From patchwork Thu May 21 22:53:23 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Tamas K Lengyel X-Patchwork-Id: 11564159 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id EC08790 for ; Thu, 21 May 2020 22:54:22 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id D1C3720823 for ; Thu, 21 May 2020 22:54:22 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D1C3720823 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1jbu4F-0003yp-GV; Thu, 21 May 2020 22:53:35 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1jbu4D-0003yZ-Rd for xen-devel@lists.xenproject.org; Thu, 21 May 2020 22:53:33 +0000 X-Inumbo-ID: e31c22f0-9bb5-11ea-ab77-12813bfff9fa Received: from mga09.intel.com (unknown [134.134.136.24]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id e31c22f0-9bb5-11ea-ab77-12813bfff9fa; Thu, 21 May 2020 22:53:29 +0000 (UTC) IronPort-SDR: y/I/yRtwb4qe2ZC/aI9RLUEPE5102Mu4foVGhb9fVcBXvM5xDjUchRi/rB57W3ogWUtHWy6CAc gm8VpqjOr7sA== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 May 2020 15:53:27 -0700 IronPort-SDR: 3ae7Lmt9oxNiI0YYrpyIj/B7bCMRzlEYzmBU++wyJZIwSlS8CUg+yeFKmhOlK192W871iSuXiI HtJKujlMEXIg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.73,419,1583222400"; d="scan'208";a="412567795" Received: from azehtab-mobl2.amr.corp.intel.com (HELO ubuntu.localdomain) ([10.255.68.236]) by orsmga004.jf.intel.com with ESMTP; 21 May 2020 15:53:26 -0700 From: Tamas K Lengyel To: xen-devel@lists.xenproject.org Subject: [PATCH for-4.14 2/2] tools/libxc: xc_memshr_fork with interrupts disabled Date: Thu, 21 May 2020 15:53:23 -0700 Message-Id: X-Mailer: git-send-email 2.25.1 In-Reply-To: <7666b5bba73a1410446789a0c4ea908376da3487.1590101479.git.tamas.lengyel@intel.com> References: <7666b5bba73a1410446789a0c4ea908376da3487.1590101479.git.tamas.lengyel@intel.com> MIME-Version: 1.0 X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Ian Jackson , Tamas K Lengyel , Wei Liu Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" Toolstack side for creating forks with interrupt injection disabled. Signed-off-by: Tamas K Lengyel Reviewed-by: Roger Pau Monné Acked-by: Ian Jackson --- tools/libxc/include/xenctrl.h | 3 ++- tools/libxc/xc_memshr.c | 4 +++- 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/tools/libxc/include/xenctrl.h b/tools/libxc/include/xenctrl.h index 45ff7db1e8..0ea839b72a 100644 --- a/tools/libxc/include/xenctrl.h +++ b/tools/libxc/include/xenctrl.h @@ -2242,7 +2242,8 @@ int xc_memshr_range_share(xc_interface *xch, int xc_memshr_fork(xc_interface *xch, uint32_t source_domain, uint32_t client_domain, - bool allow_with_iommu); + bool allow_with_iommu, + bool prohibit_interrupts); /* * Note: this function is only intended to be used on short-lived forks that diff --git a/tools/libxc/xc_memshr.c b/tools/libxc/xc_memshr.c index 2300cc7075..e2de1d3aa2 100644 --- a/tools/libxc/xc_memshr.c +++ b/tools/libxc/xc_memshr.c @@ -240,7 +240,7 @@ int xc_memshr_debug_gref(xc_interface *xch, } int xc_memshr_fork(xc_interface *xch, uint32_t pdomid, uint32_t domid, - bool allow_with_iommu) + bool allow_with_iommu, bool prohibit_interrupts) { xen_mem_sharing_op_t mso; @@ -251,6 +251,8 @@ int xc_memshr_fork(xc_interface *xch, uint32_t pdomid, uint32_t domid, if ( allow_with_iommu ) mso.u.fork.flags |= XENMEM_FORK_WITH_IOMMU_ALLOWED; + if ( prohibit_interrupts ) + mso.u.fork.flags |= XENMEM_FORK_PROHIBIT_INTERRUPTS; return xc_memshr_memop(xch, domid, &mso); }