259073 |
07-Dec-2013 |
peter |
Hoist all the mergeinfo up to the root in preparation for enforcing merges to the root only. All MFC's were rerecorded to the root.
Going forward, if an MFC includes mergeinfo, it will need to be made to the root and committed from the root. Merges with --ignore-ancestry or diff | patch can go anywhere.
The mergeinfo in HEAD is in a bad state from years of neglect and manual tampering and this was branched into 10.x. This confuses the coalescing code and prevents it from doing its job.
Approved by: re (gjb, implicit) |
256281 |
10-Oct-2013 |
gjb |
Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.
Approved by: re (implicit) Sponsored by: The FreeBSD Foundation
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255040 |
29-Aug-2013 |
gibbs |
Implement vector callback for PVHVM and unify event channel implementations
Re-structure Xen HVM support so that: - Xen is detected and hypercalls can be performed very early in system startup. - Xen interrupt services are implemented using FreeBSD's native interrupt delivery infrastructure. - the Xen interrupt service implementation is shared between PV and HVM guests. - Xen interrupt handlers can optionally use a filter handler in order to avoid the overhead of dispatch to an interrupt thread. - interrupt load can be distributed among all available CPUs. - the overhead of accessing the emulated local and I/O apics on HVM is removed for event channel port events. - a similar optimization can eventually, and fairly easily, be used to optimize MSI.
Early Xen detection, HVM refactoring, PVHVM interrupt infrastructure, and misc Xen cleanups:
Sponsored by: Spectra Logic Corporation
Unification of PV & HVM interrupt infrastructure, bug fixes, and misc Xen cleanups:
Submitted by: Roger Pau Monné Sponsored by: Citrix Systems R&D
sys/x86/x86/local_apic.c: sys/amd64/include/apicvar.h: sys/i386/include/apicvar.h: sys/amd64/amd64/apic_vector.S: sys/i386/i386/apic_vector.s: sys/amd64/amd64/machdep.c: sys/i386/i386/machdep.c: sys/i386/xen/exception.s: sys/x86/include/segments.h: Reserve IDT vector 0x93 for the Xen event channel upcall interrupt handler. On Hypervisors that support the direct vector callback feature, we can request that this vector be called directly by an injected HVM interrupt event, instead of a simulated PCI interrupt on the Xen platform PCI device. This avoids all of the overhead of dealing with the emulated I/O APIC and local APIC. It also means that the Hypervisor can inject these events on any CPU, allowing upcalls for different ports to be handled in parallel.
sys/amd64/amd64/mp_machdep.c: sys/i386/i386/mp_machdep.c: Map Xen per-vcpu area during AP startup.
sys/amd64/include/intr_machdep.h: sys/i386/include/intr_machdep.h: Increase the FreeBSD IRQ vector table to include space for event channel interrupt sources.
sys/amd64/include/pcpu.h: sys/i386/include/pcpu.h: Remove Xen HVM per-cpu variable data. These fields are now allocated via the dynamic per-cpu scheme. See xen_intr.c for details.
sys/amd64/include/xen/hypercall.h: sys/dev/xen/blkback/blkback.c: sys/i386/include/xen/xenvar.h: sys/i386/xen/clock.c: sys/i386/xen/xen_machdep.c: sys/xen/gnttab.c: Prefer FreeBSD primatives to Linux ones in Xen support code.
sys/amd64/include/xen/xen-os.h: sys/i386/include/xen/xen-os.h: sys/xen/xen-os.h: sys/dev/xen/balloon/balloon.c: sys/dev/xen/blkback/blkback.c: sys/dev/xen/blkfront/blkfront.c: sys/dev/xen/console/xencons_ring.c: sys/dev/xen/control/control.c: sys/dev/xen/netback/netback.c: sys/dev/xen/netfront/netfront.c: sys/dev/xen/xenpci/xenpci.c: sys/i386/i386/machdep.c: sys/i386/include/pmap.h: sys/i386/include/xen/xenfunc.h: sys/i386/isa/npx.c: sys/i386/xen/clock.c: sys/i386/xen/mp_machdep.c: sys/i386/xen/mptable.c: sys/i386/xen/xen_clock_util.c: sys/i386/xen/xen_machdep.c: sys/i386/xen/xen_rtc.c: sys/xen/evtchn/evtchn_dev.c: sys/xen/features.c: sys/xen/gnttab.c: sys/xen/gnttab.h: sys/xen/hvm.h: sys/xen/xenbus/xenbus.c: sys/xen/xenbus/xenbus_if.m: sys/xen/xenbus/xenbusb_front.c: sys/xen/xenbus/xenbusvar.h: sys/xen/xenstore/xenstore.c: sys/xen/xenstore/xenstore_dev.c: sys/xen/xenstore/xenstorevar.h: Pull common Xen OS support functions/settings into xen/xen-os.h.
