8:15 a.m.
Add support to specify a boot order on vfio-ccw passthrough devices.
Signed-off-by: Boris Fiuczynski <fiuczy(a)linux.ibm.com>
Acked-by: Jason J. Herne <jjherne(a)linux.ibm.com>
Reviewed-by: Marc Hartmayer <mhartmay(a)linux.ibm.com>
---
src/qemu/qemu_command.c | 27 +++++++++++++----
.../hostdev-subsys-mdev-vfio-ccw-boot.args | 29 +++++++++++++++++++
.../hostdev-subsys-mdev-vfio-ccw-boot.xml | 23 +++++++++++++++
tests/qemuxml2argvtest.c | 4 +++
4 files changed, 78 insertions(+), 5 deletions(-)
create mode 100644 tests/qemuxml2argvdata/hostdev-subsys-mdev-vfio-ccw-boot.args
create mode 100644 tests/qemuxml2argvdata/hostdev-subsys-mdev-vfio-ccw-boot.xml
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index fee51158a9..36138e2ccf 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -5613,6 +5613,9 @@ qemuBuildHostdevMediatedDevStr(const virDomainDef *def,
if (qemuBuildDeviceAddressStr(&buf, def, dev->info, qemuCaps) < 0)
goto cleanup;
+ if (dev->info->bootIndex)
+ virBufferAsprintf(&buf, ",bootindex=%u",
dev->info->bootIndex);
+
if (virBufferCheckError(&buf) < 0)
goto cleanup;
@@ -5624,6 +5627,22 @@ qemuBuildHostdevMediatedDevStr(const virDomainDef *def,
return ret;
}
+static bool
+qemuHostdevSupportsBoot(virDomainHostdevDefPtr hostdev)
+{
+ if (hostdev->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS) {
+ virDomainHostdevSubsysPtr subsys = &hostdev->source.subsys;
+ if (subsys->type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI ||
+ subsys->type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB ||
+ subsys->type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI ||
+ (subsys->type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_MDEV &&
+ subsys->u.mdev.model == VIR_MDEV_MODEL_TYPE_VFIO_CCW)) {
+ return true;
+ }
+ }
+ return false;
+}
+
static int
qemuBuildHostdevCommandLine(virCommandPtr cmd,
const virDomainDef *def,
@@ -5638,13 +5657,11 @@ qemuBuildHostdevCommandLine(virCommandPtr cmd,
char *devstr;
if (hostdev->info->bootIndex) {
- if (hostdev->mode != VIR_DOMAIN_HOSTDEV_MODE_SUBSYS ||
- (subsys->type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI &&
- subsys->type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB &&
- subsys->type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI)) {
+ if (!qemuHostdevSupportsBoot(hostdev)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("booting from assigned devices is only "
- "supported for PCI, USB and SCSI devices"));
+ "supported for PCI, USB, SCSI and MDEV "
+ "of model vfio-ccw devices"));
return -1;
}
}
diff --git a/tests/qemuxml2argvdata/hostdev-subsys-mdev-vfio-ccw-boot.args
b/tests/qemuxml2argvdata/hostdev-subsys-mdev-vfio-ccw-boot.args
new file mode 100644
index 0000000000..6fb22b3014
--- /dev/null
+++ b/tests/qemuxml2argvdata/hostdev-subsys-mdev-vfio-ccw-boot.args
@@ -0,0 +1,29 @@
+LC_ALL=C \
+PATH=/bin \
+HOME=/tmp/lib/domain--1-QEMUGuest1 \
+USER=test \
+LOGNAME=test \
+XDG_DATA_HOME=/tmp/lib/domain--1-QEMUGuest1/.local/share \
+XDG_CACHE_HOME=/tmp/lib/domain--1-QEMUGuest1/.cache \
+XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
+QEMU_AUDIO_DRV=none \
+/usr/bin/qemu-system-s390x \
+-name QEMUGuest1 \
+-S \
+-machine s390-ccw-virtio,accel=tcg,usb=off,dump-guest-core=off \
+-m 512 \
+-realtime mlock=off \
+-smp 2,sockets=2,cores=1,threads=1 \
+-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \
+-display none \
+-no-user-config \
+-nodefaults \
+-chardev socket,id=charmonitor,path=/tmp/lib/domain--1-QEMUGuest1/monitor.sock,\
+server,nowait \
+-mon chardev=charmonitor,id=monitor,mode=control \
+-rtc base=utc \
+-no-shutdown \
+-device vfio-ccw,id=hostdev0,\
+sysfsdev=/sys/bus/mdev/devices/90c6c135-ad44-41d0-b1b7-bae47de48627,\
+devno=fe.0.0000,bootindex=1 \
+-device virtio-balloon-ccw,id=balloon0,devno=fe.0.0001
diff --git a/tests/qemuxml2argvdata/hostdev-subsys-mdev-vfio-ccw-boot.xml
b/tests/qemuxml2argvdata/hostdev-subsys-mdev-vfio-ccw-boot.xml
new file mode 100644
index 0000000000..6cca13c33f
--- /dev/null
+++ b/tests/qemuxml2argvdata/hostdev-subsys-mdev-vfio-ccw-boot.xml
@@ -0,0 +1,23 @@
+<domain type='qemu'>
+ <name>QEMUGuest1</name>
+ <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
