File libxc.migrate_tracking.patch of Package xen.26659
Track live migration state unconditionally in logfiles to see how long a domU was suspended.
Depends on libxc.sr.superpage.patch
--- xen-4.14.1-testing.orig/tools/libs/toollog/include/xentoollog.h
+++ xen-4.14.1-testing/tools/libs/toollog/include/xentoollog.h
@@ -133,6 +133,7 @@ const char *xtl_level_to_string(xentooll
});
+#define XL_NO_SUSEINFO "XL_NO_SUSEINFO"
#endif /* XENTOOLLOG_H */
/*
--- xen-4.14.1-testing.orig/tools/libxc/xc_domain.c
+++ xen-4.14.1-testing/tools/libxc/xc_domain.c
@@ -69,20 +69,28 @@ int xc_domain_cacheflush(xc_interface *x
int xc_domain_pause(xc_interface *xch,
uint32_t domid)
{
+ int ret;
DECLARE_DOMCTL;
domctl.cmd = XEN_DOMCTL_pausedomain;
domctl.domain = domid;
- return do_domctl(xch, &domctl);
+ ret = do_domctl(xch, &domctl);
+ if (getenv(XL_NO_SUSEINFO) == NULL)
+ SUSEINFO("domid %u: %s returned %d", domid, __func__, ret);
+ return ret;
}
int xc_domain_unpause(xc_interface *xch,
uint32_t domid)
{
+ int ret;
DECLARE_DOMCTL;
domctl.cmd = XEN_DOMCTL_unpausedomain;
domctl.domain = domid;
- return do_domctl(xch, &domctl);
+ ret = do_domctl(xch, &domctl);
+ if (getenv(XL_NO_SUSEINFO) == NULL)
+ SUSEINFO("domid %u: %s returned %d", domid, __func__, ret);
+ return ret;
}
--- xen-4.14.1-testing.orig/tools/libxc/xc_private.h
+++ xen-4.14.1-testing/tools/libxc/xc_private.h
@@ -42,6 +42,15 @@
#include <xen-tools/libs.h>
+/*
+ * Using loglevel ERROR to make sure the intended informational messages appear
+ * in libvirts libxl-driver.log
+ */
+#define SUSEINFO(_m, _a...) do { int ERROR_errno = errno; \
+ xc_report(xch, xch->error_handler, XTL_ERROR, XC_ERROR_NONE, "SUSEINFO: " _m , ## _a ); \
+ errno = ERROR_errno; \
+ } while (0)
+
#if defined(HAVE_VALGRIND_MEMCHECK_H) && !defined(NDEBUG) && !defined(__MINIOS__)
/* Compile in Valgrind client requests? */
#include <valgrind/memcheck.h>
--- xen-4.14.1-testing.orig/tools/libxc/xc_resume.c
+++ xen-4.14.1-testing/tools/libxc/xc_resume.c
@@ -284,7 +284,10 @@ out:
*/
int xc_domain_resume(xc_interface *xch, uint32_t domid, int fast)
{
- return (fast
+ int ret = (fast
? xc_domain_resume_cooperative(xch, domid)
: xc_domain_resume_any(xch, domid));
+ if (getenv(XL_NO_SUSEINFO) == NULL)
+ SUSEINFO("domid %u: %s%s returned %d", domid, __func__, fast ? " fast" : "", ret);
+ return ret;
}
--- xen-4.14.1-testing.orig/tools/libxc/xc_sr_common.c
+++ xen-4.14.1-testing/tools/libxc/xc_sr_common.c
@@ -204,6 +204,65 @@ bool _xc_sr_bitmap_resize(struct xc_sr_b
return true;
}
+/* Write a two-character hex representation of 'byte' to digits[].
+ Pre-condition: sizeof(digits) >= 2 */
+static void byte_to_hex(char *digits, const uint8_t byte)
+{
+ uint8_t nybbel = byte >> 4;
+
+ if ( nybbel > 9 )
+ digits[0] = 'a' + nybbel-10;
+ else
+ digits[0] = '0' + nybbel;
+
+ nybbel = byte & 0x0f;
+ if ( nybbel > 9 )
+ digits[1] = 'a' + nybbel-10;
+ else
+ digits[1] = '0' + nybbel;
+}
+
+/* Convert an array of 16 unsigned bytes to a DCE/OSF formatted UUID
+ string.
