Author: kib
Date: Thu Dec 21 23:08:10 2017
New Revision: 327073
URL: https://svnweb.freebsd.org/changeset/base/327073
Log:
Fix build for LP64 arches with gcc.
gcc complaints that the comparision is always false due to the value
range, and the cast does not prevent the analysis. Split the
Author: kib
Date: Thu Dec 21 23:39:00 2017
New Revision: 327074
URL: https://svnweb.freebsd.org/changeset/base/327074
Log:
Fix mips build after introduction of MD definitions of atomic_load_64
and atomic_store_64.
The MD definitions are provided for LP64 only, while mips also uses
them
Author: kib
Date: Fri Dec 22 17:52:38 2017
New Revision: 327088
URL: https://svnweb.freebsd.org/changeset/base/327088
Log:
Update HISTORY section for the atomic(9) page.
In collaboration with:alc
Sponsored by: The FreeBSD Foundation (kib)
MFC after:1 week
Modified:
head/s
Author: kib
Date: Fri Dec 22 23:27:03 2017
New Revision: 327097
URL: https://svnweb.freebsd.org/changeset/base/327097
Log:
Remove mips MD atomic_load_64 and atomic_store_64.
The only users of the functions were db_read_bytes() and
db_write_bytes() ddb(4) interfaces. Replace the calls wit
Author: kib
Date: Sat Dec 23 21:32:50 2017
New Revision: 327118
URL: https://svnweb.freebsd.org/changeset/base/327118
Log:
Add missed AVX512VL (128 and 256 bit vector length) extension
identification bit.
Sponsored by: The FreeBSD Foundation
MFC after:3 days
Modified:
head/sys/x8
Author: kib
Date: Thu Dec 28 12:59:48 2017
New Revision: 327283
URL: https://svnweb.freebsd.org/changeset/base/327283
Log:
Complete r327264 by fixing yet another return without cleanup.
Sponsored by: The FreeBSD Foundation
MFC after:1 week
Modified:
head/usr.sbin/cpucontrol/intel.c
Author: kib
Date: Thu Dec 28 13:01:27 2017
New Revision: 327284
URL: https://svnweb.freebsd.org/changeset/base/327284
Log:
Style. Remove useless return.
Sponsored by: The FreeBSD Foundation
MFC after:1 week
Modified:
head/usr.sbin/cpucontrol/intel.c
Modified: head/usr.sbin/cpucon
Author: kib
Date: Thu Dec 28 13:16:32 2017
New Revision: 327285
URL: https://svnweb.freebsd.org/changeset/base/327285
Log:
Make kern_proc_vmmap_resident() externally accesible, and move the
vmmap_skip_res_cnt control check inside it.
Sponsored by: The FreeBSD Foundation
MFC after:1
Author: kib
Date: Thu Dec 28 13:23:13 2017
New Revision: 327286
URL: https://svnweb.freebsd.org/changeset/base/327286
Log:
Reuse kern_proc_vmmap_resident() for procfs_map resident count.
The existing algorithm in procfs_map() to calculate count of resident
pages in an entry is too primiti
On Thu, Dec 28, 2017 at 02:14:36PM +, Pedro F. Giffuni wrote:
> Author: pfg
> Date: Thu Dec 28 14:14:35 2017
> New Revision: 327287
> URL: https://svnweb.freebsd.org/changeset/base/327287
>
> Log:
> sys/i386/isa/elink*: sync with (older) NetBSD.
>
> Make it easier to identify the point
Author: kib
Date: Thu Dec 28 22:56:30 2017
New Revision: 327316
URL: https://svnweb.freebsd.org/changeset/base/327316
Log:
In vm_swapout_map_deactivate_pages(), it is enough to lock the map for read.
Reviewed by: alc, markj (as part of the larger patch)
Tested by:pho (again, as part
Author: kib
Date: Thu Dec 28 23:50:21 2017
New Revision: 327319
URL: https://svnweb.freebsd.org/changeset/base/327319
Log:
Clean up the comment.
Reviewed by: alc, markj
Sponsored by: The FreeBSD Foundation
MFC after:1 week
Differential revision:https://reviews.freebsd.org
Author: kib
Date: Fri Dec 29 19:05:07 2017
New Revision: 327354
URL: https://svnweb.freebsd.org/changeset/base/327354
Log:
Style.
Reviewed by: alc
Sponsored by: The FreeBSD Foundation
MFC after:1 week
Differential revision:https://reviews.freebsd.org/D13678
Modified:
h
Author: kib
Date: Fri Dec 29 20:33:56 2017
New Revision: 327359
URL: https://svnweb.freebsd.org/changeset/base/327359
Log:
Do not lock vm map in swapout_procs().
Neither swapout_procs() nor swapout() access the map. Since the
process' vmspace is referenced only to obtain the pointer to t
Author: kib
Date: Sat Dec 30 11:33:04 2017
New Revision: 327380
URL: https://svnweb.freebsd.org/changeset/base/327380
Log:
Move i386/isa/npx.c to i386i386/npx.c.
The i386 FPU (AKA npx) code does not depend on ISA devices at all,
after the support for IRQ13 FPU exceptions was removed. Put
Author: kib
Date: Sat Dec 30 11:42:49 2017
New Revision: 327381
URL: https://svnweb.freebsd.org/changeset/base/327381
Log:
Move i386/isa/elink.[hc] to dev/ep.
The ep(4) driver is the only consumer of the two functions from
elink.c. I removed the standalone module as well, and most likely
On Sat, Dec 30, 2017 at 04:02:39PM -0500, Pedro Giffuni wrote:
> Hi;
>
> On 30/12/2017 06:42, Konstantin Belousov wrote:
> > Author: kib
> > Date: Sat Dec 30 11:42:49 2017
> > New Revision: 327381
> > URL: https://svnweb.freebsd.org/changeset/base/327381
> &
Author: kib
Date: Sun Dec 31 17:07:59 2017
New Revision: 327437
URL: https://svnweb.freebsd.org/changeset/base/327437
Log:
Remove MP SAFE marks and stray register name in comments.
Sponsored by: The FreeBSD Foundation
MFC after:3 days
Modified:
head/sys/amd64/amd64/support.S
Modif
Author: kib
Date: Mon Jan 1 19:27:33 2018
New Revision: 327468
URL: https://svnweb.freebsd.org/changeset/base/327468
Log:
Do not let vm_daemon run unbounded.
On a load where single anonymous object consumes almost all memory on
the large system, swapout code executes the iteration over t
Author: kib
Date: Mon Jan 1 20:47:03 2018
New Revision: 327472
URL: https://svnweb.freebsd.org/changeset/base/327472
Log:
Avoid re-check of usermode condition.
It does not change anything in the behavior of trap_pfault(), while
eliminating obfuscation of jumping to the code which checks
Author: kib
Date: Mon Jan 1 19:34:19 2018
New Revision: 327469
URL: https://svnweb.freebsd.org/changeset/base/327469
Log:
Add CR4.SMAP control bit.
Sponsored by: The FreeBSD Foundation
MFC after:3 days
Modified:
head/sys/x86/include/specialreg.h
Modified: head/sys/x86/include/spe
Author: kib
Date: Wed Jan 3 11:23:47 2018
New Revision: 327517
URL: https://svnweb.freebsd.org/changeset/base/327517
Log:
Use the new SDM-approved way to serialize x2APIC MSR writes.
SDM editions 64 and below stated that it is enough to use MFENCe or
LFENCE to serialize x2APIC register w
Author: kib
Date: Thu Jan 4 18:14:58 2018
New Revision: 327555
URL: https://svnweb.freebsd.org/changeset/base/327555
Log:
Restructure swapout tests after vm map locking was removed.
Consolidate the regions covered by the process lock.
Combine similar conditions tests into one, e.g. all p
Author: kib
Date: Fri Jan 5 21:06:19 2018
New Revision: 327597
URL: https://svnweb.freebsd.org/changeset/base/327597
Log:
Make it possible to re-evaluate cpu_features.
Add cpuctl(4) ioctl CPUCTL_EVAL_CPU_FEATURES which forces re-read of
cpu_features, cpu_features2, cpu_stdext_features, a
Author: kib
Date: Sat Jan 6 16:29:00 2018
New Revision: 327625
URL: https://svnweb.freebsd.org/changeset/base/327625
Log:
Document kern.smp.disabled tunable.
Sponsored by: The FreeBSD Foundation
MFC after:3 days
Modified:
head/share/man/man4/smp.4
Modified: head/share/man/man4/sm
On Sun, Jan 07, 2018 at 01:35:15PM +, Kristof Provost wrote:
> Author: kp
> Date: Sun Jan 7 13:35:15 2018
> New Revision: 327675
> URL: https://svnweb.freebsd.org/changeset/base/327675
>
> Log:
> pf: Avoid integer overflow issues by using mallocarray() iso. malloc()
>
> pfioctl() handl
Author: kib
Date: Tue Jan 9 10:33:11 2018
New Revision: 327721
URL: https://svnweb.freebsd.org/changeset/base/327721
Log:
Postpone the disassotiation of the background write buffer with devvp
so that buf_complete() sees fully constructed buffer.
This is a NOP right now, but will be neede
Author: kib
Date: Tue Jan 9 10:44:17 2018
New Revision: 327722
URL: https://svnweb.freebsd.org/changeset/base/327722
Log:
When handling write completion, take SU lock around calls to
handle_written_XXX() in case of processing the buffer with an error.
Tested by:pho (as part of the bi
Author: kib
Date: Tue Jan 9 10:51:44 2018
New Revision: 327723
URL: https://svnweb.freebsd.org/changeset/base/327723
Log:
Generalize the fix from r322757 and apply it to several more places.
The code accesses bp->b_dep without owning the ufs mount softdep lock,
which makes it possible fo
Author: kib
Date: Tue Jan 9 16:28:45 2018
New Revision: 327730
URL: https://svnweb.freebsd.org/changeset/base/327730
Log:
Fix year.
Noted by: oshogbo
Sponsored by: The FreeBSD Foundation
MFC after:3 days
Modified:
head/share/man/man4/smp.4
Modified: head/share/man/man4/smp.
Author: kib
Date: Thu Jan 11 12:07:24 2018
New Revision: 327816
URL: https://svnweb.freebsd.org/changeset/base/327816
Log:
Update comment explaining the check, to reality.
Discussed with: jhb
Sponsored by: The FreeBSD Foundation
MFC after:3 days
Modified:
head/sys/amd64/amd
Author: kib
Date: Thu Jan 11 12:28:08 2018
New Revision: 327817
URL: https://svnweb.freebsd.org/changeset/base/327817
Log:
Rename COMMON_TSS_RSP0 to TSS_RSP0.
The symbol is just an offset in the hardware TSS structure, it is not
limited to the common_tss instance.
Sponsored by: The F
Author: kib
Date: Thu Jan 11 12:40:43 2018
New Revision: 327818
URL: https://svnweb.freebsd.org/changeset/base/327818
Log:
Move the hardware setup for fast syscalls into a common function.
Discussed with: jhb
Sponsored by: The FreeBSD Foundation
MFC after:1 week
Modified:
h
Author: kib
Date: Thu Jan 11 12:54:33 2018
New Revision: 327819
URL: https://svnweb.freebsd.org/changeset/base/327819
Log:
Do not clear %RFLAGS.DF on fast syscall entry.
Hardware already did it for us due to the mask loaded into the
MSR_SF_MASK msr register.
Reviewed by: jhb
Spons
Author: kib
Date: Thu Jan 11 13:22:13 2018
New Revision: 327820
URL: https://svnweb.freebsd.org/changeset/base/327820
Log:
Remove redundand CLD instructions.
We already clear %RFLAGS.DF on the kernel entry due to the compiler's
ABI requirements.
Suggested by: jhb
Sponsored by: The
Author: kib
Date: Thu Jan 11 13:37:45 2018
New Revision: 327821
URL: https://svnweb.freebsd.org/changeset/base/327821
Log:
Softlink inodes can own buffers with dependencies.
At least, softlinks longer than 120 bytes have data fragments.
Submitted by: mckusick
MFC after:5 days
Mo
Author: kib
Date: Thu Jan 11 13:57:30 2018
New Revision: 327822
URL: https://svnweb.freebsd.org/changeset/base/327822
Log:
Skip IRELATIVE relocations when loader processes ELF files.
ifuncs can be only called in the (early boot) kernel environment, so
postpone resolving until early stage
Author: kib
Date: Thu Jan 11 16:50:03 2018
New Revision: 327834
URL: https://svnweb.freebsd.org/changeset/base/327834
Log:
Fix grammar.
Submitted by: alc
MFC after:3 days
Modified:
head/sys/amd64/amd64/support.S
head/sys/i386/i386/support.s
Modified: head/sys/amd64/amd64/support
Author: kib
Date: Sat Jan 13 11:59:49 2018
New Revision: 327917
URL: https://svnweb.freebsd.org/changeset/base/327917
Log:
Add sysctl debug.kdb.stack_overflow to conveniently test kernel
handling of the kstack overflow.
Sponsored by: The FreeBSD Foundation
MFC after:1 week
Modified
On Sat, Jan 13, 2018 at 11:14:53PM +, Nathan Whitehorn wrote:
> +/*
> + * We (usually) have a direct map of all physical memory. All
> + * uses of this macro must be gated by a check on hw_direct_map!
> + * The location of the direct map may not be 1:1 in future, so use
> + * of the macro is re
On Sat, Jan 13, 2018 at 08:31:40PM -0800, Nathan Whitehorn wrote:
>
>
> On 01/13/18 15:28, Nathan Whitehorn wrote:
> >
> >
> > On 01/13/18 15:24, Konstantin Belousov wrote:
> >> On Sat, Jan 13, 2018 at 11:14:53PM +, Nathan Whitehorn wrote:
> >>&
Author: kib
Date: Sun Jan 14 12:33:05 2018
New Revision: 327963
URL: https://svnweb.freebsd.org/changeset/base/327963
Log:
When re-evaluating cpu_features, also re-print CPU identification.
Sponsored by: The FreeBSD Foundation
MFC after:1 week
Modified:
head/sys/dev/cpuctl/cpuctl.c
Author: kib
Date: Sun Jan 14 12:36:23 2018
New Revision: 327964
URL: https://svnweb.freebsd.org/changeset/base/327964
Log:
Enumerate and print Intel CPU features for Speculative Execution Side
Channel Mitigations.
The definitions are taken from the document 336996-001.
Sponsored by:
Author: kib
Date: Sun Jan 14 12:39:50 2018
New Revision: 327965
URL: https://svnweb.freebsd.org/changeset/base/327965
Log:
Add STAC and CLAC instructions wrappers.
Reviewed by: jhb
Sponsored by: The FreeBSD Foundation
MFC after:1 week
Differential revision:https://reviews
On Sun, Jan 14, 2018 at 08:06:19AM -0800, Nathan Whitehorn wrote:
>
>
> On 01/14/18 00:30, Konstantin Belousov wrote:
> > On Sat, Jan 13, 2018 at 08:31:40PM -0800, Nathan Whitehorn wrote:
> >>
> >> On 01/13/18 15:28, Nathan Whitehorn wrote:
> >>>
On Sun, Jan 14, 2018 at 09:30:53AM -0800, Nathan Whitehorn wrote:
> The immediate consequence of that is that no MI code that knows about
> direct maps can possibly take advantage of the direct map on this
> platform. Do we really want that to save some conditional logic that
> would get optimiz
On Sun, Jan 14, 2018 at 03:46:38PM -0800, Nathan Whitehorn wrote:
>
>
> On 01/14/18 15:42, Nathan Whitehorn wrote:
> >
> >
> > On 01/14/18 09:57, Nathan Whitehorn wrote:
> >>
> >>
> >> On 01/14/18 09:52, Konstantin Belousov wrote:
> >&
On Mon, Jan 15, 2018 at 11:20:00AM +, Andriy Gapon wrote:
> Author: avg
> Date: Mon Jan 15 11:20:00 2018
> New Revision: 327996
> URL: https://svnweb.freebsd.org/changeset/base/327996
>
> Log:
> geom_disk / scsi_da: deny opening write-protected disks for writing
>
> Ths change consists
On Mon, Jan 15, 2018 at 07:33:01AM -0800, Nathan Whitehorn wrote:
>
>
> On 01/15/18 03:18, Konstantin Belousov wrote:
> > On Sun, Jan 14, 2018 at 03:46:38PM -0800, Nathan Whitehorn wrote:
> >>
> >> On 01/14/18 15:42, Nathan Whitehorn wrote:
> >>>
&g
On Mon, Jan 15, 2018 at 09:32:56AM -0800, Nathan Whitehorn wrote:
> That seems fine to me. I don't think a less-clumsy way that does not
> involve extra indirection is possible. The PHYS_TO_DMAP() returning NULL
> is about the best thing I can come up with from a clumsiness standpoint
> since pl
On Mon, Jan 15, 2018 at 03:20:49PM -0800, Nathan Whitehorn wrote:
> Fair enough. Here's a patch with a new flag (DIRECT_MAP_AVAILABLE). I've
> also retooled the sfbuf code to use this rather than its own flags that
> mean the same things. The sparc64 part of the patch is untested.
