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 999589C3C for ; Fri, 18 Nov 2022 13:13:59 +0100 (CET) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id 72A141D41 for ; Fri, 18 Nov 2022 13:13:29 +0100 (CET) Received: from bastionodiso.odiso.net (bastionodiso.odiso.net [IPv6:2a0a:1580:2000::2d]) (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 for ; Fri, 18 Nov 2022 13:13:28 +0100 (CET) Received: from kvmformation3.odiso.net (formationkvm3.odiso.net [10.3.94.12]) by bastionodiso.odiso.net (Postfix) with ESMTP id C499180B8; Fri, 18 Nov 2022 13:13:21 +0100 (CET) Received: by kvmformation3.odiso.net (Postfix, from userid 0) id AF95D195C76; Fri, 18 Nov 2022 13:13:21 +0100 (CET) From: Alexandre Derumier To: pve-devel@lists.proxmox.com Date: Fri, 18 Nov 2022 13:13:18 +0100 Message-Id: <20221118121320.132283-1-aderumier@odiso.com> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SPAM-LEVEL: Spam detection results: =?UTF-8?Q?0=0A=09?=AWL 0.034 Adjusted score from AWL reputation of From: =?UTF-8?Q?address=0A=09?=BAYES_00 -1.9 Bayes spam probability is 0 to 1% HEADER_FROM_DIFFERENT_DOMAINS 0.25 From and EnvelopeFrom 2nd level mail domains are =?UTF-8?Q?different=0A=09?=KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict =?UTF-8?Q?Alignment=0A=09?=KAM_LAZY_DOMAIN_SECURITY 1 Sending domain does not have any anti-forgery =?UTF-8?Q?methods=0A=09?=NO_DNS_FOR_FROM 0.001 Envelope sender has no MX or A DNS =?UTF-8?Q?records=0A=09?=SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF =?UTF-8?Q?Record=0A=09?=SPF_NONE 0.001 SPF: sender does not publish an SPF =?UTF-8?Q?Record=0A=09?=URIBL_BLOCKED 0.001 ADMINISTRATOR NOTICE: The query to URIBL was blocked. See http://wiki.apache.org/spamassassin/DnsBlocklists#dnsbl-block for more information. [memory.pm, pci.pm, qemuserver.pm, gitlab.io] Subject: [pve-devel] [PATCH v3 qemu-server 0/2] add virtio-mem support 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, 18 Nov 2022 12:13:59 -0000 This patch add virtio-mem support, through a new maxmemory option. a 4GB static memory is needed for DMA+boot memory, as this memory is almost always un-unpluggeable. 1 virtio-mem pci device is setup for each numa node on pci.4 bridge virtio-mem use a fixed blocksize with 32k max blocksize, so blocksize is computed from the maxmemory/32000 with a minimum of 2MB to map THP. (lower blocksize = more chance to unplug memory). guests tested: - ubuntu 22.04 : kernel 5.15 : works out of the box - debian11: kernel 5.10 : don't display new memory value more info about virtio-mem: https://virtio-mem.gitlab.io/ Changelog v2: - Allow only multiple of 32MB for memory. With lower values, guest sometimes hang. I have tested with step of 32MB from 4G to 768G, it's working fine. - rebase tests Changelog v3: - rename "maxmemory" option to "memory_max" - rebase to last git and handle the max_mem changes with phys-bits Alexandre Derumier (2): add virtio-mem support tests: add virtio-mem tests PVE/QemuServer.pm | 9 +- PVE/QemuServer/Memory.pm | 141 +++++++++++++++----- PVE/QemuServer/PCI.pm | 8 ++ test/cfg2cmd/simple-virtio-mem-big.conf | 12 ++ test/cfg2cmd/simple-virtio-mem-big.conf.cmd | 59 ++++++++ test/cfg2cmd/simple-virtio-mem.conf | 13 ++ test/cfg2cmd/simple-virtio-mem.conf.cmd | 31 +++++ 7 files changed, 241 insertions(+), 32 deletions(-) create mode 100644 test/cfg2cmd/simple-virtio-mem-big.conf create mode 100644 test/cfg2cmd/simple-virtio-mem-big.conf.cmd create mode 100644 test/cfg2cmd/simple-virtio-mem.conf create mode 100644 test/cfg2cmd/simple-virtio-mem.conf.cmd -- 2.30.2