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qemu: improve device flag parsing

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* src/qemu/qemu_capabilities.h (qemuCapsParseDeviceStr): New
prototype.
* src/qemu/qemu_capabilities.c (qemuCapsParsePCIDeviceStrs)
Rename and split...
(qemuCapsExtractDeviceStr, qemuCapsParseDeviceStr): ...to make it
easier to add and test device-specific checks.
(qemuCapsExtractVersionInfo): Update caller.
* tests/qemuhelptest.c (testHelpStrParsing): Also test parsing of
device-related flags.
(mymain): Update expected flags.
* tests/qemuhelpdata/qemu-0.12.1-device: New file.
* tests/qemuhelpdata/qemu-kvm-0.12.1.2-rhel60-device: New file.
* tests/qemuhelpdata/qemu-kvm-0.12.3-device: New file.
* tests/qemuhelpdata/qemu-kvm-0.13.0-device: New file.
This commit is contained in:
Eric Blake 2011-01-13 09:09:15 -07:00
parent 1ff03b28e9
commit f892f5a562
7 changed files with 195 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

39
src/qemu/qemu_capabilities.c
View File

@ -1032,28 +1032,46 @@ fail:
return -1;
}
static void
qemuCapsParsePCIDeviceStrs(const char *qemu,
static int
qemuCapsExtractDeviceStr(const char *qemu,
unsigned long long *flags)
{
char *pciassign = NULL;
char *output = NULL;
virCommandPtr cmd;
int ret = -1;
cmd = virCommandNewArgList(qemu, "-device", "pci-assign,?", NULL);
/* Cram together all device-related queries into one invocation;
* the output format makes it possible to distinguish what we
* need. Unrecognized '-device bogus,?' cause an error in
* isolation, but are silently ignored in combination with
* '-device ?'. */
cmd = virCommandNewArgList(qemu,
"-device", "pci-assign,?",
NULL);
virCommandAddEnvPassCommon(cmd);
/* qemu -help goes to stdout, but qemu -device ? goes to stderr. */
virCommandSetErrorBuffer(cmd, &pciassign);
virCommandSetErrorBuffer(cmd, &output);
virCommandClearCaps(cmd);
if (virCommandRun(cmd, NULL) < 0)
goto cleanup;
if (strstr(pciassign, "pci-assign.configfd"))
*flags |= QEMUD_CMD_FLAG_PCI_CONFIGFD;
ret = qemuCapsParseDeviceStr(output, flags);
cleanup:
VIR_FREE(pciassign);
VIR_FREE(output);
virCommandFree(cmd);
return ret;
}
int
qemuCapsParseDeviceStr(const char *str, unsigned long long *flags)
{
if (strstr(str, "pci-assign.configfd"))
*flags |= QEMUD_CMD_FLAG_PCI_CONFIGFD;
return 0;
}
int qemuCapsExtractVersionInfo(const char *qemu,
@ -1092,8 +1110,9 @@ int qemuCapsExtractVersionInfo(const char *qemu,
&version, &is_kvm, &kvm_version) == -1)
goto cleanup;
if (flags & QEMUD_CMD_FLAG_DEVICE)
qemuCapsParsePCIDeviceStrs(qemu, &flags);
if ((flags & QEMUD_CMD_FLAG_DEVICE) &&
qemuCapsExtractDeviceStr(qemu, &flags) < 0)
goto cleanup;
if (retversion)
*retversion = version;

2
src/qemu/qemu_capabilities.h
View File

@ -109,6 +109,8 @@ int qemuCapsParseHelpStr(const char *qemu,
unsigned int *version,
unsigned int *is_kvm,
unsigned int *kvm_version);
int qemuCapsParseDeviceStr(const char *str,
unsigned long long *qemuCmdFlags);
#endif /* __QEMU_CAPABILITIES_H__*/