> -Nathan
> In
On Tue, Jan 16, 2018 at 09:30:29PM -0800, Nathan Whitehorn wrote:
>
>
> On 01/16/18 11:32, Marius Strobl wrote:
> > On Mon, Jan 15, 2018 at 03:20:49PM -0800, Nathan Whitehorn wrote:
> >>
> >> On 01/15/18 09:53, Konstantin Belousov wrote:
> >>> On
Author: kib
Date: Wed Jan 17 11:21:03 2018
New Revision: 328082
URL: https://svnweb.freebsd.org/changeset/base/328082
Log:
Amd64 user_ldt_deref() is not used outside sys_machdep.c. Mark it as
static.
Sponsored by: The FreeBSD Foundation
MFC after:1 week
Modified:
head/sys/amd64/
+ * All rights reserved.
*
+ * Portions of this software were developed by
+ * Konstantin Belousov under sponsorship from
+ * the FreeBSD Foundation.
+ *
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are
Author: kib
Date: Thu Jan 18 11:21:03 2018
New Revision: 328120
URL: https://svnweb.freebsd.org/changeset/base/328120
Log:
Fix compilation with gcc.
etext is already declared in machine/cpu.h, move kernphys declaration
there too.
Based on the patch by:bde
MFC after:13 d
Author: kib
Date: Thu Jan 18 11:01:41 2018
New Revision: 328116
URL: https://svnweb.freebsd.org/changeset/base/328116
Log:
Remove the 'last' argument from the pmap_pti_free_page().
It is in fact unused.
Noted and reviewed by:markj
Sponsored by: The FreeBSD Foundation
MFC af
Author: kib
Date: Thu Jan 18 11:19:58 2018
New Revision: 328119
URL: https://svnweb.freebsd.org/changeset/base/328119
Log:
Fix compilation with gas.
Submitted by: bde
MFC after:13 days
Modified:
head/sys/amd64/include/asmacros.h
Modified: head/sys/amd64/include/asmacros.h
On Wed, Jan 17, 2018 at 07:38:03PM -0800, Conrad Meyer wrote:
> On Wed, Jan 17, 2018 at 3:44 AM, Konstantin Belousov wrote:
> > Author: kib
> > Date: Wed Jan 17 11:44:21 2018
> > New Revision: 328083
> > URL: https://svnweb.freebsd.org/changeset/base/328083
>
Author: kib
Date: Thu Jan 18 15:15:35 2018
New Revision: 328128
URL: https://svnweb.freebsd.org/changeset/base/328128
Log:
Move the kernphys declaration to machine/md_var.h.
Apparently machinde/cpu.h is supposed to contain MD implementations of
MI interfaces. Also, remove kernphys declar
On Thu, Jan 18, 2018 at 07:24:11AM -0800, Nathan Whitehorn wrote:
>
>
> On 01/17/18 01:44, Konstantin Belousov wrote:
> > On Tue, Jan 16, 2018 at 09:30:29PM -0800, Nathan Whitehorn wrote:
> >>
> >> On 01/16/18 11:32, Marius Strobl wrote:
> >>> On
Author: kib
Date: Fri Jan 19 22:10:29 2018
New Revision: 328177
URL: https://svnweb.freebsd.org/changeset/base/328177
Log:
PTI: Trap if we returned to userspace with kernel (full) page table
still active.
Map userspace portion of VA in the PTI kernel-mode page table as
non-executable. T
On Sat, Jan 20, 2018 at 07:57:55PM +1100, Bruce Evans wrote:
> The not-unused x86 arch is one that does this. IIRC, some history of this
> is:
>
> - on the 8086, the shift count was taken mod 32. 16 bits was enough for
>anyone, and shifting left or right by 16 through 31 (but not by 32)
>
Author: kib
Date: Sat Jan 20 12:19:02 2018
New Revision: 328192
URL: https://svnweb.freebsd.org/changeset/base/328192
Log:
Assign map->header values to avoid boundary checks.
