Warner Losh [Thu, 27 Oct 2022 17:32:18 +0000 (11:32 -0600)]
bhyve: Implement MSR_MISC_FEATURES_ENABLES
Linux reads MISC_FEATURES_ENABLES to manage the CPUID faulting feature
(undocumented in the Intel SDM, but documented in 323850-004 (Intel
Virtualization Technology FlexMigration Application Note). Since bhyve
doesn't emulate this feature, we always return 0. Neither does bhyve
support the MONITOR/MWAIT fault bit also in this MSR (which is
documented in the sdm), so always return 0.
Mark Johnston [Tue, 25 Oct 2022 13:16:23 +0000 (09:16 -0400)]
bhyve: Address warnings in blockif_proc()
- Use unsigned types for all arithmetic. Use a new signed variable for
holding the return value of pread() and pwrite().
- Handle short I/O from pwrite().
Mark Johnston [Sat, 22 Oct 2022 17:41:33 +0000 (13:41 -0400)]
bhyve: Fix some warnings in the snapshot code
- Qualify unexported symbols with "static".
- Drop some unnecessary and incorrect casts.
- Avoid arithmetic on void pointers.
- Avoid signed/unsigned comparisons in loops which use nitems() as a
bound.
Mark Johnston [Thu, 8 Sep 2022 23:08:10 +0000 (19:08 -0400)]
bhyve: Address some warnings in bhyverun.c
- Add const and __unused qualifiers where appropriate.
- Localize some global variables.
- Consistently spell vmexit state as "vme" in vmexit handlers, to avoid
shadowing the global vm_exit state array.
- Similarly, avoid shadowing "optarg".
Chuck Tuffli [Sun, 14 Aug 2022 14:47:34 +0000 (07:47 -0700)]
bhyve nvme: Fix Controller init error cases
Fuzzing of bhyve uncovered an assertion failure in the NVMe emulation.
Investigation uncovered several corner cases the code did not handle.
This change handles several Controller initialization errors, including
- bad AQ sizes
- bad AQ vm_map_gpa
- doorbell writes prior to RDY
- doorbell writes to uninitialized queue
- CSTS.RDY if CFS set
Vitaliy Gusev [Thu, 30 Jun 2022 21:21:57 +0000 (14:21 -0700)]
libvmmapi: Add vm_close()
Currently there is no way to safely free a vm structure without
leaking the fd. vm_destroy() closes the fd but also destroys the VM
whereas in some cases a VM needs to be opened (vm_open) and then
closed (vm_close).
Vitaliy Gusev [Thu, 23 Jun 2022 18:46:06 +0000 (11:46 -0700)]
bhyve: Snapshot impovements for 'blockif' backend
When pausing a block I/O device model as part of suspending a VM, wait
for all active block I/O requests to finish before saving snapshot
data. This avoids having to save information about in-flight requests
both in the block_if layer and in storage device models.
For the AHCI device model, the queues are now guaranteed to be idle
when taking a snapshot, so remove the code to save queue state and
rely on the initial state in a resumed VM having all queues already
idle.
This will also simplify adding NVMe snapshot support in the future.
Robert Wing [Sun, 10 Apr 2022 21:37:24 +0000 (13:37 -0800)]
vmm_instruction_emul.c: fix bhyve build
The __diagused macro was used to cure a "set but not used" warning. This
broke the build for bhyve since __diagused is only defined in the
kernel. Define __diagused when not building the kernel.
Fixes: 5241577a223d ("vmm: fix set but not used warning")
Reported by: Jenkins
virtio-console is currently missing .pe_legacy_config, which prevents any
portN configuration from being parsed, and therefore no sockets will be
created.
Robert Wing [Wed, 3 Mar 2021 06:05:47 +0000 (21:05 -0900)]
bhyve/snapshot: provide a way to send other messages/data to bhyve
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.
Robert Wing [Mon, 8 Mar 2021 00:23:29 +0000 (15:23 -0900)]
bhyve/snapshot: use SOCK_DGRAM instead of SOCK_STREAM
The save/restore feature uses a unix domain socket to send messages
from bhyvectl(8) to a bhyve(8) process. A datagram socket will suffice
for this.
An added benefit of using a datagram socket is simplified code. For
bhyve, the listen/accept calls are dropped; and for bhyvectl, the
connect() call is dropped.
EPRINTLN handles raw mode for bhyve(8), use it to print error messages.
Robert Wing [Sat, 27 Feb 2021 21:07:35 +0000 (12:07 -0900)]
bhyve/snapshot: rename and bump size of MAX_SNAPSHOT_VMNAME
MAX_SNAPSHOT_VMNAME is a macro used to set the size of a character
buffer that stores a filename or the path to a file - this file is used
by the save/restore feature.
