From c8aeb07255eb984a89be33ca3a0bafcebe088682 Mon Sep 17 00:00:00 2001
Message-Id: <c8aeb07255eb984a89be33ca3a0bafcebe088682@dist-git>
From: =?UTF-8?q?J=C3=A1n=20Tomko?= <jtomko@redhat.com>
Date: Wed, 8 Jul 2015 15:56:47 +0200
Subject: [PATCH] Explicitly format the isa-fdc controller for newer q35
machines
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Since QEMU commit ea96bc6 [1]:
i386: drop FDC in pc-q35-2.4+ if neither it nor floppy drives are wanted
the floppy controller is no longer implicit.
Specify it explicitly on the command line if the machine type version
is 2.4 or later.
Note that libvirt's floppy drives do not result in QEMU implying the
controller, because libvirt uses if=none instead of if=floppy.
https://bugzilla.redhat.com/show_bug.cgi?id=1227880
[1] http://git.qemu.org/?p=qemu.git;a=commitdiff;h=ea96bc6
(cherry picked from commit 4edf01c92cf9004aac2a505a38d92d13050c24bc)
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
---
src/qemu/qemu_command.c | 31 +++++++++++++----
src/qemu/qemu_domain.c | 19 ++++++++++
src/qemu/qemu_domain.h | 1 +
.../qemuxml2argv-boot-floppy-q35.args | 12 +++++++
.../qemuxml2argv-boot-floppy-q35.xml | 40 ++++++++++++++++++++++
.../qemuxml2argv-bootindex-floppy-q35.args | 11 ++++++
.../qemuxml2argv-bootindex-floppy-q35.xml | 40 ++++++++++++++++++++++
tests/qemuxml2argvtest.c | 9 +++++
8 files changed, 156 insertions(+), 7 deletions(-)
create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-boot-floppy-q35.args
create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-boot-floppy-q35.xml
create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-bootindex-floppy-q35.args
create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-bootindex-floppy-q35.xml
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index d8ce22f..48d2ee0 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -8837,9 +8837,9 @@ qemuBuildCommandLine(virConnectPtr conn,
* List of controller types that we add commandline args for,
* *in the order we want to add them*.
*
- * We don't add an explicit FD controller because the
- * provided PIIX4 device already includes one. It isn't possible to
- * remove the PIIX4.
+ * The floppy controller is implicit on PIIX4 and older Q35
+ * machines. For newer Q35 machines it is added out of the
+ * controllers loop, after the floppy drives.
*
* We don't add PCI/PCIe root controller either, because it's
* implicit, but we do add PCI bridges and other PCI
@@ -8860,6 +8860,8 @@ qemuBuildCommandLine(virConnectPtr conn,
virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
virBuffer boot_buf = VIR_BUFFER_INITIALIZER;
char *boot_order_str = NULL, *boot_opts_str = NULL;
+ virBuffer fdc_opts = VIR_BUFFER_INITIALIZER;
+ char *fdc_opts_str = NULL;
VIR_DEBUG("conn=%p driver=%p def=%p mon=%p json=%d "
"qemuCaps=%p migrateFrom=%s migrateFD=%d "
@@ -9810,8 +9812,12 @@ qemuBuildCommandLine(virConnectPtr conn,
disk->info.alias) < 0)
goto error;
- virCommandAddArg(cmd, "-global");
- virCommandAddArgFormat(cmd, "isa-fdc.%s", optstr);
+ if (!qemuDomainMachineNeedsFDC(def)) {
+ virCommandAddArg(cmd, "-global");
+ virCommandAddArgFormat(cmd, "isa-fdc.%s", optstr);
+ } else {
+ virBufferAsprintf(&fdc_opts, "%s,", optstr);
+ }
VIR_FREE(optstr);
if (bootindex) {
@@ -9821,8 +9827,12 @@ qemuBuildCommandLine(virConnectPtr conn,
bootindex) < 0)
goto error;
- virCommandAddArg(cmd, "-global");
