From patchwork Thu Apr 21 09:16:15 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stephan Mueller X-Patchwork-Id: 8898121 X-Patchwork-Delegate: herbert@gondor.apana.org.au Return-Path: X-Original-To: patchwork-linux-crypto@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 36788BF29F for ; Thu, 21 Apr 2016 09:23:25 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 6A40320256 for ; Thu, 21 Apr 2016 09:23:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 92784200DF for ; Thu, 21 Apr 2016 09:23:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752414AbcDUJVh (ORCPT ); Thu, 21 Apr 2016 05:21:37 -0400 Received: from mail.eperm.de ([89.247.134.16]:52826 "EHLO mail.eperm.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752232AbcDUJVc (ORCPT ); Thu, 21 Apr 2016 05:21:32 -0400 Received: from positron.chronox.de (mail.eperm.de [89.247.134.16]) by mail.eperm.de (Postfix) with ESMTPA id 751172A0048; Thu, 21 Apr 2016 11:21:29 +0200 (CEST) From: Stephan Mueller To: Ted Tso , herbert@gondor.apana.org.au Cc: linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, sandyinchina@gmail.com, "K. Y. Srinivasan" , Haiyang Zhang , devel@linuxdriverproject.org Subject: [PATCH 6/6] hyperv IRQ handler: trigger LRNG Date: Thu, 21 Apr 2016 11:16:15 +0200 Message-ID: <11692471.NfkVINnMCh@positron.chronox.de> User-Agent: KMail/4.14.10 (Linux/4.4.6-301.fc23.x86_64; KDE/4.14.18; x86_64; ; ) In-Reply-To: <9192755.iDgo3Omyqe@positron.chronox.de> References: <9192755.iDgo3Omyqe@positron.chronox.de> MIME-Version: 1.0 Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org X-Spam-Status: No, score=-7.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The Hyper-V Linux Integration Services use the VMBus implementation for communication with the Hypervisor. VMBus registers its own interrupt handler that completely bypasses the common Linux interrupt handling. The interrupt handler is now added the invocation of the LRNG IRQ collection function to also benefit from entropy under Hyper-V. If the implementation of the VMBus and its subordinate drivers is changed such that they resemble the Xen implementation where the received IRQs are forwarded to the standard Linux interrupt handling logic, this patch should be dropped. Signed-off-by: Stephan Mueller --- drivers/hv/vmbus_drv.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c index 64713ff..afa2de0 100644 --- a/drivers/hv/vmbus_drv.c +++ b/drivers/hv/vmbus_drv.c @@ -41,6 +41,7 @@ #include #include #include +#include #include "hyperv_vmbus.h" static struct acpi_device *hv_acpi_dev; @@ -801,6 +802,8 @@ static void vmbus_isr(void) else tasklet_schedule(hv_context.msg_dpc[cpu]); } + + lrng_irq_process(); }