From patchwork Fri Aug 18 10:06:58 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aravinda Prasad X-Patchwork-Id: 9908213 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 5383060382 for ; Fri, 18 Aug 2017 10:08:48 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 44EE028C26 for ; Fri, 18 Aug 2017 10:08:48 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 39D6528C6E; Fri, 18 Aug 2017 10:08:48 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id A9B1E28C26 for ; Fri, 18 Aug 2017 10:08:47 +0000 (UTC) Received: from localhost ([::1]:40520 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dieCs-0002De-SB for patchwork-qemu-devel@patchwork.kernel.org; Fri, 18 Aug 2017 06:08:46 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:60004) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dieBW-0002AN-BU for qemu-devel@nongnu.org; Fri, 18 Aug 2017 06:07:24 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dieBT-0007mJ-6J for qemu-devel@nongnu.org; Fri, 18 Aug 2017 06:07:22 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:60943) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dieBS-0007ln-Tz for qemu-devel@nongnu.org; Fri, 18 Aug 2017 06:07:19 -0400 Received: from pps.filterd (m0098396.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id v7IA65Un005510 for ; Fri, 18 Aug 2017 06:07:17 -0400 Received: from e34.co.us.ibm.com (e34.co.us.ibm.com [32.97.110.152]) by mx0a-001b2d01.pphosted.com with ESMTP id 2cdsrdp0y5-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Fri, 18 Aug 2017 06:07:17 -0400 Received: from localhost by e34.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Fri, 18 Aug 2017 04:07:14 -0600 Received: from b03ledav005.gho.boulder.ibm.com (b03ledav005.gho.boulder.ibm.com [9.17.130.236]) by b03cxnp07028.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id v7IA75sp4915548; Fri, 18 Aug 2017 03:07:05 -0700 Received: from b03ledav005.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id DBACDBE040; Fri, 18 Aug 2017 04:07:04 -0600 (MDT) Received: from [127.0.1.1] (unknown [9.77.197.54]) by b03ledav005.gho.boulder.ibm.com (Postfix) with ESMTP id 2F3D9BE039; Fri, 18 Aug 2017 04:07:00 -0600 (MDT) From: Aravinda Prasad To: qemu-ppc@nongnu.org, qemu-devel@nongnu.org, david@gibson.dropbear.id.au Date: Fri, 18 Aug 2017 15:36:58 +0530 In-Reply-To: <150305073858.13788.4068645609072927349.stgit@aravinda> References: <150305073858.13788.4068645609072927349.stgit@aravinda> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 X-TM-AS-GCONF: 00 x-cbid: 17081810-0016-0000-0000-0000075C984B X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00007566; HX=3.00000241; KW=3.00000007; PH=3.00000004; SC=3.00000223; SDB=6.00904045; UDB=6.00452940; IPR=6.00684258; BA=6.00005538; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009; ZB=6.00000000; ZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00016752; XFM=3.00000015; UTC=2017-08-18 10:07:16 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17081810-0017-0000-0000-00003B164039 Message-Id: <150305081893.13788.14968273096361794664.stgit@aravinda> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-08-18_03:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=0 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1707230000 definitions=main-1708180159 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 148.163.156.1 Subject: [Qemu-devel] [PATCH v4 1/5] ppc: spapr: Register and handle HCALL to receive updated RTAS region X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: aik@ozlabs.ru, benh@au1.ibm.com, paulus@samba.org, sam.bobroff@au1.ibm.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP Receive updates from SLOF about the updated rtas-base. A separate patch for SLOF [1] adds functionality to invoke a private HCALL whenever OS issues instantiate-rtas with a new rtas-base. This is required as QEMU needs to know the updated rtas-base as it allocates error reporting structure in RTAS space upon a machine check exception. [1] https://lists.ozlabs.org/pipermail/linuxppc-dev/2014-August/120386.html Signed-off-by: Aravinda Prasad Reviewed-by: David Gibson --- hw/ppc/spapr_hcall.c | 8 ++++++++ include/hw/ppc/spapr.h | 4 +++- 2 files changed, 11 insertions(+), 1 deletion(-) diff --git a/hw/ppc/spapr_hcall.c b/hw/ppc/spapr_hcall.c index 72ea5a8..e66c72e 100644 --- a/hw/ppc/spapr_hcall.c +++ b/hw/ppc/spapr_hcall.c @@ -1062,6 +1062,13 @@ static target_ulong h_rtas(PowerPCCPU *cpu, sPAPRMachineState *spapr, nret, rtas_r3 + 12 + 4*nargs); } +static target_ulong h_rtas_update(PowerPCCPU *cpu, sPAPRMachineState *spapr, + target_ulong opcode, target_ulong *args) +{ + spapr->rtas_addr = args[0]; + return 0; +} + static target_ulong h_logical_load(PowerPCCPU *cpu, sPAPRMachineState *spapr, target_ulong opcode, target_ulong *args) { @@ -1717,6 +1724,7 @@ static void hypercall_register_types(void) /* qemu/KVM-PPC specific hcalls */ spapr_register_hypercall(KVMPPC_H_RTAS, h_rtas); + spapr_register_hypercall(KVMPPC_H_RTAS_UPDATE, h_rtas_update); /* ibm,client-architecture-support support */ spapr_register_hypercall(KVMPPC_H_CAS, h_client_architecture_support); diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h index 2a303a7..46012b3 100644 --- a/include/hw/ppc/spapr.h +++ b/include/hw/ppc/spapr.h @@ -90,6 +90,7 @@ struct sPAPRMachineState { hwaddr rma_size; int vrma_adjust; + hwaddr rtas_addr; ssize_t rtas_size; void *rtas_blob; long kernel_size; @@ -399,7 +400,8 @@ struct sPAPRMachineState { #define KVMPPC_H_LOGICAL_MEMOP (KVMPPC_HCALL_BASE + 0x1) /* Client Architecture support */ #define KVMPPC_H_CAS (KVMPPC_HCALL_BASE + 0x2) -#define KVMPPC_HCALL_MAX KVMPPC_H_CAS +#define KVMPPC_H_RTAS_UPDATE (KVMPPC_HCALL_BASE + 0x3) +#define KVMPPC_HCALL_MAX KVMPPC_H_RTAS_UPDATE typedef struct sPAPRDeviceTreeUpdateHeader { uint32_t version_id;