[libvirt] [PATCHv3] hypervisor driver for Jailhouse
Christian Loehle
cloehle at linutronix.de
Mon Dec 14 19:20:32 UTC 2015
>From 818447bdc0c7fb5048367276a5eb64108ad95e2a Mon Sep 17 00:00:00 2001
From: Christian Loehle <cloehle at linutronix.de>
Date: Mon, 14 Dec 2015 20:13:07 +0100
Subject: [PATCH] Add Jailhouse Driver v3
---
configure.ac | 7 +
include/libvirt/virterror.h | 1 +
m4/virt-driver-jailhouse.m4 | 35 +++
po/POTFILES.in | 1 +
src/Makefile.am | 15 ++
src/conf/domain_conf.c | 3 +-
src/conf/domain_conf.h | 1 +
src/jailhouse/README | 14 ++
src/jailhouse/jailhouse_driver.c | 511 +++++++++++++++++++++++++++++++++++++++
src/jailhouse/jailhouse_driver.h | 28 +++
src/libvirt.c | 10 +
src/util/virerror.c | 1 +
12 files changed, 626 insertions(+), 1 deletion(-)
create mode 100644 m4/virt-driver-jailhouse.m4
create mode 100644 src/jailhouse/README
create mode 100644 src/jailhouse/jailhouse_driver.c
create mode 100644 src/jailhouse/jailhouse_driver.h
diff --git a/configure.ac b/configure.ac
index 98cf210..445b2ca 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1087,6 +1087,12 @@ dnl
LIBVIRT_DRIVER_CHECK_BHYVE
dnl
+dnl Checks for Jailhouse driver
+dnl
+
+LIBVIRT_DRIVER_CHECK_JAILHOUSE
+
+dnl
dnl check for shell that understands <> redirection without truncation,
dnl needed by src/qemu/qemu_monitor_{text,json}.c.
dnl
@@ -2830,6 +2836,7 @@ AC_MSG_NOTICE([ ESX: $with_esx])
AC_MSG_NOTICE([ Hyper-V: $with_hyperv])
LIBVIRT_DRIVER_RESULT_VZ
LIBVIRT_DRIVER_RESULT_BHYVE
+LIBVIRT_DRIVER_RESULT_JAILHOUSE
AC_MSG_NOTICE([ Test: $with_test])
AC_MSG_NOTICE([ Remote: $with_remote])
AC_MSG_NOTICE([ Network: $with_network])
diff --git a/include/libvirt/virterror.h b/include/libvirt/virterror.h
index 0539e48..bbc7e2e 100644
--- a/include/libvirt/virterror.h
+++ b/include/libvirt/virterror.h
@@ -128,6 +128,7 @@ typedef enum {
VIR_FROM_THREAD = 61, /* Error from thread utils */
VIR_FROM_ADMIN = 62, /* Error from admin backend */
VIR_FROM_LOGGING = 63, /* Error from log manager */
+ VIR_FROM_JAILHOUSE = 64, /* Error from Jailhouse driver */
# ifdef VIR_ENUM_SENTINELS
VIR_ERR_DOMAIN_LAST
diff --git a/m4/virt-driver-jailhouse.m4 b/m4/virt-driver-jailhouse.m4
new file mode 100644
index 0000000..6c72043
--- /dev/null
+++ b/m4/virt-driver-jailhouse.m4
@@ -0,0 +1,35 @@
+dnl The Jailhouse driver
+dnl
+dnl Copyright (C) 2005-2015 Red Hat, Inc.
+dnl
+dnl This library is free software; you can redistribute it and/or
+dnl modify it under the terms of the GNU Lesser General Public
+dnl License as published by the Free Software Foundation; either
+dnl version 2.1 of the License, or (at your option) any later version.
+dnl
+dnl This library is distributed in the hope that it will be useful,
+dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
+dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+dnl Lesser General Public License for more details.
+dnl
+dnl You should have received a copy of the GNU Lesser General Public
+dnl License along with this library. If not, see
+dnl <http://www.gnu.org/licenses/>.
+dnl
+
+AC_DEFUN([LIBVIRT_DRIVER_CHECK_JAILHOUSE],[
+ AC_ARG_WITH([jailhouse],
+ [AS_HELP_STRING([--with-jailhouse],
+ [add Jailhouse support @<:@default=yes@:>@])])
+ m4_divert_text([DEFAULTS], [with_jailhouse=yes])
+
+ if test "$with_jailhouse" = "yes"; then
+ AC_DEFINE_UNQUOTED([WITH_JAILHOUSE], 1, [whether jailhouse driver is enabled])
+ fi
+
+ AM_CONDITIONAL([WITH_JAILHOUSE], [test "$with_jailhouse" = "yes"])
+])
+
+AC_DEFUN([LIBVIRT_DRIVER_RESULT_JAILHOUSE],[
+ AC_MSG_NOTICE([Jailhouse: $with_jailhouse])
+])
diff --git a/po/POTFILES.in b/po/POTFILES.in
index 82e8d3e..29259f4 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -61,6 +61,7 @@ src/hyperv/hyperv_wmi.c
src/interface/interface_backend_netcf.c
src/interface/interface_backend_udev.c
src/internal.h
+src/jailhouse/jailhouse_driver.c
src/libvirt.c
src/libvirt-admin.c
src/libvirt-domain.c
diff --git a/src/Makefile.am b/src/Makefile.am
index 7219f7c..af46766 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -622,6 +622,7 @@ DRIVER_SOURCE_FILES = \
$(VMWARE_DRIVER_SOURCES) \
$(XEN_DRIVER_SOURCES) \
$(XENAPI_DRIVER_SOURCES) \
+ $(JAILHOUSE_DRIVER_SOURCES) \
$(NULL)
STATEFUL_DRIVER_SOURCE_FILES = \
@@ -904,6 +905,11 @@ BHYVE_DRIVER_SOURCES = \
bhyve/bhyve_utils.h \
$(NULL)
+JAILHOUSE_DRIVER_SOURCES = \
+ jailhouse/jailhouse_driver.c \
+ jailhouse/jailhouse_driver.h \
+ $(NULL)
+
NETWORK_DRIVER_SOURCES = \
network/bridge_driver.h network/bridge_driver.c \
network/bridge_driver_platform.h \
@@ -1480,6 +1486,14 @@ libvirt_driver_vz_la_LIBADD = $(PARALLELS_SDK_LIBS) $(LIBNL_LIBS)
libvirt_driver_vz_la_SOURCES = $(VZ_DRIVER_SOURCES)
endif WITH_VZ
+if WITH_JAILHOUSE
+noinst_LTLIBRARIES += libvirt_driver_jailhouse.la
+libvirt_la_BUILT_LIBADD += libvirt_driver_jailhouse.la
+libvirt_driver_jailhouse_la_CFLAGS = \
+ -I$(srcdir)/conf $(AM_CFLAGS)
+libvirt_driver_jailhouse_la_SOURCES = $(JAILHOUSE_DRIVER_SOURCES)
+endif WITH_JAILHOUSE
+
if WITH_BHYVE
noinst_LTLIBRARIES += libvirt_driver_bhyve_impl.la
libvirt_driver_bhyve_la_SOURCES =
@@ -1845,6 +1859,7 @@ EXTRA_DIST += \
$(HYPERV_DRIVER_EXTRA_DIST) \
$(VZ_DRIVER_SOURCES) \
$(BHYVE_DRIVER_SOURCES) \
+ $(JAILHOUSE_DRIVER_SOURCES) \
$(NETWORK_DRIVER_SOURCES) \
$(INTERFACE_DRIVER_SOURCES) \
$(STORAGE_DRIVER_SOURCES) \
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 5200c27..926c1a0 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -107,7 +107,8 @@ VIR_ENUM_IMPL(virDomainVirt, VIR_DOMAIN_VIRT_LAST,
"phyp",
"parallels",
"bhyve",
- "vz")
+ "vz",
+ "jailhouse")
VIR_ENUM_IMPL(virDomainOS, VIR_DOMAIN_OSTYPE_LAST,
"hvm",
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index cec681a..271811f 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -225,6 +225,7 @@ typedef enum {
VIR_DOMAIN_VIRT_PARALLELS,
VIR_DOMAIN_VIRT_BHYVE,
VIR_DOMAIN_VIRT_VZ,
+ VIR_DOMAIN_VIRT_JAILHOUSE,
VIR_DOMAIN_VIRT_LAST
} virDomainVirtType;
diff --git a/src/jailhouse/README b/src/jailhouse/README
new file mode 100644
index 0000000..02ba87d
--- /dev/null
+++ b/src/jailhouse/README
@@ -0,0 +1,14 @@
+The jailhouse hypervisor driver for the libvirt project aims to provide
+rudimentary support for managing jailhouse with the libvirt library.
