From nobody Tue Feb 10 22:18:30 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1770723104; cv=none; d=zohomail.com; s=zohoarc; b=gUC1p/IadGvVU9HzD+R71c/F+ivRWUV9/IgmF7HH+VYNkRK5DwSzG3Rq98WHPgnqIO+jCN8fjpAK4rvnLSTHU0Ez7+87nrGPkld4SM1eAQ0ee8PsU1sIygpfFOGcoIfOpaJh2J5C2S1hiT4uJnI217/Ft/YKLDdh7norCYh9ycQ= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1770723104; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Reply-To:Reply-To:References:Sender:Subject:Subject:To:To:Message-Id; bh=Yvjn4hcvICFMZZkelelqcz1XeQe1JxSatdUgrAWmycM=; b=BD0PStM9MJQwH0tHKBLgLkJCXcAt+B2WaijIewhbZw1mpRObJaDmCii+NEpNRwYoOfhvVEJhKx5Q3XaQnPDUHPlnvV6leS6sMY+3aWCQmWCidW6SQVD4RfMce/ZUeeWqF9PLY8MEo9gKJe1zLhEeLws+aDdA9HFAsLeX5THrMos= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1770723104308300.3465634281981; Tue, 10 Feb 2026 03:31:44 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vplx4-0005R9-At; Tue, 10 Feb 2026 06:30:42 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vplwv-0005Om-Mk for qemu-devel@nongnu.org; Tue, 10 Feb 2026 06:30:38 -0500 Received: from rev.ng ([94.130.142.21]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vplwu-0008Kl-7x for qemu-devel@nongnu.org; Tue, 10 Feb 2026 06:30:33 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=rev.ng; s=dkim; h=Cc:To:In-Reply-To:References:Message-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:Subject:Date:From:Sender:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive:List-Unsubscribe:List-Unsubscribe-Post: List-Help; bh=Yvjn4hcvICFMZZkelelqcz1XeQe1JxSatdUgrAWmycM=; b=Z4whQu8lbobT7lt RsEfF51fIxFOpqalJbgbwBXOhQERtbIafpIjEO/KLTIQTE9Cw+5rjR9XBsTJJ87BpaLsn5dxbJYbm Ad1rSMsSegq/YX1Ak+alhp8Xdor1DgSW1IsHUt4v9XJ4/sz155ipIBevpag2cmO4TVdnLS5BzpwDC og=; Date: Tue, 10 Feb 2026 12:33:18 +0100 Subject: [PATCH v4 7/8] hw/riscv: Fix IOMMU PAS capability to 56 bits MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260210-phys_addr-v4-7-725a589e83c8@rev.ng> References: <20260210-phys_addr-v4-0-725a589e83c8@rev.ng> In-Reply-To: <20260210-phys_addr-v4-0-725a589e83c8@rev.ng> To: qemu-devel@nongnu.org Cc: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Richard Henderson , Anton Johansson , palmer@dabbelt.com, alistair.francis@wdc.com, pbonzini@redhat.com, gaosong@loongson.cn, maobibo@loongson.cn, deller@gmx.de Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=94.130.142.21; envelope-from=anjo@rev.ng; helo=rev.ng X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_PASS=-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: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-to: Anton Johansson From: Anton Johansson via qemu development Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1770723106000154100 Replaces the only remaining use of TARGET_PHYS_ADDR_SPACE_BITS for RISCV with the fixed size of the riscv64 physical address space. Better would be to somehow determine if a 32-bit or 64-bit cpu is running and set accordingly, but I'm not sure how that would be done from the device instance init function. This field is unused anyway. Signed-off-by: Anton Johansson --- hw/riscv/riscv-iommu.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/hw/riscv/riscv-iommu.c b/hw/riscv/riscv-iommu.c index b46b337375..c3d48541b7 100644 --- a/hw/riscv/riscv-iommu.c +++ b/hw/riscv/riscv-iommu.c @@ -2453,9 +2453,15 @@ static void riscv_iommu_instance_init(Object *obj) /* Enable translation debug interface */ s->cap =3D RISCV_IOMMU_CAP_DBG; =20 - /* Report QEMU target physical address space limits */ - s->cap =3D set_field(s->cap, RISCV_IOMMU_CAP_PAS, - TARGET_PHYS_ADDR_SPACE_BITS); + /* + * Report QEMU target physical address space limits. + * + * Currently set to the riscv64 limit of 56 bits (44 bit PPN), + * riscv32 would use 34 bits (22 bit PPN). + * + * This field is currently unused. + */ + s->cap =3D set_field(s->cap, RISCV_IOMMU_CAP_PAS, 56); =20 /* TODO: method to report supported PID bits */ s->pid_bits =3D 8; /* restricted to size of MemTxAttrs.pid */ --=20 2.52.0