In several places, entry start and end field are checked, after
excluding the possibility that the entry is map->h
Author: kib
Date: Sat Jan 20 17:46:09 2018
New Revision: 328202
URL: https://svnweb.freebsd.org/changeset/base/328202
Log:
Use predefined symbol for the CR3.PCID mask.
Sponsored by: The FreeBSD Foundation
MFC after:11 days
Modified:
head/sys/amd64/amd64/trap.c
Modified: head/sys/a
Author: kib
Date: Sat Jan 20 18:05:14 2018
New Revision: 328205
URL: https://svnweb.freebsd.org/changeset/base/328205
Log:
Use correct symbol name in r328202.
Sponsored by: The FreeBSD Foundation
MFC after:11 days
Modified:
head/sys/amd64/amd64/trap.c
Modified: head/sys/amd64/amd6
On Sat, Jan 20, 2018 at 06:50:09PM +0100, O. Hartmann wrote:
> This commit breaks buildkernel:
>
>
> [...]
> /usr/src/sys/amd64/amd64/trap.c:710:33: error: use of undeclared identifier
> 'PMAP_PCID_MASK' (curpcb->pcb_saved_ucr3 & ~PMAP_PCID_MASK)==
This should be fixed by r328205.
__
On Mon, Jan 22, 2018 at 02:44:41AM +, Kyle Evans wrote:
> Author: kevans
> Date: Mon Jan 22 02:44:41 2018
> New Revision: 328240
> URL: https://svnweb.freebsd.org/changeset/base/328240
>
> Log:
> Add libregex, connect it to the build
>
> libregex is a regex(3) implementation intended to
On Mon, Jan 22, 2018 at 08:05:30AM -0600, Kyle Evans wrote:
> On Mon, Jan 22, 2018 at 4:26 AM, Konstantin Belousov
> wrote:
> > On Mon, Jan 22, 2018 at 02:44:41AM +, Kyle Evans wrote:
> >> Author: kevans
> >> Date: Mon Jan 22 02:44:41 2018
> >&g
On Mon, Jan 22, 2018 at 11:43:34AM -0600, Kyle Evans wrote:
> On Mon, Jan 22, 2018 at 9:53 AM, Konstantin Belousov
> wrote:
> > On Mon, Jan 22, 2018 at 08:05:30AM -0600, Kyle Evans wrote:
> >> On Mon, Jan 22, 2018 at 4:26 AM, Konstantin Belousov
> >> wrote:
> &
Author: kib
Date: Mon Jan 22 20:49:17 2018
New Revision: 328264
URL: https://svnweb.freebsd.org/changeset/base/328264
Log:
Fix compat32 for sysctl net.PF_ROUTE...NET_RT_IFLISTL.
Route messages are aligned to the host long type alignment, which
breaks 32bit.
Reported and tested by:
On Wed, Jan 24, 2018 at 11:05:24AM -0700, Warner Losh wrote:
> Let's start with his point about u_long vs size_t causing problems:
>
> void*malloc(unsigned long size, struct malloc_type *type, int flags)
> vs
> void*mallocarray(size_t nmemb, size_t size, struct malloc_type *type,
>
> Sinc
Author: kib
Date: Sat Jan 27 11:33:21 2018
New Revision: 328468
URL: https://svnweb.freebsd.org/changeset/base/328468
Log:
Fix native_lapic_ipi_alloc().
When PTI is enabled, empty IDT slots point to rsvd_pti.
Reported by: Dexuan-BSD Cui
Sponsored by: The FreeBSD Foundation
MFC af
On Sat, Jan 27, 2018 at 12:56:47AM -0800, Dexuan-BSD Cui wrote:
> Hi,
> Today I found the KPTI patch broke FreeBSD VM running on Hyper-V: the VM
> can't boot due to:
>
> vmbus0: cannot find free IDT vector
>
> This is the related snippet:
>
> dev/hyperv/vmbus/vmbus.c: vmbus_intr_setup() -> lapic
Author: kib
Date: Sat Jan 27 11:49:37 2018
New Revision: 328470
URL: https://svnweb.freebsd.org/changeset/base/328470
Log:
Use PCID to optimize PTI.
Use PCID to avoid complete TLB shootdown when switching between user
and kernel mode with PTI enabled.
I use the model close to what I
On Sat, Jan 27, 2018 at 03:33:52PM +, Pedro F. Giffuni wrote:
> Author: pfg
> Date: Sat Jan 27 15:33:52 2018
> New Revision: 328479
> URL: https://svnweb.freebsd.org/changeset/base/328479
>
> Log:
> {ext2|ufs}_readdir: Set limit on valid ncookies values.