Since the file doesn't have anything to do with a vm name, rename
MAX_SNAPSHOT_VMNAME to MAX_SNAPSHOT_FILENAME. Bump the size to PATH_MAX
while here.
Robert Wing [Sat, 27 Feb 2021 21:05:52 +0000 (12:05 -0900)]
bhyvectl: reduce code duplication
Combine send_start_checkpoint() and send_start_suspend() into a
single function named snapshot_request().
snapshot_request() is equivalent to send_start_checkpoint() and
send_start_suspend() except that it takes an additional argument. The
additional argument, enum ipc_opcode, is used to determine the type of
snapshot request being performed. Also, switch to using strlcpy instead
of strncpy.
One common method of EOI'ing an interrupt at the IO-APIC level is to
switch the pin to edge triggering mode and then back into level mode.
That would cause the IRR bit to be cleared and thus further interrupts
to be injected. FreeBSD does indeed use that method if the IO-APIC EOI
register is not supported.
The bhyve IO-APIC emulation code didn't clear the IRR bit when doing
that switch, and was also missing acknowledging the IRR state when
trying to inject an interrupt in vioapic_send_intr.
bhyve/ioapic: only account for asserted line in level mode
After modifying a redirection entry only try to inject an interrupt if
the pin is in level mode, pins in edge mode shouldn't take into
account the line assert status as they are triggered by edge changes,
not the line status itself.
Martin Matuska [Thu, 26 Jan 2023 16:50:13 +0000 (17:50 +0100)]
zfs: merge openzfs/zfs@92e0d9d18 (zfs-2.1-release) into stable/13
OpenZFS release 2.1.9
Notable upstream pull requeset merges:
#12829 zfs diff -h/ZFS_DIFF_NO_MANGLE, diff cleanups
#14181 zed: unclean disk attachment faults the vdev
#14252 Activate filesystem features only in syncing context
#14253 Allow reciever to override encryption property in case of replication
#14254 Restrict visibility of per-dataset kstats inside FreeBSD jails
#14255 Zero end of embedded block buffer in dump_write_embedded()
#14261 FreeBSD: zfs_register_callbacks() must implement error check correctly
#14264 Miscellaneous fixes
#14272 Change ZEVENT_POOL_GUID to ZEVENT_POOL to display pool names
#14287 FreeBSD: Remove stray debug printf
#14288 Colorize zfs diff output
#14291 FreeBSD: Fix potential boot panic with bad label
#14328 FreeBSD: catch up to 1400077
Add the glue code to support netlink in Linuxolator.
linux_common(4) now depends on netlink(4).
All netlink protocol constants are consistent with the Linux version.
However, certain OS-specific constants such as AF_INET6, interface
flags or default routing table id, are different between FreeBSD and
Linux. Thus, it may be needed to rewrite some message parts or even
rewrite the whole message, adding or removing some TLVs. The core
netlink implementation code provides efficient rewriting callbacks
which Linuxolator now uses.
Rick Macklem [Wed, 11 Jan 2023 21:20:31 +0000 (13:20 -0800)]
kgssapi: Increase timeout for kernel to gssd(8) upcalls
It turns out that the underlying problem that caused
a Kerberized NFS mount with the "gssname" option to
fail was that the kernel upcall to the gssd(8) daemon
would time out prematurely after 25 seconds. The
gss_acquire_cred() GSSAPI library call
takes about 27 seconds for the case where a desired_name
argument is specified. A similarly long delay occurs
when the gss_init_sec_context() call is made and the
user principal's TGT has expired.
Once the upcall timed out, the kernel code assumed that
the gssd(8) daemon had died and closed the socket.
Ironically, closing the socket did cause the gssd(8)
daemon to terminate via a SIGPIPE signal.
This patch increases the timeout to 5 minutes. Since
a timeout should only occur when the gssd(8) daemon
has died, a long timeout should be ok and seems to fix this
problem.
I still think that commit c33509d49a should remain in the
system, since it allows the mount to complete quickly
and not take nearly 30 seconds.
Rick Macklem [Wed, 11 Jan 2023 21:28:44 +0000 (13:28 -0800)]
nfscl: Improve NFSv4 error message for NFSERR_WRONGSEC
The usual reason for an NFSv4 server replying NFSERR_WRONGSEC
to an operation is that a Kerberos credential is required.
This patch replaces a cryptic "err=10016" with a message
suggesting that a Kerberos TGT is probably needed.
