From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from firstgate.proxmox.com (firstgate.proxmox.com [IPv6:2a01:7e0:0:424::9]) by lore.proxmox.com (Postfix) with ESMTPS id 861951FF16F for ; Tue, 2 Sep 2025 13:23:01 +0200 (CEST) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id B0F6110E19; Tue, 2 Sep 2025 13:23:13 +0200 (CEST) From: Daniel Kral To: pve-devel@lists.proxmox.com Date: Tue, 2 Sep 2025 13:21:56 +0200 Message-ID: <20250902112307.124706-1-d.kral@proxmox.com> X-Mailer: git-send-email 2.47.2 MIME-Version: 1.0 X-Bm-Milter-Handled: 55990f41-d878-4baa-be0a-ee34c49e34d2 X-Bm-Transport-Timestamp: 1756812176864 X-SPAM-LEVEL: Spam detection results: 0 AWL 0.012 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% DMARC_MISSING 0.1 Missing DMARC policy KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment RCVD_IN_VALIDITY_CERTIFIED_BLOCKED 0.001 ADMINISTRATOR NOTICE: The query to Validity was blocked. See https://knowledge.validity.com/hc/en-us/articles/20961730681243 for more information. RCVD_IN_VALIDITY_RPBL_BLOCKED 0.001 ADMINISTRATOR NOTICE: The query to Validity was blocked. See https://knowledge.validity.com/hc/en-us/articles/20961730681243 for more information. RCVD_IN_VALIDITY_SAFE_BLOCKED 0.001 ADMINISTRATOR NOTICE: The query to Validity was blocked. See https://knowledge.validity.com/hc/en-us/articles/20961730681243 for more information. SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_PASS -0.001 SPF: sender matches SPF record URIBL_BLOCKED 0.001 ADMINISTRATOR NOTICE: The query to URIBL was blocked. See http://wiki.apache.org/spamassassin/DnsBlocklists#dnsbl-block for more information. [cpuconfig.pm, qemuserver.pm, machine.pm, procfstools.pm] Subject: [pve-devel] [PATCH common/qemu-server v2 0/5] fix issues with viommu+vfio passthrough in #6608, #6378 X-BeenThere: pve-devel@lists.proxmox.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Proxmox VE development discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Proxmox VE development discussion Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: pve-devel-bounces@lists.proxmox.com Sender: "pve-devel" This exposes the intel-iommu and virtio-iommu's aw-bits option through the machine conf property string to users to properly set the aw-bits for the vIOMMU. This allows intel-iommu users to override the new default value of 48 for host IOMMUs that have a maximum guest address width less than 48 bits (e.g. 39, 41, or 46 bits for Intel consumer-grade CPUs). Else they get the fatal error on startup: vfio 0000:XX:YY.Z: Failed to set vIOMMU: aw-bits 48 > host aw-bits 39 Additionally, qemu-server #1, qemu-server #2-4 add warnings about the above (qemu-server #4) and another error that users run into: kvm: vfio_container_dma_map(0x5c9222494280, 0x380000000000, 0x10000, 0x78075ee70000) = -22 (Invalid argument) See qemu-server #3 for more information for the latter. pve-common.git: Daniel Kral (1): procfs: cpuinfo: expose x86_phys_bits and x86_virt_bits values src/PVE/ProcFSTools.pm | 5 +++++ 1 file changed, 5 insertions(+) qemu-server.git: Daniel Kral (4): fix #6608: expose viommu driver aw-bits option cpu config: factor out gathering common cpu properties fix #6378 (continued): warn intel-iommu users about iommu and host aw bits mismatch machine: warn intel-iommu users about too large address width src/PVE/QemuServer.pm | 16 ++- src/PVE/QemuServer/CPUConfig.pm | 100 ++++++++++-------- src/PVE/QemuServer/Machine.pm | 50 ++++++++- .../cfg2cmd/q35-viommu-intel-aw-bits.conf | 2 + .../cfg2cmd/q35-viommu-intel-aw-bits.conf.cmd | 25 +++++ .../q35-viommu-intel-exceeding-aw-bits.conf | 4 + ...35-viommu-intel-exceeding-aw-bits.conf.cmd | 25 +++++ .../cfg2cmd/q35-viommu-virtio-aw-bits.conf | 2 + .../q35-viommu-virtio-aw-bits.conf.cmd | 25 +++++ src/test/run_config2command_tests.pl | 8 ++ 10 files changed, 208 insertions(+), 49 deletions(-) create mode 100644 src/test/cfg2cmd/q35-viommu-intel-aw-bits.conf create mode 100644 src/test/cfg2cmd/q35-viommu-intel-aw-bits.conf.cmd create mode 100644 src/test/cfg2cmd/q35-viommu-intel-exceeding-aw-bits.conf create mode 100644 src/test/cfg2cmd/q35-viommu-intel-exceeding-aw-bits.conf.cmd create mode 100644 src/test/cfg2cmd/q35-viommu-virtio-aw-bits.conf create mode 100644 src/test/cfg2cmd/q35-viommu-virtio-aw-bits.conf.cmd Summary over all repositories: 11 files changed, 213 insertions(+), 49 deletions(-) -- Generated by git-murpp 0.8.0 _______________________________________________ pve-devel mailing list pve-devel@lists.proxmox.com https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel