From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.2 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,UNWANTED_LANGUAGE_BODY,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4C49DC35242 for ; Tue, 11 Feb 2020 18:18:35 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 2D43E20708 for ; Tue, 11 Feb 2020 18:18:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="hpAqAxm+"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="fDNPjgXd" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2D43E20708 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=vDh+tTSsGEWCpJaxdjwpYkljDMD13JNjulI4QNvpTZw=; b=hpAqAxm+HayowL w+CpyyrM9sWwFeAPsjqj8JAWMwXaRgLgUz/+U+Q18OiGuVnpIfg2LH4WwHGuKidH9cufgGNwC0nlK y/EFrECLQTWVgGRDtHnZFfdgW0z+t+NrG8yEFy+cPhhSiIVPRa+fJ1bDtpuhjt1qFJStWxbMGexCx 88iiSZM1vwfEVj1v7+VExF6HUk85hkZfEqHFnbq3aoownOYzae+iCaAn6YtutF5bRR6tE6O4qSxkG yg6qR52kj1eNDtLw3ebtJ1suRZ7CipQ5FsXMNxosT8fLZe1qKpXbaYavDHADtRH1kBKReawjfvosL CbddKhOBfZ49wadm4e8Q==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1j1a76-0005aY-U5; Tue, 11 Feb 2020 18:18:24 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1j1Zj6-0003S8-MD for linux-arm-kernel@lists.infradead.org; Tue, 11 Feb 2020 17:53:38 +0000 Received: from disco-boy.misterjones.org (disco-boy.misterjones.org [51.254.78.96]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 1E47220870; Tue, 11 Feb 2020 17:53:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581443616; bh=/d4QEu6KExCVn1Nyc6BoOADlVZV4Bz226l2YxJeUdxQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fDNPjgXdR4X4fmVLG0KXib1sFo/eJ7toCHhIgi7nIdKzE8hMWc7Dp71j+BgEBUpak 4FPgyg+b7PchSyJiFtqaoCVZX4GQaL3WHWtHWu6rAUNzGevpbof+9qmnI1f9uaicb3 4X0gm0vDK18sR2RCEdbxvo/dELdcjaM6qyutqOms= Received: from 78.163-31-62.static.virginmediabusiness.co.uk ([62.31.163.78] helo=why.lan) by disco-boy.misterjones.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1j1ZgI-004O7k-Hg; Tue, 11 Feb 2020 17:50:42 +0000 From: Marc Zyngier To: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org Subject: [PATCH v2 83/94] KVM: arm64: VNCR-ize ELR_EL1 Date: Tue, 11 Feb 2020 17:49:27 +0000 Message-Id: <20200211174938.27809-84-maz@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200211174938.27809-1-maz@kernel.org> References: <20200211174938.27809-1-maz@kernel.org> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 62.31.163.78 X-SA-Exim-Rcpt-To: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, andre.przywara@arm.com, christoffer.dall@arm.com, Dave.Martin@arm.com, jintack@cs.columbia.edu, alexandru.elisei@arm.com, james.morse@arm.com, julien.thierry.kdev@gmail.com, suzuki.poulose@arm.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200211_095336_782380_BC7C8098 X-CRM114-Status: GOOD ( 13.25 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Suzuki K Poulose , Andre Przywara , Christoffer Dall , Dave Martin , James Morse , Alexandru Elisei , Jintack Lim , Julien Thierry Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org ELR_EL1 being a VNCR-capable register, let's flag it as such, and repaint all the accesses Signed-off-by: Marc Zyngier --- arch/arm64/include/asm/kvm_emulate.h | 2 +- arch/arm64/include/asm/kvm_host.h | 2 +- arch/arm64/kvm/guest.c | 2 +- arch/arm64/kvm/hyp/sysreg-sr.c | 4 ++-- arch/arm64/kvm/sys_regs.c | 4 ++-- 5 files changed, 7 insertions(+), 7 deletions(-) diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h index 16cd99ab7170..5718fbc56ba5 100644 --- a/arch/arm64/include/asm/kvm_emulate.h +++ b/arch/arm64/include/asm/kvm_emulate.h @@ -164,7 +164,7 @@ static inline unsigned long *vcpu_pc(const struct kvm_vcpu *vcpu) static inline unsigned long *__vcpu_elr_el1(const struct kvm_vcpu *vcpu) { - return (unsigned long *)&vcpu->arch.ctxt.elr_el1; + return (unsigned long *)__ctxt_sys_reg(&vcpu->arch.ctxt, ELR_EL1); } static inline unsigned long vcpu_read_elr_el1(const struct kvm_vcpu *vcpu) diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 29ecd13ab4e2..a497e7970418 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -264,6 +264,7 @@ enum vcpu_sysreg { VNCR(CONTEXTIDR_EL1), /* Context ID Register */ VNCR(AMAIR_EL1),/* Aux Memory Attribute Indirection Register */ VNCR(MDSCR_EL1),/* Monitor Debug System Control Register */ + VNCR(ELR_EL1), VNCR(VPIDR_EL2),/* Virtualization Processor ID Register */ VNCR(VMPIDR_EL2),/* Virtualization Multiprocessor ID Register */ VNCR(HCR_EL2), /* Hypervisor Configuration Register */ @@ -335,7 +336,6 @@ struct kvm_cpu_context { struct user_pt_regs regs; /* sp = sp_el0 */ u64 sp_el1; - u64 elr_el1; u64 spsr[KVM_NR_SPSR]; diff --git a/arch/arm64/kvm/guest.c b/arch/arm64/kvm/guest.c index fb416f624920..40ef6758266d 100644 --- a/arch/arm64/kvm/guest.c +++ b/arch/arm64/kvm/guest.c @@ -128,7 +128,7 @@ static void *core_reg_addr(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg) return &vcpu->arch.ctxt.sp_el1; case KVM_REG_ARM_CORE_REG(elr_el1): - return &vcpu->arch.ctxt.elr_el1; + return __vcpu_elr_el1(vcpu); case KVM_REG_ARM_CORE_REG(spsr[0]) ... KVM_REG_ARM_CORE_REG(spsr[KVM_NR_SPSR - 1]): diff --git a/arch/arm64/kvm/hyp/sysreg-sr.c b/arch/arm64/kvm/hyp/sysreg-sr.c index 8b07be72f2e7..10ce7a6a0c6c 100644 --- a/arch/arm64/kvm/hyp/sysreg-sr.c +++ b/arch/arm64/kvm/hyp/sysreg-sr.c @@ -59,7 +59,7 @@ static void __hyp_text __sysreg_save_vel1_state(struct kvm_cpu_context *ctxt) ctxt_sys_reg(ctxt, CNTKCTL_EL1) = read_sysreg_el1(SYS_CNTKCTL); ctxt->sp_el1 = read_sysreg(sp_el1); - ctxt->elr_el1 = read_sysreg_el1(SYS_ELR); + ctxt_sys_reg(ctxt, ELR_EL1) = read_sysreg_el1(SYS_ELR); ctxt->spsr[KVM_SPSR_EL1] = read_sysreg_el1(SYS_SPSR); } @@ -324,7 +324,7 @@ static void __hyp_text __sysreg_restore_vel1_state(struct kvm_cpu_context *ctxt) } write_sysreg(ctxt->sp_el1, sp_el1); - write_sysreg_el1(ctxt->elr_el1, SYS_ELR); + write_sysreg_el1(ctxt_sys_reg(ctxt, ELR_EL1), SYS_ELR); write_sysreg_el1(ctxt->spsr[KVM_SPSR_EL1], SYS_SPSR); } diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index d59fc246aee3..dc1b75a37f00 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -1833,9 +1833,9 @@ static bool access_elr(struct kvm_vcpu *vcpu, return false; if (p->is_write) - vcpu->arch.ctxt.elr_el1 = p->regval; + *__vcpu_elr_el1(vcpu) = p->regval; else - p->regval = vcpu->arch.ctxt.elr_el1; + p->regval = *__vcpu_elr_el1(vcpu); return true; } -- 2.20.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel