From patchwork Wed Jul 3 16:56:05 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mihai Caraman X-Patchwork-Id: 256706 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 8E5BA2C02BB for ; Thu, 4 Jul 2013 02:56:23 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933071Ab3GCQ4S (ORCPT ); Wed, 3 Jul 2013 12:56:18 -0400 Received: from mail-db8lp0184.outbound.messaging.microsoft.com ([213.199.154.184]:30024 "EHLO db8outboundpool.messaging.microsoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933191Ab3GCQ4R (ORCPT ); Wed, 3 Jul 2013 12:56:17 -0400 Received: from mail86-db8-R.bigfish.com (10.174.8.238) by DB8EHSOBE035.bigfish.com (10.174.4.98) with Microsoft SMTP Server id 14.1.225.23; Wed, 3 Jul 2013 16:56:16 +0000 Received: from mail86-db8 (localhost [127.0.0.1]) by mail86-db8-R.bigfish.com (Postfix) with ESMTP id 0E276C000D7; Wed, 3 Jul 2013 16:56:16 +0000 (UTC) X-Forefront-Antispam-Report: CIP:70.37.183.190; KIP:(null); UIP:(null); IPV:NLI; H:mail.freescale.net; RD:none; EFVD:NLI X-SpamScore: 0 X-BigFish: VS0(zzzz1f42h1ee6h1de0h1fdah2073h1202h1e76h1d1ah1d2ah1fc6hzz8275bhz2dh2a8h668h839hd24he5bhf0ah1288h12a5h12a9h12bdh12e5h137ah139eh13b6h1441h1504h1537h162dh1631h1758h1898h18e1h1946h19b5h1ad9h1b0ah1d0ch1d2eh1d3fh1dc1h1dfeh1dffh1e23h1155h) Received: from mail86-db8 (localhost.localdomain [127.0.0.1]) by mail86-db8 (MessageSwitch) id 1372870573318949_5510; Wed, 3 Jul 2013 16:56:13 +0000 (UTC) Received: from DB8EHSMHS032.bigfish.com (unknown [10.174.8.229]) by mail86-db8.bigfish.com (Postfix) with ESMTP id 3F8E27A0046; Wed, 3 Jul 2013 16:56:13 +0000 (UTC) Received: from mail.freescale.net (70.37.183.190) by DB8EHSMHS032.bigfish.com (10.174.4.42) with Microsoft SMTP Server (TLS) id 14.16.227.3; Wed, 3 Jul 2013 16:56:12 +0000 Received: from az84smr01.freescale.net (10.64.34.197) by 039-SN1MMR1-004.039d.mgd.msft.net (10.84.1.14) with Microsoft SMTP Server (TLS) id 14.2.328.11; Wed, 3 Jul 2013 16:56:10 +0000 Received: from fsr-fed1364-13.ea.freescale.net (fsr-fed1364-13.ea.freescale.net [10.171.81.124]) by az84smr01.freescale.net (8.14.3/8.14.0) with ESMTP id r63Gu8M1008994; Wed, 3 Jul 2013 09:56:09 -0700 From: Mihai Caraman To: CC: , , Mihai Caraman Subject: [PATCH 1/2] powerpc/booke64: Add LRAT error exception handler Date: Wed, 3 Jul 2013 19:56:05 +0300 Message-ID: <1372870566-11299-1-git-send-email-mihai.caraman@freescale.com> X-Mailer: git-send-email 1.7.3.4 MIME-Version: 1.0 X-OriginatorOrg: freescale.com X-FOPE-CONNECTOR: Id%0$Dn%*$RO%0$TLS%0$FQDN%$TlsDn% Sender: kvm-ppc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm-ppc@vger.kernel.org Add LRAT (Logical to Real Address Translation) error exception handler to Booke3E 64-bit kernel. LRAT support in KVM will follow afterwards. Signed-off-by: Mihai