- virCommandAddArgFormat(cmd, "isa-fdc.%s", optstr);
+ if (!qemuDomainMachineNeedsFDC(def)) {
+ virCommandAddArg(cmd, "-global");
+ virCommandAddArgFormat(cmd, "isa-fdc.%s", optstr);
+ } else {
+ virBufferAsprintf(&fdc_opts, "%s,", optstr);
+ }
VIR_FREE(optstr);
}
} else {
@@ -9836,6 +9846,13 @@ qemuBuildCommandLine(virConnectPtr conn,
}
}
}
+ /* Newer Q35 machine types require an explicit FDC controller */
+ virBufferTrim(&fdc_opts, ",", -1);
+ if ((fdc_opts_str = virBufferContentAndReset(&fdc_opts))) {
+ virCommandAddArg(cmd, "-device");
+ virCommandAddArgFormat(cmd, "isa-fdc,%s", fdc_opts_str);
+ VIR_FREE(fdc_opts_str);
+ }
} else {
for (i = 0; i < def->ndisks; i++) {
char dev[NAME_MAX];
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index f9bf32c..6590cf0 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -3245,6 +3245,25 @@ qemuDomainMachineIsI440FX(const virDomainDef *def)
}
+bool
+qemuDomainMachineNeedsFDC(const virDomainDef *def)
+{
+ char *p = STRSKIP(def->os.machine, "pc-q35-");
+
+ if (p) {
+ if (STRPREFIX(p, "1.") ||
+ STRPREFIX(p, "2.0") ||
+ STRPREFIX(p, "2.1") ||
+ STRPREFIX(p, "2.2") ||
+ STRPREFIX(p, "2.3"))
+ return false;
+ return true;
+ }
+ return false;
+}
+
+
+
/**
* qemuDomainUpdateCurrentMemorySize:
*
diff --git a/src/qemu/qemu_domain.h b/src/qemu/qemu_domain.h
index 54e1e7b..66dbcf5 100644
--- a/src/qemu/qemu_domain.h
+++ b/src/qemu/qemu_domain.h
@@ -465,6 +465,7 @@ virDomainChrSourceDefPtr qemuFindAgentConfig(virDomainDefPtr def);
bool qemuDomainMachineIsQ35(const virDomainDef *def);
bool qemuDomainMachineIsI440FX(const virDomainDef *def);
+bool qemuDomainMachineNeedsFDC(const virDomainDef *def);
int qemuDomainUpdateCurrentMemorySize(virQEMUDriverPtr driver,
virDomainObjPtr vm);
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-boot-floppy-q35.args b/tests/qemuxml2argvdata/qemuxml2argv-boot-floppy-q35.args
new file mode 100644
index 0000000..464bfa9
--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-boot-floppy-q35.args
@@ -0,0 +1,12 @@
+LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test QEMU_AUDIO_DRV=none \
+/usr/bin/qemu -S \
+-M pc-q35-2.4 \
+-m 214 -smp 1 \
+-nographic -nodefaults \
+-monitor unix:/tmp/test-monitor,server,nowait \
+-no-acpi -boot a \
+-device i82801b11-bridge,id=pci.1,bus=pcie.0,addr=0x1e \
+-device pci-bridge,chassis_nr=2,id=pci.2,bus=pci.1,addr=0x1 \
+-drive file=/tmp/firmware.img,if=none,id=drive-fdc0-0-0 \
+-device isa-fdc,driveA=drive-fdc0-0-0 \
+-device virtio-balloon-pci,id=balloon0,bus=pci.2,addr=0x3
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-boot-floppy-q35.xml b/tests/qemuxml2argvdata/qemuxml2argv-boot-floppy-q35.xml
new file mode 100644
index 0000000..70d3262
--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-boot-floppy-q35.xml
@@ -0,0 +1,40 @@
+<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'>1</vcpu>
+ <os>
+ <type arch='x86_64' machine='pc-q35-2.4'>hvm</type>
+ <boot dev='fd'/>
+ </os>
+ <clock offset='utc'/>
+ <on_poweroff>destroy</on_poweroff>
+ <on_reboot>restart</on_reboot>
+ <on_crash>destroy</on_crash>
+ <devices>
+ <emulator>/usr/bin/qemu</emulator>
+ <disk type='file' device='floppy'>
+ <driver name='qemu' type='raw'/>
+ <source file='/tmp/firmware.img'/>
+ <target dev='fda' bus='fdc'/>
+ <address type='drive' controller='0' bus='0' target='0' unit='0'/>
+ </disk>
+ <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'>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x1e' function='0x0'/>
