| Commit message (Collapse) | Author | Age | Files | Lines |
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Discussion on the mailing list questioned the use of these
magic values in userspace, concluding these values are already
exported to userspace via statfs and their correct/incorrect
usage is left up to the userspace application.
- Move special fs magic number definitions to magic.h
- Add magic.h include
Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
Reviewed-by: James Morris <jmorris@namei.org>
Signed-off-by: James Morris <jmorris@namei.org>
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git://git.infradead.org/users/pcmoore/lblnet-2.6_next into next
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Add the necessary NetLabel support for the new CIPSO mapping,
CIPSO_V4_MAP_LOCAL, which allows full LSM label/context support.
Signed-off-by: Paul Moore <paul.moore@hp.com>
Reviewed-by: James Morris <jmorris@namei.org>
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This patch accomplishes three minor tasks: add a new tag type for local
labeling, rename the CIPSO_V4_MAP_STD define to CIPSO_V4_MAP_TRANS and
replace some of the CIPSO "magic numbers" with constants from the header
file. The first change allows CIPSO to support full LSM labels/contexts,
not just MLS attributes. The second change brings the mapping names inline
with what userspace is using, compatibility is preserved since we don't
actually change the value. The last change is to aid readability and help
prevent mistakes.
Signed-off-by: Paul Moore <paul.moore@hp.com>
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full contexts
This patch provides support for including the LSM's secid in addition to
the LSM's MLS information in the NetLabel security attributes structure.
Signed-off-by: Paul Moore <paul.moore@hp.com>
Acked-by: James Morris <jmorris@namei.org>
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Previous work enabled the use of address based NetLabel selectors, which
while highly useful, brought the potential for additional per-packet overhead
when used. This patch attempts to mitigate some of that overhead by caching
the NetLabel security attribute struct within the SELinux socket security
structure. This should help eliminate the need to recreate the NetLabel
secattr structure for each packet resulting in less overhead.
Signed-off-by: Paul Moore <paul.moore@hp.com>
Acked-by: James Morris <jmorris@namei.org>
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Previous work enabled the use of address based NetLabel selectors, which while
highly useful, brought the potential for additional per-packet overhead when
used. This patch attempts to solve that by applying NetLabel socket labels
when sockets are connect()'d. This should alleviate the per-packet NetLabel
labeling for all connected sockets (yes, it even works for connected DGRAM
sockets).
Signed-off-by: Paul Moore <paul.moore@hp.com>
Reviewed-by: James Morris <jmorris@namei.org>
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This patch builds upon the new NetLabel address selector functionality by
providing the NetLabel KAPI and CIPSO engine support needed to enable the
new packet-based labeling. The only new addition to the NetLabel KAPI at
this point is shown below:
* int netlbl_skbuff_setattr(skb, family, secattr)
... and is designed to be called from a Netfilter hook after the packet's
IP header has been populated such as in the FORWARD or LOCAL_OUT hooks.
This patch also provides the necessary SELinux hooks to support this new
functionality. Smack support is not currently included due to uncertainty
regarding the permissions needed to expand the Smack network access controls.
Signed-off-by: Paul Moore <paul.moore@hp.com>
Reviewed-by: James Morris <jmorris@namei.org>
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This patch extends the NetLabel traffic labeling capabilities to individual
packets based not only on the LSM domain but the by the destination address
as well. The changes here only affect the core NetLabel infrastructre,
changes to the NetLabel KAPI and individial protocol engines are also
required but are split out into a different patch to ease review.
Signed-off-by: Paul Moore <paul.moore@hp.com>
Reviewed-by: James Morris <jmorris@namei.org>
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Create an ordered IP address linked list mechanism similar to the core
kernel's linked list construct. The idea behind this list functionality
is to create an extensibile linked list ordered by IP address mask to
ease the matching of network addresses. The linked list is ordered with
larger address masks at the front of the list and shorter address masks
at the end to facilitate overriding network entries with individual host
or subnet entries.
Signed-off-by: Paul Moore <paul.moore@hp.com>
Reviewed-by: James Morris <jmorris@namei.org>
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NetLabel has always had a list of backpointers in the CIPSO DOI definition
structure which pointed to the NetLabel LSM domain mapping structures which
referenced the CIPSO DOI struct. The rationale for this was that when an
administrator removed a CIPSO DOI from the system all of the associated
NetLabel LSM domain mappings should be removed as well; a list of
backpointers made this a simple operation.