+The main advantage of this is the possibility to use virt-manager as a GUI to
+manage Jailhouse cells. Thus the driver is mainly built around the API calls
+that virt-manager uses and needs.
+Due to the concept of Jailhouse a lot of libvirt functions can't be realized,
+so this driver isn't as full-featured as upstream drivers of the
+libvirt project.
+Currently the driver relies on the Jailhouse binary, which has to be in $PATH
+or passed when connecting a libvirt client to it
+(e.g. virt-manager -c jailhouse:///path/to/jailhouse/tools/jailhouse).
+Be aware though that the driver doesn't store any information about cells,
+so most API calls use "jailhouse cell list" every time they're called to get
+the current state.
diff --git a/src/jailhouse/jailhouse_driver.c b/src/jailhouse/jailhouse_driver.c
new file mode 100644
index 0000000..79e97f0
--- /dev/null
+++ b/src/jailhouse/jailhouse_driver.c
@@ -0,0 +1,511 @@
+/*
+ * virJailhouseDriver.c: hypervisor driver for managing Jailhouse cells
+ *
+ * Copyright (C) 2015 Linutronix GmbH
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see
+ * <http://www.gnu.org/licenses/>.
+ *
+ * Author: Christian Loehle
+ */
+
+#include <config.h>
+#include <string.h>
+#include "jailhouse_driver.h"
+#include "datatypes.h"
+#include "virerror.h"
+#include "viralloc.h"
+#include "virlog.h"
+#include "vircommand.h"
+#include "virxml.h"
+#include "configmake.h"
+#include "virfile.h"
+#include "virtypedparam.h"
+#include "virstring.h"
+#include "nodeinfo.h"
+#include "capabilities.h"
+#include "domain_conf.h"
+
+#define VIR_FROM_THIS VIR_FROM_JAILHOUSE
+
+#define IDLENGTH 8
+#define NAMELENGTH 24
+#define STATELENGTH 16
+#define CPULENGTH 24
+#define STATERUNNING 0
+#define STATERUNNINGSTRING "running "
+#define STATERUNNINGLOCKED 1
+#define STATERUNNINGLOCKEDSTRING "running/locked "
+#define STATESHUTDOWN 2
+#define STATESHUTDOWNSTRING "shut down "
+#define STATEFAILED 3
+#define STATEFAILEDSTRING "failed "
+#define JAILHOUSEBINARY "jailhouse"
+
+struct virJailhouseCell {
+ int id;
+ char name[NAMELENGTH+1];
+ int state;
+ virBitmapPtr assignedCPUs;
+ virBitmapPtr failedCPUs; /* currently unused */
+ unsigned char uuid[VIR_UUID_BUFLEN];
+};
+typedef struct virJailhouseCell virJailhouseCell;
+typedef virJailhouseCell *virJailhouseCellPtr;
+
+/*
+ * Because virCommandRunRegex Callback gets called every line
+ */
+struct virJailhouseCellCallbackData {
+ size_t ncells;
+ virJailhouseCellPtr cells;
+};
+typedef struct virJailhouseCellCallbackData virJailhouseCellCallbackData;
+typedef virJailhouseCellCallbackData *virJailhouseCellCallbackDataPtr;
+
+/*
+ * The driver requeries the cells on most calls, it stores the result of the
+ * last query, so it can copy the UUIDs in the new query if the cell is the
+ * same(otherwise it just generates a new one).
+ * not preserving the UUID results in a lot of bugs in libvirts clients.
+ */
+struct virJailhouseDriver {
+ size_t lastQueryCellsCount;
+ virJailhouseCellPtr lastQueryCells;
+};
+typedef struct virJailhouseDriver virJailhouseDriver;
+typedef virJailhouseDriver *virJailhouseDriverPtr;
+
+static int virJailhouseParseListOutputCallback(char **const groups, void *data)
+{
+ virJailhouseCellCallbackDataPtr celldata = (virJailhouseCellCallbackDataPtr) data;
+ virJailhouseCellPtr cells = celldata->cells;
+ size_t count = celldata->ncells;
+ char* endptr = groups[0] + strlen(groups[0]) - 1;
+ char* state = groups[2];
+ if (VIR_EXPAND_N(cells, count, 1))
+ return -1;
+ celldata->ncells++;
+
+ if (virStrToLong_i(groups[0], &endptr, 0, &cells[count-1].id))
+ return -1;
+ if (!virStrcpy(cells[count-1].name, groups[1], NAMELENGTH+1))
+ return -1;
+ if (STREQLEN(state, STATERUNNINGSTRING, STATELENGTH))
+ cells[count-1].state = STATERUNNING;
+ else if (STREQLEN(state, STATESHUTDOWNSTRING, STATELENGTH))
+ cells[count-1].state = STATESHUTDOWN;
+ else if (STREQLEN(state, STATERUNNINGLOCKEDSTRING, STATELENGTH))
+ cells[count-1].state = STATERUNNINGLOCKED;
+ else
+ cells[count-1].state = STATEFAILED;
+ virBitmapParse(groups[3], 0, &cells[count-1].assignedCPUs, VIR_DOMAIN_CPUMASK_LEN);
+ virBitmapParse(groups[4], 0, &cells[count-1].failedCPUs, VIR_DOMAIN_CPUMASK_LEN);
+ celldata->cells = cells;
+ return 0;
+}
+
+/*
+ * calls "jailhouse cell list" and parses the output in an array of virJailhouseCell
+ * example output:
+ * ID Name State Assigned CPUs Failed CPUs
+ * 0 QEMU-VM running 0-3
+ */
+static ssize_t
+virJailhouseParseListOutput(virJailhouseCellPtr *parsedCells)
+{
+ int nvars[] = { 5 };
+ virJailhouseCellCallbackData callbackData;
+ const char *regex[] = { "([0-9]{1,8})\\s*([-0-9a-zA-Z]{1,24})\\s*([a-z/ ]{1,16})\\s*([0-9,-]{1,24})?\\s*([0-9,-]{1,24})?\\s*" };
+ virCommandPtr cmd = virCommandNew(JAILHOUSEBINARY);
+ virCommandAddArg(cmd, "cell");
+ virCommandAddArg(cmd, "list");
+ virCommandAddEnvPassCommon(cmd);
+ callbackData.cells = NULL;
+ callbackData.ncells = 0;
+ if (virCommandRunRegex(cmd, 1, regex, nvars, &virJailhouseParseListOutputCallback, &callbackData, NULL) < 0) {
+ virCommandFree(cmd);
+ return -1;
+ }
+ virCommandFree(cmd);
+ *parsedCells = callbackData.cells;
+ return callbackData.ncells;
+}
+
+/*
+ * Returns the libvirts equivalent of the cell state passed to it
+ */
+static virDomainState
+virJailhouseCellToState(virJailhouseCellPtr cell)
+{
+ switch (cell->state) {
+ case STATERUNNING: return VIR_DOMAIN_RUNNING;
+ case STATERUNNINGLOCKED: return VIR_DOMAIN_RUNNING;
+ case STATESHUTDOWN: return VIR_DOMAIN_SHUTOFF;
+ case STATEFAILED: return VIR_DOMAIN_CRASHED;
+ default: return VIR_DOMAIN_NOSTATE;
+ }
+}
+
+/*
+ * Returns a new virDomainPtr filled with the data of the virJailhouseCell
+ */
+static virDomainPtr
+virJailhouseCellToDomainPtr(virConnectPtr conn, virJailhouseCellPtr cell)
+{
+ virDomainPtr dom = virGetDomain(conn, cell->name, cell->uuid);