+ <memory unit='KiB'>524288</memory>
+ <currentMemory unit='KiB'>524288</currentMemory>
+ <vcpu placement='static'>2</vcpu>
+ <os>
+ <type arch='s390x' machine='s390-ccw-virtio'>hvm</type>
+ </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-s390x</emulator>
+ <hostdev mode='subsystem' type='mdev'
model='vfio-ccw'>
+ <source>
+ <address uuid='90c6c135-ad44-41d0-b1b7-bae47de48627'/>
+ </source>
+ <boot order='1'/>
+ </hostdev>
+ </devices>
+</domain>
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index c166fd18d6..c30a0c74ca 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -1621,6 +1621,10 @@ mymain(void)
QEMU_CAPS_CCW,
QEMU_CAPS_CCW_CSSID_UNRESTRICTED,
QEMU_CAPS_DEVICE_VFIO_CCW);
+ DO_TEST("hostdev-subsys-mdev-vfio-ccw-boot",
+ QEMU_CAPS_CCW,
+ QEMU_CAPS_CCW_CSSID_UNRESTRICTED,
+ QEMU_CAPS_DEVICE_VFIO_CCW);
DO_TEST_FAILURE("hostdev-subsys-mdev-vfio-ccw",
QEMU_CAPS_CCW,
QEMU_CAPS_CCW_CSSID_UNRESTRICTED);
--
2.17.0
8:30 a.m.
On Fri, Aug 02, 2019 at 15:15:59 +0200, Boris Fiuczynski wrote:
Add support to specify a boot order on vfio-ccw passthrough devices.
Signed-off-by: Boris Fiuczynski <fiuczy(a)linux.ibm.com>
Acked-by: Jason J. Herne <jjherne(a)linux.ibm.com>
Reviewed-by: Marc Hartmayer <mhartmay(a)linux.ibm.com>
---
src/qemu/qemu_command.c | 27 +++++++++++++----
.../hostdev-subsys-mdev-vfio-ccw-boot.args | 29 +++++++++++++++++++
.../hostdev-subsys-mdev-vfio-ccw-boot.xml | 23 +++++++++++++++
tests/qemuxml2argvtest.c | 4 +++
4 files changed, 78 insertions(+), 5 deletions(-)
create mode 100644 tests/qemuxml2argvdata/hostdev-subsys-mdev-vfio-ccw-boot.args
create mode 100644 tests/qemuxml2argvdata/hostdev-subsys-mdev-vfio-ccw-boot.xml
Note that I don't currently have enough information to verify that the
mdev claim is correct (e.g. why it's only with CCW devices?), but I have
two formal comments:
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index fee51158a9..36138e2ccf 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -5613,6 +5613,9 @@ qemuBuildHostdevMediatedDevStr(const virDomainDef *def,
if (qemuBuildDeviceAddressStr(&buf, def, dev->info, qemuCaps) < 0)
goto cleanup;
+ if (dev->info->bootIndex)
+ virBufferAsprintf(&buf, ",bootindex=%u",
dev->info->bootIndex);
+
if (virBufferCheckError(&buf) < 0)
goto cleanup;
@@ -5624,6 +5627,22 @@ qemuBuildHostdevMediatedDevStr(const virDomainDef *def,
return ret;
}
+static bool
+qemuHostdevSupportsBoot(virDomainHostdevDefPtr hostdev)
Refactor to this function should be separate from the logic change
below.
+{
+ if (hostdev->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS) {
+ virDomainHostdevSubsysPtr subsys = &hostdev->source.subsys;
+ if (subsys->type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI ||
+ subsys->type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB ||
+ subsys->type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI ||
+ (subsys->type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_MDEV &&
+ subsys->u.mdev.model == VIR_MDEV_MODEL_TYPE_VFIO_CCW)) {
This line is misaligned. Please make sure that it's clear that the above
line belongs to the term in the brackets.
+ return true;
+ }
+ }
+ return false;
+}
+
static int
qemuBuildHostdevCommandLine(virCommandPtr cmd,
const virDomainDef *def,
@@ -5638,13 +5657,11 @@ qemuBuildHostdevCommandLine(virCommandPtr cmd,
char *devstr;
if (hostdev->info->bootIndex) {
- if (hostdev->mode != VIR_DOMAIN_HOSTDEV_MODE_SUBSYS ||
- (subsys->type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI &&
- subsys->type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB &&
- subsys->type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI)) {
+ if (!qemuHostdevSupportsBoot(hostdev)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("booting from assigned devices is only "
- "supported for PCI, USB and SCSI devices"));
+ "supported for PCI, USB, SCSI and MDEV "
+ "of model vfio-ccw devices"));
Ideally this validation will be done in the validation callback rather
than in the command line generator. (pre-existing so I don't require you
to refactor this at this time).
Also this error can be probably stashed into qemuHostdevSupportsBoot.