Unfortunately, while the backpointers did make the removal easier they were
a bit of a mess from an implementation point of view which was making
further development difficult. Since the removal of a CIPSO DOI is a
realtively rare event it seems to make sense to remove this backpointer
list as the optimization was hurting us more then it was helping. However,
we still need to be able to track when a CIPSO DOI definition is being used
so replace the backpointer list with a reference count. In order to
preserve the current functionality of removing the associated LSM domain
mappings when a CIPSO DOI is removed we walk the LSM domain mapping table,
removing the relevant entries.
Signed-off-by: Paul Moore <paul.moore@hp.com>
Reviewed-by: James Morris <jmorris@namei.org>
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Smack needs to call netlbl_skbuff_err() to let NetLabel do the necessary
protocol specific error handling.
Signed-off-by: Paul Moore <paul.moore@hp.com>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
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At some point I think I messed up and dropped the calls to netlbl_skbuff_err()
which are necessary for CIPSO to send error notifications to remote systems.
This patch re-introduces the error handling calls into the SELinux code.
Signed-off-by: Paul Moore <paul.moore@hp.com>
Acked-by: James Morris <jmorris@namei.org>
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Currently when SELinux fails to allocate memory in
security_netlbl_sid_to_secattr() the NetLabel LSM domain field is set to
NULL which triggers the default NetLabel LSM domain mapping which may not
always be the desired mapping. This patch fixes this by returning an error
when the kernel is unable to allocate memory. This could result in more
failures on a system with heavy memory pressure but it is the "correct"
thing to do.
Signed-off-by: Paul Moore <paul.moore@hp.com>
Acked-by: James Morris <jmorris@namei.org>
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It turns out that checking to see if skb->sk is NULL is not a very good
indicator of a forwarded packet as some locally generated packets also have
skb->sk set to NULL. Fix this by not only checking the skb->sk field but also
the IP[6]CB(skb)->flags field for the IP[6]SKB_FORWARDED flag. While we are
at it, we are calling selinux_parse_skb() much earlier than we really should
resulting in potentially wasted cycles parsing packets for information we
might no use; so shuffle the code around a bit to fix this.
Signed-off-by: Paul Moore <paul.moore@hp.com>
Acked-by: James Morris <jmorris@namei.org>
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After some discussions with the Smack folks, well just Casey, I now have a
better idea of what Smack wants out of NetLabel in the future so I think it
is now safe to do some API "pruning". If another LSM comes along that
needs this functionality we can always add it back in, but I don't see any
LSMs on the horizon which might make use of these functions.
Thanks to Rami Rosen who suggested removing netlbl_cfg_cipsov4_del() back
in February 2008.
Signed-off-by: Paul Moore <paul.moore@hp.com>
Reviewed-by: James Morris <jmorris@namei.org>
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We did the right thing in a few cases but there were several areas where we
determined a packet's address family based on the socket's address family which
is not the right thing to do since we can get IPv4 packets on IPv6 sockets.
This patch fixes these problems by either taking the address family directly
from the packet.
Signed-off-by: Paul Moore <paul.moore@hp.com>
Acked-by: James Morris <jmorris@namei.org>
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We were doing a lot of extra work in selinux_netlbl_sock_graft() what wasn't
necessary so this patch removes that code. It also removes the redundant
second argument to selinux_netlbl_sock_setsid() which allows us to simplify a
few other functions.
Signed-off-by: Paul Moore <paul.moore@hp.com>
Acked-by: James Morris <jmorris@namei.org>
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Fix a few sparse warnings. One dealt with a RCU lock being held on error,
another dealt with an improper type caused by a signed/unsigned mixup while
the rest appeared to be caused by using rcu_dereference() in a
list_for_each_entry_rcu() call. The latter probably isn't a big deal, but
I derive a certain pleasure from knowing that the net/netlabel is nice and
clean.
Thanks to James Morris for pointing out the issues and demonstrating how
to run sparse.
Signed-off-by: Paul Moore <paul.moore@hp.com>
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flushing the work queue in order to avoid a job being submitted after the
chip had been released.
Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: "Serge E. Hallyn" <serue@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Morris <jmorris@namei.org>
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#32: FILE: drivers/char/tpm/tpm.c:1148:
+^I ^Ichip->vendor.release(chip->dev);$
total: 1 errors, 0 warnings, 86 lines checked
./patches/tpm-addition-of-pnp_remove.patch has style problems, please review. If any of these errors
are false positives report them to the maintainer, see
CHECKPATCH in MAINTAINERS.
