[libvirt] [PATCH V2] libxl: use LIBXL_API_VERSION 0x040200
To ensure the libvirt libxl driver will build with future versions of Xen where the libxl API may change in incompatible ways, explicitly use LIBXL_API_VERSION 0x040200. The libxl driver does use new libxl APIs that have been added since Xen 4.2, but currently it does not make use of any changes made to existing APIs such as libxl_domain_create_restore or libxl_set_vcpuaffinity. The version can be bumped if/when the libxl driver consumes the changed APIs. Further details can be found in the following discussion thread https://www.redhat.com/archives/libvir-list/2016-April/msg00178.html Signed-off-by: Jim Fehlig <jfehlig@suse.com> --- configure.ac | 2 ++ src/libxl/libxl_conf.h | 12 ------------ src/libxl/libxl_domain.c | 15 --------------- 3 files changed, 2 insertions(+), 27 deletions(-) diff --git a/configure.ac b/configure.ac index b1500f6..446f2a2 100644 --- a/configure.ac +++ b/configure.ac @@ -894,6 +894,7 @@ if test "$with_libxl" != "no" ; then PKG_CHECK_MODULES([LIBXL], [xenlight], [ LIBXL_FIRMWARE_DIR=`$PKG_CONFIG --variable xenfirmwaredir xenlight` LIBXL_EXECBIN_DIR=`$PKG_CONFIG --variable libexec_bin xenlight` + LIBXL_CFLAGS="$LIBXL_CFLAGS -DLIBXL_API_VERSION=0x040200" with_libxl=yes ], [LIBXL_FOUND=no]) if test "$LIBXL_FOUND" = "no"; then @@ -906,6 +907,7 @@ if test "$with_libxl" != "no" ; then LIBS="$LIBS $LIBXL_LIBS" AC_CHECK_LIB([xenlight], [libxl_ctx_alloc], [ with_libxl=yes + LIBXL_CFLAGS="$LIBXL_CFLAGS -DLIBXL_API_VERSION=0x040200" LIBXL_LIBS="$LIBXL_LIBS -lxenlight" ],[ if test "$with_libxl" = "yes"; then diff --git a/src/libxl/libxl_conf.h b/src/libxl/libxl_conf.h index 3c0eafb..24e2911 100644 --- a/src/libxl/libxl_conf.h +++ b/src/libxl/libxl_conf.h @@ -69,18 +69,6 @@ # endif -/* libxl interface for setting VCPU affinity changed in 4.5. In fact, a new - * parameter has been added, representative of 'VCPU soft affinity'. If one - * does not care about it (and that's libvirt case), passing NULL is the - * right thing to do. To mark that change, LIBXL_HAVE_VCPUINFO_SOFT_AFFINITY - * is defined. */ -# ifdef LIBXL_HAVE_VCPUINFO_SOFT_AFFINITY -# define libxl_set_vcpuaffinity(ctx, domid, vcpuid, map) \ - libxl_set_vcpuaffinity((ctx), (domid), (vcpuid), (map), NULL) -# define libxl_set_vcpuaffinity_all(ctx, domid, max_vcpus, map) \ - libxl_set_vcpuaffinity_all((ctx), (domid), (max_vcpus), (map), NULL) -# endif - typedef struct _libxlDriverPrivate libxlDriverPrivate; typedef libxlDriverPrivate *libxlDriverPrivatePtr; diff --git a/src/libxl/libxl_domain.c b/src/libxl/libxl_domain.c index 86fb713..14a900c 100644 --- a/src/libxl/libxl_domain.c +++ b/src/libxl/libxl_domain.c @@ -1026,9 +1026,6 @@ libxlDomainStart(libxlDriverPrivatePtr driver, virDomainObjPtr vm, int managed_save_fd = -1; libxlDomainObjPrivatePtr priv = vm->privateData; libxlDriverConfigPtr cfg; -#ifdef LIBXL_HAVE_DOMAIN_CREATE_RESTORE_PARAMS - libxl_domain_restore_params params; -#endif virHostdevManagerPtr hostdev_mgr = driver->hostdevMgr; libxl_asyncprogress_how aop_console_how; @@ -1118,20 +1115,8 @@ libxlDomainStart(libxlDriverPrivatePtr driver, virDomainObjPtr vm, ret = libxl_domain_create_new(cfg->ctx, &d_config, &domid, NULL, &aop_console_how); } else { -#if defined(LIBXL_HAVE_DOMAIN_CREATE_RESTORE_SEND_BACK_FD) - params.checkpointed_stream = 0; - ret = libxl_domain_create_restore(cfg->ctx, &d_config, &domid, - restore_fd, -1, ¶ms, NULL, - &aop_console_how); -#elif defined(LIBXL_HAVE_DOMAIN_CREATE_RESTORE_PARAMS) - params.checkpointed_stream = 0; - ret = libxl_domain_create_restore(cfg->ctx, &d_config, &domid, - restore_fd, ¶ms, NULL, - &aop_console_how); -#else ret = libxl_domain_create_restore(cfg->ctx, &d_config, &domid, restore_fd, NULL, &aop_console_how); -#endif } virObjectLock(vm); -- 2.6.1
On Thu, 2016-04-14 at 16:35 -0600, Jim Fehlig wrote:
To ensure the libvirt libxl driver will build with future versions of Xen where the libxl API may change in incompatible ways, explicitly use LIBXL_API_VERSION 0x040200. The libxl driver does use new libxl APIs that have been added since Xen 4.2, but currently it does not make use of any changes made to existing APIs such as libxl_domain_create_restore or libxl_set_vcpuaffinity. The version can be bumped if/when the libxl driver consumes the changed APIs.