0
tests/qemuhelpdata/qemu-0.12.1-device Normal file
View File

57
tests/qemuhelpdata/qemu-kvm-0.12.1.2-rhel60-device Normal file
View File

@ -0,0 +1,57 @@
name "pci-bridge", bus PCI
name "virtio-balloon-pci", bus PCI
name "virtio-serial-pci", bus PCI, alias "virtio-serial"
name "virtio-net-pci", bus PCI
name "virtio-blk-pci", bus PCI
name "i82562", bus PCI
name "i82559er", bus PCI
name "i82559c", bus PCI
name "i82559b", bus PCI
name "i82559a", bus PCI
name "i82558b", bus PCI
name "i82558a", bus PCI
name "i82557c", bus PCI
name "i82557b", bus PCI
name "i82557a", bus PCI
name "i82551", bus PCI
name "i82550", bus PCI
name "pcnet", bus PCI
name "rtl8139", bus PCI
name "e1000", bus PCI, desc "Intel Gigabit Ethernet"
name "ide-drive", bus IDE
name "isa-ide", bus ISA
name "ES1370", bus PCI, desc "ENSONIQ AudioPCI ES1370"
name "AC97", bus PCI, desc "Intel 82801AA AC97 Audio"
name "VGA", bus PCI
name "SUNW,fdtwo", bus System
name "sysbus-fdc", bus System
name "isa-serial", bus ISA
name "cirrus-vga", bus PCI, desc "Cirrus CLGD 54xx VGA"
name "isa-parallel", bus ISA
name "piix4-usb-uhci", bus PCI
name "piix3-usb-uhci", bus PCI
name "vmware-svga", bus PCI
name "ib700", bus ISA
name "ne2k_isa", bus ISA
name "testdev", bus ISA
name "pci-assign", bus PCI, desc "pass through host pci devices to the guest"
name "qxl", bus PCI, desc "Spice QXL GPU"
name "spicevmc", bus virtio-serial-bus
name "smbus-eeprom", bus I2C
name "usb-hub", bus USB
name "usb-host", bus USB
name "usb-kbd", bus USB
name "usb-mouse", bus USB
name "usb-tablet", bus USB
name "usb-wacom-tablet", bus USB, desc "QEMU PenPartner Tablet"
name "usb-braille", bus USB
name "usb-serial", bus USB
name "usb-net", bus USB
name "usb-bt-dongle", bus USB
name "virtserialport", bus virtio-serial-bus
name "virtconsole", bus virtio-serial-bus
name "i6300esb", bus PCI
name "ne2k_pci", bus PCI
pci-assign.host=pci-hostaddr
pci-assign.iommu=uint32
pci-assign.configfd=string

0
tests/qemuhelpdata/qemu-kvm-0.12.3-device Normal file
View File

70
tests/qemuhelpdata/qemu-kvm-0.13.0-device Normal file
View File

@ -0,0 +1,70 @@
name "pci-bridge", bus PCI
name "virtio-balloon-pci", bus PCI
name "virtio-serial-pci", bus PCI, alias "virtio-serial"
name "virtio-net-pci", bus PCI
name "virtio-blk-pci", bus PCI
name "sysbus-ohci", bus System, desc "OHCI USB Controller"
name "pci-ohci", bus PCI, desc "Apple USB Controller"
name "rtl8139", bus PCI
name "e1000", bus PCI, desc "Intel Gigabit Ethernet"
name "ivshmem", bus PCI
name "smbus-eeprom", bus I2C
name "scsi-disk", bus SCSI, desc "virtual scsi disk or cdrom"
name "scsi-generic", bus SCSI, desc "pass through generic scsi device (/dev/sg*)"
name "usb-hub", bus USB
name "usb-host", bus USB
name "usb-kbd", bus USB
name "usb-mouse", bus USB
name "usb-tablet", bus USB
name "usb-storage", bus USB
name "usb-wacom-tablet", bus USB, desc "QEMU PenPartner Tablet"
name "usb-braille", bus USB
name "usb-serial", bus USB
name "usb-net", bus USB
name "usb-bt-dongle", bus USB
name "virtconsole", bus virtio-serial-bus
name "virtserialport", bus virtio-serial-bus
name "isa-serial", bus ISA
name "isa-parallel", bus ISA
name "vt82c686b-usb-uhci", bus PCI
name "piix4-usb-uhci", bus PCI
name "piix3-usb-uhci", bus PCI
name "SUNW,fdtwo", bus System
name "sysbus-fdc", bus System
name "i6300esb", bus PCI
name "ne2k_pci", bus PCI
name "i82801", bus PCI, desc "Intel i82801 Ethernet"
name "i82562", bus PCI, desc "Intel i82562 Ethernet"
name "i82559er", bus PCI, desc "Intel i82559ER Ethernet"
name "i82559c", bus PCI, desc "Intel i82559C Ethernet"
name "i82559b", bus PCI, desc "Intel i82559B Ethernet"
name "i82559a", bus PCI, desc "Intel i82559A Ethernet"
name "i82558b", bus PCI, desc "Intel i82558B Ethernet"
name "i82558a", bus PCI, desc "Intel i82558A Ethernet"
name "i82557c", bus PCI, desc "Intel i82557C Ethernet"
name "i82557b", bus PCI, desc "Intel i82557B Ethernet"
name "i82557a", bus PCI, desc "Intel i82557A Ethernet"
name "i82551", bus PCI, desc "Intel i82551 Ethernet"
name "i82550", bus PCI, desc "Intel i82550 Ethernet"
name "pcnet", bus PCI
name "ne2k_isa", bus ISA
name "ide-drive", bus IDE
name "isa-ide", bus ISA
name "lsi53c895a", bus PCI, alias "lsi"
name "VGA", bus PCI
name "vmware-svga", bus PCI
name "sb16", bus ISA, desc "Creative Sound Blaster 16"
name "ES1370", bus PCI, desc "ENSONIQ AudioPCI ES1370"
name "AC97", bus PCI, desc "Intel 82801AA AC97 Audio"
name "cirrus-vga", bus PCI, desc "Cirrus CLGD 54xx VGA"
name "isa-applesmc", bus ISA
name "ib700", bus ISA
name "isa-debugcon", bus ISA
name "testdev", bus ISA
name "PIIX4_PM", bus PCI, desc "PM"
name "qxl", bus PCI, desc "Spice QXL GPU"
name "spicevmc", bus virtio-serial-bus
name "pci-assign", bus PCI, desc "pass through host pci devices to the guest"
pci-assign.host=pci-hostaddr
pci-assign.iommu=uint32
pci-assign.configfd=string

