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[libvirt] [PATCH] storage: fix bogus target in gluster volume xml
by Eric Blake 19 Dec '13

19 Dec '13

Commit 6cd60b6 was flat out broken - it tried to print into the wrong variable. My testing was obviously too cursory (did the name get a slash added?); valgrind would have caught the error. Thankfully it didn't hit any release. Reported by Peter Krempa. * src/storage/storage_backend_gluster.c (virStorageBackendGlusterRefreshVol): Fix bogus code. Signed-off-by: Eric Blake <eblake(a)redhat.com> --- src/storage/storage_backend_gluster.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/storage/storage_backend_gluster.c b/src/storage/storage_backend_gluster.c index 622526b..9aa692e 100644 --- a/src/storage/storage_backend_gluster.c +++ b/src/storage/storage_backend_gluster.c @@ -227,7 +227,7 @@ virStorageBackendGlusterRefreshVol(virStorageBackendGlusterStatePtr state, goto cleanup; tmp = state->uri->path; - if (virAsprintf(&vol->key, "%s%s", state->uri->path, name) < 0) { + if (virAsprintf(&state->uri->path, "/%s", vol->key) < 0) { state->uri->path = tmp; goto cleanup; } -- 1.8.4.2

2 2

[libvirt] [PATCH 0/5] Fill qemucapabilitiesdata with some data
by Michal Privoznik 19 Dec '13

19 Dec '13

The actual patches are accessible at: git://gitorious.org/libvirt/michal-staging.git branch test_qemu_capabilities_data I'm not sending the actual patches as it's big junk of JSON qemu replies. The patches has from 35KiB to 59KiB. I don't want to overload the list. Michal Privoznik (5): qemucapabilitiesdata: Add qemu-1.2.2 data qemucapabilitiesdata: Add qemu-1.3.1 data qemucapabilitiesdata: Add qemu-1.4.2 data qemucapabilitiesdata: Add qemu-1.6.0 data qemucapabilitiesdata: Add qemu-1.6.50 data tests/qemucapabilitiesdata/caps_1.2.2-1.caps | 114 + tests/qemucapabilitiesdata/caps_1.2.2-1.replies | 1543 +++++++++++++ tests/qemucapabilitiesdata/caps_1.3.1-1.caps | 128 ++ tests/qemucapabilitiesdata/caps_1.3.1-1.replies | 1715 +++++++++++++++ tests/qemucapabilitiesdata/caps_1.4.2-1.caps | 129 ++ tests/qemucapabilitiesdata/caps_1.4.2-1.replies | 1765 +++++++++++++++ tests/qemucapabilitiesdata/caps_1.6.0-1.caps | 137 ++ tests/qemucapabilitiesdata/caps_1.6.0-1.replies | 2499 ++++++++++++++++++++++ tests/qemucapabilitiesdata/caps_1.6.50-1.caps | 136 ++ tests/qemucapabilitiesdata/caps_1.6.50-1.replies | 2476 +++++++++++++++++++++ tests/qemucapabilitiestest.c | 5 + 11 files changed, 10647 insertions(+) create mode 100644 tests/qemucapabilitiesdata/caps_1.2.2-1.caps create mode 100644 tests/qemucapabilitiesdata/caps_1.2.2-1.replies create mode 100644 tests/qemucapabilitiesdata/caps_1.3.1-1.caps create mode 100644 tests/qemucapabilitiesdata/caps_1.3.1-1.replies create mode 100644 tests/qemucapabilitiesdata/caps_1.4.2-1.caps create mode 100644 tests/qemucapabilitiesdata/caps_1.4.2-1.replies create mode 100644 tests/qemucapabilitiesdata/caps_1.6.0-1.caps create mode 100644 tests/qemucapabilitiesdata/caps_1.6.0-1.replies create mode 100644 tests/qemucapabilitiesdata/caps_1.6.50-1.caps create mode 100644 tests/qemucapabilitiesdata/caps_1.6.50-1.replies -- 1.8.1.5

3 9

[libvirt] [PATCH 3/3] Implementation deficiency in virInitctlSetRunLevel v2
by Reco 19 Dec '13

19 Dec '13

Implement fork & setns for lxcDomainShutdownFlags --- src/lxc/lxc_driver.c | 45 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) diff --git a/src/lxc/lxc_driver.c b/src/lxc/lxc_driver.c index 9d200b2..1227736 100644 --- a/src/lxc/lxc_driver.c +++ b/src/lxc/lxc_driver.c @@ -2744,6 +2744,50 @@ lxcDomainReboot(virDomainPtr dom, goto cleanup; } +#ifdef HAVE_SETNS + if (flags == 0 || flags & VIR_DOMAIN_REBOOT_INITCTL) { + int pid = -1; + int status = -1; + int mfd = -1; + + if (virAsprintf(&vroot, "/proc/%llu/ns/mnt", + (unsigned long long)priv->initpid) < 0) { + goto cleanup; + } + + if ((mfd = open(vroot, O_RDONLY)) < 0) { + virReportSystemError(VIR_ERR_OPERATION_UNSUPPORTED, "%s", + _("Kernel does not provide mount namespace")); + goto cleanup; + } + + switch (pid = fork()) { + case 0: + if (setns(mfd, 0) == -1) { + exit(-1); + } + rc = virInitctlSetRunLevel(VIR_INITCTL_RUNLEVEL_REBOOT, NULL); + exit(rc); + break; + case -1: + virReportSystemError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Fork failed")); + goto cleanup; + default: + if (waitpid(pid, &status, 0) < 0 || status < 0) { + virReportSystemError(errno, + _("Sending reboot failed with status %i"), + status); + rc = 0; + } else { + rc = status; + } + close(mfd); + } + } else { + rc = 0; + } +#else if (virAsprintf(&vroot, "/proc/%llu/root", (unsigned long long)priv->initpid) < 0) goto cleanup; @@ -2763,6 +2807,7 @@ lxcDomainReboot(virDomainPtr dom, } else { rc = 0; } +#endif if (rc == 0 && (flags == 0 || -- 1.7.10.4

1 0

[libvirt] [PATCH 1/3] Implementation deficiency in virInitctlSetRunLevel v2
by Reco 19 Dec '13

19 Dec '13

Hello, list. Refuse following symlinks in virInitctlSetRunLevel. A reasonable fallback for the next two patches, which apply fork-setns technique recommended on this list. --- src/util/virinitctl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/util/virinitctl.c b/src/util/virinitctl.c index 64bc23a..5cea992 100644 --- a/src/util/virinitctl.c +++ b/src/util/virinitctl.c @@ -139,7 +139,7 @@ int virInitctlSetRunLevel(virInitctlRunLevel level, return -1; } - if ((fd = open(path, O_WRONLY|O_NONBLOCK|O_CLOEXEC|O_NOCTTY)) < 0) { + if ((fd = open(path, O_WRONLY|O_NONBLOCK|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW)) < 0) { if (errno == ENOENT) { ret = 0; goto cleanup; -- 1.7.10.4

1 0

[libvirt] [PATCH RFC 00/27] Native external gluster snapshots
by Peter Krempa 19 Dec '13