Further details can be found in the following discussion thread
https://www.redhat.com/archives/libvir-list/2016-April/msg00178.html Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Reviewed-by: Dario Faggioli <dario.faggioli@citrix.com> Thanks and Regards, Dario -- <<This happens because I choose it to happen!>> (Raistlin Majere) ----------------------------------------------------------------- Dario Faggioli, Ph.D, http://about.me/dario.faggioli Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK)
On Thu, Apr 14, 2016 at 04:35:12PM -0600, Jim Fehlig wrote:
To ensure the libvirt libxl driver will build with future versions of Xen where the libxl API may change in incompatible ways, explicitly use LIBXL_API_VERSION 0x040200. The libxl driver does use new libxl APIs that have been added since Xen 4.2, but currently it does not make use of any changes made to existing APIs such as libxl_domain_create_restore or libxl_set_vcpuaffinity. The version can be bumped if/when the libxl driver consumes the changed APIs.
Further details can be found in the following discussion thread
https://www.redhat.com/archives/libvir-list/2016-April/msg00178.html Signed-off-by: Jim Fehlig <jfehlig@suse.com> --- configure.ac | 2 ++ src/libxl/libxl_conf.h | 12 ------------ src/libxl/libxl_domain.c | 15 --------------- 3 files changed, 2 insertions(+), 27 deletions(-)
diff --git a/configure.ac b/configure.ac index b1500f6..446f2a2 100644 --- a/configure.ac +++ b/configure.ac @@ -894,6 +894,7 @@ if test "$with_libxl" != "no" ; then PKG_CHECK_MODULES([LIBXL], [xenlight], [ LIBXL_FIRMWARE_DIR=`$PKG_CONFIG --variable xenfirmwaredir xenlight` LIBXL_EXECBIN_DIR=`$PKG_CONFIG --variable libexec_bin xenlight` + LIBXL_CFLAGS="$LIBXL_CFLAGS -DLIBXL_API_VERSION=0x040200" with_libxl=yes ], [LIBXL_FOUND=no]) if test "$LIBXL_FOUND" = "no"; then @@ -906,6 +907,7 @@ if test "$with_libxl" != "no" ; then LIBS="$LIBS $LIBXL_LIBS" AC_CHECK_LIB([xenlight], [libxl_ctx_alloc], [ with_libxl=yes + LIBXL_CFLAGS="$LIBXL_CFLAGS -DLIBXL_API_VERSION=0x040200" LIBXL_LIBS="$LIBXL_LIBS -lxenlight" ],[ if test "$with_libxl" = "yes"; then
Looks good, I'd just adjust these two hunks so that it's added in one place (and can be changed in one place later on so we don't fall into trouble accidentally. ACK with that changed. Martin
On 04/15/2016 03:48 AM, Martin Kletzander wrote:
On Thu, Apr 14, 2016 at 04:35:12PM -0600, Jim Fehlig wrote:
To ensure the libvirt libxl driver will build with future versions of Xen where the libxl API may change in incompatible ways, explicitly use LIBXL_API_VERSION 0x040200. The libxl driver does use new libxl APIs that have been added since Xen 4.2, but currently it does not make use of any changes made to existing APIs such as libxl_domain_create_restore or libxl_set_vcpuaffinity. The version can be bumped if/when the libxl driver consumes the changed APIs.
Further details can be found in the following discussion thread
https://www.redhat.com/archives/libvir-list/2016-April/msg00178.html Signed-off-by: Jim Fehlig <jfehlig@suse.com> --- configure.ac | 2 ++ src/libxl/libxl_conf.h | 12 ------------ src/libxl/libxl_domain.c | 15 --------------- 3 files changed, 2 insertions(+), 27 deletions(-)
diff --git a/configure.ac b/configure.ac index b1500f6..446f2a2 100644 --- a/configure.ac +++ b/configure.ac @@ -894,6 +894,7 @@ if test "$with_libxl" != "no" ; then PKG_CHECK_MODULES([LIBXL], [xenlight], [ LIBXL_FIRMWARE_DIR=`$PKG_CONFIG --variable xenfirmwaredir xenlight` LIBXL_EXECBIN_DIR=`$PKG_CONFIG --variable libexec_bin xenlight` + LIBXL_CFLAGS="$LIBXL_CFLAGS -DLIBXL_API_VERSION=0x040200" with_libxl=yes ], [LIBXL_FOUND=no]) if test "$LIBXL_FOUND" = "no"; then @@ -906,6 +907,7 @@ if test "$with_libxl" != "no" ; then LIBS="$LIBS $LIBXL_LIBS" AC_CHECK_LIB([xenlight], [libxl_ctx_alloc], [ with_libxl=yes + LIBXL_CFLAGS="$LIBXL_CFLAGS -DLIBXL_API_VERSION=0x040200" LIBXL_LIBS="$LIBXL_LIBS -lxenlight" ],[ if test "$with_libxl" = "yes"; then
Looks good, I'd just adjust these two hunks so that it's added in one place (and can be changed in one place later on so we don't fall into trouble accidentally. ACK with that changed.
Thanks. I used one LIBXL_CFLAGS="$LIBXL_CFLAGS -DLIBXL_API_VERSION=0x040200" after the test for libxenlight, and added a comment for good measure. Pushed now. Regards, Jim
participants (3)
-
Dario Faggioli -
Jim Fehlig -
Martin Kletzander