[libvirt] [PATCH v7 2/9] libxl: pass driver config to libxlMakeDomBuildInfo
Jim Fehlig
jfehlig at suse.com
Tue Apr 17 20:00:25 UTC 2018
On 04/11/2018 07:03 PM, Marek Marczykowski-Górecki wrote:
> Preparation for global nestedhvm configuration - libxlMakeDomBuildInfo
> needs access to libxlDriverConfig.
> No functional change.
>
> Adjusting tests require slightly more mockup functions, because of
> libxlDriverConfigNew() call.
>
> Signed-off-by: Marek Marczykowski-Górecki <marmarek at invisiblethingslab.com>
> Reviewed-by: Daniel P. Berrangé <berrange at redhat.com>
> ---
> Changes since v6:
> - tests: add libxl_get_free_memory mock needed on Xen 4.5
> Changes since v4:
> - drop now unneeded parameters
> Changes since v3:
> - new patch, preparation
> ---
> src/libxl/libxl_conf.c | 13 +++++++------
> src/libxl/libxl_conf.h | 4 +---
> src/libxl/libxl_domain.c | 2 +-
> tests/libxlxml2domconfigtest.c | 23 ++++++++++++++++-------
> tests/virmocklibxl.c | 31 +++++++++++++++++++++++++++++++
> 5 files changed, 56 insertions(+), 17 deletions(-)
>
> diff --git a/src/libxl/libxl_conf.c b/src/libxl/libxl_conf.c
> index ae369bc..2565f64 100644
> --- a/src/libxl/libxl_conf.c
> +++ b/src/libxl/libxl_conf.c
> @@ -271,11 +271,12 @@ libxlMakeChrdevStr(virDomainChrDefPtr def, char **buf)
>
> static int
> libxlMakeDomBuildInfo(virDomainDefPtr def,
> - libxl_ctx *ctx,
> + libxlDriverConfigPtr cfg,
> virCapsPtr caps,
> libxl_domain_config *d_config)
> {
> virDomainClockDef clock = def->clock;
> + libxl_ctx *ctx = cfg->ctx;
> libxl_domain_build_info *b_info = &d_config->b_info;
> int hvm = def->os.type == VIR_DOMAIN_OSTYPE_HVM;
> size_t i;
> @@ -2346,17 +2347,17 @@ libxlDriverNodeGetInfo(libxlDriverPrivatePtr driver, virNodeInfoPtr info)
> int
> libxlBuildDomainConfig(virPortAllocatorRangePtr graphicsports,
> virDomainDefPtr def,
> - const char *channelDir LIBXL_ATTR_UNUSED,
> - libxl_ctx *ctx,
> - virCapsPtr caps,
> + libxlDriverConfigPtr cfg,
> libxl_domain_config *d_config)
> {
> + virCapsPtr caps = cfg->caps;
> + libxl_ctx *ctx = cfg->ctx;
> libxl_domain_config_init(d_config);
>
> if (libxlMakeDomCreateInfo(ctx, def, &d_config->c_info) < 0)
> return -1;
>
> - if (libxlMakeDomBuildInfo(def, ctx, caps, d_config) < 0)
> + if (libxlMakeDomBuildInfo(def, cfg, caps, d_config) < 0)
> return -1;
>
> #ifdef LIBXL_HAVE_VNUMA
> @@ -2388,7 +2389,7 @@ libxlBuildDomainConfig(virPortAllocatorRangePtr graphicsports,
> #endif
>
> #ifdef LIBXL_HAVE_DEVICE_CHANNEL
> - if (libxlMakeChannelList(channelDir, def, d_config) < 0)
> + if (libxlMakeChannelList(cfg->channelDir, def, d_config) < 0)
> return -1;
> #endif
>
> diff --git a/src/libxl/libxl_conf.h b/src/libxl/libxl_conf.h
> index 0e85dff..633ebf5 100644
> --- a/src/libxl/libxl_conf.h
> +++ b/src/libxl/libxl_conf.h
> @@ -215,9 +215,7 @@ libxlCreateXMLConf(void);
> int
> libxlBuildDomainConfig(virPortAllocatorRangePtr graphicsports,
> virDomainDefPtr def,
> - const char *channelDir LIBXL_ATTR_UNUSED,
> - libxl_ctx *ctx,