19 Dec '13

This series refactors and fixes stuff needed to support snapshots on gluster-backed vm's. The series is marked as RFC as docs for some of the changes are missing and I'd like to start code review while I'll figure out the docs. Peter Krempa (27): DO NOT APPLY UPSTREAM: Reproducer for disk snapshot crash qemu: snapshot: Avoid libvirtd crash when qemu crashes while snapshotting Revert "DO NOT APPLY UPSTREAM: Reproducer for disk snapshot crash" Revert "storage: fix omitted slash in gluster volume URI" storage: gluster: Properly fix missing slashes in volume paths snapshot: schema: Split out snapshot disk driver definition snapshot: Add support for specifying snapshot disk backing type snapshot: Test snapshot disk type specification storage: Add gluster pool filter and fix virsh pool listing storage: Avoid forward declaration of virStorageVolDelete storage: fs: Fix comment for virStorageBackendFileSystemDelete storage: Support deletion of volumes on gluster pools storage: lvm: Avoid forward decl of virStorageBackendLogicalDeleteVol storage: LVM: Separate creating of the volume from building storage: disk: Separate creating of the volume from building storage: RBD: Separate creating of the volume from building storage: Sheepdog: Separate creating of the volume from building storage: Introduce internal pool support storage: Add new argument for createVol backend API storage: gluster: Introduce dummy functions for creating a volume storage: Improve error message when a storage backend is missing maint: Fix messy include of libvirt_internal.h storage: Add internal API to create temporary storage pools and vols storage: Implement ephemeral storage APIs for local disk volumes storage: gluster: Support conversion of gluster volumes to temp volumes qemu: snapshot: Switch snapshot file deletion to the new storage API qemu: snapshot: Add support for external active snapshots on gluster docs/hvsupport.pl | 3 + docs/schemas/domainsnapshot.rng | 94 +++- include/libvirt/libvirt.h.in | 1 + src/Makefile.am | 3 +- src/check-aclrules.pl | 3 + src/check-drivername.pl | 1 + src/conf/snapshot_conf.c | 25 +- src/conf/snapshot_conf.h | 15 +- src/conf/storage_conf.c | 7 +- src/conf/storage_conf.h | 1 + src/driver.h | 14 + src/internal.h | 2 - src/libvirt_internal.c | 71 +++ src/libvirt_internal.h | 22 + src/libvirt_private.syms | 3 + src/libxl/libxl_conf.h | 1 + src/lxc/lxc_conf.h | 1 + src/qemu/qemu_command.c | 2 +- src/qemu/qemu_command.h | 9 + src/qemu/qemu_driver.c | 274 +++++++++-- src/storage/storage_backend.c | 3 +- src/storage/storage_backend.h | 2 +- src/storage/storage_backend_disk.c | 47 +- src/storage/storage_backend_fs.c | 36 +- src/storage/storage_backend_gluster.c | 139 +++++- src/storage/storage_backend_logical.c | 129 ++--- src/storage/storage_backend_rbd.c | 42 +- src/storage/storage_backend_sheepdog.c | 32 +- src/storage/storage_driver.c | 597 +++++++++++++++++++---- src/uml/uml_conf.h | 1 + tests/domainsnapshotxml2xmlin/disk_snapshot.xml | 18 + tests/domainsnapshotxml2xmlout/disk_snapshot.xml | 18 + tools/virsh-pool.c | 9 +- 33 files changed, 1341 insertions(+), 284 deletions(-) create mode 100644 src/libvirt_internal.c -- 1.8.5.1

2 39

[libvirt] [PATCH] add --nocow option to vol-create and vol-clone
by Chunyan Liu 19 Dec '13