>
> Sanitize the values that wil
On Wed, Mar 21, 2018 at 09:42:26AM -0600, Warner Losh wrote:
> On Wed, Mar 21, 2018 at 9:37 AM, Conrad Meyer wrote:
>
> > On Wed, Mar 21, 2018 at 8:23 AM, Konstantin Belousov
> > wrote:
> > > On Wed, Mar 21, 2018 at 08:03:16AM -0700, Conrad Meyer wrote:
> > &
On Thu, Mar 22, 2018 at 04:53:22AM +1100, Bruce Evans wrote:
> Serial console drivers with fast interrupt handlers have much more
> broken locking for ddb special keys. It is invalid to either drop locks
> or call the "any" function from a fast interrupt handler, but buggy
> serial console drivers
On Thu, Mar 22, 2018 at 05:50:57PM +1100, Bruce Evans wrote:
> On Wed, 21 Mar 2018, Warner Losh wrote:
>
> > On Wed, Mar 21, 2018 at 2:27 PM, Konstantin Belousov
> > wrote:
> >> ...
> >> Are you saying that fast interrupt handlers call shutdown_nice() ? This
On Fri, Mar 23, 2018 at 01:21:43AM +1100, Bruce Evans wrote:
> I don't like having a whole task for this. The whole thing is just a
> hack to work around some the upper layers of the tty driver and some
> lower layers not having any input [escape] sequences to control the
> kernel. Only the sysco
Author: kib
Date: Thu Mar 22 20:44:27 2018
New Revision: 331374
URL: https://svnweb.freebsd.org/changeset/base/331374
Log:
Fixes for ptrace(PT_GETXSTATE_INFO) related to the padding in struct
ptrace_xstate_info).
struct ptrace_xstate_info has 64bit member but ends up with 32bit
one. As
Author: kib
Date: Thu Mar 22 20:47:25 2018
New Revision: 331375
URL: https://svnweb.freebsd.org/changeset/base/331375
Log:
Do not send signals to init directly from shutdown_nice(9), do it from
the task context.
shutdown_nice() is used from the fast interrupt handlers, mostly for
consol
Author: kib
Date: Fri Mar 23 15:44:31 2018
New Revision: 331431
URL: https://svnweb.freebsd.org/changeset/base/331431
Log:
Update comment to match current field names.
Sponsored by: The FreeBSD Foundation
MFC after:3 days
Modified:
head/sys/i386/i386/vm86.c
Modified: head/sys/i386
Author: kib
Date: Fri Mar 23 15:46:53 2018
New Revision: 331432
URL: https://svnweb.freebsd.org/changeset/base/331432
Log:
There is no need to disable interrupts around npxsave call.
i386 was changed to only require critical section around the thread
FPU state manipulations, and vm86_bios
Author: kib
Date: Sat Mar 24 12:57:58 2018
New Revision: 331486
URL: https://svnweb.freebsd.org/changeset/base/331486
Log:
Improve the lcall $7,$0 syscall emulation on amd64.
Current code, which copies the potential syscall arguments into the
current frame, puts an arbitrary limit on the
Author: kib
Date: Sat Mar 24 13:13:52 2018
New Revision: 331487
URL: https://svnweb.freebsd.org/changeset/base/331487
Log:
In vn_io_fault1(), reduce the scope where pagefaults are disabled.
Most important for the future use, do not call
vm_fault_quick_hold_pages() with disabled pagefaults
Author: kib
Date: Sat Mar 24 13:48:53 2018
New Revision: 331489
URL: https://svnweb.freebsd.org/changeset/base/331489
Log:
For vm_zone_stats() sysctl handler, do not drain sbuf calling
copyout(9) while owning zone lock.
Despite old value sysctl buffer is wired, spurious faults might still
Author: kib
Date: Sat Mar 24 13:51:27 2018
New Revision: 331490
URL: https://svnweb.freebsd.org/changeset/base/331490
Log:
Account the size of the vslock-ed memory by the thread.
Assert that all such memory is unwired on return to usermode.
The count of the wired memory will be used to de
Author: kib
Date: Mon Mar 26 16:31:12 2018
New Revision: 331557
URL: https://svnweb.freebsd.org/changeset/base/331557
Log:
Allow to specify for vm_fault_quick_hold_pages() that nofault mode
should be honored.
