From nobody Tue Feb 10 17:45:06 2026 X-Original-To: freebsd-virtualization@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4f9TVR07mHz6Rh80 for ; Tue, 10 Feb 2026 17:45:19 +0000 (UTC) (envelope-from pete@nomadlogic.org) Received: from mail.nomadlogic.org (mail.nomadlogic.org [46.21.153.22]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4f9TVQ43Z9z3fHP for ; Tue, 10 Feb 2026 17:45:18 +0000 (UTC) (envelope-from pete@nomadlogic.org) Authentication-Results: mx1.freebsd.org; none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nomadlogic.org; s=04242021; t=1770745502; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=gJea3r2XBPKpdsc5M5X635PN5RuQ3T/IRyQSObLp5fA=; b=ILhC8ZH2kTrWzY9Y1MCUVC8yomHxSzeNiTuspVZD5kq6wTcOGd7McKFhSGjk0tvNb+S3Ya gWGpp8YvJ/rtX9N64H8Yide6+wSOTJoJiyLZ41K53QVV2khIBixPzeE8/3b/sf7fh+vVcZ lbg8drAivooZtBIjPF49TEw+6jjd54E= Received: from [192.168.1.182] (47-143-52-179.fdr01.snmn.ca.ip.frontiernet.net [47.143.52.179]) by mail.nomadlogic.org (OpenSMTPD) with ESMTPSA id c12e37b2 (TLSv1.3:TLS_AES_256_GCM_SHA384:256:NO); Tue, 10 Feb 2026 17:45:01 +0000 (UTC) Message-ID: <9c3f1865-d47f-4fcf-a34b-866ee727a25b@nomadlogic.org> Date: Tue, 10 Feb 2026 09:45:06 -0800 List-Id: Discussion List-Archive: https://lists.freebsd.org/archives/freebsd-virtualization List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: freebsd-virtualization@freebsd.org Sender: owner-freebsd-virtualization@FreeBSD.org MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: RFC: Kernel virtiofs driver To: Mario Marietto , Emil Tsalapatis , FreeBSD virtualization References: Content-Language: en-US From: Pete Wright In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:29802, ipnet:46.21.153.0/24, country:US] X-Rspamd-Queue-Id: 4f9TVQ43Z9z3fHP X-Spamd-Bar: ---- On 2/9/26 10:57 PM, Mario Marietto wrote: > |Hello Emil,| > > |Inside a FreeBSD guest OS (15.0-RELEASE) I do :| > > kldload virtio_p9fs > > kldload p9fs_load > > |mount -t p9fs sharename /mnt/host| > > || > > |This works for me,I can share files between FreeBSD 15.0 guest and > FreeBSD 14.3 host os. So,what's missing in this case and which features > you added ?| > i had a similar question since i've been happy with p9fs. the virtiofs faq states (https://virtio-fs.gitlab.io/): "Existing solutions to this problem, such as virtio-9p, are based on existing network protocols that are not optimized for virtualization use cases. As a result they do not perform as well as local file systems and do not provide the semantics that some applications rely on. Virtiofs takes advantage of the virtual machine’s co-location with the hypervisor to avoid overheads associated with network file systems." that seems super reasonable to me. i also think there is windows support for virtiofs which is probably another benefit. -pete -- Pete Wright pete@nomadlogic.org