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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 1FF29CF9C73 for ; Thu, 20 Nov 2025 17:26:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=D8UoIByuxhzADXO+k9OFhOe+fcXzESCOC+jX2cMh8ss=; b=m1pHOzy7UMNptWSKTBvWF/mqhx BgmEvNfYGEqEhfVbTNHbutwzkbdMITeuAXZNePD8zQ97fCfskNyVaGJvdtm2Hx/WAExSoObwKxb4Z UNDSBMrDHqxMjyDnuj6i7+2xlSeiaHhRvn/iXfrcCmiRfnF6Ku6lW1IJTFsFkTGqAUtM71DeTD1FZ fXAhwn7X8yflwyqSpE9RMivTPnHF8mIdEUYLVeIB2Ca32pGYbJolEoYDqrQ4RSRIYEkvOjDGs+xHJ iTVal9FtqH/77fpXagusJXb0UmILmqu1aiYRwkUF9ETqjMDcAguPSO7pHnnrglEu3LcDMnULuuLa5 x5Om1p/g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vM8QC-000000075uR-0vjr; Thu, 20 Nov 2025 17:26:16 +0000 Received: from tor.source.kernel.org ([172.105.4.254]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vM8Px-000000075ch-3ore for linux-arm-kernel@lists.infradead.org; Thu, 20 Nov 2025 17:26:02 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 50B0F601F1; Thu, 20 Nov 2025 17:26:01 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 06BFBC16AAE; Thu, 20 Nov 2025 17:26:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1763659561; bh=Wne+A8EYEvVAkzxyqVearpf9rf8Dhb8b8xWDhsiAlHo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ib/KQUfr+I/dKWLtDhG4jMPbPOdn+OKJMfqcWAvMOXGUp/4ZXYHhXJ5OEqZSvMlR7 y2qGjr6x9ZX/3qtjrYfxI5JAwIXUgroaRtCK5xAR9LVeABxSet4QBbwW551kmG06Vk N0Mif7sbmGu0g590U0bBdL2zNOdidBOmmGipM9CToDJhuiZcSFnjQh1wuBcW/O8SUO GLvUkEGuWYJhDaxActxGOlXlzzMzVEH5ad40enQ2eyNkov7+rGi+KEutqK1X5M31H+ MLguqUIJcTd9pk4E0LH2Sosx0X20WPUP6n/BhedgDnPBlcbBYLpmzwmPi0DeThUYTm N0AAKhYvEzTDQ== Received: from sofa.misterjones.org ([185.219.108.64] helo=valley-girl.lan) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1vM8Pv-00000006y6g-0uU3; Thu, 20 Nov 2025 17:25:59 +0000 From: Marc Zyngier To: kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org Cc: Joey Gouly , Suzuki K Poulose , Oliver Upton , Zenghui Yu , Christoffer Dall , Fuad Tabba , Mark Brown Subject: [PATCH v4 22/49] KVM: arm64: Turn kvm_vgic_vcpu_enable() into kvm_vgic_vcpu_reset() Date: Thu, 20 Nov 2025 17:25:12 +0000 Message-ID: <20251120172540.2267180-23-maz@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20251120172540.2267180-1-maz@kernel.org> References: <20251120172540.2267180-1-maz@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org, joey.gouly@arm.com, suzuki.poulose@arm.com, oupton@kernel.org, yuzenghui@huawei.com, christoffer.dall@arm.com, tabba@google.com, broonie@kernel.org X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Now that we always reconfigure the vgic HCR register on entry, the "enable" part of kvm_vgic_vcpu_enable() is pretty useless. Removing the enable bits from these functions makes it plain that they are just about computing the reset state. Just rename the functions accordingly. Tested-by: Fuad Tabba Signed-off-by: Marc Zyngier --- arch/arm64/kvm/vgic/vgic-init.c | 8 ++++---- arch/arm64/kvm/vgic/vgic-v2.c | 5 +---- arch/arm64/kvm/vgic/vgic-v3.c | 5 +---- arch/arm64/kvm/vgic/vgic.h | 4 ++-- 4 files changed, 8 insertions(+), 14 deletions(-) diff --git a/arch/arm64/kvm/vgic/vgic-init.c b/arch/arm64/kvm/vgic/vgic-init.c index 1796b1a22a72a..6d5e5d708f23a 100644 --- a/arch/arm64/kvm/vgic/vgic-init.c +++ b/arch/arm64/kvm/vgic/vgic-init.c @@ -353,12 +353,12 @@ int kvm_vgic_vcpu_init(struct kvm_vcpu *vcpu) return ret; } -static void