> - virCapsPtr caps,
> + libxlDriverConfigPtr cfg,
> libxl_domain_config *d_config);
>
> static inline void
> diff --git a/src/libxl/libxl_domain.c b/src/libxl/libxl_domain.c
> index ef9a902..0614589 100644
> --- a/src/libxl/libxl_domain.c
> +++ b/src/libxl/libxl_domain.c
> @@ -1261,7 +1261,7 @@ libxlDomainStart(libxlDriverPrivatePtr driver,
> goto cleanup_dom;
>
> if (libxlBuildDomainConfig(driver->reservedGraphicsPorts, vm->def,
> - cfg->channelDir, cfg->ctx, cfg->caps, &d_config) < 0)
> + cfg, &d_config) < 0)
> goto cleanup_dom;
>
> if (cfg->autoballoon && libxlDomainFreeMem(cfg->ctx, &d_config) < 0)
> diff --git a/tests/libxlxml2domconfigtest.c b/tests/libxlxml2domconfigtest.c
> index 6eec4c7..9d280e9 100644
> --- a/tests/libxlxml2domconfigtest.c
> +++ b/tests/libxlxml2domconfigtest.c
> @@ -56,8 +56,8 @@ testCompareXMLToDomConfig(const char *xmlfile,
> int ret = -1;
> libxl_domain_config actualconfig;
> libxl_domain_config expectconfig;
> + libxlDriverConfigPtr cfg;
> xentoollog_logger *log = NULL;
> - libxl_ctx *ctx = NULL;
> virPortAllocatorRangePtr gports = NULL;
> virDomainXMLOptionPtr xmlopt = NULL;
> virDomainDefPtr vmdef = NULL;
> @@ -68,10 +68,18 @@ testCompareXMLToDomConfig(const char *xmlfile,
> libxl_domain_config_init(&actualconfig);
> libxl_domain_config_init(&expectconfig);
>
> + if (!(cfg = libxlDriverConfigNew()))
> + goto cleanup;
> +
> + cfg->caps = caps;
> +
> if (!(log = (xentoollog_logger *)xtl_createlogger_stdiostream(stderr, XTL_DEBUG, 0)))
> goto cleanup;
>
> - if (libxl_ctx_alloc(&ctx, LIBXL_VERSION, 0, log) < 0)
> + /* replace logger with stderr one */
> + libxl_ctx_free(cfg->ctx);
> +
> + if (libxl_ctx_alloc(&cfg->ctx, LIBXL_VERSION, 0, log) < 0)
> goto cleanup;
>
> if (!(gports = virPortAllocatorRangeNew("vnc", 5900, 6000)))
> @@ -84,22 +92,22 @@ testCompareXMLToDomConfig(const char *xmlfile,
> NULL, VIR_DOMAIN_XML_INACTIVE)))
> goto cleanup;
>
> - if (libxlBuildDomainConfig(gports, vmdef, NULL, ctx, caps, &actualconfig) < 0)
> + if (libxlBuildDomainConfig(gports, vmdef, cfg, &actualconfig) < 0)
> goto cleanup;
>
> - if (!(actualjson = libxl_domain_config_to_json(ctx, &actualconfig))) {
> + if (!(actualjson = libxl_domain_config_to_json(cfg->ctx, &actualconfig))) {
> virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
> "Failed to retrieve JSON doc for libxl_domain_config");
> goto cleanup;
> }
>
> virTestLoadFile(jsonfile, &tempjson);
> - if (libxl_domain_config_from_json(ctx, &expectconfig, tempjson) != 0) {
> + if (libxl_domain_config_from_json(cfg->ctx, &expectconfig, tempjson) != 0) {
> virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
> "Failed to create libxl_domain_config from JSON doc");
> goto cleanup;
> }
> - if (!(expectjson = libxl_domain_config_to_json(ctx, &expectconfig))) {
> + if (!(expectjson = libxl_domain_config_to_json(cfg->ctx, &expectconfig))) {
> virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
> "Failed to retrieve JSON doc for libxl_domain_config");
> goto cleanup;