(and name it like qemuHostdevValidateBoot).
9:48 a.m.
On 8/2/19 3:30 PM, Peter Krempa wrote:
On Fri, Aug 02, 2019 at 15:15:59 +0200, Boris Fiuczynski wrote:
> Add support to specify a boot order on vfio-ccw passthrough devices.
>
> Signed-off-by: Boris Fiuczynski <fiuczy(a)linux.ibm.com>
> Acked-by: Jason J. Herne <jjherne(a)linux.ibm.com>
> Reviewed-by: Marc Hartmayer <mhartmay(a)linux.ibm.com>
> ---
> src/qemu/qemu_command.c | 27 +++++++++++++----
> .../hostdev-subsys-mdev-vfio-ccw-boot.args | 29 +++++++++++++++++++
> .../hostdev-subsys-mdev-vfio-ccw-boot.xml | 23 +++++++++++++++
> tests/qemuxml2argvtest.c | 4 +++
> 4 files changed, 78 insertions(+), 5 deletions(-)
> create mode 100644 tests/qemuxml2argvdata/hostdev-subsys-mdev-vfio-ccw-boot.args
> create mode 100644 tests/qemuxml2argvdata/hostdev-subsys-mdev-vfio-ccw-boot.xml
Note that I don't currently have enough information to verify that the
mdev claim is correct (e.g. why it's only with CCW devices?), but I have
two formal comments:
Since I know that on s390 you can boot from a vfio-ccw
mediated device
but not from a vfio-ap mediated device I chose the default as "not
capable to boot from" and check especially for the "known to be capable
to boot from" mdevs. I have no problem changing the logic if desired.
If we want to skip the checking than an qemu internal error like this
occurs:
error: Failed to start domain mini-ap
error: internal error: qemu unexpectedly closed the monitor:
2019-08-05T13:44:27.871697Z qemu-system-s390x: -device
vfio-ap,id=hostdev0,sysfsdev=/sys/bus/mdev/devices/9063cba3-ecef-47b6-abcf-3fef4fdcad85,bootindex=1:
Property '.bootindex' not found
>
> diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
> index fee51158a9..36138e2ccf 100644
> --- a/src/qemu/qemu_command.c
> +++ b/src/qemu/qemu_command.c
> @@ -5613,6 +5613,9 @@ qemuBuildHostdevMediatedDevStr(const virDomainDef *def,
> if (qemuBuildDeviceAddressStr(&buf, def, dev->info, qemuCaps) < 0)
> goto cleanup;
>
> + if (dev->info->bootIndex)
> + virBufferAsprintf(&buf, ",bootindex=%u",
dev->info->bootIndex);
> +
> if (virBufferCheckError(&buf) < 0)
> goto cleanup;
>
> @@ -5624,6 +5627,22 @@ qemuBuildHostdevMediatedDevStr(const virDomainDef *def,
> return ret;
> }
>
> +static bool
> +qemuHostdevSupportsBoot(virDomainHostdevDefPtr hostdev)
Refactor to this function should be separate from the logic change
below.
Agreed.
> +{
> + if (hostdev->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS) {
> + virDomainHostdevSubsysPtr subsys = &hostdev->source.subsys;
> + if (subsys->type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI ||
> + subsys->type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB ||
> + subsys->type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI ||
> + (subsys->type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_MDEV &&
> + subsys->u.mdev.model == VIR_MDEV_MODEL_TYPE_VFIO_CCW)) {
This line is misaligned. Please make sure that it's clear that the above
line belongs to the term in the brackets.
I will fix it.
> + return true;
> + }
> + }
> + return false;
> +}
> +
> static int
> qemuBuildHostdevCommandLine(virCommandPtr cmd,
> const virDomainDef *def,
> @@ -5638,13 +5657,11 @@ qemuBuildHostdevCommandLine(virCommandPtr cmd,
> char *devstr;
>
> if (hostdev->info->bootIndex) {
> - if (hostdev->mode != VIR_DOMAIN_HOSTDEV_MODE_SUBSYS ||
> - (subsys->type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI &&
> - subsys->type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB &&
> - subsys->type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI)) {
> + if (!qemuHostdevSupportsBoot(hostdev)) {
> virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
> _("booting from assigned devices is only
"
> - "supported for PCI, USB and SCSI
devices"));
> + "supported for PCI, USB, SCSI and MDEV "
> + "of model vfio-ccw devices"));
Ideally this validation will be done in the validation callback rather
than in the command line generator. (pre-existing so I don't require you
to refactor this at this time). >
Also this error can be probably stashed into qemuHostdevSupportsBoot.
(and name it like qemuHostdevValidateBoot).
Ok, I will rename the method and move the error report.
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Mit freundlichen Grüßen/Kind regards
Boris Fiuczynski
IBM Deutschland Research & Development GmbH
Vorsitzender des Aufsichtsrats: Matthias Hartmann
Geschäftsführung: Dirk Wittkopp
Sitz der Gesellschaft: Böblingen
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2 comments
2 participants
participants (2)
-
Boris Fiuczynski -
Peter Krempa