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Violators will be prosecuted; Wed, 16 Aug 2017 05:12:18 -0400 Received: from b01ledav006.gho.pok.ibm.com (b01ledav006.gho.pok.ibm.com [9.57.199.111]) by b01cxnp22033.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id v7G9CGbO23199842; Wed, 16 Aug 2017 09:12:16 GMT Received: from b01ledav006.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 29158AC03F; Wed, 16 Aug 2017 05:12:36 -0400 (EDT) Received: from [127.0.1.1] (unknown [9.124.35.220]) by b01ledav006.gho.pok.ibm.com (Postfix) with ESMTP id 2081CAC03A; Wed, 16 Aug 2017 05:12:33 -0400 (EDT) From: Aravinda Prasad To: qemu-ppc@nongnu.org, qemu-devel@nongnu.org, david@gibson.dropbear.id.au Date: Wed, 16 Aug 2017 14:42:13 +0530 In-Reply-To: <150287457293.9760.17827532208744487789.stgit@aravinda> References: <150287457293.9760.17827532208744487789.stgit@aravinda> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 x-cbid: 17081609-0008-0000-0000-0000026F4E33 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00007554; HX=3.00000241; KW=3.00000007; PH=3.00000004; SC=3.00000221; SDB=6.00903067; UDB=6.00452354; IPR=6.00683283; BA=6.00005536; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009; ZB=6.00000000; ZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00016717; XFM=3.00000015; UTC=2017-08-16 09:12:20 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17081609-0009-0000-0000-0000366438AA Message-Id: <150287473305.9760.9007559736340136424.stgit@aravinda> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-08-16_04:, , 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-1708160152 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 148.163.158.5 Subject: [Qemu-devel] [PATCH v3 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+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 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, sPAPRMac= hineState *spapr, nret, rtas_r3 + 12 + 4*nargs); } =20 +static target_ulong h_rtas_update(PowerPCCPU *cpu, sPAPRMachineState *spap= r, + target_ulong opcode, target_ulong *args) +{ + spapr->rtas_addr =3D args[0]; + return 0; +} + static target_ulong h_logical_load(PowerPCCPU *cpu, sPAPRMachineState *spa= pr, target_ulong opcode, target_ulong *args) { @@ -1717,6 +1724,7 @@ static void hypercall_register_types(void) =20 /* qemu/KVM-PPC specific hcalls */ spapr_register_hypercall(KVMPPC_H_RTAS, h_rtas); + spapr_register_hypercall(KVMPPC_H_RTAS_UPDATE, h_rtas_update); =20 /* 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 { =20 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 =20 typedef struct sPAPRDeviceTreeUpdateHeader { uint32_t version_id;