Re: [libvirt] [PATCH 7/7] qemu: Implement virDomainSetGuestVcpus

Allow modification of specific vCPU states via the guest agent. --- src/qemu/qemu_driver.c | 83 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 83 insertions(+) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 5b96ad8..4bd8c92 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -19837,6 +19837,88 @@ qemuDomainGetGuestVcpus(virDomainPtr dom, } +static int +qemuDomainSetGuestVcpus(virDomainPtr dom, + const char *cpumap, + int state, + unsigned int flags) +{ + virQEMUDriverPtr driver = dom->conn->privateData; + virDomainObjPtr vm = NULL; + virBitmapPtr map = NULL; + qemuAgentCPUInfoPtr info = NULL; + int ninfo = 0; + size_t i; + int ret = -1; + + virCheckFlags(0, -1); + + if (state != 0 && state != 1) { + virReportInvalidArg(state, "%s", _("unsupported state value")); + return -1; + } + + if (virBitmapParse(cpumap, &map, 4096) < 0) + goto cleanup;

+ + if (!(vm = qemuDomObjFromDomain(dom))) + goto cleanup; + + if (virDomainSetGuestVcpusEnsureACL(dom->conn, vm->def) < 0) + goto cleanup; + + if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_MODIFY) < 0) + goto cleanup; + + if (!qemuDomainAgentAvailable(vm, true)) + goto endjob;