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Check for existance of QEMU binary
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commit
733c5a2350
@ -1,3 +1,8 @@
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Mon Apr 16 09:11:04 EST 2007 Daniel P. Berrange <berrange@redhat.com>
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* qemud/conf.c: Check for existance of QEMU binary path. Fix check
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for -no-kqemu flag to work with x86_64 on i386
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Mon Apr 16 09:09:04 EST 2007 Daniel P. Berrange <berrange@redhat.com>
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Mon Apr 16 09:09:04 EST 2007 Daniel P. Berrange <berrange@redhat.com>
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* src/qemu_internal.c: Implement virDomainGetOSType driver method
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* src/qemu_internal.c: Implement virDomainGetOSType driver method
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50
qemud/conf.c
50
qemud/conf.c
@ -33,7 +33,7 @@
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#include <fcntl.h>
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#include <fcntl.h>
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#include <sys/wait.h>
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#include <sys/wait.h>
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#include <arpa/inet.h>
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#include <arpa/inet.h>
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#include <sys/utsname.h>
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#include <libxml/parser.h>
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#include <libxml/parser.h>
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#include <libxml/tree.h>
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#include <libxml/tree.h>
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@ -299,6 +299,7 @@ static int qemudExtractVersionInfo(const char *qemu, int *version, int *flags) {
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int qemudExtractVersion(struct qemud_server *server) {
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int qemudExtractVersion(struct qemud_server *server) {
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char *binary = NULL;
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char *binary = NULL;
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struct stat sb;
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if (server->qemuVersion > 0)
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if (server->qemuVersion > 0)
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return 0;
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return 0;
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@ -306,6 +307,14 @@ int qemudExtractVersion(struct qemud_server *server) {
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if (!(binary = qemudLocateBinaryForArch(server, QEMUD_VIRT_QEMU, "i686")))
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if (!(binary = qemudLocateBinaryForArch(server, QEMUD_VIRT_QEMU, "i686")))
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return -1;
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return -1;
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if (stat(binary, &sb) < 0) {
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qemudReportError(server, VIR_ERR_INTERNAL_ERROR,
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"Cannot find QEMU binary %s: %s", binary,
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strerror(errno));
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free(binary);
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return -1;
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}
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if (qemudExtractVersionInfo(binary, &server->qemuVersion, &server->qemuCmdFlags) < 0) {
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if (qemudExtractVersionInfo(binary, &server->qemuVersion, &server->qemuCmdFlags) < 0) {
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free(binary);
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free(binary);
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return -1;
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return -1;
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@ -1163,16 +1172,48 @@ int qemudBuildCommandLine(struct qemud_server *server,
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char memory[50];
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char memory[50];
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char vcpus[50];
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char vcpus[50];
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char boot[QEMUD_MAX_BOOT_DEVS+1];
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char boot[QEMUD_MAX_BOOT_DEVS+1];
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struct stat sb;
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struct qemud_vm_disk_def *disk = vm->def->disks;
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struct qemud_vm_disk_def *disk = vm->def->disks;
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struct qemud_vm_net_def *net = vm->def->nets;
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struct qemud_vm_net_def *net = vm->def->nets;
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struct utsname ut;
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int disableKQEMU = 0;
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if (qemudExtractVersion(server) < 0)
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if (qemudExtractVersion(server) < 0)
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return -1;
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return -1;
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uname(&ut);
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/* Nasty hack make i?86 look like i386 to simplify next comparison */
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if (ut.machine[0] == 'i' &&
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ut.machine[2] == '8' &&
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ut.machine[3] == '6' &&
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!ut.machine[4])
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ut.machine[1] = '3';
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/* Need to explicitly disable KQEMU if
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* 1. Arch matches host arch
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* 2. Guest is 'qemu'
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* 3. The qemu binary has the -no-kqemu flag
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*/
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if ((server->qemuCmdFlags & QEMUD_CMD_FLAG_KQEMU) &&
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!strcmp(ut.machine, vm->def->os.arch) &&
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vm->def->virtType == QEMUD_VIRT_QEMU)
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disableKQEMU = 1;
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/* Make sure the binary we are about to try exec'ing exists.
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* Technically we could catch the exec() failure, but that's
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* in a sub-process so its hard to feed back a useful error
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*/
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if (stat(vm->def->os.binary, &sb) < 0) {
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qemudReportError(server, VIR_ERR_INTERNAL_ERROR,
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"Cannot find QEMU binary %s: %s", vm->def->os.binary,
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strerror(errno));
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return -1;
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}
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len = 1 + /* qemu */
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len = 1 + /* qemu */
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2 + /* machine type */
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2 + /* machine type */
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(((server->qemuCmdFlags & QEMUD_CMD_FLAG_KQEMU) &&
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disableKQEMU + /* Disable kqemu */
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(vm->def->virtType == QEMUD_VIRT_QEMU)) ? 1 : 0) + /* Disable kqemu */
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2 * vm->def->ndisks + /* disks*/
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2 * vm->def->ndisks + /* disks*/
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(vm->def->nnets > 0 ? (4 * vm->def->nnets) : 2) + /* networks */
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(vm->def->nnets > 0 ? (4 * vm->def->nnets) : 2) + /* networks */
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2 + /* memory*/
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2 + /* memory*/
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@ -1197,8 +1238,7 @@ int qemudBuildCommandLine(struct qemud_server *server,
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goto no_memory;
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goto no_memory;
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if (!((*argv)[++n] = strdup(vm->def->os.machine)))
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if (!((*argv)[++n] = strdup(vm->def->os.machine)))
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goto no_memory;
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goto no_memory;
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if ((server->qemuCmdFlags & QEMUD_CMD_FLAG_KQEMU) &&
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if (disableKQEMU) {
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(vm->def->virtType == QEMUD_VIRT_QEMU)) {
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if (!((*argv)[++n] = strdup("-no-kqemu")))
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if (!((*argv)[++n] = strdup("-no-kqemu")))
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goto no_memory;
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goto no_memory;
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}
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}
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