sys/amd64/include/xen/xen-os.h: sys/i386/include/xen/xen-os.h: sys/xen/xen-os.h: Remove constants, macros, and functions unused in FreeBSD's Xen support.
sys/xen/xen-os.h: sys/i386/xen/xen_machdep.c: sys/x86/xen/hvm.c: Introduce new functions xen_domain(), xen_pv_domain(), and xen_hvm_domain(). These are used in favor of #ifdefs so that FreeBSD can dynamically detect and adapt to the presence of a hypervisor. The goal is to have an HVM optimized GENERIC, but more is necessary before this is possible.
sys/amd64/amd64/machdep.c: sys/dev/xen/xenpci/xenpcivar.h: sys/dev/xen/xenpci/xenpci.c: sys/x86/xen/hvm.c: sys/sys/kernel.h: Refactor magic ioport, Hypercall table and Hypervisor shared information page setup, and move it to a dedicated HVM support module.
HVM mode initialization is now triggered during the SI_SUB_HYPERVISOR phase of system startup. This currently occurs just after the kernel VM is fully setup which is just enough infrastructure to allow the hypercall table and shared info page to be properly mapped.
sys/xen/hvm.h: sys/x86/xen/hvm.c: Add definitions and a method for configuring Hypervisor event delievery via a direct vector callback.
sys/amd64/include/xen/xen-os.h: sys/x86/xen/hvm.c:
sys/conf/files: sys/conf/files.amd64: sys/conf/files.i386: Adjust kernel build to reflect the refactoring of early Xen startup code and Xen interrupt services.
sys/dev/xen/blkback/blkback.c: sys/dev/xen/blkfront/blkfront.c: sys/dev/xen/blkfront/block.h: sys/dev/xen/control/control.c: sys/dev/xen/evtchn/evtchn_dev.c: sys/dev/xen/netback/netback.c: sys/dev/xen/netfront/netfront.c: sys/xen/xenstore/xenstore.c: sys/xen/evtchn/evtchn_dev.c: sys/dev/xen/console/console.c: sys/dev/xen/console/xencons_ring.c Adjust drivers to use new xen_intr_*() API.
sys/dev/xen/blkback/blkback.c: Since blkback defers all event handling to a taskqueue, convert this task queue to a "fast" taskqueue, and schedule it via an interrupt filter. This avoids an unnecessary ithread context switch.
sys/xen/xenstore/xenstore.c: The xenstore driver is MPSAFE. Indicate as much when registering its interrupt handler.
sys/xen/xenbus/xenbus.c: sys/xen/xenbus/xenbusvar.h: Remove unused event channel APIs.
sys/xen/evtchn.h: Remove all kernel Xen interrupt service API definitions from this file. It is now only used for structure and ioctl definitions related to the event channel userland device driver.
Update the definitions in this file to match those from NetBSD. Implementing this interface will be necessary for Dom0 support.
sys/xen/evtchn/evtchnvar.h: Add a header file for implemenation internal APIs related to managing event channels event delivery. This is used to allow, for example, the event channel userland device driver to access low-level routines that typical kernel consumers of event channel services should never access.
sys/xen/interface/event_channel.h: sys/xen/xen_intr.h: Standardize on the evtchn_port_t type for referring to an event channel port id. In order to prevent low-level event channel APIs from leaking to kernel consumers who should not have access to this data, the type is defined twice: Once in the Xen provided event_channel.h, and again in xen/xen_intr.h. The double declaration is protected by __XEN_EVTCHN_PORT_DEFINED__ to ensure it is never declared twice within a given compilation unit.
sys/xen/xen_intr.h: sys/xen/evtchn/evtchn.c: sys/x86/xen/xen_intr.c: sys/dev/xen/xenpci/evtchn.c: sys/dev/xen/xenpci/xenpcivar.h: New implementation of Xen interrupt services. This is similar in many respects to the i386 PV implementation with the exception that events for bound to event channel ports (i.e. not IPI, virtual IRQ, or physical IRQ) are further optimized to avoid mask/unmask operations that aren't necessary for these edge triggered events.