19 Dec '13

Btrfs has terrible performance when hosting VM images, even more when the guest in those VM are also using btrfs as file system. One way to mitigate this bad performance is to turn off COW attributes on VM files (since having copy on write for this kind of data is not useful). According to 'chattr' manpage, NOCOW could be set to new or empty file only on btrfs, so this patch tries to add a --nocow option to vol-create functions and vol-clone function, so that users could have a chance to set NOCOW to a new volume if that happens to create on a btrfs like file system. Signed-off-by: Chunyan Liu <cyliu(a)suse.com> --- include/libvirt/libvirt.h.in | 1 + src/storage/storage_backend.c | 2 +- src/storage/storage_backend_fs.c | 49 ++++++++++++++++++++++++++++++++++++- src/storage/storage_driver.c | 6 +++- tools/virsh-volume.c | 26 ++++++++++++++++++- 5 files changed, 77 insertions(+), 7 deletions(-) diff --git a/include/libvirt/libvirt.h.in b/include/libvirt/libvirt.h.in index 5aad75c..0761ba6 100644 --- a/include/libvirt/libvirt.h.in +++ b/include/libvirt/libvirt.h.in @@ -3151,6 +3151,7 @@ const char* virStorageVolGetKey (virStorageVolPtr vol); typedef enum { VIR_STORAGE_VOL_CREATE_PREALLOC_METADATA = 1 << 0, + VIR_STORAGE_VOL_CREATE_NOCOW = 1 << 1, } virStorageVolCreateFlags; virStorageVolPtr virStorageVolCreateXML (virStoragePoolPtr pool, diff --git a/src/storage/storage_backend.c b/src/storage/storage_backend.c index 57c1728..8ce7e99 100644 --- a/src/storage/storage_backend.c +++ b/src/storage/storage_backend.c @@ -423,7 +423,7 @@ virStorageBackendCreateRaw(virConnectPtr conn ATTRIBUTE_UNUSED, operation_flags |= VIR_FILE_OPEN_FORK; if ((fd = virFileOpenAs(vol->target.path, - O_RDWR | O_CREAT | O_EXCL, + O_RDWR | O_CREAT, vol->target.perms.mode, vol->target.perms.uid, vol->target.perms.gid, diff --git a/src/storage/storage_backend_fs.c b/src/storage/storage_backend_fs.c index 11cf2df..d60b64c 100644 --- a/src/storage/storage_backend_fs.c +++ b/src/storage/storage_backend_fs.c @@ -51,6 +51,13 @@ #include "virfile.h" #include "virlog.h" #include "virstring.h" +#ifdef __linux__ +# include <sys/ioctl.h> +# include <linux/fs.h> +#ifndef FS_NOCOW_FL +#define FS_NOCOW_FL 0x00800000 /* Do not cow file */ +#endif +#endif #define VIR_FROM_THIS VIR_FROM_STORAGE @@ -1090,6 +1097,42 @@ _virStorageBackendFileSystemVolBuild(virConnectPtr conn, return -1; } + if (flags & VIR_STORAGE_VOL_CREATE_NOCOW) { +#ifdef __linux__ + /* create an empty file and set nocow flag. + * This could optimize performance on file system like btrfs. + */ + int attr, fd; + int operation_flags = VIR_FILE_OPEN_FORCE_MODE | VIR_FILE_OPEN_FORCE_OWNER; + if (pool->def->type == VIR_STORAGE_POOL_NETFS) + operation_flags |= VIR_FILE_OPEN_FORK; + + if ((fd = virFileOpenAs(vol->target.path, + O_RDWR | O_CREAT | O_EXCL | O_LARGEFILE, + vol->target.perms.mode, + vol->target.perms.uid, + vol->target.perms.gid, + operation_flags)) < 0) { + virReportSystemError(-fd, + _("Failed to create file '%s'"), + vol->target.path); + return -1; + } + + /* This is an optimisation. The FS_IOC_SETFLAGS ioctl return value will + * be ignored since any failure of this operation should not block the + * left work. + */ + if (ioctl(fd, FS_IOC_GETFLAGS, &attr) == 0) { + attr |= FS_NOCOW_FL; + ioctl(fd, FS_IOC_SETFLAGS, &attr); + } + + VIR_FORCE_CLOSE(fd); +#endif + flags &= ~VIR_STORAGE_VOL_CREATE_NOCOW; + } + if (create_func(conn, pool, vol, inputvol, flags) < 0) return -1; return 0; @@ -1106,7 +1149,8 @@ virStorageBackendFileSystemVolBuild(virConnectPtr conn, virStorageVolDefPtr vol, unsigned int flags) { - virCheckFlags(VIR_STORAGE_VOL_CREATE_PREALLOC_METADATA, -1); + virCheckFlags(VIR_STORAGE_VOL_CREATE_PREALLOC_METADATA | + VIR_STORAGE_VOL_CREATE_NOCOW, -1); return _virStorageBackendFileSystemVolBuild(conn, pool, vol, NULL, flags); } @@ -1121,7 +1165,8 @@ virStorageBackendFileSystemVolBuildFrom(virConnectPtr