Date: Wed, 21 May 2014 09:11:08 +0200 From: Willem Jan Withagen <wjw@digiware.nl> To: Anish <akgupt3@gmail.com>, freebsd-virtualization@freebsd.org Subject: Re: bhyve: svm (amd-v) update Message-ID: <537C518C.7030505@digiware.nl> In-Reply-To: <CALnRwMTiUMef0aCkOVMJzXEJWCeEESu_twLAuVuWkUkQe8Xfwg@mail.gmail.com> References: <53748481.8010108@FreeBSD.org> <CALnRwMRpwc=DHib%2BeooftCkSP_K6XtVuR11AceDYju=mMBE2%2Bw@mail.gmail.com> <537BC30C.4070208@digiware.nl> <CALnRwMTiUMef0aCkOVMJzXEJWCeEESu_twLAuVuWkUkQe8Xfwg@mail.gmail.com>
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On 2014-05-21 6:59, Anish wrote:
> Hi Willem,
> Thanks for sharing your patch. I see that you have gone further than
> what I have. Are you able to boot Linux with these changes?
I'm running ubuntu-{12.x,14.04} with this and I'm able to compile the
linux kernel. Peter helped a lot in getting it going.
Although that is already takeing something like a week... So it is slow.
You might also need my ahci hack/patch, since linux uses a lot of
flushes and there is a 'bug' in the FreeBSD end of ahci that does not
really cooperate with the way ubuntu-14.04 calls it.
So I've emulated a flush to a NO-OP. which then results in a panic
because the ahci command-list is empty. So I 'fixed' that too, and then
things run, albeit slow.
CentOS it tried at the begining, but I'm just not a RH fan, so when that
was too slow, I gave up.
Give some time and I'll try and extract my ahci-hack-patch, and that is
the last part that'll let you get on your way, booting linux.
I do not have a lot of time to look at this, so I'm already a few weeks
stuck on speeding up the linux-kernels.
Also because I do not know enough of the inards of Linux..
--WjW
> Thanks and regards,
> Anish
>
>
>
> On Tue, May 20, 2014 at 2:03 PM, Willem Jan Withagen <wjw@digiware.nl
> <mailto:wjw@digiware.nl>> wrote:
>
> On 15-5-2014 17:56, Anish wrote:
> > Hi Andriy,
> > Thanks for your interest in SVM port of bhyve. I do have patch
> to sync it
> > to
> http://svnweb.freebsd.org/base?view=revision&revision=263780(3/26). If
> > patches looks good to you, we can submit it. I have been testing
> it on
> > Phenom box which lacks some of newer SVM features.
>
> I don't quite understand against what this patch is?
>
> Do I run it over head, to get SVM code into head?
> Or do I patch against bhyve_SVM, because in the later case I get
> complaints that
> fatal error: 'vlapic_priv.h' file not found
>
> # locate vlapic_priv.h
> /usr/srcs/head/sys/amd64/vmm/io/vlapic_priv.h
>
> So I'm guessing that is against head.
> But last time I looked at head, more than just the interrupt stuff was
> missing....
>
> --WjW
>
>
>
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