Stubs exist for supporting physical IRQ binding, but will need additional work before this implementation can be fully shared between PV and HVM.
sys/amd64/amd64/mp_machdep.c: sys/i386/i386/mp_machdep.c: sys/i386/xen/mp_machdep.c sys/x86/xen/hvm.c: Add support for placing vcpu_info into an arbritary memory page instead of using HYPERVISOR_shared_info->vcpu_info. This allows the creation of domains with more than 32 vcpus.
sys/i386/i386/machdep.c: sys/i386/xen/clock.c: sys/i386/xen/xen_machdep.c: sys/i386/xen/exception.s: Add support for new event channle implementation.
|
251767 |
14-Jun-2013 |
gibbs |
Upgrade Xen interface headers to Xen 4.2.1.
Move FreeBSD from interface version 0x00030204 to 0x00030208. Updates are required to our grant table implementation before we can bump this further.
sys/xen/hvm.h: Replace the implementation of hvm_get_parameter(), formerly located in sys/xen/interface/hvm/params.h. Linux has a similar file which primarily stores this function.
sys/xen/xenstore/xenstore.c: Include new xen/hvm.h header file to get hvm_get_parameter().
sys/amd64/include/xen/xen-os.h: sys/i386/include/xen/xen-os.h: Correctly protect function definition and variables from being included into assembly files in xen-os.h
Xen memory barriers are now prefixed with "xen_" to avoid conflicts with OS native primatives. Define Xen memory barriers in terms of the native FreeBSD primatives.
Sponsored by: Spectra Logic Corporation Reviewed by: Roger Pau Monné Tested by: Roger Pau Monné Obtained from: Roger Pau Monné (bug fixes)
|
249588 |
17-Apr-2013 |
gabor |
- Correct spelling in comments
Submitted by: Christoph Mallon <christoph.mallon@gmx.de> (via private mail)
|
223758 |
04-Jul-2011 |
attilio |
With retirement of cpumask_t and usage of cpuset_t for representing a mask of CPUs, pc_other_cpus and pc_cpumask become highly inefficient.
Remove them and replace their usage with custom pc_cpuid magic (as, atm, pc_cpumask can be easilly represented by (1 << pc_cpuid) and pc_other_cpus by (all_cpus & ~(1 << pc_cpuid))).
This change is not targeted for MFC because of struct pcpu members removal and dependency by cpumask_t retirement.
MD review by: marcel, marius, alc Tested by: pluknet MD testing by: marcel, marius, gonzo, andreast
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222813 |
07-Jun-2011 |
attilio |
etire the cpumask_t type and replace it with cpuset_t usage.
This is intended to fix the bug where cpu mask objects are capped to 32. MAXCPU, then, can now arbitrarely bumped to whatever value. Anyway, as long as several structures in the kernel are statically allocated and sized as MAXCPU, it is suggested to keep it as low as possible for the time being.
Technical notes on this commit itself: - More functions to handle with cpuset_t objects are introduced. The most notable are cpusetobj_ffs() (which calculates a ffs(3) for a cpuset_t object), cpusetobj_strprint() (which prepares a string representing a cpuset_t object) and cpusetobj_strscan() (which creates a valid cpuset_t starting from a string representation). - pc_cpumask and pc_other_cpus are target to be removed soon. With the moving from cpumask_t to cpuset_t they are now inefficient and not really useful. Anyway, for the time being, please note that access to pcpu datas is protected by sched_pin() in order to avoid migrating the CPU while reading more than one (possible) word - Please note that size of cpuset_t objects may differ between kernel and userland. While this is not directly related to the patch itself, it is good to understand that concept and possibly use the patch as a reference on how to deal with cpuset_t objects in userland, when accessing kernland members. - KTR_CPUMASK is changed and now is represented through a string, to be set as the example reported in NOTES.
Please additively note that no MAXCPU is bumped in this patch, but private testing has been done until to MAXCPU=128 on a real 8x8x2(htt) machine (amd64).
Please note that the FreeBSD version is not yet bumped because of the upcoming pcpu changes. However, note that this patch is not targeted for MFC.