conn, virStorageVolDefPtr inputvol, unsigned int flags) { - virCheckFlags(VIR_STORAGE_VOL_CREATE_PREALLOC_METADATA, -1); + virCheckFlags(VIR_STORAGE_VOL_CREATE_PREALLOC_METADATA | + VIR_STORAGE_VOL_CREATE_NOCOW, -1); return _virStorageBackendFileSystemVolBuild(conn, pool, vol, inputvol, flags); } diff --git a/src/storage/storage_driver.c b/src/storage/storage_driver.c index 3b4715a..2aef1a7 100644 --- a/src/storage/storage_driver.c +++ b/src/storage/storage_driver.c @@ -1509,7 +1509,8 @@ storageVolCreateXML(virStoragePoolPtr obj, virStorageVolPtr ret = NULL, volobj = NULL; virStorageVolDefPtr buildvoldef = NULL; - virCheckFlags(VIR_STORAGE_VOL_CREATE_PREALLOC_METADATA, NULL); + virCheckFlags(VIR_STORAGE_VOL_CREATE_PREALLOC_METADATA | + VIR_STORAGE_VOL_CREATE_NOCOW, NULL); storageDriverLock(driver); pool = virStoragePoolObjFindByUUID(&driver->pools, obj->uuid); @@ -1641,7 +1642,8 @@ storageVolCreateXMLFrom(virStoragePoolPtr obj, unsigned long long allocation; int buildret; - virCheckFlags(VIR_STORAGE_VOL_CREATE_PREALLOC_METADATA, NULL); + virCheckFlags(VIR_STORAGE_VOL_CREATE_PREALLOC_METADATA | + VIR_STORAGE_VOL_CREATE_NOCOW, NULL); storageDriverLock(driver); pool = virStoragePoolObjFindByUUID(&driver->pools, obj->uuid); diff --git a/tools/virsh-volume.c b/tools/virsh-volume.c index 22b10d5..bfbcc1f 100644 --- a/tools/virsh-volume.c +++ b/tools/virsh-volume.c @@ -151,6 +151,10 @@ static const vshCmdOptDef opts_vol_create_as[] = { .type = VSH_OT_BOOL, .help = N_("preallocate metadata (for qcow2 instead of full allocation)") }, + {.name = "nocow", + .type = VSH_OT_BOOL, + .help = N_("turn off copy-on-write (for file on fs like btrfs)") + }, {.name = NULL} }; @@ -177,6 +181,8 @@ cmdVolCreateAs(vshControl *ctl, const vshCmd *cmd) if (vshCommandOptBool(cmd, "prealloc-metadata")) flags |= VIR_STORAGE_VOL_CREATE_PREALLOC_METADATA; + if (vshCommandOptBool(cmd, "nocow")) + flags |= VIR_STORAGE_VOL_CREATE_NOCOW; if (!(pool = vshCommandOptPool(ctl, cmd, "pool", NULL))) return false; @@ -330,6 +336,10 @@ static const vshCmdOptDef opts_vol_create[] = { .type = VSH_OT_BOOL, .help = N_("preallocate metadata (for qcow2 instead of full allocation)") }, + {.name = "nocow", + .type = VSH_OT_BOOL, + .help = N_("turn off copy-on-write (for file on fs like btrfs)") + }, {.name = NULL} }; @@ -345,6 +355,8 @@ cmdVolCreate(vshControl *ctl, const vshCmd *cmd) if (vshCommandOptBool(cmd, "prealloc-metadata")) flags |= VIR_STORAGE_VOL_CREATE_PREALLOC_METADATA; + if (vshCommandOptBool(cmd, "nocow")) + flags |= VIR_STORAGE_VOL_CREATE_NOCOW; if (!(pool = vshCommandOptPool(ctl, cmd, "pool", NULL))) return false; @@ -408,6 +420,10 @@ static const vshCmdOptDef opts_vol_create_from[] = { .type = VSH_OT_BOOL, .help = N_("preallocate metadata (for qcow2 instead of full allocation)") }, + {.name = "nocow", + .type = VSH_OT_BOOL, + .help = N_("turn off copy-on-write (for file on fs like btrfs)") + }, {.name = NULL} }; @@ -426,7 +442,8 @@ cmdVolCreateFrom(vshControl *ctl, const vshCmd *cmd) if (vshCommandOptBool(cmd, "prealloc-metadata")) flags |= VIR_STORAGE_VOL_CREATE_PREALLOC_METADATA; - + if (vshCommandOptBool(cmd, "nocow")) + flags |= VIR_STORAGE_VOL_CREATE_NOCOW; if (vshCommandOptStringReq(ctl, cmd, "file", &from) < 0) goto cleanup; @@ -521,6 +538,10 @@ static const vshCmdOptDef opts_vol_clone[] = { .type = VSH_OT_BOOL, .help = N_("preallocate metadata (for qcow2 instead of full allocation)") }, + {.name = "nocow", + .type = VSH_OT_BOOL, + .help = N_("turn off copy-on-write (for file on fs like btrfs)") + }, {.name = NULL} }; @@ -540,7 +561,8 @@ cmdVolClone(vshControl *ctl, const vshCmd *cmd) if (vshCommandOptBool(cmd, "prealloc-metadata")) flags |= VIR_STORAGE_VOL_CREATE_PREALLOC_METADATA; - + if (vshCommandOptBool(cmd, "nocow")) + flags |= VIR_STORAGE_VOL_CREATE_NOCOW; origpool = virStoragePoolLookupByVolume(origvol); if (!origpool) { vshError(ctl, "%s", _("failed to get parent pool")); -- 1.6.0.2

