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Detect QEMU flags per VM instead of once for driver as a whole

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This commit is contained in:
Daniel P. Berrange 2007-09-21 21:20:32 +00:00
parent b32f429849
commit 136ebc6e3c
5 changed files with 49 additions and 33 deletions
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12
ChangeLog
View File

@ -1,3 +1,11 @@
Fri Sep 21 17:14:00 EST 2007 Daniel P. Berrange <berrange@redhat.com>
* src/qemu_conf.c, src/qemu_conf.h: Detect QEMU flags per-VM,
not per driver, since different QEMU binaries have their own
requirements.
* tests/qemuxml2xmltest.c, tests/qemuxml2argvtets.c: Update
to changed internal QEMU api/structs.
Fri Sep 21 16:22:00 EST 2007 Daniel P. Berrange <berrange@redhat.com>
* src/remote_internal.c: Add a no_tty flag to stop SSH prompting
@ -6,11 +14,11 @@ Fri Sep 21 16:22:00 EST 2007 Daniel P. Berrange <berrange@redhat.com>
Fri Sep 21 15:06:00 EST 2007 Daniel P. Berrange <berrange@redhat.com>
* acinclude.m4: Check all compiler flags link successfully
* acinclude.m4: Check all compiler flags link successfully
instead of just compiling, to deal with broken debian linker
with stack protector
* configure.in: Remove redundant -fno-stack-protector workaround
Fri Sep 21 15:06:00 EST 2007 Daniel P. Berrange <berrange@redhat.com>
* src/qemu_driver.c: Use libxml for parsing & checking URIs

50
src/qemu_conf.c
View File

@ -287,7 +287,6 @@ static const char *qemudDefaultBinaryForArch(const char *arch) {
/* Find the fully qualified path to the binary for an architecture */
static char *qemudLocateBinaryForArch(virConnectPtr conn,
struct qemud_driver *driver ATTRIBUTE_UNUSED,
int virtType, const char *arch) {
const char *name;
char *path;
@ -408,14 +407,15 @@ static int qemudExtractVersionInfo(const char *qemu, int *version, int *flags) {
}
int qemudExtractVersion(virConnectPtr conn,
struct qemud_driver *driver) {
struct qemud_driver *driver ATTRIBUTE_UNUSED) {
char *binary = NULL;
struct stat sb;
int ignored;
if (driver->qemuVersion > 0)
return 0;
if (!(binary = qemudLocateBinaryForArch(conn, driver, QEMUD_VIRT_QEMU, "i686")))
if (!(binary = qemudLocateBinaryForArch(conn, QEMUD_VIRT_QEMU, "i686")))
return -1;
if (stat(binary, &sb) < 0) {
@ -426,7 +426,7 @@ int qemudExtractVersion(virConnectPtr conn,
return -1;
}
if (qemudExtractVersionInfo(binary, &driver->qemuVersion, &driver->qemuCmdFlags) < 0) {
if (qemudExtractVersionInfo(binary, &driver->qemuVersion, &ignored) < 0) {
free(binary);
return -1;
}
@ -1199,7 +1199,7 @@ static struct qemud_vm_def *qemudParseXML(virConnectPtr conn,
obj = xmlXPathEval(BAD_CAST "string(/domain/devices/emulator[1])", ctxt);
if ((obj == NULL) || (obj->type != XPATH_STRING) ||
(obj->stringval == NULL) || (obj->stringval[0] == 0)) {
char *tmp = qemudLocateBinaryForArch(conn, driver, def->virtType, def->os.arch);
char *tmp = qemudLocateBinaryForArch(conn, def->virtType, def->os.arch);
if (!tmp) {
goto error;
}
@ -1466,8 +1466,23 @@ int qemudBuildCommandLine(virConnectPtr conn,
struct utsname ut;
int disableKQEMU = 0;
if (qemudExtractVersion(conn, driver) < 0)
/* Make sure the binary we are about to try exec'ing exists.
* Technically we could catch the exec() failure, but that's
* in a sub-process so its hard to feed back a useful error
*/
if (stat(vm->def->os.binary, &sb) < 0) {
qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
"Cannot find QEMU binary %s: %s", vm->def->os.binary,
strerror(errno));
return -1;
}
if (vm->qemuVersion == 0) {
if (qemudExtractVersionInfo(vm->def->os.binary,
&(vm->qemuVersion),
&(vm->qemuCmdFlags)) < 0)
return -1;
}
uname(&ut);
@ -1483,22 +1498,11 @@ int qemudBuildCommandLine(virConnectPtr conn,
* 2. Guest is 'qemu'
* 3. The qemu binary has the -no-kqemu flag
*/
if ((driver->qemuCmdFlags & QEMUD_CMD_FLAG_KQEMU) &&
if ((vm->qemuCmdFlags & QEMUD_CMD_FLAG_KQEMU) &&
!strcmp(ut.machine, vm->def->os.arch) &&
vm->def->virtType == QEMUD_VIRT_QEMU)
disableKQEMU = 1;
/* Make sure the binary we are about to try exec'ing exists.
* Technically we could catch the exec() failure, but that's
* in a sub-process so its hard to feed back a useful error
*/
if (stat(vm->def->os.binary, &sb) < 0) {
qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
"Cannot find QEMU binary %s: %s", vm->def->os.binary,
strerror(errno));
return -1;
}
len = 1 + /* qemu */
2 + /* machine type */
disableKQEMU + /* Disable kqemu */
@ -1511,7 +1515,7 @@ int qemudBuildCommandLine(virConnectPtr conn,
2 + /* boot device */
2 + /* monitor */
(vm->def->localtime ? 1 : 0) + /* localtime */
(driver->qemuCmdFlags & QEMUD_CMD_FLAG_NO_REBOOT &&
(vm->qemuCmdFlags & QEMUD_CMD_FLAG_NO_REBOOT &&
vm->def->noReboot ? 1 : 0) + /* no-reboot */
(vm->def->features & QEMUD_FEATURE_ACPI ? 0 : 1) + /* acpi */
(vm->def->os.kernel[0] ? 2 : 0) + /* kernel */
@ -1567,7 +1571,7 @@ int qemudBuildCommandLine(virConnectPtr conn,
goto no_memory;
}
if (driver->qemuCmdFlags & QEMUD_CMD_FLAG_NO_REBOOT &&
if (vm->qemuCmdFlags & QEMUD_CMD_FLAG_NO_REBOOT &&
vm->def->noReboot) {
if (!((*argv)[++n] = strdup("-no-reboot")))
goto no_memory;
@ -1748,7 +1752,7 @@ int qemudBuildCommandLine(virConnectPtr conn,
if (vm->def->graphicsType == QEMUD_GRAPHICS_VNC) {
char vncdisplay[BR_INET_ADDR_MAXLEN+20];
int ret;
if (driver->qemuCmdFlags & QEMUD_CMD_FLAG_VNC_COLON)
if (vm->qemuCmdFlags & QEMUD_CMD_FLAG_VNC_COLON)
ret = snprintf(vncdisplay, sizeof(vncdisplay), "%s:%d",
vm->def->vncListen,
vm->def->vncActivePort - 5900);
@ -1885,7 +1889,9 @@ qemudAssignVMDef(virConnectPtr conn,
qemudFreeVMDef(vm->newDef);
vm->newDef = def;
}
/* Reset version, because the emulator path might have changed */
vm->qemuVersion = 0;
vm->qemuCmdFlags = 0;
return vm;
}

