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| author | Anthony PERARD <anthony.perard@citrix.com> | 2021-04-30 17:37:42 +0100 |
|---|---|---|
| committer | Anthony PERARD <anthony.perard@citrix.com> | 2021-05-10 13:43:58 +0100 |
| commit | f1e43b6026500690fc402828fa7cc735175b93b6 (patch) | |
| tree | c09900d3911313d41ee017763ce6a3ffc41be65f | |
| parent | 3e81a71c9f3d23002b1e0dfff902c155d6c8d224 (diff) | |
| download | qemu-f1e43b6026500690fc402828fa7cc735175b93b6.zip qemu-f1e43b6026500690fc402828fa7cc735175b93b6.tar.gz qemu-f1e43b6026500690fc402828fa7cc735175b93b6.tar.bz2 | |
xen: Free xenforeignmemory_resource at exit
Because Coverity complains about it and this is one leak that Valgrind
reports.
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: Paul Durrant <paul@xen.org>
Message-Id: <20210430163742.469739-1-anthony.perard@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
| -rw-r--r-- | hw/i386/xen/xen-hvm.c | 9 | ||||
| -rw-r--r-- | include/hw/xen/xen_common.h | 6 |
2 files changed, 12 insertions, 3 deletions
diff --git a/hw/i386/xen/xen-hvm.c b/hw/i386/xen/xen-hvm.c index c53fa17..9b43277 100644 --- a/hw/i386/xen/xen-hvm.c +++ b/hw/i386/xen/xen-hvm.c @@ -108,6 +108,7 @@ typedef struct XenIOState { shared_iopage_t *shared_page; shared_vmport_iopage_t *shared_vmport_page; buffered_iopage_t *buffered_io_page; + xenforeignmemory_resource_handle *fres; QEMUTimer *buffered_io_timer; CPUState **cpu_by_vcpu_id; /* the evtchn port for polling the notification, */ @@ -1253,6 +1254,9 @@ static void xen_exit_notifier(Notifier *n, void *data) XenIOState *state = container_of(n, XenIOState, exit); xen_destroy_ioreq_server(xen_domid, state->ioservid); + if (state->fres != NULL) { + xenforeignmemory_unmap_resource(xen_fmem, state->fres); + } xenevtchn_close(state->xce_handle); xs_daemon_close(state->xenstore); @@ -1320,7 +1324,6 @@ static void xen_wakeup_notifier(Notifier *notifier, void *data) static int xen_map_ioreq_server(XenIOState *state) { void *addr = NULL; - xenforeignmemory_resource_handle *fres; xen_pfn_t ioreq_pfn; xen_pfn_t bufioreq_pfn; evtchn_port_t bufioreq_evtchn; @@ -1332,12 +1335,12 @@ static int xen_map_ioreq_server(XenIOState *state) */ QEMU_BUILD_BUG_ON(XENMEM_resource_ioreq_server_frame_bufioreq != 0); QEMU_BUILD_BUG_ON(XENMEM_resource_ioreq_server_frame_ioreq(0) != 1); - fres = xenforeignmemory_map_resource(xen_fmem, xen_domid, + state->fres = xenforeignmemory_map_resource(xen_fmem, xen_domid, XENMEM_resource_ioreq_server, state->ioservid, 0, 2, &addr, PROT_READ | PROT_WRITE, 0); - if (fres != NULL) { + if (state->fres != NULL) { trace_xen_map_resource_ioreq(state->ioservid, addr); state->buffered_io_page = addr; state->shared_page = addr + TARGET_PAGE_SIZE; diff --git a/include/hw/xen/xen_common.h b/include/hw/xen/xen_common.h index 82e5633..a8118b4 100644 --- a/include/hw/xen/xen_common.h +++ b/include/hw/xen/xen_common.h @@ -134,6 +134,12 @@ static inline xenforeignmemory_resource_handle *xenforeignmemory_map_resource( return NULL; } +static inline int xenforeignmemory_unmap_resource( + xenforeignmemory_handle *fmem, xenforeignmemory_resource_handle *fres) +{ + return 0; +} + #endif /* CONFIG_XEN_CTRL_INTERFACE_VERSION < 41100 */ #if CONFIG_XEN_CTRL_INTERFACE_VERSION < 41000 |