From nobody Sun Jun 16 08:12:50 2024 X-Original-To: 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 4W25Nr1jyFz5NXR6 for ; Sun, 16 Jun 2024 08:13:00 +0000 (UTC) (envelope-from shuriku@shurik.kiev.ua) Received: from mail.flex-it.com.ua (mail.flex-it.com.ua [193.239.74.7]) (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 4W25Np43cyz4WbW for ; Sun, 16 Jun 2024 08:12:58 +0000 (UTC) (envelope-from shuriku@shurik.kiev.ua) Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=pass (mx1.freebsd.org: domain of shuriku@shurik.kiev.ua designates 193.239.74.7 as permitted sender) smtp.mailfrom=shuriku@shurik.kiev.ua Received: from 93.183.208.50.ipv4.datagroup.ua ([93.183.208.50] helo=[192.168.200.135]) by mail.flex-it.com.ua with esmtpsa (TLS1.3) tls TLS_AES_128_GCM_SHA256 (Exim 4.97.1 (FreeBSD)) (envelope-from ) id 1sIl0M-00000000JBV-1fz7 for virtualization@freebsd.org; Sun, 16 Jun 2024 11:12:50 +0300 Content-Type: multipart/alternative; boundary="------------7snt0nwRoQ10iL18xHBQ35Vc" Message-ID: <86822716-b32d-4663-9b73-87d7c977b70a@shurik.kiev.ua> Date: Sun, 16 Jun 2024 11:12:50 +0300 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: bhyve passthru problem To: virtualization@freebsd.org References: <38c9656c26fc3cee7ba733168c0fa2cdd01209d9.camel@FreeBSD.org> <92b37bf8-7ef9-4abd-8617-af12fbb35e13@shurik.kiev.ua> Content-Language: uk-UA, en-US From: Oleksandr Kryvulia In-Reply-To: X-ACL-Warn: SPF failed. 93.183.208.50 is not allowed to send mail from shurik.kiev.ua. X-Spamd-Bar: --- X-Spamd-Result: default: False [-3.28 / 15.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.99)[-0.991]; R_SPF_ALLOW(-0.20)[+mx]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; XM_UA_NO_VERSION(0.01)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; RCVD_COUNT_ONE(0.00)[1]; ASN(0.00)[asn:35297, ipnet:193.239.72.0/22, country:UA]; MIME_TRACE(0.00)[0:+,1:+,2:~]; RCVD_TLS_ALL(0.00)[]; R_DKIM_NA(0.00)[]; MLMMJ_DEST(0.00)[virtualization@freebsd.org]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; TO_DN_NONE(0.00)[]; DMARC_NA(0.00)[shurik.kiev.ua]; TO_MATCH_ENVRCPT_ALL(0.00)[]; ARC_NA(0.00)[] X-Rspamd-Queue-Id: 4W25Np43cyz4WbW This is a multi-part message in MIME format. --------------7snt0nwRoQ10iL18xHBQ35Vc Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit 15.06.24 13:47, Mario Marietto: > Ciao Oleksandr. > > I can't produce patches,I'm not a programmer. But I conduct > experiments every day,changing parameters,system files between > different FreeBSD versions,operating systems and tools. > > Can't you use virtio-net instead of passing through the physical > network interface,like this for example : -s 13,virtio-net,tap18 \ in > your bhyve guest ? > > You can try these bhyve versions : (try both) > > https://drive.google.com/drive/folders/14OMOjdyS5NPQ75ISatcpCWegU0udzG0r?usp=sharing > Unfortunately both of your vmm.ko modules fail to load on my system: KLD vmm.ko: depends on kernel - not available or version mismatch > On Sat, Jun 15, 2024 at 9:17 AM Oleksandr Kryvulia > wrote: > > 14.06.24 10:50, Peter Grehan: > >> I don't know why bhyve validates the BAR size. The commit > adding this > >> check is old [1] and doesn't explain it. What bhyve could do is > >> rounding up the BAR size to a full page size when allocating > memory for > >> the BAR. > >> > >> [1] https://github.com/freebsd/freebsd- > >> src/commit/7a902ec0eccc752c9c38533ed123121eaaea1225 > > > >  At the time, BIOSs would often place device BARs of less than a > page > > size in the same physical page. Since EPT only gives page > granularity, > > this would result in all those devices being available to the guest > > even if they hadn't been passed through. > > > Peter, can you explain how can I use this device in a guest without > passing through? > > > > > -- > Mario. --------------7snt0nwRoQ10iL18xHBQ35Vc Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 8bit 15.06.24 13:47, Mario Marietto:
Ciao Oleksandr.

I can't produce patches,I'm not a programmer. But I conduct experiments every day,changing parameters,system files between different FreeBSD versions,operating systems and tools. 

Can't you use virtio-net instead of passing through the physical network interface,like this for example : -s 13,virtio-net,tap18 \ in your bhyve guest ?

You can try these bhyve versions : (try both)


Unfortunately both of your vmm.ko modules fail to load on my system:

KLD vmm.ko: depends on kernel - not available or version mismatch

On Sat, Jun 15, 2024 at 9:17 AM Oleksandr Kryvulia <shuriku@shurik.kiev.ua> wrote:
14.06.24 10:50, Peter Grehan:
>> I don't know why bhyve validates the BAR size. The commit adding this
>> check is old [1] and doesn't explain it. What bhyve could do is
>> rounding up the BAR size to a full page size when allocating memory for
>> the BAR.
>>
>> [1] https://github.com/freebsd/freebsd-
>> src/commit/7a902ec0eccc752c9c38533ed123121eaaea1225
>
>  At the time, BIOSs would often place device BARs of less than a page
> size in the same physical page. Since EPT only gives page granularity,
> this would result in all those devices being available to the guest
> even if they hadn't been passed through.
>
Peter, can you explain how can I use this device in a guest without
passing through?




--
Mario.

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