> @@ -122,10 +130,11 @@ testCompareXMLToDomConfig(const char *xmlfile,
> virDomainDefFree(vmdef);
> virPortAllocatorRangeFree(gports);
> virObjectUnref(xmlopt);
> - libxl_ctx_free(ctx);
> libxl_domain_config_dispose(&actualconfig);
> libxl_domain_config_dispose(&expectconfig);
> xtl_logger_destroy(log);
> + cfg->caps = NULL;
> + virObjectUnref(cfg);
> return ret;
> }
>
> diff --git a/tests/virmocklibxl.c b/tests/virmocklibxl.c
> index 9735956..50ae258 100644
> --- a/tests/virmocklibxl.c
> +++ b/tests/virmocklibxl.c
> @@ -27,6 +27,7 @@
> # include <sys/stat.h>
> # include <unistd.h>
> # include <libxl.h>
> +# include <util/virfile.h>
> # include <xenstore.h>
> # include <xenctrl.h>
> # include <sys/socket.h>
> @@ -49,6 +50,25 @@ VIR_MOCK_IMPL_RET_ARGS(xc_interface_open,
> }
>
>
> +VIR_MOCK_IMPL_RET_ARGS(libxl_get_version_info,
> + const libxl_version_info*,
> + libxl_ctx *, ctx)
> +{
> + static libxl_version_info info;
> +
> + memset(&info, 0, sizeof(info));
> +
> + /* silence gcc warning about unused function */
> + if (0)
> + real_libxl_get_version_info(ctx);
> + return &info;
> +}
> +
> +VIR_MOCK_STUB_RET_ARGS(libxl_get_free_memory,
> + int, 0,
> + libxl_ctx *, ctx,
> + uint32_t *, memkb);
> +
This still fails for me on Xen 4.8 through 4.10
virmocklibxl.c:67:24: error: conflicting types for 'libxl_get_free_memory'
VIR_MOCK_STUB_RET_ARGS(libxl_get_free_memory,
^
virmock.h:182:13: note: in definition of macro 'VIR_MOCK_STUB_RET_ARGS'
rettype name(VIR_MOCK_ARGTYPENAMES_UNUSED(__VA_ARGS__)) \
^~~~
In file included from virmocklibxl.c:29:0:
/usr/include/libxl.h:1570:5: note: previous declaration of
'libxl_get_free_memory' was here
int libxl_get_free_memory(libxl_ctx *ctx, uint64_t *memkb);
^~~~~~~~~~~~~~~~~~~~~
Your response in the V6 thread about "conflicting types (with
libxl_get_free_memory_0x040700)" was a good hint. Things work fine for me on Xen
4.4 through 4.10 with the following squashed in
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 2c0d1311c..8c4b6c220 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -528,6 +528,7 @@ libxlxml2domconfigtest_LDADD = $(libxl_LDADDS) $(LIBXML_LIBS)
virmocklibxl_la_SOURCES = \
virmocklibxl.c
+virmocklibxl_la_CFLAGS = $(LIBXL_CFLAGS)
virmocklibxl_la_LDFLAGS = $(MOCKLIBS_LDFLAGS)
virmocklibxl_la_LIBADD = $(MOCKLIBS_LIBS)
But I'm still confused as to how this works for you. Any idea about that? :-)
Regards,
Jim
> VIR_MOCK_STUB_RET_ARGS(xc_interface_close,
> int, 0,
> xc_interface *, handle)
> @@ -75,6 +95,17 @@ VIR_MOCK_STUB_RET_ARGS(bind,
> const struct sockaddr *, addr,
> socklen_t, addrlen)
>
> +VIR_MOCK_IMPL_RET_ARGS(virFileMakePath, int,
> + const char *, path)
> +{
> + /* replace log path with a writable directory */
> + if (strstr(path, "/log/")) {
> + snprintf((char*)path, strlen(path), ".");
> + return 0;
> + }
> + return real_virFileMakePath(path);
> +}
> +
> VIR_MOCK_IMPL_RET_ARGS(__xstat, int,
> int, ver,
> const char *, path,
>
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