diff options
| -rw-r--r-- | qga/commands-win32.c | 68 |
1 files changed, 66 insertions, 2 deletions
diff --git a/qga/commands-win32.c b/qga/commands-win32.c index 2799f5f082..5ef460f433 100644 --- a/qga/commands-win32.c +++ b/qga/commands-win32.c @@ -1223,7 +1223,71 @@ void qmp_guest_set_time(bool has_time, int64_t time_ns, Error **errp) GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp) { - error_setg(errp, QERR_UNSUPPORTED); + PSYSTEM_LOGICAL_PROCESSOR_INFORMATION pslpi, ptr; + DWORD length; + GuestLogicalProcessorList *head, **link; + Error *local_err = NULL; + int64_t current; + + ptr = pslpi = NULL; + length = 0; + current = 0; + head = NULL; + link = &head; + + if ((GetLogicalProcessorInformation(pslpi, &length) == FALSE) && + (GetLastError() == ERROR_INSUFFICIENT_BUFFER) && + (length > sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION))) { + ptr = pslpi = g_malloc0(length); + if (GetLogicalProcessorInformation(pslpi, &length) == FALSE) { + error_setg(&local_err, "Failed to get processor information: %d", + (int)GetLastError()); + } + } else { + error_setg(&local_err, + "Failed to get processor information buffer length: %d", + (int)GetLastError()); + } + + while ((local_err == NULL) && (length > 0)) { + if (pslpi->Relationship == RelationProcessorCore) { + ULONG_PTR cpu_bits = pslpi->ProcessorMask; + + while (cpu_bits > 0) { + if (!!(cpu_bits & 1)) { + GuestLogicalProcessor *vcpu; + GuestLogicalProcessorList *entry; + + vcpu = g_malloc0(sizeof *vcpu); + vcpu->logical_id = current++; + vcpu->online = true; + vcpu->has_can_offline = false; + + entry = g_malloc0(sizeof *entry); + entry->value = vcpu; + + *link = entry; + link = &entry->next; + } + cpu_bits >>= 1; + } + } + length -= sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION); + pslpi++; /* next entry */ + } + + g_free(ptr); + + if (local_err == NULL) { + if (head != NULL) { + return head; + } + /* there's no guest with zero VCPUs */ + error_setg(&local_err, "Guest reported zero VCPUs"); + } + + qapi_free_GuestLogicalProcessorList(head); + error_propagate(errp, local_err); return NULL; } @@ -1340,7 +1404,7 @@ GList *ga_command_blacklist_init(GList *blacklist) { const char *list_unsupported[] = { "guest-suspend-hybrid", - "guest-get-vcpus", "guest-set-vcpus", + "guest-set-vcpus", "guest-get-memory-blocks", "guest-set-memory-blocks", "guest-get-memory-block-size", "guest-fsfreeze-freeze-list", |