kvm_vgic_vcpu_enable(struct kvm_vcpu *vcpu) +static void kvm_vgic_vcpu_reset(struct kvm_vcpu *vcpu) { if (kvm_vgic_global_state.type == VGIC_V2) - vgic_v2_enable(vcpu); + vgic_v2_reset(vcpu); else - vgic_v3_enable(vcpu); + vgic_v3_reset(vcpu); } /* @@ -405,7 +405,7 @@ int vgic_init(struct kvm *kvm) } kvm_for_each_vcpu(idx, vcpu, kvm) - kvm_vgic_vcpu_enable(vcpu); + kvm_vgic_vcpu_reset(vcpu); ret = kvm_vgic_setup_default_irq_routing(kvm); if (ret) diff --git a/arch/arm64/kvm/vgic/vgic-v2.c b/arch/arm64/kvm/vgic/vgic-v2.c index f53bc55288978..18856186be7be 100644 --- a/arch/arm64/kvm/vgic/vgic-v2.c +++ b/arch/arm64/kvm/vgic/vgic-v2.c @@ -285,7 +285,7 @@ void vgic_v2_get_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcrp) GICH_VMCR_PRIMASK_SHIFT) << GICV_PMR_PRIORITY_SHIFT; } -void vgic_v2_enable(struct kvm_vcpu *vcpu) +void vgic_v2_reset(struct kvm_vcpu *vcpu) { /* * By forcing VMCR to zero, the GIC will restore the binary @@ -293,9 +293,6 @@ void vgic_v2_enable(struct kvm_vcpu *vcpu) * anyway. */ vcpu->arch.vgic_cpu.vgic_v2.vgic_vmcr = 0; - - /* Get the show on the road... */ - vcpu->arch.vgic_cpu.vgic_v2.vgic_hcr = GICH_HCR_EN; } /* check for overlapping regions and for regions crossing the end of memory */ diff --git a/arch/arm64/kvm/vgic/vgic-v3.c b/arch/arm64/kvm/vgic/vgic-v3.c index 81f1de9e3897b..780cc92c79e04 100644 --- a/arch/arm64/kvm/vgic/vgic-v3.c +++ b/arch/arm64/kvm/vgic/vgic-v3.c @@ -293,7 +293,7 @@ void vgic_v3_get_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcrp) GIC_BASER_CACHEABILITY(GICR_PENDBASER, OUTER, SameAsInner) | \ GIC_BASER_SHAREABILITY(GICR_PENDBASER, InnerShareable)) -void vgic_v3_enable(struct kvm_vcpu *vcpu) +void vgic_v3_reset(struct kvm_vcpu *vcpu) { struct vgic_v3_cpu_if *vgic_v3 = &vcpu->arch.vgic_cpu.vgic_v3; @@ -323,9 +323,6 @@ void vgic_v3_enable(struct kvm_vcpu *vcpu) kvm_vgic_global_state.ich_vtr_el2); vcpu->arch.vgic_cpu.num_pri_bits = FIELD_GET(ICH_VTR_EL2_PRIbits, kvm_vgic_global_state.ich_vtr_el2) + 1; - - /* Get the show on the road... */ - vgic_v3->vgic_hcr = ICH_HCR_EL2_En; } void vcpu_set_ich_hcr(struct kvm_vcpu *vcpu) diff --git a/arch/arm64/kvm/vgic/vgic.h b/arch/arm64/kvm/vgic/vgic.h index 4a0733869cb5f..e48294521541e 100644 --- a/arch/arm64/kvm/vgic/vgic.h +++ b/arch/arm64/kvm/vgic/vgic.h @@ -285,7 +285,7 @@ int vgic_v2_cpuif_uaccess(struct kvm_vcpu *vcpu, bool is_write, int offset, u32 *val); void vgic_v2_set_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr); void vgic_v2_get_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr); -void vgic_v2_enable(struct kvm_vcpu *vcpu); +void vgic_v2_reset(struct kvm_vcpu *vcpu); int vgic_v2_probe(const struct gic_kvm_info *info); int vgic_v2_map_resources(struct kvm *kvm); int vgic_register_dist_iodev(struct kvm *kvm, gpa_t dist_base_address, @@ -320,7 +320,7 @@ void vgic_v3_clear_lr(struct kvm_vcpu *vcpu, int lr); void vgic_v3_configure_hcr(struct kvm_vcpu *vcpu, struct ap_list_summary *als); void vgic_v3_set_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr); void vgic_v3_get_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr); -void vgic_v3_enable(struct kvm_vcpu *vcpu); +void vgic_v3_reset(struct kvm_vcpu *vcpu); int vgic_v3_probe(const struct gic_kvm_info *info); int vgic_v3_map_resources(struct kvm *kvm); int vgic_v3_lpi_sync_pending_status(struct kvm *kvm, struct vgic_irq *irq); -- 2.47.3