[libvirt] [PATCH] drvbhyve: Use boot-order for grub-bhyve boot device
Conrad Meyer
cse.cem at gmail.com
Wed Nov 12 22:31:53 UTC 2014
Rather than just picking the first CD (or failing that, HDD) we come
across, if the user has picked a boot device ordering with <boot
order=''>, respect that (and just try to boot the lowest-index device).
Adds two sets of tests to bhyve2xmlargv; 'grub-bootorder' shows that we
pick a user-specified device over the first device in the domain;
'grub-bootorder2' shows that we pick the first (lowest index) device.
---
This is a follow-up to the 'Add non-FreeBSD guest support to Bhyve driver'
patch series to fix the grub-bhyve automagic configuration to respect <boot
order=''> in the domain. (Requested by both Roman and Michal, I believe.)
---
docs/drvbhyve.html.in | 9 +--
src/bhyve/bhyve_command.c | 64 ++++++++++++++++------
.../bhyvexml2argv-grub-bootorder.args | 6 ++
.../bhyvexml2argv-grub-bootorder.devmap | 1 +
.../bhyvexml2argv-grub-bootorder.ldargs | 2 +
.../bhyvexml2argv-grub-bootorder.xml | 36 ++++++++++++
.../bhyvexml2argv-grub-bootorder2.args | 6 ++
.../bhyvexml2argv-grub-bootorder2.devmap | 1 +
.../bhyvexml2argv-grub-bootorder2.ldargs | 2 +
.../bhyvexml2argv-grub-bootorder2.xml | 38 +++++++++++++
tests/bhyvexml2argvtest.c | 2 +
11 files changed, 146 insertions(+), 21 deletions(-)
create mode 100644 tests/bhyvexml2argvdata/bhyvexml2argv-grub-bootorder.args
create mode 100644 tests/bhyvexml2argvdata/bhyvexml2argv-grub-bootorder.devmap
create mode 100644 tests/bhyvexml2argvdata/bhyvexml2argv-grub-bootorder.ldargs
create mode 100644 tests/bhyvexml2argvdata/bhyvexml2argv-grub-bootorder.xml
create mode 100644 tests/bhyvexml2argvdata/bhyvexml2argv-grub-bootorder2.args
create mode 100644 tests/bhyvexml2argvdata/bhyvexml2argv-grub-bootorder2.devmap
create mode 100644 tests/bhyvexml2argvdata/bhyvexml2argv-grub-bootorder2.ldargs
create mode 100644 tests/bhyvexml2argvdata/bhyvexml2argv-grub-bootorder2.xml
diff --git a/docs/drvbhyve.html.in b/docs/drvbhyve.html.in
index bd4b35e..5479511 100644
--- a/docs/drvbhyve.html.in
+++ b/docs/drvbhyve.html.in
@@ -234,10 +234,11 @@ management.</p>
<p>It's possible to boot non-FreeBSD guests by specifying an explicit
bootloader, e.g. <code>grub-bhyve(1)</code>. Arguments to the bootloader may be
specified as well. If the bootloader is <code>grub-bhyve</code> and arguments
-are omitted, libvirt will try and boot the first disk in the domain (either
-<code>cdrom</code>- or <code>disk</code>-type devices). If the disk type is
-<code>disk</code>, it will attempt to boot from the first partition in the disk
-image.</p>
+are omitted, libvirt will try and infer boot ordering from user-supplied
+<boot order='N'> configuration in the domain. Failing that, it will boot
+the first disk in the domain (either <code>cdrom</code>- or
+<code>disk</code>-type devices). If the disk type is <code>disk</code>, it will
+attempt to boot from the first partition in the disk image.</p>
<pre>
...
diff --git a/src/bhyve/bhyve_command.c b/src/bhyve/bhyve_command.c
index 26d4797..6e3bf03 100644
--- a/src/bhyve/bhyve_command.c
+++ b/src/bhyve/bhyve_command.c
@@ -381,38 +381,62 @@ virBhyveUsableDisk(virConnectPtr conn, virDomainDiskDefPtr disk)
return true;
}
+static void
+virBhyveFormatGrubDevice(virBufferPtr devicemap, virDomainDiskDefPtr def)
+{
+
+ if (def->device == VIR_DOMAIN_DISK_DEVICE_CDROM)
+ virBufferAsprintf(devicemap, "(cd) %s\n",
+ virDomainDiskGetSource(def));
+ else
+ virBufferAsprintf(devicemap, "(hd0) %s\n",
+ virDomainDiskGetSource(def));
+}
+
static virCommandPtr
virBhyveProcessBuildGrubbhyveCmd(virDomainDefPtr def,
virConnectPtr conn,
const char *devmap_file,
char **devicesmap_out)
{
- virDomainDiskDefPtr disk, cd;
+ virDomainDiskDefPtr hdd, cd, userdef, diskdef;
virBuffer devicemap;
virCommandPtr cmd;
+ int best_idx;
size_t i;
if (def->os.bootloaderArgs != NULL)
return virBhyveProcessBuildCustomLoaderCmd(def);
+ best_idx = INT_MAX;
devicemap = (virBuffer)VIR_BUFFER_INITIALIZER;
- /* Search disk list for CD or HDD device. */
- cd = disk = NULL;
+ /* Search disk list for CD or HDD device. We'll respect <boot order=''> if
+ * present and otherwise pick the first CD or failing that HDD we come
+ * across. */
+ cd = hdd = userdef = NULL;
for (i = 0; i < def->ndisks; i++) {
if (!virBhyveUsableDisk(conn, def->disks[i]))
continue;
+ diskdef = def->disks[i];
+
+ if (diskdef->info.bootIndex && diskdef->info.bootIndex < best_idx) {
+ userdef = diskdef;
+ best_idx = userdef->info.bootIndex;
+ continue;
+ }
+
if (cd == NULL &&
def->disks[i]->device == VIR_DOMAIN_DISK_DEVICE_CDROM) {
- cd = def->disks[i];
- VIR_INFO("Picking %s as boot CD", virDomainDiskGetSource(cd));
+ cd = diskdef;
+ VIR_INFO("Picking %s as CD", virDomainDiskGetSource(cd));
}
- if (disk == NULL &&
+ if (hdd == NULL &&
def->disks[i]->device == VIR_DOMAIN_DISK_DEVICE_DISK) {
- disk = def->disks[i];
- VIR_INFO("Picking %s as HDD", virDomainDiskGetSource(disk));
+ hdd = diskdef;
+ VIR_INFO("Picking %s as HDD", virDomainDiskGetSource(hdd));
}
}
@@ -422,22 +446,28 @@ virBhyveProcessBuildGrubbhyveCmd(virDomainDefPtr def,
if (devicesmap_out != NULL) {
/* Grub device.map (just for boot) */
- if (disk != NULL)
- virBufferAsprintf(&devicemap, "(hd0) %s\n",
- virDomainDiskGetSource(disk));
+ if (userdef != NULL) {
+ virBhyveFormatGrubDevice(&devicemap, userdef);
+ } else {
+ if (hdd != NULL)
+ virBhyveFormatGrubDevice(&devicemap, hdd);
- if (cd != NULL)
- virBufferAsprintf(&devicemap, "(cd) %s\n",
- virDomainDiskGetSource(cd));
+ if (cd != NULL)
+ virBhyveFormatGrubDevice(&devicemap, cd);
+ }
*devicesmap_out = virBufferContentAndReset(&devicemap);
}
- if (cd != NULL) {
- virCommandAddArg(cmd, "--root");
+ virCommandAddArg(cmd, "--root");
+ if (userdef != NULL) {
+ if (userdef->device == VIR_DOMAIN_DISK_DEVICE_CDROM)
+ virCommandAddArg(cmd, "cd");
+ else
+ virCommandAddArg(cmd, "hd0,msdos1");
+ } else if (cd != NULL) {
virCommandAddArg(cmd, "cd");
} else {
- virCommandAddArg(cmd, "--root");
virCommandAddArg(cmd, "hd0,msdos1");
}
diff --git a/tests/bhyvexml2argvdata/bhyvexml2argv-grub-bootorder.args b/tests/bhyvexml2argvdata/bhyvexml2argv-grub-bootorder.args
new file mode 100644
index 0000000..eaba370
--- /dev/null
+++ b/tests/bhyvexml2argvdata/bhyvexml2argv-grub-bootorder.args
@@ -0,0 +1,6 @@
+/usr/sbin/bhyve -c 1 -m 214 -H -P -s 0:0,hostbridge \
+-s 3:0,virtio-net,faketapdev,mac=52:54:00:00:00:00 \
+-s 2:0,ahci-hd,/tmp/freebsd1.img \
+-s 2:0,ahci-hd,/tmp/freebsd2.img \
+-s 2:0,ahci-hd,/tmp/freebsd3.img \
+bhyve
diff --git a/tests/bhyvexml2argvdata/bhyvexml2argv-grub-bootorder.devmap b/tests/bhyvexml2argvdata/bhyvexml2argv-grub-bootorder.devmap
new file mode 100644
index 0000000..1be3b50
--- /dev/null
+++ b/tests/bhyvexml2argvdata/bhyvexml2argv-grub-bootorder.devmap
@@ -0,0 +1 @@
+(hd0) /tmp/freebsd3.img
diff --git a/tests/bhyvexml2argvdata/bhyvexml2argv-grub-bootorder.ldargs b/tests/bhyvexml2argvdata/bhyvexml2argv-grub-bootorder.ldargs
new file mode 100644
index 0000000..91c15ce
--- /dev/null
+++ b/tests/bhyvexml2argvdata/bhyvexml2argv-grub-bootorder.ldargs
@@ -0,0 +1,2 @@
+/usr/local/sbin/grub-bhyve --root hd0,msdos1 --device-map '<device.map>' \
+--memory 214 bhyve
diff --git a/tests/bhyvexml2argvdata/bhyvexml2argv-grub-bootorder.xml b/tests/bhyvexml2argvdata/bhyvexml2argv-grub-bootorder.xml
new file mode 100644
index 0000000..e372024
--- /dev/null
+++ b/tests/bhyvexml2argvdata/bhyvexml2argv-grub-bootorder.xml
@@ -0,0 +1,36 @@
+<domain type='bhyve'>
+ <name>bhyve</name>
+ <uuid>df3be7e7-a104-11e3-aeb0-50e5492bd3dc</uuid>
+ <memory>219136</memory>
+ <vcpu>1</vcpu>
+ <bootloader>/usr/local/sbin/grub-bhyve</bootloader>
+ <os>
+ <type>hvm</type>
+ </os>
+ <devices>
+ <disk type='file'>
+ <driver name='file' type='raw'/>
+ <source file='/tmp/freebsd1.img'/>
+ <target dev='hda' bus='sata'/>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
+ </disk>
+ <disk type='file'>
+ <driver name='file' type='raw'/>
+ <source file='/tmp/freebsd2.img'/>
+ <target dev='hda' bus='sata'/>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
+ </disk>
+ <disk type='file'>
+ <driver name='file' type='raw'/>
+ <source file='/tmp/freebsd3.img'/>
+ <target dev='hda' bus='sata'/>
+ <boot order='1'/>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
+ </disk>
+ <interface type='bridge'>
+ <model type='virtio'/>
+ <source bridge="virbr0"/>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
+ </interface>
+ </devices>
+</domain>
diff --git a/tests/bhyvexml2argvdata/bhyvexml2argv-grub-bootorder2.args b/tests/bhyvexml2argvdata/bhyvexml2argv-grub-bootorder2.args