48
tests/qemuhelptest.c
View File

@ -7,6 +7,7 @@
# include "testutils.h"
# include "qemu/qemu_capabilities.h"
# include "memory.h"
# define MAX_HELP_OUTPUT_SIZE 1024*64
@ -39,50 +40,71 @@ static void printMismatchedFlags(unsigned long long got,
static int testHelpStrParsing(const void *data)
{
const struct testInfo *info = data;
char path[PATH_MAX];
char *path = NULL;
char helpStr[MAX_HELP_OUTPUT_SIZE];
char *help = &(helpStr[0]);
unsigned int version, is_kvm, kvm_version;
unsigned long long flags;
int ret = -1;
snprintf(path, PATH_MAX, "%s/qemuhelpdata/%s", abs_srcdir, info->name);
if (virAsprintf(&path, "%s/qemuhelpdata/%s", abs_srcdir, info->name) < 0)
return -1;
if (virtTestLoadFile(path, &help, MAX_HELP_OUTPUT_SIZE) < 0)
return -1;
goto cleanup;
if (qemuCapsParseHelpStr("QEMU", help, &flags,
&version, &is_kvm, &kvm_version) == -1)
return -1;
goto cleanup;
if (info->flags & QEMUD_CMD_FLAG_DEVICE) {
VIR_FREE(path);
if (virAsprintf(&path, "%s/qemuhelpdata/%s-device", abs_srcdir,
info->name) < 0)
goto cleanup;
if (virtTestLoadFile(path, &help, MAX_HELP_OUTPUT_SIZE) < 0)
goto cleanup;
if (qemuCapsParseDeviceStr(help, &flags) < 0)
goto cleanup;
}
if (flags != info->flags) {
fprintf(stderr, "Computed flags do not match: got 0x%llx, expected 0x%llx\n",
fprintf(stderr,
"Computed flags do not match: got 0x%llx, expected 0x%llx\n",
flags, info->flags);
if (getenv("VIR_TEST_DEBUG"))
printMismatchedFlags(flags, info->flags);
return -1;
goto cleanup;
}
if (version != info->version) {
fprintf(stderr, "Parsed versions do not match: got %u, expected %u\n",
version, info->version);
return -1;
goto cleanup;
}
if (is_kvm != info->is_kvm) {
fprintf(stderr, "Parsed is_kvm flag does not match: got %u, expected %u\n",
fprintf(stderr,
"Parsed is_kvm flag does not match: got %u, expected %u\n",
is_kvm, info->is_kvm);
return -1;
goto cleanup;
}
if (kvm_version != info->kvm_version) {
fprintf(stderr, "Parsed KVM versions do not match: got %u, expected %u\n",
fprintf(stderr,
"Parsed KVM versions do not match: got %u, expected %u\n",
kvm_version, info->kvm_version);
return -1;
goto cleanup;
}
return 0;
ret = 0;
cleanup:
VIR_FREE(path);
return ret;
}
static int
@ -318,6 +340,7 @@ mymain(int argc, char **argv)
QEMUD_CMD_FLAG_VNET_HOST |
QEMUD_CMD_FLAG_NO_KVM_PIT |
QEMUD_CMD_FLAG_TDF |
QEMUD_CMD_FLAG_PCI_CONFIGFD |
QEMUD_CMD_FLAG_NODEFCONFIG |
QEMUD_CMD_FLAG_BOOT_MENU |
QEMUD_CMD_FLAG_NESTING |
@ -399,6 +422,7 @@ mymain(int argc, char **argv)
QEMUD_CMD_FLAG_NO_HPET |
QEMUD_CMD_FLAG_NO_KVM_PIT |
QEMUD_CMD_FLAG_TDF |
QEMUD_CMD_FLAG_PCI_CONFIGFD |
QEMUD_CMD_FLAG_NODEFCONFIG |
QEMUD_CMD_FLAG_BOOT_MENU |
QEMUD_CMD_FLAG_FSDEV |