Warner Losh [Wed, 25 Jan 2023 18:31:00 +0000 (11:31 -0700)]
stand/mips: retire BERI boot loader
The folks that created the BERI boot loader no longer need it. They've
long since moved on to other research platforms. Since BERI loader
contains yet another copy of code that I've consolodated; and since it's
impossible to test this platform; and since there are no users, retire
it completely to ease future MFCs.
Warner Losh [Wed, 25 Jan 2023 15:14:45 +0000 (08:14 -0700)]
stand/mips64: Make beri loader compile
The devdesc reorgs in main were done after mips was deleted. Make the
minimal changes to beri's devicename.c needed after that. I have no
ability to test this, however, so it builds with similar warnings to
before all my MFC changes.
Warner Losh [Wed, 25 Jan 2023 14:54:03 +0000 (07:54 -0700)]
stand: update mips uboot to uboot reorg
uboot reorg in main happened after the mips support was removed. Go
ahead and do the same reorg here. Move the mips files from mips/uboot to
uboot/arch/mips. Move mips/uboot/Makefile to
uboot/arch/mips/Makefile.inc and cut out the common lines. Split uboot
target into uboot and uboot.bin to better fit into reorg.
Some devices have CDC_CM descriptors that would point us to
the wrong interfaces. Add a quirk to ignore those (prefering the
CDC_UNION descriptor effectively)
Reviewed by: manu
MFC after: 1 week
Sponsored by: Beckhoff Automation GmbH & Co. KG
Differential Revision: https://reviews.freebsd.org/D37942
Warner Losh [Wed, 25 Jan 2023 04:19:48 +0000 (21:19 -0700)]
stand: mfc notes
MFCing stand is getting complicated. This file contains notes about
merging from 14, in summary:
o UFS changes have already been merged.
o The ZFS changes, on the whole, cannot be merged because OpenZFS
versions are different.
o MIPS is still present in 13, so commits to tear down mips
support.
o Some of the 14 GELI changes depend on crypto changes not yet merged.
o One change bumped the version to 14.x, and that shouldn't be merged.
The hashes listed should not be merged, unless something changes.
Coleman Kane [Tue, 24 Jan 2023 19:20:50 +0000 (14:20 -0500)]
linux 6.2 compat: zpl_set_acl arg2 is now struct dentry
Linux 6.2 changes the second argument of the set_acl operation to be a
"struct dentry *" rather than a "struct inode *". The inode* parameter
is still available as dentry->d_inode, so adjust the call to the _impl
function call to dereference and pass that pointer to it.
Also document that the get_acl -> get_inode_acl member name change from
commit 884a693 was an API change also introduced in Linux 6.2.
Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Richard Yao <richard.yao@alumni.stonybrook.edu> Signed-off-by: Coleman Kane <ckane@colemankane.org>
Closes #14415
Warner Losh [Fri, 20 Jan 2023 23:33:37 +0000 (16:33 -0700)]
byteswap.h: Add a glibc/linux compatible byteswap.h
For endian.h to work instead of sys/endian.h, some software needs
byteswap.h available. It must define {__,}byteswap_{16,32,64}.
Included sys/_endian.h to get an appropriate __byteswap16, etc
and defines the new macros in terms of them. Enhance _endian.h
to allow it to be included from here too.
Warner Losh [Fri, 20 Jan 2023 23:32:45 +0000 (16:32 -0700)]
linux: For better compatibility, provide compatible endian.h
Add endian.h. This includes sys/endian.h and then adds extra defines
that glibc defines with double underscores for our
_{BIG,BYTE,LITTLE,PDP}_ENDIAN macros. We also define __FLOAT_WORD_ORDER
to be the same as _BYTE_ENDIAN since FreeBSD doesn't currently define
this, and the default with glibc is exactly this for our platforms.
Move common parts of endian.h and sys/endian.h into sys/_endian.h
to limit namespace pollution from endian.h
All this gives us good compatibility with Linux. There may be one or two
upstreams that haven't integrated the patches I tried to send up.
There are some minor differences:
o The extra glibc macros are not defined. These are all
controlled with either __ at the start, or only defined
when glibc is being built. We also don't define macros
that are used internally in glibc that would pollute
the namespace.
o For complete compatibility, this change must also be
paired with providing a glibc-compatible byteswap.h.
Warner Losh [Tue, 21 Sep 2021 04:02:35 +0000 (22:02 -0600)]
endian.h: Use the __bswap* versions
Make it possible to have all these macros work without bswap* being
defined. bswap* is part of the application namespace and applications
are free to redefine those functions.
projects / FreeBSD / FreeBSD.git / log