4
src/qemu_conf.h
View File

@ -211,6 +211,9 @@ struct qemud_vm {
int *tapfds;
int ntapfds;
int qemuVersion;
int qemuCmdFlags; /* values from enum qemud_cmd_flags */
char configFile[PATH_MAX];
char autostartLink[PATH_MAX];
char migrateFrom[PATH_MAX];
@ -272,7 +275,6 @@ struct qemud_network {
/* Main driver state */
struct qemud_driver {
int qemuVersion;
int qemuCmdFlags; /* values from enum qemud_cmd_flags */
int nactivevms;
int ninactivevms;
struct qemud_vm *vms;

8
tests/qemuxml2argvtest.c
View File

@ -37,6 +37,10 @@ static int testCompareXMLToArgvFiles(const char *xml, const char *cmd) {
vm.def = vmdef;
vm.pid = -1;
vm.id = -1;
vm.qemuVersion = 0 * 1000 * 100 + (8 * 1000) + 1;
vm.qemuCmdFlags = QEMUD_CMD_FLAG_VNC_COLON |
QEMUD_CMD_FLAG_NO_REBOOT;
vmdef->vncActivePort = vmdef->vncPort;
if (qemudBuildCommandLine(NULL, &driver, &vm, &argv) < 0)
@ -107,10 +111,6 @@ main(int argc, char **argv)
exit(EXIT_FAILURE);
}
driver.qemuVersion = 0 * 1000 * 100 + (8 * 1000) + 1;
driver.qemuCmdFlags = QEMUD_CMD_FLAG_VNC_COLON |
QEMUD_CMD_FLAG_NO_REBOOT;
if (virtTestRun("QEMU XML-2-ARGV minimal",
1, testCompareXMLToArgvHelper, "minimal") < 0)
ret = -1;

8
tests/qemuxml2xmltest.c
View File

@ -31,6 +31,10 @@ static int testCompareXMLToXMLFiles(const char *xml) {
vm.def = vmdef;
vm.pid = -1;
vm.id = -1;
vm.qemuVersion = 0 * 1000 * 100 + (8 * 1000) + 1;
vm.qemuCmdFlags = QEMUD_CMD_FLAG_VNC_COLON |
QEMUD_CMD_FLAG_NO_REBOOT;
vmdef->vncActivePort = vmdef->vncPort;
if (!(actual = qemudGenerateXML(NULL, &driver, &vm, vmdef, 0)))
@ -72,10 +76,6 @@ main(int argc, char **argv)
exit(EXIT_FAILURE);
}
driver.qemuVersion = 0 * 1000 * 100 + (8 * 1000) + 1;
driver.qemuCmdFlags = QEMUD_CMD_FLAG_VNC_COLON |
QEMUD_CMD_FLAG_NO_REBOOT;
if (virtTestRun("QEMU XML-2-ARGV minimal",
1, testCompareXMLToXMLHelper, "minimal") < 0)
ret = -1;