With the current implementation of managed fictitious ranges when
also using VM_PHYSSEG_DENSE, a user could try to register a
fictitious range that starts inside of vm_page_array, but then
overrruns it (because the end of the fictitious range is greater than
vm_page_array_size + first_page). This would result in PHYS_TO_VM_PAGE
returning unallocated pages from past the end of vm_page_array. The
same could happen if a user tried to register a segment that starts
outside of vm_page_array but ends inside of it.
In order to fix this, allow vm_phys_fictitious_{reg/unreg}_range to
use a set of pages from vm_page_array, and allocate the rest.
Sponsored by: Citrix Systems R&D
Reviewed by: kib, alc
vm/vm_phys.c:
- Allow registering/unregistering fictitious ranges that overrun
vm_page_array.
The MD allocators were very common, however there were some minor
differencies. These differencies were all consolidated in the MI allocator,
under ifdefs. The defines from machine/vmparam.h turn on features required
for a particular machine. For details look in the comment in sys/sf_buf.h.
As result no MD code left in sys/*/*/vm_machdep.c. Some arches still have
machine/sf_buf.h, which is usually quite small.
Tested by: glebius (i386), tuexen (arm32), kevlo (arm32)
Reviewed by: kib
Sponsored by: Netflix
Sponsored by: Nginx, Inc.
null terminate.
Temporarily use "From: $user@$hostname" rather than "From: $user".
The latter exposes incompatible behavior if using dma(8). sendmail(8)
(and other alternatives) canonify either form on submission (even
if masquerading), but dma will leak a non-compliant address to
the internet.
In vdev_get_stats, check that the vdev is not a hole before computing the
fragmentation. This fixes a panic when removing log device.
Illumos issue:
5049 panic when removing log device
Author: Alex Reece <alex@delphix.com>
MFC after: 2 weeks
Make the sysinit tool a build tool rather than building in with
/usr/bin/cc and running it from OBJDIR. (It will be moved to usr.bin
once a manpage is written and a few style cleanups are done.)
Split the makefile bits for Hans' kernel shim layer into their own
includable kshim.mk.
Move USB support into a .mk file so loaders can include it.
opt_inet6.h into kmod.mk by forcing almost everybody to eat the same
dogfood. While at it, consolidate the opt_bpf.h and opt_mroute.h
targets here too.
Replace a single soft updates thread with a thread per FFS-filesystem
mount point. The threads are associated with the bufdaemon process.
Reviewed by: kib
Tested by: Peter Holm and Scott Long
MFC after: 2 weeks
Sponsored by: Netflix
In linux EXT4_LINK_MAX is now 64000. We can't really do that
since i_nlink and va_nlink are signed so setting higher values
is likely to cause trouble.
This is a system limitation so set the EXT_LINK_MAX to
what the system can handle.
MFC after: 3 days
This allows for CARP interfaces to be used in jails e.g.
ip4.addr = "em0|10.10.1.20/32 vhid 1 pass MyPass advskew 100"
Before this change using exec.prestart to configure a CARP address
would result in the wrong MAC being broadcast on startup as jail creates
IP aliases to support ip[4|6].addr before exec.prestart is executed.
PR: 191832
Reviewed by: jamie
MFC after: 1 week
X-MFC-With: r269340
Phabric: D528
Sponsored by: Multiplay
Also disable a couple of ACPI devices that are not usable under Dom0.
To this end a couple of booleans are added that allow disabling ACPI
specific devices.
Sponsored by: Citrix Systems R&D
Reviewed by: jhb
x86/xen/xen_nexus.c:
- Return BUS_PROBE_SPECIFIC in the Xen Nexus attachement routine to
force the usage of the Xen Nexus.
- Attach the ACPI bus when running as Dom0.
dev/acpica/acpi_cpu.c:
dev/acpica/acpi_hpet.c:
dev/acpica/acpi_timer.c
- Add a variable that gates the addition of the devices.
x86/include/init.h:
- Declare variables that control the attachment of ACPI cpu, hpet and
timer devices.
Minor fixes to make the Xen Dom0 console work. This includes always
returning there's pending input in xencons_has_input, because on Dom0
there's no shared ring and we cannot test the indexes. The second
fix is to use the CONSOLEIO_read hypercall in order to read input
data from the Xen console.
Sponsored by: Citrix Systems R&D
dev/xen/console/xencons_ring.c:
- Always return true in xencons_has_input for Dom0.
- Implement Dom0 console support for xencons_handle_input.
Allow a privileged Xen guest (Dom0) to parse the MADT ACPI interrupt
overrides and register them with the interrupt subsystem.