new file mode 100644
index 0000000..eaba370
--- /dev/null
+++ b/tests/bhyvexml2argvdata/bhyvexml2argv-grub-bootorder2.args
@@ -0,0 +1,6 @@
+/usr/sbin/bhyve -c 1 -m 214 -H -P -s 0:0,hostbridge \
+-s 3:0,virtio-net,faketapdev,mac=52:54:00:00:00:00 \
+-s 2:0,ahci-hd,/tmp/freebsd1.img \
+-s 2:0,ahci-hd,/tmp/freebsd2.img \
+-s 2:0,ahci-hd,/tmp/freebsd3.img \
+bhyve
diff --git a/tests/bhyvexml2argvdata/bhyvexml2argv-grub-bootorder2.devmap b/tests/bhyvexml2argvdata/bhyvexml2argv-grub-bootorder2.devmap
new file mode 100644
index 0000000..1be3b50
--- /dev/null
+++ b/tests/bhyvexml2argvdata/bhyvexml2argv-grub-bootorder2.devmap
@@ -0,0 +1 @@
+(hd0) /tmp/freebsd3.img
diff --git a/tests/bhyvexml2argvdata/bhyvexml2argv-grub-bootorder2.ldargs b/tests/bhyvexml2argvdata/bhyvexml2argv-grub-bootorder2.ldargs
new file mode 100644
index 0000000..91c15ce
--- /dev/null
+++ b/tests/bhyvexml2argvdata/bhyvexml2argv-grub-bootorder2.ldargs
@@ -0,0 +1,2 @@
+/usr/local/sbin/grub-bhyve --root hd0,msdos1 --device-map '<device.map>' \
+--memory 214 bhyve
diff --git a/tests/bhyvexml2argvdata/bhyvexml2argv-grub-bootorder2.xml b/tests/bhyvexml2argvdata/bhyvexml2argv-grub-bootorder2.xml
new file mode 100644
index 0000000..8742a30
--- /dev/null
+++ b/tests/bhyvexml2argvdata/bhyvexml2argv-grub-bootorder2.xml
@@ -0,0 +1,38 @@
+<domain type='bhyve'>
+ <name>bhyve</name>
+ <uuid>df3be7e7-a104-11e3-aeb0-50e5492bd3dc</uuid>
+ <memory>219136</memory>
+ <vcpu>1</vcpu>
+ <bootloader>/usr/local/sbin/grub-bhyve</bootloader>
+ <os>
+ <type>hvm</type>
+ </os>
+ <devices>
+ <disk type='file'>
+ <driver name='file' type='raw'/>
+ <source file='/tmp/freebsd1.img'/>
+ <target dev='hda' bus='sata'/>
+ <boot order='111'/>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
+ </disk>
+ <disk type='file'>
+ <driver name='file' type='raw'/>
+ <source file='/tmp/freebsd2.img'/>
+ <target dev='hda' bus='sata'/>
+ <boot order='22'/>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
+ </disk>
+ <disk type='file'>
+ <driver name='file' type='raw'/>
+ <source file='/tmp/freebsd3.img'/>
+ <target dev='hda' bus='sata'/>
+ <boot order='3'/>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
+ </disk>
+ <interface type='bridge'>
+ <model type='virtio'/>
+ <source bridge="virbr0"/>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
+ </interface>
+ </devices>
+</domain>
diff --git a/tests/bhyvexml2argvtest.c b/tests/bhyvexml2argvtest.c
index ec57160..cd3aea0 100644
--- a/tests/bhyvexml2argvtest.c
+++ b/tests/bhyvexml2argvtest.c
@@ -163,6 +163,8 @@ mymain(void)
DO_TEST("serial");
DO_TEST("console");
DO_TEST("grub-defaults");
+ DO_TEST("grub-bootorder");
+ DO_TEST("grub-bootorder2");
DO_TEST("bhyveload-explicitargs");
DO_TEST("custom-loader");
DO_TEST("disk-cdrom-grub");
--
1.9.3
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