kldload vmm partial lockup

[Neel Natu]

Hi Joe,

On Tue, Jan 21, 2014 at 6:53 PM, Joe Maloney <jpm820 at gmail.com> wrote:
> Neel,
> sorry it took me a day or two to get to test this.  The patch compiles
> cleanly however it fails now trying to build the vmm module.
>

No worries.

I committed the patch as r260972:
http://svnweb.freebsd.org/base?view=revision&revision=260972

Could you get the latest HEAD and see how it works for you?

best
Neel

p.s. not sure why the patch is not compiling - perhaps ppt.h did not
get patched properly?

> Joe Maloney
>
> /usr/src/sys/modules/vmm/../../amd64/vmm/vmm.c:232:7: error: implicit
> declaration of function 'ppt_avail_devices' is invalid in C99
>       [-Werror,-Wimplicit-function-declaration]
>                 if (ppt_avail_devices() > 0)
>                     ^
> /usr/src/sys/modules/vmm/../../amd64/vmm/vmm.c:565:6: error: implicit
> declaration of function 'ppt_assigned_devices' is invalid in C99
>       [-Werror,-Wimplicit-function-declaration]
>         if (ppt_assigned_devices(vm) == 0) {
>             ^
> /usr/src/sys/modules/vmm/../../amd64/vmm/vmm.c:565:6: note: did you mean
> 'ppt_assign_device'?
>         if (ppt_assigned_devices(vm) == 0) {
>             ^~~~~~~~~~~~~~~~~~~~
>             ppt_assign_device
> /usr/src/sys/modules/vmm/../../amd64/vmm/io/ppt.h:46:5: note:
> 'ppt_assign_device' declared here
> int     ppt_assign_device(struct vm *vm, int bus, int slot, int func);
>         ^
> 2 errors generated.
> *** Error code 1
>
> Stop.
> make[4]: stopped in /usr/src/sys/modules/vmm
> *** Error code 1
>
> Stop.
> make[3]: stopped in /usr/src/sys/modules
> *** Error code 1
>
> Stop.
> make[2]: stopped in /usr/obj/usr/src/sys/GENERIC
> *** Error code 1
>
> Stop.
> make[1]: stopped in /usr/src
> *** Error code 1
>
> Stop.
> make: stopped in /usr/src
> root at jmhome-pc:/usr/src #
>
> On Jan 19, 2014, at 8:43 PM, Neel Natu <neelnatu at gmail.com> wrote:
>
> Hi Joe,
>
> On Sun, Jan 19, 2014 at 2:21 PM, Joe Maloney <jpm820 at gmail.com> wrote:
>
> I’ve been trying to get bhyve to work on a system with the following specs:
>
> FreeBSD 10.0 64 bit
> ASUS P6T Deluxe
> Intel i7 920
>
> According to what I’ve researched my cpu should have the VT-D extensions.
> However many users of this motherboard have complained about ASUS not
> properly supporting VT-D with Xen and something about a problem with tables
> getting corrupt due to a problem with the bios.  On the third link below
> which is the Xen wiki it even states that this motherboard needs a bios
> update which is not available to the public.
>
> https://communities.intel.com/thread/28389
>
> http://vip.asus.com/forum/view.aspx?id=20090402224408018&SLanguage=en-us&board_id=1
>
> http://wiki.xen.org/wiki/VTd_HowTo
>
> I am curious though if this would be what would be causing my problem with
> bhyve?  I suppose I am willing to just by a new motherboard if so.
>
> I can run kldload vmm and I see a bunch of text fly by and then something
> about uhci interrupt problem.  As soon as that happens the messages repeats
> my network drops and no keyboard input.  However the message repeats and it
> doesn’t appear that the system has fully locked up otherwise.  However on
> another system that works I notice that kldload VMM does not show this
> information it just loads the module.
>
> Is there a way I can gather more logs somehow so that I can determine what
> text is appearing before the uhci errors?  Perhaps some kind of dump
> procedure?  Or is there a way I can confirm that freebsd can properly see
> and utilize the VT-D extensions.  VirtualBox runs fine with the VT
> extensions enabled.  I also made sure VirtualBox wasn’t installed or loaded
> before I tried bhyve.  I’ve tried to research for a week or two before
> posting here.
>
>
> I have a patch to not initialize the iommu unless there are passthru
> devices explicitly configured for bhyve to use.
>
> It is available here:
> http://people.freebsd.org/~neel/patches/bhyve_iommu_init.patch
>
> Could you give it a spin and see if it helps with the ASUS system?
>
> best
> Neel
>
> Joe Maloney
>
> _______________________________________________
> freebsd-virtualization at freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-virtualization
> To unsubscribe, send any mail to
> "freebsd-virtualization-unsubscribe at freebsd.org"
>
>