Reads of the MSI-X capabilites aren't emulated by passthru devices
yet. The guest will read the host MSI-X capabilites which could
cause issues.
Reviewed by: markj
Differential Revision: https://reviews.freebsd.org/D32686
Sponsored by: Beckhoff Automation GmbH & Co. KG
On startup all virtual BARs are registered.
Additionally, the encoding bit in the virtual cmd register is set.
After that, the passthru emulation overwrites the virtual cmd register with
the physical one.
This could lead to a mismatch between registered BARs and the encoding
bits in the cmd register.
Instead of writing the physical to the virtual cmd register,
write the virtual to the physical cmd register to solve this issue.
Reviewed by: markj
Differential Revision: https://reviews.freebsd.org/D32687
Sponsored by: Beckhoff Automation GmbH & Co. KG
OVMF always uses 0xC0000000 as base address for 32 bit PCI MMIO space.
For that reason, we should use that address too.
Reviewed by: markj
Differential Revision: https://reviews.freebsd.org/D31051
Sponsored by: Beckhoff Automation GmbH & Co. KG
OVMF will fail, if large 64 bit BARs are used. GCD-Map doesn't cover
64 bit addresses of BARs.
OVMF assumes that 64 bit addresses of BARS are located on next 32 GB
boundary behind Top of High RAM.
This patch moves 64 bit BARs on next 32 GB boundary behind Top of High
RAM to match OVMF assumptions.
Differential Revision: https://reviews.freebsd.org/D27970
Sponsored by: Beckhoff Automation GmbH & Co. KG
Allocating a BAR will call baraddr which maps the framebuffer. No need
to allocate it explicitly on init.
Reviewed by: grehan
Sponsored by: Beckhoff Autmation GmbH & Co. KG
Differential Revision: https://reviews.freebsd.org/D32596
Tell the guest whether a BAR uses prefetched memory or not for
passthru devices by using the same lobits as the physical device.
Reviewed by: grehan
Sponsored by: Beckhoff Autmation GmbH & Co. KG
Differential Revision: https://reviews.freebsd.org/D32685
Bump the firmware version to 14.0 and set the firmware release date
to today.
Reviewed by: jhb, bz, imp
Differential Revision: https://reviews.freebsd.org/D32534
Note, this breaks compatibility with snapshots generated by older builds
of bhyve(8).
Fixes: 7fa233534736 ("bhyve: Map the MSI-X table unconditionally for passthrough")
Reported by: Greg V <greg@unrelenting.technology>
Reviewed by: grehan, bz
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D32523
Bhyve could emulate wrong PCI registers.
In the best case, the guest reads wrong registers and the device driver would
report some errors.
In the worst case, the guest writes to wrong PCI registers and could brick
hardware when using PCI passthrough.
According to Intels specification, low bits of CFGADR should be
ignored. Some OS like linux may rely on it. Otherwise, bhyve could
emulate a wrong PCI register.
E.g.
If linux would like to read 2 bytes from offset 0x02, following would
happen.
linux:
outl 0x80000002 at CFGADR
inw at CFGDAT + 2
bhyve:
cfgoff = 0x80000002 & 0xFF = 0x02
coff = cfgoff + (port - CFGDAT) = 0x02 + 0x02 = 0x04
Bhyve would emulate the register at offset 0x04 not 0x02.
Reviewed By: #bhyve, grehan
Differential Revision: https://reviews.freebsd.org/D31819
Sponsored by: Beckhoff Automation GmbH & Co. KG
Let's make it clear to users that -k is for configuration files.
Also, point to bhyve_config(5) in the paragraph describing the flag.
Reviewed by: jhb
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D32467
It is possible for the PBA to reside in the same page as the MSI-X
table. And, while devices are not supposed to do this, at least some
Intel wifi devices place registers in a page shared with the MSI-X
table. To handle the first case we currently map the PBA page using
/dev/mem, and the second case is not handled.
Kill two birds with one stone: map the MSI-X table BAR using the
PCIOCBARMMAP ioctl instead of /dev/mem, and map the entire table so that
accesses beyond the bounds of the table can be emulated. Regions of the
BAR not containing the table are left unmapped.
Reviewed by: bz, grehan, jhb
MFC after: 3 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D32359
Allow user to specify the IP address available for gdb debugger.
Reviewed by: jhb, grehan, rgrimes, bcr (man pages)
Differential Revision: https://reviews.freebsd.org/D29607
This removes the dependency on /dev/io.
