEV_GUEST);
> +
>      if (getenv("LIBVIRT_SKIP_CLEANUP") == NULL)
>          virFileDeleteTree(fakerootdir);
>  
> diff --git a/tests/qemuxml2xmloutdata/sev.xml b/tests/qemuxml2xmloutdata/sev.xml
> new file mode 100644
> index 0000000..80017fe
> --- /dev/null
> +++ b/tests/qemuxml2xmloutdata/sev.xml

Change the name to launch-security-sev.xml

> @@ -0,0 +1,39 @@
> +<domain type='kvm'>
> +  <name>QEMUGuest1</name>
> +  <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
> +  <memory unit='KiB'>219100</memory>
> +  <currentMemory unit='KiB'>219100</currentMemory>
> +  <vcpu placement='static'>1</vcpu>
> +  <os>
> +    <type arch='x86_64' machine='pc-1.0'>hvm</type>
> +    <boot dev='hd'/>
> +  </os>
> +  <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>
> +    <disk type='block' device='disk'>
> +      <driver name='qemu' type='raw'/>
> +      <source dev='/dev/HostVG/QEMUGuest1'/>
> +      <target dev='hda' bus='ide'/>
> +      <address type='drive' controller='0' bus='0' target='0' unit='0'/>
> +    </disk>
> +    <controller type='usb' index='0'>
> +      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
> +    </controller>
> +    <controller type='ide' index='0'>
> +      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
> +    </controller>
> +    <controller type='pci' index='0' model='pci-root'/>
> +    <input type='mouse' bus='ps2'/>
> +    <input type='keyboard' bus='ps2'/>
> +    <memballoon model='none'/>
> +  </devices>
> +  <launch-security type='sev'>
> +    <cbitpos>47</cbitpos>
> +    <reduced-phys-bits>1</reduced-phys-bits>
> +    <policy>1</policy>

Similar to above add the fields to prove parse/format:

<dh-cert>AQAAAAAOAAAAQAAAAAOAAAAQAAAAAOAAAAQAAAAAOAAAAQAAAAAOAAA</dh-cert>
<session>IHAVENOIDEABUTJUSTPROVIDINGASTRING</session>

> +  </launch-security>
> +</domain>
> diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c
> index 0f56029..328ef66 100644
> --- a/tests/qemuxml2xmltest.c
> +++ b/tests/qemuxml2xmltest.c
> @@ -1265,6 +1265,8 @@ mymain(void)
>      DO_TEST_STATUS("modern");
>      DO_TEST_STATUS("migration-out-nbd");
>  
> +    DO_TEST("sev", NONE);
> +

Change the name to launch-security-sev *and* move this up before the
#define DO_TEST_STATUS


John

>      if (getenv("LIBVIRT_SKIP_CLEANUP") == NULL)
>          virFileDeleteTree(fakerootdir);
>  
> 

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