From patchwork Fri May 23 00:41:58 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Edgar E. Iglesias" X-Patchwork-Id: 351669 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 1F7A3140082 for ; Fri, 23 May 2014 10:44:13 +1000 (EST) Received: from localhost ([::1]:40242 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Wndal-0000h3-40 for incoming@patchwork.ozlabs.org; Thu, 22 May 2014 20:44:11 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:43356) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WndaM-00007I-T4 for qemu-devel@nongnu.org; Thu, 22 May 2014 20:43:52 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WndaH-0005P5-EC for qemu-devel@nongnu.org; Thu, 22 May 2014 20:43:46 -0400 Received: from mail-qc0-x230.google.com ([2607:f8b0:400d:c01::230]:55044) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WndaH-0005P1-93 for qemu-devel@nongnu.org; Thu, 22 May 2014 20:43:41 -0400 Received: by mail-qc0-f176.google.com with SMTP id r5so7028660qcx.7 for ; Thu, 22 May 2014 17:43:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=E51Bvj+7nPE0VfuRHsAniUvbsd7mFIWkpbzjbhhCk70=; b=z0ePcseS5W/L+02IVYScsUStZ2g7WZpHOx0SLP3CMbPkoS+P2A/BTAInrJht++wlrC z2P0tie+Z8I/DyETfn2mswMzYLeQA9GwLJq8UTg2HgGCIH9h6nAJGDuRzYFse0J2GC2g 6JO39uLab+3X5Xkac600AdEh1D0Ri7ME1kod/eVGBfaLjuwu5TiwZstwz2NxGdv1M7jN /b/LFvewxhohGZpNPAZg1CKx4keTUQVXAjoLzrUOSOG8f2xDyErE2iW5fnLo0DDpRSsp Bmj3JhGXEbl19Z6PQYYHsKV9Se6GYKBOBruwmGEdNyLkHVKPHGTJgfCf3j5xtEKbeOAC hp0A== X-Received: by 10.140.31.196 with SMTP id f62mr1481105qgf.59.1400805820771; Thu, 22 May 2014 17:43:40 -0700 (PDT) Received: from localhost ([203.126.243.116]) by mx.google.com with ESMTPSA id v49sm930153qgv.20.2014.05.22.17.43.34 for (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Thu, 22 May 2014 17:43:39 -0700 (PDT) From: "Edgar E. Iglesias" To: qemu-devel@nongnu.org, peter.maydell@linaro.org Date: Fri, 23 May 2014 10:41:58 +1000 Message-Id: <1400805738-11889-2-git-send-email-edgar.iglesias@gmail.com> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: <1400805738-11889-1-git-send-email-edgar.iglesias@gmail.com> References: <1400805738-11889-1-git-send-email-edgar.iglesias@gmail.com> X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-Received-From: 2607:f8b0:400d:c01::230 Cc: rob.herring@linaro.org, peter.crosthwaite@xilinx.com, aggelerf@ethz.ch, agraf@suse.de, john.williams@xilinx.com, alex.bennee@linaro.org, christoffer.dall@linaro.org, rth@twiddle.net Subject: [Qemu-devel] [PATCH v4 01/21] target-arm: Make elr_el1 an array X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: "Edgar E. Iglesias" No functional change. Prepares for future additions of the EL2 and 3 versions of this reg. Reviewed-by: Peter Crosthwaite Signed-off-by: Edgar E. Iglesias --- target-arm/cpu.h | 2 +- target-arm/helper-a64.c | 4 ++-- target-arm/helper.c | 3 ++- target-arm/kvm64.c | 4 ++-- target-arm/machine.c | 2 +- target-arm/op_helper.c | 6 +++--- 6 files changed, 11 insertions(+), 10 deletions(-) diff --git a/target-arm/cpu.h b/target-arm/cpu.h index c83f249..19013ad 100644 --- a/target-arm/cpu.h +++ b/target-arm/cpu.h @@ -162,7 +162,7 @@ typedef struct CPUARMState { uint32_t condexec_bits; /* IT bits. cpsr[15:10,26:25]. */ uint64_t daif; /* exception masks, in the bits they are in in PSTATE */ - uint64_t elr_el1; /* AArch64 ELR_EL1 */ + uint64_t elr_el[2]; /* AArch64 exception link regs */ uint64_t sp_el[2]; /* AArch64 