Caraman --- arch/powerpc/include/asm/kvm_asm.h | 1 + arch/powerpc/include/asm/reg_booke.h | 1 + arch/powerpc/kernel/exceptions-64e.S | 14 ++++++++++++++ 3 files changed, 16 insertions(+), 0 deletions(-) diff --git a/arch/powerpc/include/asm/kvm_asm.h b/arch/powerpc/include/asm/kvm_asm.h index 851bac7..83b91e5 100644 --- a/arch/powerpc/include/asm/kvm_asm.h +++ b/arch/powerpc/include/asm/kvm_asm.h @@ -74,6 +74,7 @@ #define BOOKE_INTERRUPT_GUEST_DBELL_CRIT 39 #define BOOKE_INTERRUPT_HV_SYSCALL 40 #define BOOKE_INTERRUPT_HV_PRIV 41 +#define BOOKE_INTERRUPT_LRAT_ERROR 42 /* book3s */ diff --git a/arch/powerpc/include/asm/reg_booke.h b/arch/powerpc/include/asm/reg_booke.h index b417de3..6b113e1 100644 --- a/arch/powerpc/include/asm/reg_booke.h +++ b/arch/powerpc/include/asm/reg_booke.h @@ -101,6 +101,7 @@ #define SPRN_IVOR39 0x1B1 /* Interrupt Vector Offset Register 39 */ #define SPRN_IVOR40 0x1B2 /* Interrupt Vector Offset Register 40 */ #define SPRN_IVOR41 0x1B3 /* Interrupt Vector Offset Register 41 */ +#define SPRN_IVOR42 0x1B4 /* Interrupt Vector Offset Register 42 */ #define SPRN_GIVOR2 0x1B8 /* Guest IVOR2 */ #define SPRN_GIVOR3 0x1B9 /* Guest IVOR3 */ #define SPRN_GIVOR4 0x1BA /* Guest IVOR4 */ diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S index 0c379e9..e08b469 100644 --- a/arch/powerpc/kernel/exceptions-64e.S +++ b/arch/powerpc/kernel/exceptions-64e.S @@ -308,6 +308,7 @@ interrupt_base_book3e: /* fake trap */ EXCEPTION_STUB(0x2e0, guest_doorbell_crit) EXCEPTION_STUB(0x300, hypercall) EXCEPTION_STUB(0x320, ehpriv) + EXCEPTION_STUB(0x340, lrat_error) .globl interrupt_end_book3e interrupt_end_book3e: @@ -676,6 +677,17 @@ kernel_dbg_exc: bl .unknown_exception b .ret_from_except +/* LRAT Error interrupt */ + START_EXCEPTION(lrat_error); + NORMAL_EXCEPTION_PROLOG(0x340, BOOKE_INTERRUPT_LRAT_ERROR, + PROLOG_ADDITION_NONE) + EXCEPTION_COMMON(0x340, PACA_EXGEN, INTS_KEEP) + addi r3,r1,STACK_FRAME_OVERHEAD + bl .save_nvgprs + INTS_RESTORE_HARD + bl .unknown_exception + b .ret_from_except + /* * An interrupt came in while soft-disabled; We mark paca->irq_happened * accordingly and if the interrupt is level sensitive, we hard disable @@ -858,6 +870,7 @@ BAD_STACK_TRAMPOLINE(0x2e0) BAD_STACK_TRAMPOLINE(0x300) BAD_STACK_TRAMPOLINE(0x310) BAD_STACK_TRAMPOLINE(0x320) +BAD_STACK_TRAMPOLINE(0x340) BAD_STACK_TRAMPOLINE(0x400) BAD_STACK_TRAMPOLINE(0x500) BAD_STACK_TRAMPOLINE(0x600) @@ -1410,6 +1423,7 @@ _GLOBAL(setup_doorbell_ivors) _GLOBAL(setup_ehv_ivors) SET_IVOR(40, 0x300) /* Embedded Hypervisor System Call */ SET_IVOR(41, 0x320) /* Embedded Hypervisor Privilege */ + SET_IVOR(42, 0x340) /* LRAT Error */ SET_IVOR(38, 0x2c0) /* Guest Processor Doorbell */ SET_IVOR(39, 0x2e0) /* Guest Processor Doorbell Crit/MC */ blr