From patchwork Sun Oct 3 16:46:02 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marc Zyngier X-Patchwork-Id: 12532903 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B7C21C433F5 for ; Sun, 3 Oct 2021 16:48:51 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 58266610A5 for ; Sun, 3 Oct 2021 16:48:51 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 58266610A5 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=nongnu.org Received: from localhost ([::1]:57026 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mX4fS-0003f8-EZ for qemu-devel@archiver.kernel.org; Sun, 03 Oct 2021 12:48:50 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:46050) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mX4d5-0000oK-8i for qemu-devel@nongnu.org; Sun, 03 Oct 2021 12:46:23 -0400 Received: from mail.kernel.org ([198.145.29.99]:55630) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mX4cy-00024f-Cr for qemu-devel@nongnu.org; Sun, 03 Oct 2021 12:46:21 -0400 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 8ABA261A50; Sun, 3 Oct 2021 16:46:11 +0000 (UTC) Received: from sofa.misterjones.org ([185.219.108.64] helo=hot-poop.lan) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1mX4cr-00EUhe-Vh; Sun, 03 Oct 2021 17:46:10 +0100 From: Marc Zyngier To: qemu-devel@nongnu.org Subject: [PATCH v2 2/5] hw/arm/virt: Add a control for the the highmem redistributors Date: Sun, 3 Oct 2021 17:46:02 +0100 Message-Id: <20211003164605.3116450-3-maz@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20211003164605.3116450-1-maz@kernel.org> References: <20211003164605.3116450-1-maz@kernel.org> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: qemu-devel@nongnu.org, drjones@redhat.com, eric.auger@redhat.com, peter.maydell@linaro.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, kernel-team@android.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false Received-SPF: pass client-ip=198.145.29.99; envelope-from=maz@kernel.org; helo=mail.kernel.org X-Spam_score_int: -49 X-Spam_score: -5.0 X-Spam_bar: ----- X-Spam_report: (-5.0 / 5.0 requ) RCVD_IN_DNSWL_HI=-5, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , Andrew Jones , kvm@vger.kernel.org, Eric Auger , kernel-team@android.com, kvmarm@lists.cs.columbia.edu Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Just like we can control the enablement of the highmem PCIe region using highmem_ecam, let's add a control for the highmem GICv3 redistributor region. Similarily to highmem_ecam, these redistributors are disabled when highmem is off. Signed-off-by: Marc Zyngier Reviewed-by: Andrew Jones --- hw/arm/virt-acpi-build.c | 2 ++ hw/arm/virt.c | 3 +++ include/hw/arm/virt.h | 4 +++- 3 files changed, 8 insertions(+), 1 deletion(-) diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c index d7bef0e627..f0d0b662b7 100644 --- a/hw/arm/virt-acpi-build.c +++ b/hw/arm/virt-acpi-build.c @@ -792,6 +792,8 @@ void virt_acpi_build(VirtMachineState *vms, AcpiBuildTables *tables) acpi_add_table(table_offsets, tables_blob); build_fadt_rev5(tables_blob, tables->linker, vms, dsdt); + vms->highmem_redists &= vms->highmem; + acpi_add_table(table_offsets, tables_blob); build_madt(tables_blob, tables->linker, vms); diff --git a/hw/arm/virt.c b/hw/arm/virt.c index 8021d545c3..bcf58f677d 100644 --- a/hw/arm/virt.c +++ b/hw/arm/virt.c @@ -2053,6 +2053,8 @@ static void machvirt_init(MachineState *machine) virt_flash_fdt(vms, sysmem, secure_sysmem ?: sysmem); + vms->highmem_redists &= vms->highmem; + create_gic(vms, sysmem); virt_cpu_post_init(vms, sysmem); @@ -2750,6 +2752,7 @@ static void virt_instance_init(Object *obj) vms->gic_version = VIRT_GIC_VERSION_NOSEL; vms->highmem_ecam = !vmc->no_highmem_ecam; + vms->highmem_redists = true; if (vmc->no_its) { vms->its = false; diff --git a/include/hw/arm/virt.h b/include/hw/arm/virt.h index b461b8d261..787cc8a27d 100644 --- a/include/hw/arm/virt.h +++ b/include/hw/arm/virt.h @@ -141,6 +141,7 @@ struct VirtMachineState { bool secure; bool highmem; bool highmem_ecam; + bool highmem_redists; bool its; bool tcg_its; bool virt; @@ -187,7 +188,8 @@ static inline int virt_gicv3_redist_region_count(VirtMachineState *vms) assert(vms->gic_version == VIRT_GIC_VERSION_3); - return MACHINE(vms)->smp.cpus > redist0_capacity ? 2 : 1; + return (MACHINE(vms)->smp.cpus > redist0_capacity && + vms->highmem_redists) ? 2 : 1; } #endif /* QEMU_ARM_VIRT_H */