+
+ Pre-condition: sizeof(dest) >= 37 */
+void sr_uuid_to_string(char *dest, const uint8_t *uuid)
+{
+ int i = 0;
+ char *p = dest;
+
+ for (; i < 4; i++ )
+ {
+ byte_to_hex(p, uuid[i]);
+ p += 2;
+ }
+ *p++ = '-';
+ for (; i < 6; i++ )
+ {
+ byte_to_hex(p, uuid[i]);
+ p += 2;
+ }
+ *p++ = '-';
+ for (; i < 8; i++ )
+ {
+ byte_to_hex(p, uuid[i]);
+ p += 2;
+ }
+ *p++ = '-';
+ for (; i < 10; i++ )
+ {
+ byte_to_hex(p, uuid[i]);
+ p += 2;
+ }
+ *p++ = '-';
+ for (; i < 16; i++ )
+ {
+ byte_to_hex(p, uuid[i]);
+ p += 2;
+ }
+ *p = '\0';
+}
+
/*
* Local variables:
* mode: C
--- xen-4.14.1-testing.orig/tools/libxc/xc_sr_common.h
+++ xen-4.14.1-testing/tools/libxc/xc_sr_common.h
@@ -268,6 +268,7 @@ struct xc_sr_context
xc_stream_type_t stream_type;
xc_dominfo_t dominfo;
+ char uuid[16*2+4+1];
union /* Common save or restore data. */
{
@@ -537,6 +538,8 @@ static inline int pfn_set_populated(stru
return 0;
}
+extern void sr_uuid_to_string(char *dest, const uint8_t *uuid);
+
struct xc_sr_record
{
uint32_t type;
--- xen-4.14.1-testing.orig/tools/libxc/xc_sr_restore.c
+++ xen-4.14.1-testing/tools/libxc/xc_sr_restore.c
@@ -875,6 +875,7 @@ static int restore(struct xc_sr_context
struct xc_sr_rhdr rhdr;
int rc, saved_rc = 0, saved_errno = 0;
+ SUSEINFO("domid %u: %s %s start", ctx->domid, ctx->uuid, __func__);
IPRINTF("Restoring domain");
rc = setup(ctx);
@@ -950,6 +951,7 @@ static int restore(struct xc_sr_context
PERROR("Restore failed");
done:
+ SUSEINFO("domid %u: %s done", ctx->domid, __func__);
cleanup(ctx);
if ( saved_rc )
@@ -1019,6 +1021,7 @@ int xc_domain_restore(xc_interface *xch,
io_fd, dom, ctx.dominfo.hvm, stream_type);
ctx.domid = dom;
+ sr_uuid_to_string(ctx.uuid, ctx.dominfo.handle);
if ( read_headers(&ctx) )
return -1;
--- xen-4.14.1-testing.orig/tools/libxc/xc_sr_save.c
+++ xen-4.14.1-testing/tools/libxc/xc_sr_save.c
@@ -354,7 +354,7 @@ static void show_transfer_rate(struct xc
MiB_sec /= 1024U*1024U;
errno = 0;
- ERROR("%s: %zu bytes + %zu pages in %ld.%09ld sec, %zu MiB/sec", __func__,
+ SUSEINFO("domid %u: %zu bytes + %zu pages in %ld.%09ld sec, %zu MiB/sec", ctx->domid,
ctx->save.overhead_sent, ctx->save.pages_sent, diff.tv_sec, diff.tv_nsec, MiB_sec);
}
@@ -861,6 +861,7 @@ static int save(struct xc_sr_context *ct
xc_interface *xch = ctx->xch;
int rc, saved_rc = 0, saved_errno = 0;
+ SUSEINFO("domid %u: %s %s start, %lu pages allocated", ctx->domid, ctx->uuid, __func__, ctx->dominfo.nr_pages);
IPRINTF("Saving domain %d, type %s",
ctx->domid, dhdr_type_to_str(guest_type));
@@ -981,6 +982,7 @@ static int save(struct xc_sr_context *ct
PERROR("Save failed");
done:
+ SUSEINFO("domid %u: %s done", ctx->domid, __func__);
cleanup(ctx);
if ( saved_rc )
@@ -1041,6 +1043,8 @@ out:
return XGS_POLICY_ABORT;
}
suspend:
+ SUSEINFO("domid %u: suspending, %ld remaining dirty pages prior final transit",
+ suse_flags.ctx->domid, suse_flags.dirty_count);
return XGS_POLICY_STOP_AND_COPY;
}
@@ -1109,6 +1113,7 @@ int xc_domain_save_suse(xc_interface *xc
io_fd, dom, flags, ctx.dominfo.hvm);
ctx.domid = dom;
+ sr_uuid_to_string(ctx.uuid, ctx.dominfo.handle);
if ( ctx.dominfo.hvm )
{
--- xen-4.14.1-testing.orig/tools/xl/xl.c
+++ xen-4.14.1-testing/tools/xl/xl.c
@@ -398,6 +398,8 @@ int main(int argc, char **argv)
(progress_use_cr ? XTL_STDIOSTREAM_PROGRESS_USE_CR : 0));
if (!logger) exit(EXIT_FAILURE);
+ /* Provide context to libxl and libxc: no SUSEINFO() from xl */
+ setenv(XL_NO_SUSEINFO, "1", 0);
xl_ctx_alloc();
atexit(xl_ctx_free);