3 6

[libvirt] [v8 0/6]Write separate module for hostdev passthrough
by Chunyan Liu 19 Dec '13

19 Dec '13

These patches implements a separate module for hostdev passthrough so that it could be shared by different drivers and can maintain a global state of a host device. patch 1/6: extract hostdev passthrough function from qemu_hostdev.c and make it reusable by multiple drivers. patch 2/6: add a unit test for hostdev common library. patch 3/6: switch qemu driver to use the common library instead of its own hostdev passthrough APIs. patch 4/6: switch lxc driver to use the common library instead of its own hostdev passthrough APIs. patch 5/6: add a hostdev pci backend type for xen usage. patch 6/6: add pci passthrough to libxl driver. --- Changes: * fix v7 comments * reorganize order of patches * rebase to latest source code Chunyan Liu (6): add hostdev passthrough common library add a unit test for hostdev common library change qemu driver to use hostdev common library change lxc driver to use hostdev common library add hostdev pci backend type for xen add pci passthrough to libxl driver docs/schemas/domaincommon.rng | 1 + po/POTFILES.in | 3 +- src/Makefile.am | 3 +- src/conf/domain_conf.c | 3 +- src/conf/domain_conf.h | 1 + src/libvirt_private.syms | 21 + src/libxl/libxl_conf.c | 63 + src/libxl/libxl_conf.h | 4 + src/libxl/libxl_domain.c | 9 + src/libxl/libxl_driver.c | 448 +++++- src/lxc/lxc_conf.h | 4 - src/lxc/lxc_driver.c | 47 +- src/lxc/lxc_hostdev.c | 413 ----- src/lxc/lxc_hostdev.h | 43 - src/lxc/lxc_process.c | 24 +- src/qemu/qemu_command.c | 4 +- src/qemu/qemu_conf.h | 9 +- src/qemu/qemu_domain.c | 22 + src/qemu/qemu_driver.c | 81 +- src/qemu/qemu_hostdev.c | 1454 ----------------- src/qemu/qemu_hostdev.h | 76 - src/qemu/qemu_hotplug.c | 136 +- src/qemu/qemu_process.c | 40 +- src/util/virhostdev.c | 1703 ++++++++++++++++++++ src/util/virhostdev.h | 134 ++ src/util/virpci.c | 30 +- src/util/virpci.h | 9 +- src/util/virscsi.c | 28 +- src/util/virscsi.h | 8 +- src/util/virusb.c | 29 +- src/util/virusb.h | 8 +- tests/Makefile.am | 5 + .../qemuxml2argv-hostdev-pci-address.xml | 1 + .../qemuxml2argvdata/qemuxml2argv-net-hostdev.xml | 1 + tests/qemuxml2argvdata/qemuxml2argv-pci-rom.xml | 2 + tests/virhostdevtest.c | 481 ++++++ tests/virpcimock.c | 45 +- 37 files changed, 3181 insertions(+), 2212 deletions(-) delete mode 100644 src/lxc/lxc_hostdev.c delete mode 100644 src/lxc/lxc_hostdev.h delete mode 100644 src/qemu/qemu_hostdev.c delete mode 100644 src/qemu/qemu_hostdev.h create mode 100644 src/util/virhostdev.c create mode 100644 src/util/virhostdev.h create mode 100644 tests/virhostdevtest.c

1 6

[libvirt] [v7 0/6] Write separate module for hostdev passthrough
by Chunyan Liu 19 Dec '13