+ dom->id = cell->id;
+ return dom;
+}
+
+/*
+ * Check cells for cell and copies UUID if found, otherwise generates a new one, this is to preserve UUID in libvirt
+ */
+static void virJailhouseSetUUID(virJailhouseCellPtr cells, size_t count, virJailhouseCellPtr cell)
+{
+ size_t i;
+ for (i = 0; i < count; i++) {
+ if (strncmp(cells[i].name, cell->name, NAMELENGTH+1))
+ continue;
+ memcpy(cell->uuid, cells[i].uuid, VIR_UUID_BUFLEN);
+ return;
+ }
+ virUUIDGenerate(cell->uuid);
+}
+
+/*
+ * Frees the old list of cells, gets the new one and preserves UUID if cells were present in the old
+ */
+static int
+virJailhouseGetCurrentCellList(virConnectPtr conn)
+{
+ virJailhouseDriverPtr driver = (virJailhouseDriverPtr)conn->privateData;
+ ssize_t count;
+ size_t i;
+ size_t lastCount = driver->lastQueryCellsCount;
+ virJailhouseCellPtr lastCells = driver->lastQueryCells;
+ virJailhouseCellPtr cells = NULL;
+
+ count = virJailhouseParseListOutput(&cells);
+ for (i = 0; i < count; i++)
+ virJailhouseSetUUID(lastCells, lastCount, cells+i);
+ for (i = 0; i < lastCount; i++) {
+ virBitmapFree(lastCells[i].assignedCPUs);
+ virBitmapFree(lastCells[i].failedCPUs);
+ }
+ VIR_FREE(lastCells);
+ driver->lastQueryCells = cells;
+ driver->lastQueryCellsCount = count;
+ return count;
+}
+
+/*
+ * Converts libvirts virDomainPtr to the internal virJailhouseCell by parsing the "jailhouse cell list" output
+ * and looking up the name of the virDomainPtr, returns NULL if cell is no longer present
+ */
+static virJailhouseCellPtr
+virDomainPtrToCell(virDomainPtr dom)
+{
+ virJailhouseDriverPtr driver = dom->conn->privateData;
+ size_t cellsCount;
+ size_t i;
+ if (virJailhouseGetCurrentCellList(dom->conn) == -1)
+ return NULL;
+ cellsCount = driver->lastQueryCellsCount;
+ virJailhouseCellPtr cells = driver->lastQueryCells;
+ for (i = 0; i < cellsCount; i++)
+ if (dom->id == cells[i].id)
+ return cells+i;
+ return NULL;
+}
+
+static virDrvOpenStatus
+jailhouseConnectOpen(virConnectPtr conn, virConnectAuthPtr auth ATTRIBUTE_UNUSED, unsigned int flags)
+{
+ virCheckFlags(0, VIR_DRV_OPEN_ERROR);
+ virJailhouseDriverPtr driver;
+ if (conn->uri->scheme == NULL ||
+ STRNEQ(conn->uri->scheme, "jailhouse"))
+ return VIR_DRV_OPEN_DECLINED;
+ if (conn->uri->path != NULL && STRNEQ(conn->uri->path, "/")) {
+ virReportError(VIR_ERR_INTERNAL_ERROR,
+ _("Unexpected Jailhouse URI path '%s', try jailhouse:///"),
+ conn->uri->path);
+ return VIR_DRV_OPEN_ERROR;
+ }
+ if (VIR_ALLOC(driver) < 0)
+ return VIR_DRV_OPEN_ERROR;
+ driver->lastQueryCells = NULL;
+ driver->lastQueryCellsCount = 0;
+ conn->privateData = driver;
+ return VIR_DRV_OPEN_SUCCESS;
+}
+
+static int
+jailhouseConnectClose(virConnectPtr conn)
+{
+
+ virJailhouseDriverPtr driver = (virJailhouseDriverPtr)conn->privateData;
+ size_t i;
+ size_t cellsCount = driver->lastQueryCellsCount;
+ virJailhouseCellPtr cells = driver->lastQueryCells;
+ for (i = 0; i < cellsCount; i++) {
