events.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
Limiting the number of event channels to 1024 is fine for 32-bit
builds, but not for 64-bit ones. This might be a problem when using
Xenstore-stubdom as the number of domains which can be supported is
then limited to a little bit more than 1000.
So raise the number of event channels to 4096 in 64-bit builds.
Signed-off-by: Juergen Gross <jgross@suse.com>
---
events.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/events.c b/events.c
index 342aead..cdae90f 100644
--- a/events.c
+++ b/events.c
@@ -23,7 +23,7 @@
#include <mini-os/lib.h>
#include <xen/xsm/flask_op.h>
-#define NR_EVS 1024
+#define NR_EVS EVTCHN_2L_NR_CHANNELS
/* this represents a event handler. Chaining or sharing is not allowed */
typedef struct _ev_action_t {
--
2.16.4
Juergen Gross, le jeu. 16 avril 2020 14:27:00 +0200, a ecrit: > Limiting the number of event channels to 1024 is fine for 32-bit > builds, but not for 64-bit ones. This might be a problem when using > Xenstore-stubdom as the number of domains which can be supported is > then limited to a little bit more than 1000. > > So raise the number of event channels to 4096 in 64-bit builds. > > Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org> > --- > events.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/events.c b/events.c > index 342aead..cdae90f 100644 > --- a/events.c > +++ b/events.c > @@ -23,7 +23,7 @@ > #include <mini-os/lib.h> > #include <xen/xsm/flask_op.h> > > -#define NR_EVS 1024 > +#define NR_EVS EVTCHN_2L_NR_CHANNELS > > /* this represents a event handler. Chaining or sharing is not allowed */ > typedef struct _ev_action_t { > -- > 2.16.4 >
On Thu, Apr 16, 2020 at 02:29:18PM +0200, Samuel Thibault wrote: > Juergen Gross, le jeu. 16 avril 2020 14:27:00 +0200, a ecrit: > > Limiting the number of event channels to 1024 is fine for 32-bit > > builds, but not for 64-bit ones. This might be a problem when using > > Xenstore-stubdom as the number of domains which can be supported is > > then limited to a little bit more than 1000. > > > > So raise the number of event channels to 4096 in 64-bit builds. > > > > Signed-off-by: Juergen Gross <jgross@suse.com> > > Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Applied.
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