Please run checkpatch prior to sending patches
Cc: "Serge E. Hallyn" <serue@us.ibm.com>
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Mimi Zohar <zohar@linux.vnet.ibm.com>
Cc: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Morris <jmorris@namei.org>
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devices, so we implemented the .remove function for pnp ones. Since it's
code is very similar to the one inside tpm_dev_release, we've created a
helper function tpm_dev_vendor_release, which is called by both.
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
Cc: "Serge E. Hallyn" <serue@us.ibm.com>
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Morris <jmorris@namei.org>
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Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
Acked-by: Serge E. Hallyn <serue@us.ibm.com>
Cc: "Paul E. McKenney" <paulmck@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Morris <jmorris@namei.org>
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Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
Cc: "Serge E. Hallyn" <serue@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Morris <jmorris@namei.org>
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misc-char-dev-BKL-pushdown.patch, as they are not needed.
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
Cc: "Serge E. Hallyn" <serue@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Morris <jmorris@namei.org>
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* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
[CIFS] cifs: remove pointless lock and unlock of GlobalMid_Lock in header_assemble
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header_assemble
We lock GlobalMid_Lock in header_assemble and then immediately unlock it
again without doing anything. Not sure what this was intended to do, but
remove it.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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It needs the WM97xx touchscreen driver to be compiled in, not as a
module. And it cannot itself be a module, due to some unfortunate
interactions with platform data.
Reported-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
This merges in:
x86/build, x86/microcode, x86/spinlocks, x86/memory-corruption-check,
x86/early-printk, x86/xsave, x86/quirks, x86/setup, x86/signal,
core/signal, x86/urgent, x86/xen
* 'x86-core-v2-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (142 commits)
x86: make processor type select depend on CONFIG_EMBEDDED
x86: extend processor type select help text
x86, amd-iommu: propagate PCI device enabling error
warnings: fix arch/x86/kernel/io_apic_64.c
warnings: fix arch/x86/kernel/early_printk.c
x86, fpu: check __clear_user() return value
x86: memory corruption check - cleanup
x86: ioperm user_regset
xen: do not reserve 2 pages of padding between hypervisor and fixmap.
xen: use spin_lock_nest_lock when pinning a pagetable
x86: xsave: set FP, SSE bits in the xsave header in the user sigcontext
x86: xsave: fix error condition in save_i387_xstate()
x86: SB450: deprioritize DMI quirks
x86: SB450: skip IRQ0 override if it is not routed to INT2 of IOAPIC
x86: replace a magic number with a named constant in the VESA boot code
x86 setup: remove IMAGE_OFFSET
x86 setup: remove DEF_INITSEG and DEF_SETUPSEG
Revert "x86: fix ghost EDD devices in /sys again"
x86 setup: fix ghost entries under /sys/firmware/edd take 3
x86: signal: remove indent in restore_sigcontext()
...
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'x86/memory-corruption-check', 'x86/early-printk', 'x86/xsave', 'x86/ptrace-v2', 'x86/quirks', 'x86/setup', 'x86/spinlocks' and 'x86/signal' into x86/core-v2
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Replace a magic number with a named constant in the VESA boot code.
Signed-off-by: Michal Januszewski <spock@gentoo.org>
Cc: linux-fbdev-devel@lists.sourceforge.net
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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After commit 968de4f ("i386: Relocatable kernel support") IMAGE_OFFSET wasn't
actually used anymore in the (current) X86 build system. Now remove its last
traces.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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Since v.2.6.23 DEF_INITSEG and DEF_SETUPSEG are unused. Commit c397368
("Remove old i386 setup code") dropped their usage for i386. They did not
return in the x86 tree. (Something similar must have happened for x86_64.)
Remove these.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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This reverts commit 464f04c9e9b3b1c4f5ffb89c51d8ba2a2034c846.
Obsoleted by commit 6cdcdb99cf7c2e1835fc5b471864d21161c3e679.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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Some BIOSes do not indicate error when trying to read from non-
existing device. Zero buffer before reading and check that we
possibly have valid MBR by looking for MBR magic.
This was fixed in different way for edd.S in
http://marc.info/?l=linux-kernel&m=114087765422490&w=2, but lost
again when edd.S was rewritten in C.
Signed-off-by: Andrey Borzenkov < arvidjaar@mail.ru>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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> This is regression but old enough. Apparently I had for whatever reasons
> EDD turned off till recently. This is 2.6.27-rc5 just in case.
