| Message ID | 20200416122700.22620-1-jgross@suse.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | mini-os: allow 4096 event channels for 64-bit mini-os | expand |
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.
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 {
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(-)