+ virBitmapFree(cells[i].assignedCPUs);
+ virBitmapFree(cells[i].failedCPUs);
+ }
+ VIR_FREE(cells);
+ VIR_FREE(driver);
+ conn->privateData = NULL;
+ return 0;
+}
+
+static int
+jailhouseConnectNumOfDomains(virConnectPtr conn)
+{
+ if (virJailhouseGetCurrentCellList(conn) == -1)
+ return -1;
+ return ((virJailhouseDriverPtr)conn->privateData)->lastQueryCellsCount;
+}
+
+static int
+jailhouseConnectListDomains(virConnectPtr conn, int * ids, int maxids)
+{
+ virJailhouseDriverPtr driver = (virJailhouseDriverPtr)conn->privateData;
+ virJailhouseCellPtr cells;
+ size_t cellsCount;
+ size_t i;
+ if (virJailhouseGetCurrentCellList(conn) == -1)
+ return -1;
+ cellsCount = driver->lastQueryCellsCount;
+ cells = driver->lastQueryCells;
+ for (i = 0; i < maxids && i < cellsCount; i++)
+ ids[i] = cells[i].id;
+ return i;
+}
+
+static int
+jailhouseConnectListAllDomains(virConnectPtr conn, virDomainPtr ** domains, unsigned int flags)
+{
+ virCheckFlags(VIR_CONNECT_LIST_DOMAINS_ACTIVE, 0);
+ virJailhouseDriverPtr driver = (virJailhouseDriverPtr)conn->privateData;
+ virJailhouseCellPtr cells;
+ size_t cellsCount;
+ size_t i;
+ if (virJailhouseGetCurrentCellList(conn) == -1)
+ goto error;
+
+ cellsCount = driver->lastQueryCellsCount;
+ cells = driver->lastQueryCells;
+ if (cellsCount == -1)
+ goto error;
+ if (VIR_ALLOC_N(*domains, cellsCount+1) < 0)
+ goto error;
+ for (i = 0; i < cellsCount; i++)
+ (*domains)[i] = virJailhouseCellToDomainPtr(conn, cells+i);
+ (*domains)[cellsCount] = NULL;
+ return cellsCount;
+ error:
+ *domains = NULL;
+ return -1;
+}
+
+static virDomainPtr
+jailhouseDomainLookupByID(virConnectPtr conn, int id)
+{
+ virJailhouseDriverPtr driver = (virJailhouseDriverPtr)conn->privateData;
+ size_t cellsCount;
+ size_t i;
+ if (virJailhouseGetCurrentCellList(conn) == -1)
+ return NULL;
+
+ cellsCount = driver->lastQueryCellsCount;
+ if (cellsCount == -1)
+ return NULL;
+ virJailhouseCellPtr cells = driver->lastQueryCells;
+ for (i = 0; i < cellsCount; i++)
+ if (cells[i].id == id)
+ return virJailhouseCellToDomainPtr(conn, cells+i);
+ virReportError(VIR_ERR_NO_DOMAIN, NULL);
+ return NULL;
+}
+
+static virDomainPtr
+jailhouseDomainLookupByName(virConnectPtr conn, const char *lookupName)
+{
+ virJailhouseDriverPtr driver = (virJailhouseDriverPtr)conn->privateData;
+ size_t cellsCount;
+ size_t i;
+ if (virJailhouseGetCurrentCellList(conn) == -1)
+ return NULL;
+
+ cellsCount = driver->lastQueryCellsCount;
+ if (cellsCount == -1)
+ return NULL;
+ virJailhouseCellPtr cells = driver->lastQueryCells;
+ for (i = 0; i < cellsCount; i++)
+ if (STREQ(cells[i].name, lookupName))
+ return virJailhouseCellToDomainPtr(conn, cells+i);
+ virReportError(VIR_ERR_NO_DOMAIN, NULL);
+ return NULL;
+}
+
+static virDomainPtr
+jailhouseDomainLookupByUUID(virConnectPtr conn, const unsigned char * uuid)
+{
+ virJailhouseDriverPtr driver = (virJailhouseDriverPtr)conn->privateData;
+ size_t cellsCount;
+ size_t i;
