From patchwork Thu Jan 7 11:20:48 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marc Zyngier X-Patchwork-Id: 12003629 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=-17.0 required=3.0 tests=BAYES_00,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 10E1BC433E0 for ; Thu, 7 Jan 2021 11:22:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C00DD23142 for ; Thu, 7 Jan 2021 11:22:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727687AbhAGLWl (ORCPT ); Thu, 7 Jan 2021 06:22:41 -0500 Received: from mail.kernel.org ([198.145.29.99]:35924 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727149AbhAGLWk (ORCPT ); Thu, 7 Jan 2021 06:22:40 -0500 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 14B5E2333D; Thu, 7 Jan 2021 11:21:22 +0000 (UTC) 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) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94) (envelope-from ) id 1kxTM0-005p1o-8l; Thu, 07 Jan 2021 11:21:20 +0000 From: Marc Zyngier To: Paolo Bonzini Cc: Alexandru Elisei , Catalin Marinas , David Brazdil , Eric Auger , Mark Rutland , Nathan Chancellor , Qian Cai , Shannon Zhao , James Morse , Julien Thierry , Suzuki K Poulose , kernel-team@android.com, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH 05/18] KVM: arm64: Minor cleanup of hyp variables used in host Date: Thu, 7 Jan 2021 11:20:48 +0000 Message-Id: <20210107112101.2297944-6-maz@kernel.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210107112101.2297944-1-maz@kernel.org> References: <20210107112101.2297944-1-maz@kernel.org> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 62.31.163.78 X-SA-Exim-Rcpt-To: pbonzini@redhat.com, alexandru.elisei@arm.com, catalin.marinas@arm.com, dbrazdil@google.com, eric.auger@redhat.com, mark.rutland@arm.com, natechancellor@gmail.com, qcai@redhat.com, shannon.zhao@linux.alibaba.com, james.morse@arm.com, julien.thierry.kdev@gmail.com, suzuki.poulose@arm.com, kernel-team@android.com, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org From: David Brazdil Small cleanup moving declarations of hyp-exported variables to kvm_host.h and using macros to avoid having to refer to them with kvm_nvhe_sym() in host. No functional change intended. Signed-off-by: David Brazdil Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20201208142452.87237-5-dbrazdil@google.com --- arch/arm64/include/asm/kvm_host.h | 6 ++++++ arch/arm64/kvm/arm.c | 4 +--- arch/arm64/kvm/hyp/nvhe/hyp-smp.c | 6 +++--- arch/arm64/kvm/va_layout.c | 5 ++--- 4 files changed, 12 insertions(+), 9 deletions(-) diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 828d50d40dc2..bce2452b305c 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -260,6 +260,12 @@ struct kvm_host_psci_config { extern struct kvm_host_psci_config kvm_nvhe_sym(kvm_host_psci_config); #define kvm_host_psci_config CHOOSE_NVHE_SYM(kvm_host_psci_config) +extern s64 kvm_nvhe_sym(hyp_physvirt_offset); +#define hyp_physvirt_offset CHOOSE_NVHE_SYM(hyp_physvirt_offset) + +extern u64 kvm_nvhe_sym(hyp_cpu_logical_map)[NR_CPUS]; +#define hyp_cpu_logical_map CHOOSE_NVHE_SYM(hyp_cpu_logical_map) + struct vcpu_reset_state { unsigned long pc; unsigned long r0; diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c index 6a2f4e01b04f..836ca763b91d 100644 --- a/arch/arm64/kvm/arm.c +++ b/arch/arm64/kvm/arm.c @@ -65,8 +65,6 @@ static bool vgic_present; static DEFINE_PER_CPU(unsigned char, kvm_arm_hardware_enabled); DEFINE_STATIC_KEY_FALSE(userspace_irqchip_in_use); -extern u64 kvm_nvhe_sym(__cpu_logical_map)[NR_CPUS]; - int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu) { return kvm_vcpu_exiting_guest_mode(vcpu) == IN_GUEST_MODE; @@ -1602,7 +1600,7 @@ static void init_cpu_logical_map(void) * allow any other CPUs from the `possible` set to boot. */ for_each_online_cpu(cpu) - kvm_nvhe_sym(__cpu_logical_map)[cpu] = cpu_logical_map(cpu); + hyp_cpu_logical_map[cpu] = cpu_logical_map(cpu); } static bool init_psci_relay(void) diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-smp.c b/arch/arm64/kvm/hyp/nvhe/hyp-smp.c index cbab0c6246e2..2997aa156d8e 100644 --- a/arch/arm64/kvm/hyp/nvhe/hyp-smp.c +++ b/arch/arm64/kvm/hyp/nvhe/hyp-smp.c @@ -14,14 +14,14 @@ * Other CPUs should not be allowed to boot because their features were * not checked against the finalized system capabilities. */ -u64 __ro_after_init __cpu_logical_map[NR_CPUS] = { [0 ... NR_CPUS-1] = INVALID_HWID }; +u64 __ro_after_init hyp_cpu_logical_map[NR_CPUS] = { [0 ... NR_CPUS-1] = INVALID_HWID }; u64 cpu_logical_map(unsigned int cpu) { - if (cpu >= ARRAY_SIZE(__cpu_logical_map)) + if (cpu >= ARRAY_SIZE(hyp_cpu_logical_map)) hyp_panic(); - return __cpu_logical_map[cpu]; + return hyp_cpu_logical_map[cpu]; } unsigned long __hyp_per_cpu_offset(unsigned int cpu) diff --git a/arch/arm64/kvm/va_layout.c b/arch/arm64/kvm/va_layout.c index 914732b88c69..70fcd6a12fe1 100644 --- a/arch/arm64/kvm/va_layout.c +++ b/arch/arm64/kvm/va_layout.c @@ -34,17 +34,16 @@ static u64 __early_kern_hyp_va(u64 addr) } /* - * Store a hyp VA <-> PA offset into a hyp-owned variable. + * Store a hyp VA <-> PA offset into a EL2-owned variable. */ static void init_hyp_physvirt_offset(void) { - extern s64 kvm_nvhe_sym(hyp_physvirt_offset); u64 kern_va, hyp_va; /* Compute the offset from the hyp VA and PA of a random symbol. */ kern_va = (u64)lm_alias(__hyp_text_start); hyp_va = __early_kern_hyp_va(kern_va); - CHOOSE_NVHE_SYM(hyp_physvirt_offset) = (s64)__pa(kern_va) - (s64)hyp_va; + hyp_physvirt_offset = (s64)__pa(kern_va) - (s64)hyp_va; } /*