@@ -391,6 +391,8 @@ makes sense on its own.
> Default: `none`
+> Can be modified at runtime
+
Specify which timestamp format Xen should use for each console line.
* `none`: No timestamps
@@ -417,6 +419,8 @@ into the console ring buffer.
> Default: `conswitch=a`
+> Can be modified at runtime
+
Specify which character should be used to switch serial input between
Xen and dom0. The required sequence is CTRL-<switch char> three
times.
@@ -898,6 +902,8 @@ maximum number of maptrack frames domain.
> Default: `guest_loglvl=none/warning`
+> Can be modified at runtime
+
Set the logging level for Xen guests. Any log message with equal more
more importance will be printed.
@@ -1164,6 +1170,8 @@ if left disabled by the BIOS.
> Default: `loglvl=warning`
+> Can be modified at runtime
+
Set the logging level for Xen. Any log message with equal more more
importance will be printed.
@@ -41,6 +41,7 @@ string_param("console", opt_console);
/* boots. Any other value, or omitting the char, enables auto-switch */
static unsigned char __read_mostly opt_conswitch[3] = "a";
string_param("conswitch", opt_conswitch);
+string_param_runtime("conswitch", opt_conswitch);
/* sync_console: force synchronous console output (useful for debugging). */
static bool_t __initdata opt_sync_console;
@@ -69,6 +70,7 @@ static enum con_timestamp_mode __read_mostly opt_con_timestamp_mode = TSM_NONE;
static int parse_console_timestamps(char *s);
custom_param("console_timestamps", parse_console_timestamps);
+custom_param_runtime("console_timestamps", parse_console_timestamps);
/* conring_size: allows a large console ring than default (16kB). */
static uint32_t __initdata opt_conring_size;
@@ -136,6 +138,8 @@ static int parse_guest_loglvl(char *s);
*/
custom_param("loglvl", parse_loglvl);
custom_param("guest_loglvl", parse_guest_loglvl);
+custom_param_runtime("loglvl", parse_loglvl);
+custom_param_runtime("guest_loglvl", parse_guest_loglvl);
static atomic_t print_everything = ATOMIC_INIT(0);
@@ -145,7 +149,7 @@ static atomic_t print_everything = ATOMIC_INIT(0);
return (lvlnum); \
}
-static int __init __parse_loglvl(char *s, char **ps)
+static int __parse_loglvl(char *s, char **ps)
{
___parse_loglvl(s, ps, "none", 0);
___parse_loglvl(s, ps, "error", 1);
@@ -156,7 +160,7 @@ static int __init __parse_loglvl(char *s, char **ps)
return 2; /* sane fallback */
}
-static int __init _parse_loglvl(char *s, int *lower, int *upper)
+static int _parse_loglvl(char *s, int *lower, int *upper)
{
*lower = *upper = __parse_loglvl(s, &s);
if ( *s == '/' )
@@ -167,12 +171,12 @@ static int __init _parse_loglvl(char *s, int *lower, int *upper)
return *s ? -EINVAL : 0;
}
-static int __init parse_loglvl(char *s)
+static int parse_loglvl(char *s)
{
return _parse_loglvl(s, &xenlog_lower_thresh, &xenlog_upper_thresh);
}
-static int __init parse_guest_loglvl(char *s)
+static int parse_guest_loglvl(char *s)
{
return _parse_loglvl(s, &xenlog_guest_lower_thresh,
&xenlog_guest_upper_thresh);
@@ -606,7 +610,7 @@ static int printk_prefix_check(char *p, char **pp)
((loglvl < upper_thresh) && printk_ratelimit()));
}
-static int __init parse_console_timestamps(char *s)
+static int parse_console_timestamps(char *s)
{
switch ( parse_bool(s) )
{
Support modifying conswitch, console_timestamps, loglvl and guest_loglvl at runtime. Cc: Andrew Cooper <andrew.cooper3@citrix.com> Cc: George Dunlap <George.Dunlap@eu.citrix.com> Cc: Ian Jackson <ian.jackson@eu.citrix.com> Cc: Jan Beulich <jbeulich@suse.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Stefano Stabellini <sstabellini@kernel.org> Cc: Tim Deegan <tim@xen.org> Cc: Wei Liu <wei.liu2@citrix.com> Signed-off-by: Juergen Gross <jgross@suse.com> --- docs/misc/xen-command-line.markdown | 8 ++++++++ xen/drivers/char/console.c | 14 +++++++++----- 2 files changed, 17 insertions(+), 5 deletions(-)