From patchwork Fri Sep 11 00:01:05 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jake Oshins X-Patchwork-Id: 7156571 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: X-Original-To: patchwork-linux-pci@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 211099F314 for ; Fri, 11 Sep 2015 00:12:09 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 1083920824 for ; Fri, 11 Sep 2015 00:12:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2B6D920810 for ; Fri, 11 Sep 2015 00:12:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751438AbbIKAJ0 (ORCPT ); Thu, 10 Sep 2015 20:09:26 -0400 Received: from o1.f.az.sendgrid.net ([208.117.55.132]:25303 "EHLO o1.f.az.sendgrid.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751355AbbIKAJP (ORCPT ); Thu, 10 Sep 2015 20:09:15 -0400 X-Greylist: delayed 314 seconds by postgrey-1.27 at vger.kernel.org; Thu, 10 Sep 2015 20:09:13 EDT DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sendgrid.me; h=from:to:cc:subject:in-reply-to:references; s=smtpapi; bh=E8BkBSAdHFNjK3wDkIWv4YaqQOE=; b=uwISgabgSlnKzUVgW6mW0MUHRhuut vdOQKMxL6SzcME3wwIntDZTtHooLrAml+1vvqRwgdr7Y0dQ1VoA13NmGu4IZ5dB+ JpHvWVD1DnQ+yLQBtotY72UKUE2Uc9mpNvfydpLW203OKnM+YvNyNby8YHVTE0L5 He/YBFdMJ7XXB0= Received: by filter-177.sjc1.sendgrid.net with SMTP id filter-177.14219.55F21A922 2015-09-11 00:04:34.088676478 +0000 UTC Received: from jakeoshinsu2.jakeoshinsu2.d1.internal.cloudapp.net (unknown [104.210.40.47]) by ismtpd-046 (SG) with ESMTP id 14fb9b7c9d6.502f.1adba37 Fri, 11 Sep 2015 00:04:33 +0000 (UTC) From: jakeo@microsoft.com To: gregkh@linuxfoundation.org, kys@microsoft.com, linux-kernel@vger.kernel.org, devel@linuxdriverproject.org, olaf@aepfle.de, apw@canonical.com, vkuznets@redhat.com, linux-pci@vger.kernel.org, bhelgaas@google.com, tglx@linutronix.de Cc: Jake Oshins Subject: [PATCH v2 06/12] drivers:hv: Export do_hypercall() Date: Fri, 11 Sep 2015 00:01:05 +0000 Message-Id: <1441929670-10058-7-git-send-email-jakeo@microsoft.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1441929670-10058-1-git-send-email-jakeo@microsoft.com> References: <1441929670-10058-1-git-send-email-jakeo@microsoft.com> X-SG-EID: lfnueJVzSjg1mfuVqqukVH7tZvRy9mfCIcBnfbfzaMMWVgeXPdEksBJQKTtitQJWPVcXuQbc+eQ3UQ G7hCSdZPWr1aQHWy1rRnFI/DSPNttbgOPnz8rMadztq6+rzV2xBAcWkZ3YFY8YotxWn8OdtrE396X/ DFNDfHmwj8Hmprw= Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org X-Spam-Status: No, score=-6.4 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI, T_DKIM_INVALID, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY, URIBL_GREY 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 From: Jake Oshins This patch exposes the function that hv_vmbus.ko uses to make hypercalls. This is necessary for retargeting an interrupt when it is given a new affinity. Signed-off-by: Jake Oshins --- drivers/hv/hv.c | 3 ++- include/linux/hyperv.h | 1 + 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c index 6341be8..6d01649 100644 --- a/drivers/hv/hv.c +++ b/drivers/hv/hv.c @@ -91,7 +91,7 @@ static int query_hypervisor_info(void) /* * do_hypercall- Invoke the specified hypercall */ -static u64 do_hypercall(u64 control, void *input, void *output) +u64 do_hypercall(u64 control, void *input, void *output) { u64 input_address = (input) ? virt_to_phys(input) : 0; u64 output_address = (output) ? virt_to_phys(output) : 0; @@ -132,6 +132,7 @@ static u64 do_hypercall(u64 control, void *input, void *output) return hv_status_lo | ((u64)hv_status_hi << 32); #endif /* !x86_64 */ } +EXPORT_SYMBOL_GPL(do_hypercall); #ifdef CONFIG_X86_64 static cycle_t read_hv_clock_tsc(struct clocksource *arg) diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h index 02393b6..033fe59 100644 --- a/include/linux/hyperv.h +++ b/include/linux/hyperv.h @@ -983,6 +983,7 @@ int vmbus_allocate_mmio(struct resource **new, struct hv_device *device_obj, bool fb_overlap_ok); int vmbus_cpu_number_to_vp_number(int cpu_number); +u64 do_hypercall(u64 control, void *input, void *output); /** * VMBUS_DEVICE - macro used to describe a specific hyperv vmbus device