Date: Tue, 21 May 2019 10:04:53 -0700 (PDT) From: "Rodney W. Grimes" <freebsd-rwg@gndrsh.dnsmgr.net> To: John Baldwin <jhb@FreeBSD.org> Cc: "Rodney W. Grimes" <freebsd-rwg@gndrsh.dnsmgr.net>, Robert Crowston <crowston@protonmail.com>, freebsd-virtualization@FreeBSD.org Subject: Re: Windows 10 guests fail to boot when attempting to passthrough network card Message-ID: <201905211704.x4LH4rCb080120@gndrsh.dnsmgr.net> In-Reply-To: <23eb543e-68ca-ba6f-de8f-023dac39e41a@FreeBSD.org>
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[ Charset UTF-8 unsupported, converting... ] > On 5/21/19 9:48 AM, Rodney W. Grimes wrote: > >> On 5/19/19 6:24 AM, Rodney W. Grimes wrote: > >>>> Does the card have multiple BARs? Can you send us the output of pciconf -lvb for the card? > >>>> > >>>> There is a bug in bhyve where if the OS assigns the 0xffffffff sentinel to more than one BAR simultaneously it is not compatible with bhyve?s memory model for the guest. > >>> > >>> The "we talked" below is myself and Nick talking about exactly that > >>> which came from jhb@ pointing out to me in a hall wall > >>> conversation here at BSDCan that this is the cause of this > >>> problem and is a known issue. > >>> > >>> Does anyone have fixes for this issue? > >> > >> I have not tested this at all, but I have a candidate patch to fix the root > >> issue at https://github.com/freebsd/freebsd/compare/master...bsdjhb:bhyve_passthrough_barsize > > > > Could you please factor out the white space changes and do that > > seperately and sooner, it clouds the S/N in this review a bit. > > I can pull those out, but this is just a testing patch still, not yet a commit > candidate. Thanks and even more reason to pull those out, IMHO > -- > John Baldwin -- Rod Grimes rgrimes@freebsd.org
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