From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:47829) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZJsrE-0001Dy-IV for qemu-devel@nongnu.org; Mon, 27 Jul 2015 20:35:01 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZJsrD-0005dd-PU for qemu-devel@nongnu.org; Mon, 27 Jul 2015 20:35:00 -0400 Received: from mail-qg0-x22a.google.com ([2607:f8b0:400d:c04::22a]:35571) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZJsrD-0005dY-Lt for qemu-devel@nongnu.org; Mon, 27 Jul 2015 20:34:59 -0400 Received: by qgii95 with SMTP id i95so64579053qgi.2 for ; Mon, 27 Jul 2015 17:34:59 -0700 (PDT) Sender: =?UTF-8?B?TWFyYy1BbmRyw6kgTHVyZWF1?= From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Date: Tue, 28 Jul 2015 02:32:38 +0200 Message-Id: <1438043577-28636-27-git-send-email-marcandre.lureau@redhat.com> In-Reply-To: <1438043577-28636-1-git-send-email-marcandre.lureau@redhat.com> References: <1438043577-28636-1-git-send-email-marcandre.lureau@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: [Qemu-devel] [PATCH v2 26/45] ivshmem: fix pci_ivshmem_exit() List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , drjones@redhat.com, cam@cs.ualberta.ca, =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , stefanha@redhat.com From: Marc-André Lureau Free all objects owned by the device, making sure the device is free, fixing hot-unplug. Signed-off-by: Marc-André Lureau --- hw/misc/ivshmem.c | 38 +++++++++++++++++++++++++++++++++++--- 1 file changed, 35 insertions(+), 3 deletions(-) diff --git a/hw/misc/ivshmem.c b/hw/misc/ivshmem.c index 2e9320b..df3bd9d 100644 --- a/hw/misc/ivshmem.c +++ b/hw/misc/ivshmem.c @@ -799,15 +799,47 @@ static void pci_ivshmem_realize(PCIDevice *dev, Error **errp) static void pci_ivshmem_exit(PCIDevice *dev) { IVShmemState *s = IVSHMEM(dev); + int i; + + fifo8_destroy(&s->incoming_fifo); if (s->migration_blocker) { migrate_del_blocker(s->migration_blocker); error_free(s->migration_blocker); } - memory_region_del_subregion(&s->bar, &s->ivshmem); - vmstate_unregister_ram(&s->ivshmem, DEVICE(dev)); - fifo8_destroy(&s->incoming_fifo); + if (s->shm_fd >= 0) { + void *addr = memory_region_get_ram_ptr(&s->ivshmem); + + vmstate_unregister_ram(&s->ivshmem, DEVICE(dev)); + memory_region_del_subregion(&s->bar, &s->ivshmem); + + if (munmap(addr, s->ivshmem_size) == -1) { + error_report("Failed to munmap shared memory %s", strerror(errno)); + } + } + + if (s->eventfd_chr) { + for (i = 0; i < s->vectors; i++) { + if (s->eventfd_chr[i]) { + qemu_chr_free(s->eventfd_chr[i]); + } + } + g_free(s->eventfd_chr); + } + + if (s->peers) { + for (i = 0; i < s->nb_peers; i++) { + close_guest_eventfds(s, i); + } + g_free(s->peers); + } + + if (ivshmem_has_feature(s, IVSHMEM_MSI)) { + msix_uninit_exclusive_bar(dev); + } + + g_free(s->eventfd_table); } static bool test_msix(void *opaque, int version_id) -- 2.4.3