banked stack pointers */ /* System control coprocessor (cp15) */ diff --git a/target-arm/helper-a64.c b/target-arm/helper-a64.c index bf921cc..7e5073b 100644 --- a/target-arm/helper-a64.c +++ b/target-arm/helper-a64.c @@ -491,13 +491,13 @@ void aarch64_cpu_do_interrupt(CPUState *cs) env->banked_spsr[0] = pstate_read(env); env->sp_el[arm_current_pl(env)] = env->xregs[31]; env->xregs[31] = env->sp_el[1]; - env->elr_el1 = env->pc; + env->elr_el[1] = env->pc; } else { env->banked_spsr[0] = cpsr_read(env); if (!env->thumb) { env->cp15.esr_el1 |= 1 << 25; } - env->elr_el1 = env->regs[15]; + env->elr_el[1] = env->regs[15]; for (i = 0; i < 15; i++) { env->xregs[i] = env->regs[i]; diff --git a/target-arm/helper.c b/target-arm/helper.c index 417161e..6d6601e 100644 --- a/target-arm/helper.c +++ b/target-arm/helper.c @@ -2055,7 +2055,8 @@ static const ARMCPRegInfo v8_cp_reginfo[] = { { .name = "ELR_EL1", .state = ARM_CP_STATE_AA64, .type = ARM_CP_NO_MIGRATE, .opc0 = 3, .opc1 = 0, .crn = 4, .crm = 0, .opc2 = 1, - .access = PL1_RW, .fieldoffset = offsetof(CPUARMState, elr_el1) }, + .access = PL1_RW, + .fieldoffset = offsetof(CPUARMState, elr_el[1]) }, { .name = "SPSR_EL1", .state = ARM_CP_STATE_AA64, .type = ARM_CP_NO_MIGRATE, .opc0 = 3, .opc1 = 0, .crn = 4, .crm = 0, .opc2 = 0, diff --git a/target-arm/kvm64.c b/target-arm/kvm64.c index c729b9e..70f311b 100644 --- a/target-arm/kvm64.c +++ b/target-arm/kvm64.c @@ -161,7 +161,7 @@ int kvm_arch_put_registers(CPUState *cs, int level) } reg.id = AARCH64_CORE_REG(elr_el1); - reg.addr = (uintptr_t) &env->elr_el1; + reg.addr = (uintptr_t) &env->elr_el[1]; ret = kvm_vcpu_ioctl(cs, KVM_SET_ONE_REG, ®); if (ret) { return ret; @@ -241,7 +241,7 @@ int kvm_arch_get_registers(CPUState *cs) } reg.id = AARCH64_CORE_REG(elr_el1); - reg.addr = (uintptr_t) &env->elr_el1; + reg.addr = (uintptr_t) &env->elr_el[1]; ret = kvm_vcpu_ioctl(cs, KVM_GET_ONE_REG, ®); if (ret) { return ret; diff --git a/target-arm/machine.c b/target-arm/machine.c index 5092dcd..b0fa46d 100644 --- a/target-arm/machine.c +++ b/target-arm/machine.c @@ -238,7 +238,7 @@ const VMStateDescription vmstate_arm_cpu = { VMSTATE_UINT32_ARRAY(env.banked_r14, ARMCPU, 6), VMSTATE_UINT32_ARRAY(env.usr_regs, ARMCPU, 5), VMSTATE_UINT32_ARRAY(env.fiq_regs, ARMCPU, 5), - VMSTATE_UINT64(env.elr_el1, ARMCPU), + VMSTATE_UINT64(env.elr_el[1], ARMCPU), VMSTATE_UINT64_ARRAY(env.sp_el, ARMCPU, 2), /* The length-check must come before the arrays to avoid * incoming data possibly overflowing the array. diff --git a/target-arm/op_helper.c b/target-arm/op_helper.c index fb90676..f120b02 100644 --- a/target-arm/op_helper.c +++ b/target-arm/op_helper.c @@ -406,7 +406,7 @@ void HELPER(exception_return)(CPUARMState *env) env->regs[i] = env->xregs[i]; } - env->regs[15] = env->elr_el1 & ~0x1; + env->regs[15] = env->elr_el[1] & ~0x1; } else { new_el = extract32(spsr, 2, 2); if (new_el > 1) { @@ -424,7 +424,7 @@ void HELPER(exception_return)(CPUARMState *env) env->aarch64 = 1; pstate_write(env, spsr); env->xregs[31] = env->sp_el[new_el]; - env->pc = env->elr_el1; + env->pc = env->elr_el[1]; } return; @@ -438,7 +438,7 @@ illegal_return: * no change to exception level, execution state or stack pointer */ env->pstate |= PSTATE_IL; - env->pc = env->elr_el1; + env->pc = env->elr_el[1]; spsr &= PSTATE_NZCV | PSTATE_DAIF; spsr |= pstate_read(env) & ~(PSTATE_NZCV | PSTATE_DAIF); pstate_write(env, spsr);