capablity by advertising pcie capability.
Since the 'hostbridge' device isn't a true pci-to-pci bridge, and
doesn't actaully use the bridge configuration space layout, change
the header-type from type 1 to type 0 to avoid confusion.
Reviewed by: neel
While there is no issued with the number of descriptors in
a virtio indirect descriptor, it's a guest's choice as to
whether indirect descriptors are used. For the case where
they aren't, the virtio block ring size is still 64 which
is less than the now reported max_segs of 67. This results
in an assertion in recent Linux guests even though it was
benign since they were using indirect descs.
The intertwined relationship between virtio ring size,
max seg size and blockif queue size will be addressed
in an upcoming commit, at which point the max descriptors
will again be bumped up to 67.
bhyveload would allow you to create 33 entries on an array that only has 32 slots
Differential Revision: https://reviews.freebsd.org/D2569
Reviewed by: araujo
Approved by: neel
MFC after: 1 week
Sponsored by: ScaleEngine Inc.
systems that are automounted, since that configuration
isn't supported. This still allows the export, since
two emails I received felt that this should not be
disabled. It sends the message to syslog(LOG_ERR..), so that
it goes to the same places as the other messages related
to /etc/exports problems, even though it is a warning and not an error.
Reviewed by: trasz
MFC after: 2 weeks
The Windows virtio driver ignores the advertized seg_max
field and assumes the host can accept up to 67 segments
in indirect descriptors, triggering an assert in the bhyve
process.
No objection from: mav
Reviewed by: neel
Reported and tested by: Leon Dang (ldang@nahannisys.com)
MFC after: 2 weeks
After conversion to UTF-8 some INDEX.keymaps descriptions are longer
than the previous limit of 64 bytes.
PR: 193656
Sponsored by: The FreeBSD Foundation
When examining existing processes pmcstat fails to
correctly determine the locations of executable sections
of the process due to a miscalculated virtual load address.
This does not affect the newly launched processes as the
same value passed as a "start address" to the pmcstat_image_link()
thus nullifying the effect of it. The issue manifests itself
in processes not being reported in the pmcstat(8) output and
"dubious frames" being reported.
Fix it for now by ignoring all the sections except the executable
one. This won't fix the issue for objects with multiple
executable sections but helps in majority of real world usecases.
The real solution would be to modify the MAP-IN event to include
the appropriate load address so pmcstat(8) won't have to manually
parse object files to try to determine it.
PR: 198147, 198148
Reviewed by: jhb, rpaulo
MFC after: 2 weeks
The default behavior is to infer the logical and physical sector sizes from
the block device backend. However older versions of Windows only work with
specific logical/physical combinations:
- Vista and Windows 7: 512/512
- Windows 7 SP1: 512/512 or 512/4096
For this reason allow the sector size to be specified using the following
block device option: sectorsize=logical[/physical]
Reported by: Leon Dang (ldang@nahannisys.com)
Reviewed by: grehan
MFC after: 2 weeks
not one that needs to be negotiated. Use the host capabilities
field and not the negotiated field when verifying that indirect
descriptors are supported.
Found with the Redhat Windows viostor driver, which clears
the indirect capability in the negotiated caps and then starts
using them.
Reported and tested by: Leon Dang (ldang@nahannisys.com)
MFC after: 2 weeks
hardcoding /boot/kernel. This allows pmcstat(8) to work without -k when
using nextboot -k or 'boot foo' at the loader to boot alternate kernels.
Differential Revision: https://reviews.freebsd.org/D2425
Reviewed by: adrian, emaste, gnn
MFC after: 2 weeks
Sponsored by: Norse Corp, Inc.
This is needed to support Windows guests that use byte reads to access certain
AHCI registers (e.g. PxTFD.Status and PxTFD.Error).
Reviewed by: grehan, mav
Reported by: Leon Dang (ldang@nahannisys.com)
Differential Revision: https://reviews.freebsd.org/D2469
MFC after: 2 weeks
Prior to this change both functions returned 0 for success, -1 for failure
and +1 to indicate that an exception was injected into the guest.
The numerical value of ERESTART also happens to be -1 so when these functions
returned -1 it had to be translated to a positive errno value to prevent the
VM_RUN ioctl from being inadvertently restarted. This made it easy to introduce
bugs when writing emulation code.
Fix this by adding an 'int *guest_fault' parameter and setting it to '1' if
an exception was delivered to the guest. The return value is 0 or EFAULT so
no additional translation is needed.
Reviewed by: tychon
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D2428
It is not required to use CLO to recover from task file error, it should
be enough to do only stop/start, that does not clear the PxTFD.STS.ERR.
MFC after: 13 days
Using status updates in r282364, block queue on BSY, DRQ or ERR bits set.
This can be a performance penalization for non-NCQ commands, but it is
required for proper error recovery and standard compliance.
MFC after: 2 weeks
Change the nvlist_recv() function to take additional argument that
specifies flags expected on the received nvlist. Receiving a nvlist with
different set of flags than the ones we expect might lead to undefined
behaviour, which might be potentially dangerous.
Update consumers of this and related functions and update the tests.
Approved by: pjd (mentor)
Update man page for nvlist_unpack, nvlist_recv, nvlist_xfer, cap_recv_nvlist
and cap_xfer_nvlist.
Reviewed by: AllanJude
Approved by: pjd (mentor)