+ </controller>
+ <controller type='pci' index='2' model='pci-bridge'>
+ <address type='pci' domain='0x0000' bus='0x01' slot='0x01' function='0x0'/>
+ </controller>
+ <controller type='fdc' index='0'/>
+ <input type='mouse' bus='ps2'/>
+ <input type='keyboard' bus='ps2'/>
+ <memballoon model='virtio'>
+ <address type='pci' domain='0x0000' bus='0x02' slot='0x03' function='0x0'/>
+ </memballoon>
+ </devices>
+</domain>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-bootindex-floppy-q35.args b/tests/qemuxml2argvdata/qemuxml2argv-bootindex-floppy-q35.args
new file mode 100644
index 0000000..2f0627b
--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-bootindex-floppy-q35.args
@@ -0,0 +1,11 @@
+LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test QEMU_AUDIO_DRV=none \
+/usr/bin/qemu -S -M pc-q35-2.4 \
+-m 214 -smp 1 \
+-nographic -nodefaults \
+-monitor unix:/tmp/test-monitor,server,nowait \
+-no-acpi \
+-device i82801b11-bridge,id=pci.1,bus=pcie.0,addr=0x1e \
+-device pci-bridge,chassis_nr=2,id=pci.2,bus=pci.1,addr=0x1 \
+-drive file=/tmp/firmware.img,if=none,id=drive-fdc0-0-0 \
+-device isa-fdc,driveA=drive-fdc0-0-0,bootindexA=1 \
+-device virtio-balloon-pci,id=balloon0,bus=pci.2,addr=0x3
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-bootindex-floppy-q35.xml b/tests/qemuxml2argvdata/qemuxml2argv-bootindex-floppy-q35.xml
new file mode 100644
index 0000000..70d3262
--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-bootindex-floppy-q35.xml
@@ -0,0 +1,40 @@
+<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'>1</vcpu>
+ <os>
+ <type arch='x86_64' machine='pc-q35-2.4'>hvm</type>
+ <boot dev='fd'/>
+ </os>
+ <clock offset='utc'/>
+ <on_poweroff>destroy</on_poweroff>
+ <on_reboot>restart</on_reboot>
+ <on_crash>destroy</on_crash>
+ <devices>
+ <emulator>/usr/bin/qemu</emulator>
+ <disk type='file' device='floppy'>
+ <driver name='qemu' type='raw'/>
+ <source file='/tmp/firmware.img'/>
+ <target dev='fda' bus='fdc'/>
+ <address type='drive' controller='0' bus='0' target='0' unit='0'/>
+ </disk>
+ <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'>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x1e' function='0x0'/>
+ </controller>
+ <controller type='pci' index='2' model='pci-bridge'>
+ <address type='pci' domain='0x0000' bus='0x01' slot='0x01' function='0x0'/>
+ </controller>
+ <controller type='fdc' index='0'/>
+ <input type='mouse' bus='ps2'/>
+ <input type='keyboard' bus='ps2'/>
+ <memballoon model='virtio'>
+ <address type='pci' domain='0x0000' bus='0x02' slot='0x03' function='0x0'/>
+ </memballoon>
+ </devices>
+</domain>
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index 574777b..bee6637 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -607,6 +607,15 @@ mymain(void)
DO_TEST("boot-cdrom", NONE);
DO_TEST("boot-network", NONE);
DO_TEST("boot-floppy", NONE);
+ DO_TEST("boot-floppy-q35",
+ QEMU_CAPS_DEVICE, QEMU_CAPS_DEVICE_PCI_BRIDGE,
+ QEMU_CAPS_DEVICE_DMI_TO_PCI_BRIDGE,
+ QEMU_CAPS_DRIVE, QEMU_CAPS_ICH9_AHCI);
+ DO_TEST("bootindex-floppy-q35",
+ QEMU_CAPS_DEVICE, QEMU_CAPS_DEVICE_PCI_BRIDGE,
+ QEMU_CAPS_DEVICE_DMI_TO_PCI_BRIDGE,
+ QEMU_CAPS_DRIVE, QEMU_CAPS_ICH9_AHCI, QEMU_CAPS_BOOT_MENU,
+ QEMU_CAPS_BOOTINDEX);
DO_TEST("boot-multi", QEMU_CAPS_BOOT_MENU);
DO_TEST("boot-menu-enable",
QEMU_CAPS_BOOT_MENU, QEMU_CAPS_DEVICE, QEMU_CAPS_DRIVE);
--
2.4.5