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ch_process: Handle enabled console devices

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Add functionality to allow libvirt console to connect to the
cloud-hypervisor created PTY associated with a VM by updating the
domain with console path information. This has to be run after the VM
is created by cloud-hypervisor.

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: William Douglas <william.douglas@intel.com>
This commit is contained in:
William Douglas 2021-09-08 11:01:20 -07:00 committed by Daniel P. Berrangé
parent 93accefd9e
commit d79b9a5a17
1 changed files with 84 additions and 0 deletions
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84
src/ch/ch_process.c
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@ -28,6 +28,7 @@
#include "ch_process.h"
#include "viralloc.h"
#include "virerror.h"
#include "virjson.h"
#include "virlog.h"
#define VIR_FROM_THIS VIR_FROM_CH
@ -52,6 +53,86 @@ virCHProcessConnectMonitor(virCHDriver *driver,
return monitor;
}
static void
virCHProcessUpdateConsoleDevice(virDomainObj *vm,
virJSONValue *config,
const char *device)
{
const char *path;
virDomainChrDef *chr = NULL;
virJSONValue *dev, *file;
if (!config)
return;
dev = virJSONValueObjectGet(config, device);
if (!dev) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("missing '%s' in 'config' from cloud-hypervisor"),
device);
return;
}
file = virJSONValueObjectGet(dev, "file");
if (!file) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("missing 'file' in '%s' from cloud-hypervisor"),
device);
return;
}
path = virJSONValueGetString(file);
if (!path) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unable to parse contents of 'file' field in '%s' from cloud-hypervisor"),
device);
return;
}
if (STREQ(device, "console")) {
chr = vm->def->consoles[0];
} else if (STREQ(device, "serial")) {
chr = vm->def->serials[0];
}
if (chr && chr->source)
chr->source->data.file.path = g_strdup(path);
}
static void
virCHProcessUpdateConsole(virDomainObj *vm,
virJSONValue *info)
{
virJSONValue *config;
config = virJSONValueObjectGet(info, "config");
if (!config) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing 'config' in info query result from cloud-hypervisor"));
return;
}
if (vm->def->nconsoles > 0)
virCHProcessUpdateConsoleDevice(vm, config, "console");
if (vm->def->nserials > 0)
virCHProcessUpdateConsoleDevice(vm, config, "serial");
}
static int
virCHProcessUpdateInfo(virDomainObj *vm)
{
virJSONValue *info;
virCHDomainObjPrivate *priv = vm->privateData;
if (virCHMonitorGetInfo(priv->monitor, &info) < 0)
return -1;
virCHProcessUpdateConsole(vm, info);
virJSONValueFree(info);
return 0;
}
/**
* virCHProcessStart:
* @driver: pointer to driver structure
@ -92,6 +173,9 @@ int virCHProcessStart(virCHDriver *driver,
vm->pid = priv->monitor->pid;
vm->def->id = vm->pid;
virCHProcessUpdateInfo(vm);
virDomainObjSetState(vm, VIR_DOMAIN_RUNNING, reason);
return 0;