Juergen Gross 68e6b7fc11 tools/libs/evtchn: fix locking in Mini-OS ...

When adding locking to tools/libs/evtchn/minios.c a semaphore was
used. This can result in deadlocks, as the lock is taken inside the
event handler, which can interrupt an already locked region.

The fix is rather simple, as Mini-OS is supporting a single vcpu
only. So instead of the semaphore it is enough to disable interrupts
when operating on the port list.

Fixes: bc4fe94a69 ("ools/libs/evtchn: replace assert()s in stubdom with proper locking")
Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>

2023-12-14 10:55:24 +01:00

..

core.c

tools/libs/evtchn: Deduplicate xenevtchn_fd()

2022-01-12 10:49:05 +00:00

freebsd.c

tools/libs/evtchn: don't set errno to negative values

2022-04-22 20:39:34 +01:00

libxenevtchn.map

tools/libxenevtchn: add possibility to not close file descriptor on exec

2021-01-15 11:44:47 +00:00

linux.c

tools/libs/evtchn: Deduplicate xenevtchn_fd()

2022-01-12 10:49:05 +00:00

Makefile

libs: Fix auto-generation of version-script for unstable libs

2023-02-07 15:17:53 +01:00

Makefile.common

tools/libs: create Makefile.common to be used by stubdom build system

2022-06-16 16:58:50 +01:00

minios.c

tools/libs/evtchn: fix locking in Mini-OS

2023-12-14 10:55:24 +01:00

netbsd.c

tools/libs/evtchn: don't set errno to negative values

2022-04-22 20:39:34 +01:00

private.h

tools/libxenevtchn: propagate xenevtchn_open() flags parameter

2021-01-15 11:44:47 +00:00

solaris.c

tools/libs/evtchn: don't set errno to negative values

2022-04-22 20:39:34 +01:00