+ if (virJailhouseGetCurrentCellList(conn) == -1)
+ return NULL;
+ cellsCount = driver->lastQueryCellsCount;
+ if (cellsCount == -1)
+ return NULL;
+ virJailhouseCellPtr cells = driver->lastQueryCells;
+ for (i = 0; i < cellsCount; i++)
+ if (memcmp(cells[i].uuid, (const char*)uuid, VIR_UUID_BUFLEN) == 0)
+ return virJailhouseCellToDomainPtr(conn, cells+i);
+ virReportError(VIR_ERR_NO_DOMAIN, NULL);
+ return NULL;
+}
+
+/*
+ * There currently is no straightforward way for the driver to retrieve those,
+ * so maxMem, memory and cpuTime have dummy values
+ */
+static int
+jailhouseDomainGetInfo(virDomainPtr domain, virDomainInfoPtr info)
+{
+ virJailhouseCellPtr cell = virDomainPtrToCell(domain);
+ if (cell == NULL)
+ return -1;
+ info->state = virJailhouseCellToState(cell);
+ info->maxMem = 0;
+ info->memory = 0;
+ info->nrVirtCpu = virBitmapCountBits(cell->assignedCPUs);
+ info->cpuTime = 0;
+ return 0;
+}
+
+static int
+jailhouseDomainGetState(virDomainPtr domain, int *state,
+ int *reason ATTRIBUTE_UNUSED, unsigned int flags)
+{
+ virCheckFlags(0, 0);
+ virJailhouseCellPtr cell = virDomainPtrToCell(domain);
+ if (cell == NULL)
+ return -1;
+ *state = virJailhouseCellToState(cell);
+ return 0;
+}
+
+static int
+jailhouseDomainDestroy(virDomainPtr domain)
+{
+ int resultcode;
+ virCommandPtr cmd = virCommandNew(JAILHOUSEBINARY);
+ virCommandAddArg(cmd, "cell");
+ virCommandAddArg(cmd, "shutdown");
+ virCommandAddArgFormat(cmd, "%d", domain->id);
+ virCommandAddEnvPassCommon(cmd);
+ resultcode = virCommandRun(cmd, NULL);
+ virCommandFree(cmd);
+ if (resultcode < 0)
+ return -1;
+ return 0;
+}
+
+static int
+jailhouseDomainCreate(virDomainPtr domain)
+{
+ int resultcode;
+ virCommandPtr cmd = virCommandNew(JAILHOUSEBINARY);
+ virCommandAddArg(cmd, "cell");
+ virCommandAddArg(cmd, "start");
+ virCommandAddArgFormat(cmd, "%d", domain->id);
+ virCommandAddEnvPassCommon(cmd);
+ resultcode = virCommandRun(cmd, NULL);
+ virCommandFree(cmd);
+ if (resultcode < 0)
+ return -1;
+ return 0;
+}
+
+/*
+ * There currently is no reason why it shouldn't be
+ */
+static int
+jailhouseConnectIsAlive(virConnectPtr conn ATTRIBUTE_UNUSED)
+{
+ return 1;
+}
+
+static int
+jailhouseNodeGetInfo(virConnectPtr conn ATTRIBUTE_UNUSED, virNodeInfoPtr info)
+{
+ return nodeGetInfo(NULL, info);
+}
+
+/*
+ * Returns a dummy capabilities XML for virt-manager
+ */
+static char *
+jailhouseConnectGetCapabilities(virConnectPtr conn ATTRIBUTE_UNUSED)
+{
+ virCapsPtr caps = virCapabilitiesNew(VIR_ARCH_NONE, false, false);
+ char* xml = virCapabilitiesFormatXML(caps);
+ virObjectUnref(caps);
+ return xml;
+}
+
+static char *
+jailhouseDomainGetXMLDesc(virDomainPtr domain, unsigned int flags)
+{
+ virCheckFlags(0, NULL);
+ char* xml;
+ virDomainDefPtr domainDef = virDomainDefNewFull(domain->name, domain->uuid, domain->id);
+ xml = virDomainDefFormat(domainDef, 0);
+ virDomainDefFree(domainDef);
+ return xml;
+}
+
+static virHypervisorDriver jailhouseHypervisorDriver = {
+ .name = "jailhouse",
+ .connectOpen = jailhouseConnectOpen, /* 1.3.1 */
+ .connectClose = jailhouseConnectClose, /* 1.3.1 */
+ .connectGetCapabilities = jailhouseConnectGetCapabilities, /* 1.3.1 */
+ .connectNumOfDomains = jailhouseConnectNumOfDomains, /* 1.3.1 */
+ .connectListDomains = jailhouseConnectListDomains, /* 1.3.1 */
+ .connectIsAlive = jailhouseConnectIsAlive, /* 1.3.1 */
+ .connectListAllDomains = jailhouseConnectListAllDomains, /* 1.3.1 */
+ .domainLookupByID = jailhouseDomainLookupByID, /* 1.3.1 */
+ .domainLookupByName = jailhouseDomainLookupByName, /* 1.3.1 */
+ .domainLookupByUUID = jailhouseDomainLookupByUUID, /* 1.3.1 */
+ .domainGetInfo = jailhouseDomainGetInfo, /* 1.3.1 */
+ .domainGetState = jailhouseDomainGetState, /* 1.3.1 */
+ .domainGetXMLDesc = jailhouseDomainGetXMLDesc, /* 1.3.1 */
+ .domainDestroy = jailhouseDomainDestroy, /* 1.3.1 */
+ .domainCreate = jailhouseDomainCreate, /* 1.3.1 */
+ .nodeGetInfo = jailhouseNodeGetInfo /* 1.3.1 */
+};
+
+static virConnectDriver jailhouseConnectDriver = {
+ .hypervisorDriver = &jailhouseHypervisorDriver,
+};
+
+int
+jailhouseRegister(void)
+{
+ return virRegisterConnectDriver(&jailhouseConnectDriver,
+ false);
+}
diff --git a/src/jailhouse/jailhouse_driver.h b/src/jailhouse/jailhouse_driver.h
new file mode 100644
index 0000000..47c17e7
--- /dev/null
+++ b/src/jailhouse/jailhouse_driver.h
@@ -0,0 +1,28 @@
+/*
+ * jailhouse_driver.h: hypervisor driver for managing Jailhouse cells
+ *
+ * Copyright (C) 2015 Linutronix GmbH
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see
+ * <http://www.gnu.org/licenses/>.
+ *
+ * Author: Christian Loehle
+ */
+
+#ifndef JAILHOUSE_DRIVER_H
+# define JAILHOUSE_DRIVER_H
+
+int jailhouseRegister(void);
+
+#endif
diff --git a/src/libvirt.c b/src/libvirt.c
index dd58e9c..36d5994 100644
--- a/src/libvirt.c
+++ b/src/libvirt.c
@@ -98,6 +98,9 @@
#ifdef WITH_BHYVE
# include "bhyve/bhyve_driver.h"
#endif
+#ifdef WITH_JAILHOUSE
+# include "jailhouse/jailhouse_driver.h"
+#endif
#define VIR_FROM_THIS VIR_FROM_NONE
@@ -437,6 +440,10 @@ virGlobalInit(void)
if (vzRegister() == -1)
goto error;
# endif
+#ifdef WITH_JAILHOUSE
+ if (jailhouseRegister() == -1)
+ goto error;
+#endif
#endif
#ifdef WITH_REMOTE
if (remoteRegister() == -1)
@@ -1038,6 +1045,9 @@ do_open(const char *name,
#ifndef WITH_VZ
STRCASEEQ(ret->uri->scheme, "parallels") ||
#endif
+#ifndef WITH_JAILHOUSE
+ STRCASEEQ(ret->uri->scheme, "jailhouse") ||
+#endif
false)) {
virReportErrorHelper(VIR_FROM_NONE, VIR_ERR_CONFIG_UNSUPPORTED,
__FILE__, __FUNCTION__, __LINE__,
diff --git a/src/util/virerror.c b/src/util/virerror.c
index 098211a..06741bf 100644
--- a/src/util/virerror.c
+++ b/src/util/virerror.c
@@ -135,6 +135,7 @@ VIR_ENUM_IMPL(virErrorDomain, VIR_ERR_DOMAIN_LAST,
"Thread jobs",
"Admin Interface",
"Log Manager",
+ "Jailhouse Driver",
)
--
2.1.4
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