vt(4): allow up to _SIG_MAXSIG (128) for VT_SETMODE
VT_SETMODE ioctl currently checks the provided signal numbers with its
own ISSIGVALID macro that uses NSIG (32) as a maximum, although the code
that will actually send the signal in sys/kern/kern_sig.c uses
_SIG_VALID which allows up to _SIG_MAXSIG (128).
This change aligns the vt code with the kernel internals and enables the
use of higher signal numbers so that applications are not limited to
SIGUSR1 and SIGUSR2 for vt release and acquire signals.
Signed-off-by: Quentin Thébault <quentin.thebault at defenso.fr>
Reviewed by: emaste, imp, kevans
Differential Revision: https://reviews.freebsd.org/D53615
x86: Add intr_enable_src()
Function to enable specific IRQ source.
This will be used by the s2idle code to enable just SCIs on x86 to break
the CPU out of idle.
Reviewed by: olce
Approved by: olce
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D48734
acpi: Suspend-to-idle support (s2idle)
Implement STYPE_SUSPEND_TO_IDLE sleep type added in c43473dc9b83
("sys/power: Generic sleep types").
This is a prerequisite for the firmware to enter the S0ix states. When
suspending to idle, the system stays in an ACPI S0 state, but the CPUs
are idled and devices are suspended/resumed before and after this as
they would be when entering any other sleep type (except for AWAKE and
POWEROFF).
Factor out do_standby, do_sleep, and add a new do_idle function for
idling the CPU (a future patch will make this an idle loop and not just
a simple cpu_idle() call). In do_idle, SCIs (interrupt 9) are enabled to
allow wake events to break the CPU out of idle.
Record all the steps made instead of just the last one in slp_state,
which allows for more flexible unwinding (will be useful to not have to
goto breakout if the SPMC entry call fails when that is committed).
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enc: create an interface at SI_SUB_PROTO_IF stage
Creation of enc0 before SI_SUB_PROTO_MC mangles the MLD list as well as
encounters IGMP mutex not initialized yet.
Reported & tested by: mjg
NB: the enc(4) is not a true interface indeed. In a perfect world the
module shall not create a cloner, shall not enter if_attach(), shall not
trigger ifnet_arrival_event, neither shall have any protocol attached to
it. The enc0 exists for two purposes: 1) create a bpf(9) tap; 2) to allow
injection packets in the middle of ipsec(4) processing temporarily
rewriting m_pkthdr.rcvif to point at enc0. While the problem 1 is already
solved with a recent divorce between bpf(9) and ifnet(9), the problem 2 is
harder to solve without breaking packet filter rules that use "via enc0".
loader.efi: Only use SPCR if enabled.
SerialPort in the SPCR is zeroed when serial redirection is disabled,
rather than the SPCR being omitted from the ACPI tables ony many
systems. Check to see that SerialPort.Address is non-zero before using.
FreeBSD would fail to boot on systems that could have a serial port
redireciton, but don't have it enabled because the loader would create a
bogus hw.uart.console. While one could unset this value to boot, you
couldn't do that automatically very easily. Instead, don't even look
at the SPCR table if the SerialPort is zero'd.
PR: 292206
MFC After: 3 days
Sponsored by: Netflix
Co-authored-by: Warner Losh <imp at FreeBSD.org>
Closes: https://github.com/freebsd/freebsd-src/pull/1948
(cherry picked from commit d82698ac68c23d856716dc9f6524b9ef363d7eba)
sdt: Fix the probe ID type in struct sdt_probe
This is supposed to be a dtrace_id_t, which is a uint32_t, while id_t is
a uint64_t. sdt.h avoids depending on dtrace.h so we can't use
dtrace_id_t directly.
Bump __FreeBSD_version since the layout of structures in the SDT probe
linker set has changed.
Sponsored by: NetApp, Inc.
Sponsored by: Klara, Inc.
vm_map_entry_delete(): fix the calculation of swap release
Reported and tested by: andrew
Fixes: d160447129fe060b28bcd6ba429d17afdf494ff2
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
libc/aarch64: Use MOPS implementations of memcpy/memmove/memset where availble
Reviewed by: andrew
Sponsored by: Arm Ltd
Differential Revision: https://reviews.freebsd.org/D54560
crypto: Update sha256 and sha512 ifuncs to use passed HWCAP flags
Reviewed by: andrew
Sponsored by: Arm Ltd
Differential Revision: https://reviews.freebsd.org/D54600
arm64: Enable MOPS in userspace
Detect presence of FEAT_MOPS, and enable instruction set and set HWCAP2 flag
if present.
Add handler for MOE exceptions.
Reviewed by: andrew
Sponsored by: Arm Ltd
Differential Revision: https://reviews.freebsd.org/D54558
arm64: Correctly align the SVE signal context
The SVE signal context needs to be correctly aligned. Fix this by
creating a new macro to calculate the needed size to provide this
alignment, and use it when setting and checking the saved SVE signal
context.
Reported by: cperciva
Reviewed by: cperciva, markj
Sponsored by: Arm Ltd
Differential Revision: https://reviews.freebsd.org/D54396
(cherry picked from commit a9e77eb7016df70723c208fc09fbd01ec23a732d)
arm64: Split out accessing special registers
We shouldn't need to include armreg.h just to access special registers
that are not defined in this file. Split out the parts that should be
common with arm64.h and hypervisor.h.
Reviewed by: emaste
Sponsored by: Arm Ltd
Differential Revision: https://reviews.freebsd.org/D53324
(cherry picked from commit b57a571a001958febec042e15c571c5074ce44ce)
dev/fdt: Add support for non-PCI MSI interrupts
Some non-PCI devices can send interrupts, e.g. the Arm SMMU or GICv5
Interrupt Wire Bridge. Add support for these by implementing pci_get_id
and pci_alloc_msi and the MSI/MSI-X parts of the PCIB interface.
Only the MSI parts of the PCI interface are added as that is all I am
able to test.
Sponsored by: Arm Ltd
Differential Revision: https://reviews.freebsd.org/D53330
(cherry picked from commit 68e6422c6c91170a615e77028683a157e8e39d05)
arm64: Add a define for MDCR_EL2_E2PB_EL1_0_NO_TRAP
This will be used by the SPE driver.
(commit message by andrew@)
Reviewed by: andrew
Sponsored by: Arm Ltd
(cherry picked from commit be0ded8d64e3e8c7bf6bf59b236a086f6a98e7b6)
arm64: Add the PMBSR_MSS_BSC_BUFFER_FILLED define
This will be used by the SPE driver.
(commit message by andrew@)
Reviewed by: andrew
Sponsored by: Arm Ltd
(cherry picked from commit 736b7ec362a3db58007361ecbbb62dfb4bb3031e)
