[xen master] xen/console: Set the default log level to INFO for release builds

[patchbot@xxxxxxx]

commit 8c01f267eff3d6c1ea04273e9885bf6d2fda1c44
Author:     Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>
AuthorDate: Thu Aug 24 11:02:58 2023 +0200
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Tue Aug 29 15:54:45 2023 +0100

    xen/console: Set the default log level to INFO for release builds
    
    Not displaying INFO messages by default on release builds is not
    helpful, as messages of that level are relevant for hypervisor
    operation.  For example messages related to livepatches applied and
    reverted are of INFO level.
    
    Custom builds that require less verbose output can adjust it using the
    command line, but attempt to provide all relevant information by
    default on release builds.
    
    Adjust the loglevel of printks that don't have an associated level to
    INFO instead of WARNING, since INFO will now be printed by default on
    all builds.
    
    Signed-off-by: Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>
    Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
    Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
 docs/misc/xen-command-line.pandoc | 2 +-
 xen/drivers/char/console.c        | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/docs/misc/xen-command-line.pandoc 
b/docs/misc/xen-command-line.pandoc
index 5f388eb560..a3145983f6 100644
--- a/docs/misc/xen-command-line.pandoc
+++ b/docs/misc/xen-command-line.pandoc
@@ -1706,7 +1706,7 @@ This option is available for hypervisors built with 
CONFIG_DEBUG_LOCKS only.
 ### loglvl
 > `= <level>[/<rate-limited level>]` where level is `none | error | warning | 
 > info | debug | all`
 
-> Default: `loglvl=warning`
+> Default: `loglvl=info`
 
 > Can be modified at runtime
 
diff --git a/xen/drivers/char/console.c b/xen/drivers/char/console.c
index 0e410fa086..f81b8b6b47 100644
--- a/xen/drivers/char/console.c
+++ b/xen/drivers/char/console.c
@@ -136,8 +136,8 @@ static DEFINE_SPINLOCK(console_lock);
  * the lower threshold equal to the upper.
  */
 #ifdef NDEBUG
-#define XENLOG_UPPER_THRESHOLD       2 /* Do not print INFO and DEBUG  */
-#define XENLOG_LOWER_THRESHOLD       2 /* Always print ERR and WARNING */
+#define XENLOG_UPPER_THRESHOLD       3 /* Do not print DEBUG  */
+#define XENLOG_LOWER_THRESHOLD       3 /* Always print INFO, ERR and WARNING */
 #define XENLOG_GUEST_UPPER_THRESHOLD 2 /* Do not print INFO and DEBUG  */
 #define XENLOG_GUEST_LOWER_THRESHOLD 0 /* Rate-limit ERR and WARNING   */
 #else
@@ -150,7 +150,7 @@ static DEFINE_SPINLOCK(console_lock);
  * The XENLOG_DEFAULT is the default given to printks that
  * do not have any print level associated with them.
  */
-#define XENLOG_DEFAULT       1 /* XENLOG_WARNING */
+#define XENLOG_DEFAULT       2 /* XENLOG_INFO */
 #define XENLOG_GUEST_DEFAULT 1 /* XENLOG_WARNING */
 
 static int __read_mostly xenlog_upper_thresh = XENLOG_UPPER_THRESHOLD;
--
generated by git-patchbot for /home/xen/git/xen.git#master