We must not sleep or acquire any MI VM locks if TDP_NOFAULTING is
specified.
Author: kib
Date: Tue Mar 27 15:29:32 2018
New Revision: 331622
URL: https://svnweb.freebsd.org/changeset/base/331622
Log:
Allow to specify PCP on packets not belonging to any VLAN.
According to 802.1Q-2014, VLAN tagged packets with VLAN id 0 should be
considered as untagged, and only PCP
Author: kib
Date: Tue Mar 27 18:05:51 2018
New Revision: 331640
URL: https://svnweb.freebsd.org/changeset/base/331640
Log:
Fix several leaks of kernel stack data through paddings.
It is random collection of fixes for issues not yet corrected,
reported at https://tsyrklevi.ch/clang_analyze
On Wed, Mar 28, 2018 at 08:55:31AM +, Andriy Gapon wrote:
> +static __inline int
> +refcount_acquire_if_not_zero(volatile u_int *count)
What about refcount_acquire_nz()
> +static __inline int
> +refcount_release_if_not_last(volatile u_int *count)
refcount_release_nz()
_
Author: kib
Date: Fri Mar 30 10:55:31 2018
New Revision: 331760
URL: https://svnweb.freebsd.org/changeset/base/331760
Log:
Make vm_map_max/min/pmap KBI stable.
There are out of tree consumers of vm_map_min() and vm_map_max(), and
I believe there are consumers of vm_map_pmap(), although th
On Tue, Apr 03, 2018 at 06:52:39PM +, Cy Schubert wrote:
> Modified: head/lib/libc/stdio/Symbol.map
> ==
> --- head/lib/libc/stdio/Symbol.mapTue Apr 3 18:43:00 2018
> (r331935)
> +++ head/lib/libc/stdio/Sym
On Tue, Apr 03, 2018 at 11:20:10PM +0300, Konstantin Belousov wrote:
> On Tue, Apr 03, 2018 at 06:52:39PM +, Cy Schubert wrote:
> > Modified: head/lib/libc/stdio/Symbol.map
> > ==
> > --- head/lib/
On Tue, Apr 03, 2018 at 08:14:37PM +, Cy Schubert wrote:
> Author: cy
> Date: Tue Apr 3 20:14:37 2018
> New Revision: 331943
> URL: https://svnweb.freebsd.org/changeset/base/331943
>
> Log:
> Include update to stdio.h missed in r331936.
>
> In my attempt to limit the commit in r331936
On Tue, Apr 03, 2018 at 01:24:42PM -0700, Cy Schubert wrote:
> In message <20180403202010.gk1...@kib.kiev.ua>, Konstantin Belousov
> writes:
> > On Tue, Apr 03, 2018 at 06:52:39PM +, Cy Schubert wrote:
> > > Modified: hea
On Tue, Apr 03, 2018 at 08:38:25PM +, Cy Schubert wrote:
> Author: cy
> Date: Tue Apr 3 20:38:25 2018
> New Revision: 331945
> URL: https://svnweb.freebsd.org/changeset/base/331945
>
> Log:
> Correct the version number for gets_s(3).
>
> Reported by:kib@
> MFC after: 2 weeks
Author: kib
Date: Thu Apr 5 11:03:05 2018
New Revision: 332060
URL: https://svnweb.freebsd.org/changeset/base/332060
Log:
Make the INTO instruction operational in 32bit mode.
Having the IDT entry specify ring 0 DPL caused delivery of #GP instead
of #OF.
The instruction is not valid
Author: kib
Date: Thu Apr 5 11:03:21 2018
New Revision: 332061
URL: https://svnweb.freebsd.org/changeset/base/332061
Log:
Fix ERESTART for lcall $7,$0 syscalls.
The lcall trampoline enters kernel by int $0x80, which sets up invalid
length of the instruction for %rip rewind.
Reviewed
On Wed, Apr 04, 2018 at 02:37:05AM +, Warner Losh wrote:
> Author: imp
> Date: Wed Apr 4 02:37:05 2018
> New Revision: 331976
> URL: https://svnweb.freebsd.org/changeset/base/331976
>
> Log:
> Add nvme_da back.
>
> Now that it can co-exist in the kernel with nvd, add it back to the
>
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