From patchwork Tue Jul 28 00:32:38 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Marc-Andr=C3=A9_Lureau?= X-Patchwork-Id: 500986 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id E0F90140310 for ; Tue, 28 Jul 2015 10:51:12 +1000 (AEST) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b=fMrUwbK2; dkim-atps=neutral Received: from localhost ([::1]:56502 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZJt6t-0004wR-69 for incoming@patchwork.ozlabs.org; Mon, 27 Jul 2015 20:51:11 -0400 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) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-type:content-transfer-encoding; bh=hBYMnTnSZiSrw5TZtXNZ1FkLNlFi6W3NEzUQMR0MnUA=; b=fMrUwbK29WJeUPxr2ZYHCtSFuqjwZ6hIiqaVGi2EcMeDgjITr8E9yzzW9RNa+RwYO/ P8jTbTjsTwOlTnkJQ+btGHJF3x5x6mXkd1HaJb/BbRE8JGOlDaaVSXA+nAwGijrJaUtL yYTBGS8EXvAo5J0ht6kAVLEG3kZnbqTlI8+TsnwjnE0vqx1/L3A0UQ3jMUk/dRSk5U7W PVTpSLRA+gYNDcxI6ioEBx+N2YpW1Qrw/w7i1FwQdNa7p1/qDVQaQoFwsOEvHp2CHP2C eEvhuqAzgLJHX7zCOF4srM4fgFnRFobmx+hPsszvuMHJ8GgWQbGspsb1v4n7PUrwLk8F Xgcw== X-Received: by 10.140.83.84 with SMTP id i78mr45826783qgd.14.1438043699432; Mon, 27 Jul 2015 17:34:59 -0700 (PDT) Received: from localhost (APoitiers-257-1-37-212.w90-38.abo.wanadoo.fr. [90.38.212.212]) by smtp.gmail.com with ESMTPSA id o5sm10280715qko.49.2015.07.27.17.34.57 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 27 Jul 2015 17:34:58 -0700 (PDT) From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= To: qemu-devel@nongnu.org Date: Tue, 28 Jul 2015 02:32:38 +0200 Message-Id: <1438043577-28636-27-git-send-email-marcandre.lureau@redhat.com> X-Mailer: git-send-email 2.4.3 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 X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-Received-From: 2607:f8b0:400d:c04::22a 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 Subject: [Qemu-devel] [PATCH v2 26/45] ivshmem: fix pci_ivshmem_exit() X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org 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)