Also add a Xen specific implementation for bus_config_intr that
registers interrupts on demand for all the vectors less than
FIRST_MSI_INT.
Sponsored by: Citrix Systems R&D
x86/xen/pvcpu_enum.c:
- Use helper functions from x86/acpica/madt.c in order to parse
interrupt overrides from the MADT.
- Walk the MADT and register any interrupt override with the
interrupt subsystem.
x86/xen/xen_nexus.c:
- Add a custom bus_config_intr method for Xen that intercepts calls
to configure unset interrupts and registers them on the fly (if the
vector is < FIRST_MSI_INT).
Split a portion of the code in madt_parse_interrupt_override to a
separate function, that is public and can be used from other code.
This will be needed by the Xen port, since FreeBSD needs to parse the
interrupt overrides and notify Xen about them.
This commit should not introduce any functional change.
Sponsored by: Citrix Systems R&D
Reviewed by: jhb, gibbs
x86/acpica/madt.c:
- Introduce madt_parse_interrupt_values() that parses the intr
information from ACPI and returns the triggering and the polarity.
This is a subset of the functionality that used to be part of
madt_parse_interrupt_override().
- Make madt_found_sci_override a global variable that can be used
from other files.
x86/include/acpica_machdep.h:
- Prototype of madt_parse_interrupt_values.
- Extern declaration of madt_found_sci_override.
Lower the quality of the MADT ACPI enumerator, so on Xen Dom0 we can
force the usage of the Xen mptable enumerator even when ACPI is
detected.
This is needed because Xen might restrict the number of vCPUs
available to Dom0, but the MADT ACPI table parsed in FreeBSD is the
native one (which enumerates all the CPUs available in the system).
Sponsored by: Citrix Systems R&D
Reviewed by: gibbs
x86/acpica/madt.c:
- Lower MADT enumerator quality to -50.
x86/xen/pvcpu_enum.c:
- Rise Xen PV enumerator to 0.
This change inserts the Xen interrupt subsystem (event channels)
initialization between the system interrupt initialization and the IO
APIC source registration.
This is needed when running on Dom0, that routes physical interrupts
on top of event channels, so that the interrupt sources found during
IO APIC initialization can be registered using the Xen interrupt
subsystem.
The resulting order in the SI_SUB_INTR stage is the following:
- System intr initialization
- Xen intr initalization
- IO APIC source registration
Sponsored by: Citrix Systems R&D
x86/x86/local_apic.c:
- Change order of apic_setup_io to be called after xen interrupt
subsystem is setup.
x86/xen/xen_intr.c:
- Init Xen event channels before apic_setup_io.
Add a new DDB command to dump all registered event channels.
Sponsored by: Citrix Systems R&D
x86/xen/xen_intr.c:
- Add a new xen_evtchn command to DDB in order to dump all
information related to event channels.
Mask all event channels during initialization. This is done so that we
don't receive spurious interrupts while dynamically registering new
event channels. There's a small window during registration where an
event channel can fire before we have attached a handler to it.
Sponsored by: Citrix Systems R&D
x86/xen/xen_intr.c:
- Mask all event channels on init.
This allows Dom0 to manage physical hardware, redirecting the
physical interrupts to event channels.
Sponsored by: Citrix Systems R&D
x86/xen/xen_intr.c:
- Expand struct xenisrc to hold the level and triggering of PIRQ
event channels.
- Implement missing methods in xen_intr_pirq_pic.
- Allow xen_intr_alloc_isrc to take a vector parameter that globally
identifies the interrupt. This is only used for PIRQs that are
bound to a specific hardware IRQ.
- Introduce xen_register_pirq used to register IO APIC legacy PIRQ
interrupts.
- Add support for the dynamic PIRQ EOI map, this shared memory is
modified by Xen (if it suppoorts that feature), and notifies the
guest if an EOI is needed or not. If it's not available fall back
to the old implementation using PHYSDEVOP_irq_status_query.
- Rename xen_intr_isrc_count to xen_intr_auto_vector_count and
replace it's usages.
- Align static variables by name.
xen/xen_intr.h:
- Add prototype for xen_register_pirq.
build time by using atf_tc_get_config_var(tc, "srcdir"))
This will allow end-users to move the binaries to different locations
after they've been built without having to rebuild the binaries with
the new paths
Phabric: D525 (part of a larger patch)
Reviewed by: jmmv
Approved by: jmmv (co-mentor)
This allows to avoid extra network traffic when copying files on NTFS iSCSI
disks within one storage host by drag'n'dropping them in Windows Explorer
of Windows 8/2012. It should also accelerate Hyper-V VM operations, etc.
MFC after: 2 weeks
Sponsored by: iXsystems, Inc.