People to thank for the time spent on this patch: - sbruno, pluknet and Nicholas Esborn (nick AT desert DOT net) tested several revision of the patches and really helped in improving stability of this work. - marius fixed several bugs in the sparc64 implementation and reviewed patches related to ktr. - jeff and jhb discussed the basic approach followed. - kib and marcel made targeted review on some specific part of the patch. - marius, art, nwhitehorn and andreast reviewed MD specific part of the patch. - marius, andreast, gonzo, nwhitehorn and jceel tested MD specific implementations of the patch. - Other people have made contributions on other patches that have been already committed and have been listed separately.
Companies that should be mentioned for having participated at several degrees: - Yahoo! for having offered the machines used for testing on big count of CPUs. - The FreeBSD Foundation for having sponsored my devsummit attendance, which has been instrumental. - Sandvine for having offered offices and infrastructure during development.
(I really hope I didn't forget anyone, if it happened I apologize in advance).
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215681 |
22-Nov-2010 |
jhb |
Remove some bogus, self-referential mergeinfo.
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207736 |
07-May-2010 |
mckusick |
Merger of the quota64 project into head.
This joint work of Dag-Erling Smørgrav and myself updates the FFS quota system to support both traditional 32-bit and new 64-bit quotas (for those of you who want to put 2+Tb quotas on your users).
By default quotas are not compiled into the kernel. To include them in your kernel configuration you need to specify:
options QUOTA # Enable FFS quotas
If you are already running with the current 32-bit quotas, they should continue to work just as they have in the past. If you wish to convert to using 64-bit quotas, use `quotacheck -c 64'; if you wish to revert from 64-bit quotas back to 32-bit quotas, use `quotacheck -c 32'.
There is a new library of functions to simplify the use of the quota system, do `man quotafile' for details. If your application is currently using the quotactl(2), it is highly recommended that you convert your application to use the quotafile interface. Note that existing binaries will continue to work.
Special thanks to John Kozubik of rsync.net for getting me interested in pursuing 64-bit quota support and for funding part of my development time on this project.
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207673 |
05-May-2010 |
joel |
Switch to our preferred 2-clause BSD license.
Approved by: kmacy
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190633 |
01-Apr-2009 |
piso |
Implement an ipfw action to reassemble ip packets: reass.
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190581 |
30-Mar-2009 |
mav |
Integrate user/mav/ata branch:
Add ch_suspend/ch_resume methods for PCI controllers and implement them for AHCI. Refactor AHCI channel initialization according to it.
Fix Port Multipliers operation. It is far from perfect yet, but works now. Tested with JMicron JMB363 AHCI + SiI 3726 PMP pair. Previous version was also tested with SiI 4726 PMP.
Hardware sponsored by: Vitsch Electronics / VEHosting.nl
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189699 |
11-Mar-2009 |
dfr |
Merge in support for Xen HVM on amd64 architecture.
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189614 |
10-Mar-2009 |
dfr |
Port Xen HVM support forward from 6.x. Add support for TSO/LRO to netfront.
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188707 |
17-Feb-2009 |
dfr |
Pull in support for Xen HVM from user/dfr/xenhvm/6.
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185637 |
05-Dec-2008 |
dfr |
Major cleaning up and refactoring, including but not limited to:
* Move MI Xen headers from <machine/xen/foo.h> to <xen/foo.h> * Try to cut down the amount of times one include cross-includes another * Remove all the linux compatibiity macros in favour of an unobfuscated native FreeBSD style. * Don't multiplex error and result values using negative errno return values. * On FreeBSD, malloc(..., M_WAITOK) doesn't return NULL - simplify accordingly.
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185578 |
03-Dec-2008 |
dfr |
Use newbus to manage Xen devices.
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185386 |
28-Nov-2008 |
dfr |
Add some Xen support for amd64 - initially HVM only.
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185181 |
22-Nov-2008 |
dfr |
Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 performance in Xen's HVM mode.
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184235 |
25-Oct-2008 |
kmacy |
Merge basic SMP support from HEAD
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183962 |
16-Oct-2008 |
kmacy |
- Fix floating point handling for xen - Enable SMP
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183927 |
16-Oct-2008 |
kmacy |
- pull in xen_machdep.c from HEAD - pull in xen changes to common files - remove unused i386/xen/machdep.c
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183906 |
15-Oct-2008 |
kmacy |
Add i386 specific xen support
|