>
> In 2006 I fixed ghost devices due to buggy BIOS:
>
> http://marc.info/?l=linux-kernel&m=114087765422490&w=2
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> Later edd.S has been rewritten in C, and apparently this patch has been
> lost:
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> {pts/1}% ls /sys/firmware/edd
> int13_dev80/ int13_dev84/ int13_dev88/ int13_dev8c/
> int13_dev81/ int13_dev85/ int13_dev89/ int13_dev8d/
> int13_dev82/ int13_dev86/ int13_dev8a/ int13_dev8e/
> int13_dev83/ int13_dev87/ int13_dev8b/ int13_dev8f/
>
> But I have just a single disk. This is the same system BTW.
Some BIOSes do not always set CF on error before return from int13.
The patch adds additional check for status being zero (AH == 0).
This was fixed for edd.S in
http://marc.info/?l=linux-kernel&m=114087765422490&w=2, but lost
again when edd.S was rewritten in C.
Signed-off-by: Andrey Borzenkov <arvidjaar@mail.ru>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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When building image.iso (make isoimage), use the isohybrid tool if it
exists. isohybrid is a script included with Syslinux 3.72 and higher,
which creates an image that can be booted either as a hard disk
(including removable, e.g. USB disk) or as a CD-ROM.
If isohybrid doesn't exist, then this has no effect.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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The Kbuild variable "targets" is supposed to be
configuration-independent and reflect "all possible targets". This is
required to make "make clean" work properly.
Therefore, move all manipulation of "targets" as well as custom rules
out of the x86-32 ifdef statement. Only leave inside the ifdefs the
things that are genuinely configuration-dependent.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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Impact: cleanup
Video mode selection became always possible in 2.6.23-rc1 after i386 setup
code rewrite in C.
Regardless, VIDEO_SELECT is stupid config option because it affects only
kernel setup code, not code which always stays in memory.
vga= always possible now which is good.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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Conflicts:
arch/x86/kernel/early-quirks.c
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This PCI ID based quick should be a full solution for the IRQ0 override
related slowdown problem on SB450 based systems:
33fb0e4: x86: SB450: skip IRQ0 override if it is not routed to INT2 of IOAPIC
Emit a warning in those cases where the DMI quirk triggers but
the PCI ID based quirk didnt.
If this warning does not trigger then we can phase out the DMI quirks.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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On some HP nx6... laptops (e.g. nx6325) BIOS reports an IRQ0 override
but the SB450 chipset is configured such that timer interrupts goe to
INT0 of IOAPIC.
Check IRQ0 routing and if it is routed to INT0 of IOAPIC skip the
timer override.
[ This more generic PCI ID based quirk should alleviate the need for
dmi_ignore_irq0_timer_override DMI quirks. ]
Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Acked-by: "Maciej W. Rozycki" <macro@linux-mips.org>
Tested-by: Dmitry Torokhov <dtor@mail.ru>
Cc: <stable@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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This adds a user_regset type for the x86 io permissions bitmap.
This makes it appear in core dumps (when ioperm has been used).
It will also make it visible to debuggers in the future.
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
[conflict resolutions: Signed-off-by: Ingo Molnar <mingo@elte.hu> ]
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fix warning:
arch/x86/kernel/xsave.c: In function ‘save_i387_xstate’:
arch/x86/kernel/xsave.c:98: warning: ignoring return value of ‘__clear_user’, declared with attribute warn_unused_result
check the return value and act on it. We should not be ignoring faults
at this point.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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If a processor implementation discern that a processor state component is in
its initialized state, it may modify the corresponding bit in the
xsave header.xstate_bv as '0'. State in the memory layout setup by 'xsave'
will be consistent with the bit values in the header.
During signal handling, legacy applications may change the FP/SSE bits
in the sigcontext memory layout without touching the FP/SSE header bits
in the xsave header. So always set FP/SSE bits in the xsave header
while saving the sigcontext state to the user space. During signal return,
this will enable the kernel to capture any changes to the FP/SSE bits by the
legacy applications which don't touch xsave headers.
xsave aware apps can change the xstate_bv in the xsave header aswell
as change any contents in the memory layout. xrestor as part of sigreturn
will capture all the changes.
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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Actually return failure on error.
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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WARNING: vmlinux.o(.text+0x22453): Section mismatch in reference from the function setup_xstate_init() to the function .init.text:__alloc_bootmem()
The function setup_xstate_init() references the function __init __alloc_bootmem().
This is often because setup_xstate_init lacks a __init annotation or the annotation of __alloc_bootmem is wrong.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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