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virsh: allow the user to specify vmcore's format

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Add a new parameter --memory-only for 'virsh dump' command. So
the user can decide the vmcore's format.
This commit is contained in:
Wen Congyang 2012-06-12 11:07:04 +08:00
parent cdef31c562
commit 440b8ad181
2 changed files with 7 additions and 1 deletions
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3
tools/virsh.c
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@ -4022,6 +4022,7 @@ static const vshCmdOptDef opts_dump[] = {
{"domain", VSH_OT_DATA, VSH_OFLAG_REQ, N_("domain name, id or uuid")}, {"domain", VSH_OT_DATA, VSH_OFLAG_REQ, N_("domain name, id or uuid")},
{"file", VSH_OT_DATA, VSH_OFLAG_REQ, N_("where to dump the core")}, {"file", VSH_OT_DATA, VSH_OFLAG_REQ, N_("where to dump the core")},
{"verbose", VSH_OT_BOOL, 0, N_("display the progress of dump")}, {"verbose", VSH_OT_BOOL, 0, N_("display the progress of dump")},
{"memory-only", VSH_OT_BOOL, 0, N_("dump domain's memory only")},
{NULL, 0, 0, NULL} {NULL, 0, 0, NULL}
}; };
@ -4060,6 +4061,8 @@ doDump(void *opaque)
flags |= VIR_DUMP_BYPASS_CACHE; flags |= VIR_DUMP_BYPASS_CACHE;
if (vshCommandOptBool(cmd, "reset")) if (vshCommandOptBool(cmd, "reset"))
flags |= VIR_DUMP_RESET; flags |= VIR_DUMP_RESET;
if (vshCommandOptBool(cmd, "memory-only"))
flags |= VIR_DUMP_MEMORY_ONLY;
if (virDomainCoreDump(dom, to, flags) < 0) { if (virDomainCoreDump(dom, to, flags) < 0) {
vshError(ctl, _("Failed to core dump domain %s to %s"), name, to); vshError(ctl, _("Failed to core dump domain %s to %s"), name, to);

5
tools/virsh.pod
View File

@ -827,7 +827,7 @@ the I<format> argument must be B<qemu-argv>. For Xen hypervisor, the
I<format> argument may be B<xen-xm> or B<xen-sxpr>. I<format> argument may be B<xen-xm> or B<xen-sxpr>.
=item B<dump> I<domain-id> I<corefilepath> [I<--bypass-cache>] =item B<dump> I<domain-id> I<corefilepath> [I<--bypass-cache>]
{ [I<--live>] | [I<--crash>] | [I<--reset>] } [I<--verbose>] { [I<--live>] | [I<--crash>] | [I<--reset>] } [I<--verbose>] [I<--memory-only>]
Dumps the core of a domain to a file for analysis. Dumps the core of a domain to a file for analysis.
If I<--live> is specified, the domain continues to run until the core If I<--live> is specified, the domain continues to run until the core
@ -838,6 +838,9 @@ If I<--reset> is specified, the domain is reset after successful dump.
Note, these three switches are mutually exclusive. Note, these three switches are mutually exclusive.
If I<--bypass-cache> is specified, the save will avoid the file system If I<--bypass-cache> is specified, the save will avoid the file system
cache, although this may slow down the operation. cache, although this may slow down the operation.
If I<--memory-only> is specified, the file is elf file, and will only
include domain's memory and cpu common register value. It is very
useful if the domain uses host devices directly.
The progress may be monitored using B<domjobinfo> virsh command and canceled The progress may be monitored using B<domjobinfo> virsh command and canceled
with B<domjobabort> command (sent by another virsh instance). Another option with B<domjobabort> command (sent by another virsh instance). Another option