Commit-ID: 3c1d32300920a446c67d697cd6b80f012ad06028
Gitweb: http://git.kernel.org/tip/3c1d32300920a446c67d697cd6b80f012ad06028
Author: Qiaowei Ren
AuthorDate: Sun, 7 Jun 2015 11:37:02 -0700
Committer: Ingo Molnar
CommitDate: Tue, 9 Jun 2015 12:24:30 +0200
x86/mpx: Remove redundant
Commit-ID: 5776563648f6437ede91c91cbad85862ca682b0b
Gitweb: http://git.kernel.org/tip/5776563648f6437ede91c91cbad85862ca682b0b
Author: Qiaowei Ren
AuthorDate: Fri, 14 Nov 2014 07:18:32 -0800
Committer: Thomas Gleixner
CommitDate: Tue, 18 Nov 2014 00:58:54 +0100
x86, mpx: Add
Commit-ID: 57319d80e1d328e34cb24868a4f4405661485e30
Gitweb: http://git.kernel.org/tip/57319d80e1d328e34cb24868a4f4405661485e30
Author: Qiaowei Ren
AuthorDate: Fri, 14 Nov 2014 07:18:27 -0800
Committer: Thomas Gleixner
CommitDate: Tue, 18 Nov 2014 00:58:53 +0100
x86, mpx: Add MPX
Commit-ID: 4aae7e436fa51faf4bf5d11b175aea82cfe8224a
Gitweb: http://git.kernel.org/tip/4aae7e436fa51faf4bf5d11b175aea82cfe8224a
Author: Qiaowei Ren
AuthorDate: Fri, 14 Nov 2014 07:18:25 -0800
Committer: Thomas Gleixner
CommitDate: Tue, 18 Nov 2014 00:58:53 +0100
x86, mpx: Introduce
Commit-ID: 232b5fff5bad78ad00b94153fa90ca53bef6a444
Gitweb: http://git.kernel.org/tip/232b5fff5bad78ad00b94153fa90ca53bef6a444
Author: Qiaowei Ren
AuthorDate: Fri, 14 Nov 2014 07:18:20 -0800
Committer: Thomas Gleixner
CommitDate: Tue, 18 Nov 2014 00:58:53 +0100
mips: Sync struct
Commit-ID: 53f037b08b5bebf47aa2b574a984e2f9fc7926f2
Gitweb: http://git.kernel.org/tip/53f037b08b5bebf47aa2b574a984e2f9fc7926f2
Author: Qiaowei Ren
AuthorDate: Fri, 14 Nov 2014 07:18:22 -0800
Committer: Thomas Gleixner
CommitDate: Tue, 18 Nov 2014 00:58:53 +0100
ia64: Sync struct
Commit-ID: ee1b58d36aa1b5a79eaba11f5c3633c88231da83
Gitweb: http://git.kernel.org/tip/ee1b58d36aa1b5a79eaba11f5c3633c88231da83
Author: Qiaowei Ren
AuthorDate: Fri, 14 Nov 2014 07:18:19 -0800
Committer: Thomas Gleixner
CommitDate: Tue, 18 Nov 2014 00:58:53 +0100
mpx: Extend siginfo
This patch adds new fields about bound violation into siginfo
structure. si_lower and si_upper are respectively lower bound
and upper bound when bound violation is caused.
Signed-off-by: Qiaowei Ren
---
include/uapi/asm-generic/siginfo.h |9 -
kernel/signal.c
patch must be applied after another Dave's commit:
381aa07a9b4e1f82969203e9e4863da2a157781d
Signed-off-by: Dave Hansen
Signed-off-by: Qiaowei Ren
---
arch/x86/include/asm/disabled-features.h |8 +++-
1 files changed, 7 insertions(+), 1 deletions(-)
diff --git a/arch/x86/includ
New fields about bound violation are added into general struct
siginfo. This will impact MIPS and IA64, which extend general
struct siginfo. This patch syncs this struct for MIPS with
general version.
Signed-off-by: Qiaowei Ren
---
arch/mips/include/uapi/asm/siginfo.h |4
1 files
managing
bounds tables that we could think of, we create them on demand in
the kernel.
Signed-off-by: Qiaowei Ren
---
arch/x86/include/asm/mpx.h | 20 +
arch/x86/kernel/Makefile |1 +
arch/x86/kernel/mpx.c | 101
arc
erfaces to do this in current kernel.
Existing interfaces, like do_mmap_pgoff(), could not stick specific
->vm_ops in the vma_area_struct when a VMA is created. So, this patch
adds MPX specific mmap interface to do the allocation of bounds tables.
Signed-off-by: Qiaowei Ren
---
arc
from merging. We
understand that VM_ flags are scarce and are open to other options.
Signed-off-by: Qiaowei Ren
---
fs/proc/task_mmu.c |1 +
include/linux/mm.h |6 ++
2 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index dfc791c..cc31
New fields about bound violation are added into general struct
siginfo. This will impact MIPS and IA64, which extend general
struct siginfo. This patch syncs this struct for IA64 with
general version.
Signed-off-by: Qiaowei Ren
---
arch/ia64/include/uapi/asm/siginfo.h |8 ++--
1 files
This patch adds the Documentation/x86/intel_mpx.txt file with some
information about Intel MPX.
Signed-off-by: Qiaowei Ren
---
Documentation/x86/intel_mpx.txt | 245 +++
1 files changed, 245 insertions(+), 0 deletions(-)
create mode 100644 Documentation/x86
e the
generic decoder is very heavyweight not just in terms of performance
but in terms of interface -- because it has to.