PR: 251046
Reviewed by: jhb
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D31308
bhyve can also make use of fspacectl(2) to implement BOP_DELETE with
hole-punching. Since it is not desirable to do zero-filling for large
DEALLOCATE/UNMAP range, candelete is not set if pathconf(2) indicates
that the underlying file system does not support native
VOP_DEALLOCATE(9).
Sponsored by: The FreeBSD Foundation
Reviewed by: grehan
Differential Revision: https://reviews.freebsd.org/D28880
If you want communications with the outside world and tell bhyve to
create an interfaces then it should be usable as well.
Rather than relying on the sysctl net.link.tap.up_on_open automatically
try to IFF_UP the opened tap device.
MFC after: 10 days
Reviewed by: markj, grehan
Differential Revision: https://reviews.freebsd.org/D31342
The UEFI driver included with Rocky Linux 8.4 uncovered an existing bug
in the NVMe emulation's construction of iovec's.
By default, NVMe data transfer operations use a scatter-gather list in
which all entries point to a fixed size memory region. For example, if
the Memory Page Size is 4KiB, a 2MiB IO requires 512 entries. Lists
themselves are also fixed size (default is 512 entries).
Because the list size is fixed, the last entry is special. If the IO
requires more than 512 entries, the last entry in the list contains the
address of the next list of entries. But if the IO requires exactly 512
entries, the last entry points to data.
The NVMe emulation missed this logic and unconditionally treated the
last entry as a pointer to the next list. Fix is to check if the
remaining data is greater than the page size before using the last entry
as a pointer to the next list.
PR: 256422
Reported by: dave@syix.com
Tested by: jason@tubnor.net
MFC after: 5 days
Relnotes: yes
Reviewed by: imp, grehan
Differential Revision: https://reviews.freebsd.org/D30897
Register a resize callback with the blockif interface. When the
callback fires, update the size of the disk and notify the guest via a
configuration change interrupt.
Reviewed by: grehan, markj
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D30506
This allows device models to assert VirtIO interrupts for reasons
other than publishing changes to a VirtIO ring such as configuration
changes.
Reviewed by: grehan, markj
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D30505
Allow clients of blockif to register a resize callback handler. When
a callback is registered, register an EVFILT_VNODE kevent watching the
backing store for a change in the file's attributes. If the size has
changed when the kevent fires, invoke the clients' callback.
Currently resize detection is limited to backing stores that support
EVFILT_VNODE kevents such as regular files.
Reviewed by: grehan, markj
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D30504
This allows registering an event to watch for changes to a file's
attributes. This is a bit imperfect as it would be nice to have a way
to determine if an fd can use EVFILT_VNODE successfully. mevent's
current structure does not permit that and a failure to register a
single kevent impacts several other kevents.
Reviewed by: grehan, markj
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D30503
Change mevent_add*() to synchronously add the new kevent. This
permits reporting event registration failures to the caller and avoids
failing the registration of other, unrelated events queued up in the
same batch.
Reviewed by: grehan, markj
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D30502
This will be used to inject keyboard/mouse input events into a guest.
The command line syntax is:
-s <slot>,virtio-input,/dev/input/eventX
Reviewed by: jhb (bhyve), grehan
Obtained from: Corvin Köhne <C.Koehne@beckhoff.com>
MFC after: 3 weeks
Relnotes: yes
Differential Revision: https://reviews.freebsd.org/D30020
Move initialization of the mutex/condition variables required by the
save/restore feature to their own function.
The unix domain socket that facilitates communication between bhyvectl
and bhyve doesn't rely on these variables in order to be functional.
Reviewed by: markj
Differential Revision: https://reviews.freebsd.org/D30281
This is a step towards sending messages (other than suspend/checkpoint)
from bhyvectl to bhyve.
Introduce a new struct, ipc_message - this struct stores the type of
message and a union containing message specific structures for the type
of message being sent.
Reviewed by: grehan
Differential Revision: https://reviews.freebsd.org/D30221
Fixes segfault with the command `bhyve -s 0,virtio-scsi`, which is used
by some third party software to probe bhyve for virtio-scsi support.
Reviewed by: jhb
MFC after: 1 day
Sponsored by: iXsystems, Inc.
Differential Revision: https://reviews.freebsd.org/D29926
- Use appropriate mdoc macros
- Document that tcp= is a synonym to rfb= (tcp is used in the examples,
but never mentioned)
- Clarify the IP address specification
MFC after: 2 weeks
