From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from firstgate.proxmox.com (firstgate.proxmox.com [212.224.123.68]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.proxmox.com (Postfix) with ESMTPS id C605071C94 for ; Fri, 20 May 2022 10:43:27 +0200 (CEST) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id B3D6618582 for ; Fri, 20 May 2022 10:43:27 +0200 (CEST) Received: from proxmox-new.maurer-it.com (proxmox-new.maurer-it.com [94.136.29.106]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by firstgate.proxmox.com (Proxmox) with ESMTPS id 712EF18574 for ; Fri, 20 May 2022 10:43:26 +0200 (CEST) Received: from proxmox-new.maurer-it.com (localhost.localdomain [127.0.0.1]) by proxmox-new.maurer-it.com (Proxmox) with ESMTP id 0A48D42F61 for ; Fri, 20 May 2022 10:43:26 +0200 (CEST) From: Dominik Csapak To: pve-devel@lists.proxmox.com Date: Fri, 20 May 2022 10:43:24 +0200 Message-Id: <20220520084325.1388661-1-d.csapak@proxmox.com> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SPAM-LEVEL: Spam detection results: 0 AWL 0.116 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_PASS -0.001 SPF: sender matches SPF record T_SCC_BODY_TEXT_LINE -0.01 - Subject: [pve-devel] [PATCH docs 1/2] pcie-passthrough: note that iommu activation is not always necessary 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: , X-List-Received-Date: Fri, 20 May 2022 08:43:27 -0000 especially on newer kernels Signed-off-by: Dominik Csapak --- qm-pci-passthrough.adoc | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/qm-pci-passthrough.adoc b/qm-pci-passthrough.adoc index fa6ba35..5ef325d 100644 --- a/qm-pci-passthrough.adoc +++ b/qm-pci-passthrough.adoc @@ -49,8 +49,9 @@ First, the IOMMU support has to be enabled in your BIOS/UEFI. Most often, that options is named `IOMMU` or `VT-d`, but check the manual for your motherboard for the exact option you need to enable. -Then, the IOMMU has to be activated on the +Then, the IOMMU might need to be activated on the xref:sysboot_edit_kernel_cmdline[kernel commandline]. +(On newer kernels, this should not be necessary.) The command line parameters are: -- 2.30.2