19 Dec '13

These patches implements a separate module for hostdev passthrough so that it could be shared by different drivers and can maintain a global state of a host device. patch 1/6: extract hostdev passthrough function from qemu_hostdev.c and make it reusable by multiple drivers. patch 2/6: switch qemu driver to use the common library instead of its own hostdev passthrough APIs. patch 3/6: switch lxc driver to use the common library instead of its own hostdev passthrough APIs. patch 4/6: add a unit test for hostdev common library, based on virpcimock. patch 5/6: add a hostdev pci backend type for xen usage. For xen, the default stub driver would be 'pciback'. patch 6/6: add pci passthrough to libxl driver. --- Changes: * fix v6 comments * rebase to latest source code * add unit test for hostdev common library Chunyan Liu (6): add hostdev passthrough common library change qemu driver to use hostdev common library change lxc driver to use hostdev common library add unit test for hostdev common library add hostdev pci backend type for xen add pci passthrough to libxl driver docs/schemas/domaincommon.rng | 1 + po/POTFILES.in | 3 +- src/Makefile.am | 3 +- src/conf/domain_conf.c | 3 +- src/conf/domain_conf.h | 1 + src/libvirt_private.syms | 21 + src/libxl/libxl_conf.c | 63 ++ src/libxl/libxl_conf.h | 4 + src/libxl/libxl_domain.c | 9 + src/libxl/libxl_driver.c | 448 +++++++++++- src/lxc/lxc_conf.h | 4 - src/lxc/lxc_driver.c | 47 +- src/lxc/lxc_hostdev.c | 413 ---------- src/lxc/lxc_hostdev.h | 43 - src/lxc/lxc_process.c | 24 +- src/qemu/qemu_command.c | 4 +- src/qemu/qemu_conf.h | 9 +- src/qemu/qemu_domain.c | 22 + src/qemu/qemu_driver.c | 81 +-- src/qemu/qemu_hostdev.c | 1454 ----------------------------------- src/qemu/qemu_hostdev.h | 76 -- src/qemu/qemu_hotplug.c | 136 ++-- src/qemu/qemu_process.c | 40 +- src/util/virhostdev.c | 1703 +++++++++++++++++++++++++++++++++++++++++ src/util/virhostdev.h | 134 ++++ src/util/virpci.c | 30 +- src/util/virpci.h | 9 +- src/util/virscsi.c | 28 +- src/util/virscsi.h | 8 +- src/util/virusb.c | 29 +- src/util/virusb.h | 8 +- tests/Makefile.am | 5 + tests/virhostdevtest.c | 481 ++++++++++++ tests/virpcimock.c | 45 ++- 34 files changed, 3177 insertions(+), 2212 deletions(-) delete mode 100644 src/lxc/lxc_hostdev.c delete mode 100644 src/lxc/lxc_hostdev.h delete mode 100644 src/qemu/qemu_hostdev.c delete mode 100644 src/qemu/qemu_hostdev.h create mode 100644 src/util/virhostdev.c create mode 100644 src/util/virhostdev.h create mode 100644 tests/virhostdevtest.c

2 11

[libvirt] Implementation deficiency in virInitctlSetRunLevel
by Reco 18 Dec '13

18 Dec '13

Hello, list. I was pointed here by maintainer of libvirt package in Debian, Guido Günther. For the sake of completeness, the original bug report can be viewed at this link: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=732394 To sum up the bug report, current implementation of virInitctlSetRunLevel function (src/util/virinitctl.c) lacks any sanity checks before writing to container's /dev/initctl. In the absence of such checks, libvirtd can be easily tricked to write runlevel check request to an arbitrary main hosts' file (including hosts' /run/initctl, as described in the bug report). All it takes is one symlink in place of containers' /dev/initctl. I've checked current libvirtd's git, and it seems to me that the problem is still here. Attached to this letter is a patch which tries to mitigate the issue by checking whenever container's /dev/initctl is a pipe actually. Sincerely yours, Reco PS I'm not subscribed to this list, in case of further questions please CC me.

4 6

[libvirt] [PATCH] Remove stray semicolon after pragma macros
by Daniel P. Berrange 18 Dec '13

18 Dec '13

The VIR_WARNINGS_NO_CAST_ALIGN / VIR_WARNINGS_RESET should not have any trailing ';' since they are pragmas. The use of a ';' results in an empty statement which confuses CIL. Signed-off-by: Daniel P. Berrange <berrange(a)redhat.com> --- src/nwfilter/nwfilter_dhcpsnoop.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/nwfilter/nwfilter_dhcpsnoop.c b/src/nwfilter/nwfilter_dhcpsnoop.c index e8fcfef..a96a790 100644 --- a/src/nwfilter/nwfilter_dhcpsnoop.c +++ b/src/nwfilter/nwfilter_dhcpsnoop.c @@ -981,9 +981,9 @@ virNWFilterSnoopDHCPDecode(virNWFilterSnoopReqPtr req, /* go through the protocol headers */ switch (ntohs(pep->eh_type)) { case ETHERTYPE_IP: - VIR_WARNINGS_NO_CAST_ALIGN; + VIR_WARNINGS_NO_CAST_ALIGN pip = (struct iphdr *) pep->eh_data; - VIR_WARNINGS_RESET; + VIR_WARNINGS_RESET len -= offsetof(virNWFilterSnoopEthHdr, eh_data); break; default: -- 1.8.4.2

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