Signed-off-by: Qiaowei Ren
---
arch/x86/include/asm/mpx.h | 23
arch/x86/kernel/mpx.c | 299
arch/x86/kernel/traps.c|
faults while touching the bounds directory
entry. This keeps us from being able to free the tables in this case.
This deficiency will be addressed in later patches.
Signed-off-by: Qiaowei Ren
---
arch/x86/include/asm/mmu_context.h | 16 ++
arch/x86/include/asm/mpx.h |9 +
arch
be in a world of hurt.
But we will still check whether it is changed by users at #BR fault
time.
Signed-off-by: Qiaowei Ren
---
arch/x86/include/asm/mmu_context.h |9
arch/x86/include/asm/mpx.h | 11 +
arch/x86/include/asm/processor.h | 18 +++
arch/x86/kern
e management of bounds
tables in kernel is enabled at #BR fault time, and add locking to
protect the access to 'bd_addr'.
* update the documentation file to add more content about on-demand
allocation of bounds tables, etc..
Qiaowei Ren (12):
mm: distinguish VMAs with dif
According to Intel SDM extension, MPX configuration and status registers
should be BNDCFGU and BNDSTATUS. This patch renames cfg_reg_u and
status_reg to bndcfgu and bndstatus.
Signed-off-by: Qiaowei Ren
---
arch/x86/include/asm/processor.h |4 ++--
1 files changed, 2 insertions(+), 2
he same thing.
* fix warnings for 32 bit arch.
* add more description into these patches.
Changes since v7:
* introduce VM_ARCH_2 flag.
* remove all of the pr_debug()s.
* fix prctl numbers in documentation.
* fix some bugs on bounds tables freeing.
Qiaowei Ren (10):
x86, mpx: introd
memory is being dedicated to it. With this
feature, plus some grepping in /proc/$pid/smaps one could take a
pretty good stab at it.
Signed-off-by: Qiaowei Ren
---
arch/x86/Kconfig |4 ++
arch/x86/include/asm/mpx.h | 38 +
arch/x86/mm/Makefile |2 +
arch
();
Signed-off-by: Qiaowei Ren
---
arch/x86/include/asm/cpufeature.h |6 ++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/arch/x86/include/asm/cpufeature.h
b/arch/x86/include/asm/cpufeature.h
index bb9b258..82ec7ed 100644
--- a/arch/x86/include/asm/cpufeature.h
+++ b/arch/x86
This patch adds new fields about bound violation into siginfo
structure. si_lower and si_upper are respectively lower bound
and upper bound when bound violation is caused.
Signed-off-by: Qiaowei Ren
---
include/uapi/asm-generic/siginfo.h |9 -
kernel/signal.c
sibly contain a bounds table.
This is less expensive than (1), but still requires reading a pointer
out of userspace for every VMA that we iterate over.
Signed-off-by: Qiaowei Ren
---
fs/proc/task_mmu.c |1 +
include/linux/mm.h |6 ++
2 files changed, 7 insertions(+), 0 deletions(-)
Due to new fields about bound violation added into struct siginfo,
this patch syncs it with general version to avoid build issue.
Signed-off-by: Qiaowei Ren
---
arch/mips/include/uapi/asm/siginfo.h |4
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/arch/mips/include
somewhere else. We don't have
that room in the kernel address space.
Signed-off-by: Qiaowei Ren
---
arch/x86/include/asm/mpx.h | 20 +++
arch/x86/kernel/Makefile |1 +
arch/x86/kernel/mpx.c | 58
arch/x86/kernel/tr
check whether one application is mpx enabled.
Signed-off-by: Qiaowei Ren
---
arch/x86/include/asm/mpx.h |1 +
arch/x86/include/asm/processor.h | 18
arch/x86/kernel/mpx.c| 55 ++
include/linux/mm_types.h |3
This patch adds the Documentation/x86/intel_mpx.txt file with some
information about Intel MPX.
Signed-off-by: Qiaowei Ren
---
Documentation/x86/intel_mpx.txt | 127 +++
1 files changed, 127 insertions(+), 0 deletions(-)
create mode 100644 Documentation/x86
the virtual address region which is being unmapped will be freed also.
Signed-off-by: Qiaowei Ren
---
arch/x86/include/asm/mmu_context.h | 16 +++
arch/x86/include/asm/mpx.h |9 ++
arch/x86/mm/mpx.c | 252
include/asm-generic
e the
generic decoder is very heavyweight not just in terms of performance
but in terms of interface -- because it has to.
Signed-off-by: Qiaowei Ren
---
arch/x86/include/asm/mpx.h | 23
arch/x86/kernel/mpx.c | 299
arch/x86/kernel/traps.c|
memory is being dedicated to it. With this
feature, plus some grepping in /proc/$pid/smaps one could take a
pretty good stab at it.
Signed-off-by: Qiaowei Ren
---
arch/x86/Kconfig |4 ++
arch/x86/include/asm/mpx.h | 38 +
arch/x86/mm/Makefile |2 +
arch
This patch adds new fields about bound violation into siginfo
structure. si_lower and si_upper are respectively lower bound
and upper bound when bound violation is caused.
Signed-off-by: Qiaowei Ren
---
include/uapi/asm-generic/siginfo.h |9 -
kernel/signal.c
somewhere else. We don't have
that room in the kernel address space.
Signed-off-by: Qiaowei Ren
---
arch/x86/include/asm/mpx.h | 20 ++
arch/x86/kernel/Makefile |1 +
arch/x86/kernel/mpx.c | 60
arch/x86/kernel/tr
hing.
* fix warnings for 32 bit arch.
* add more description into these patches.
Qiaowei Ren (10):
x86, mpx: introduce VM_MPX to indicate that a VMA is MPX specific
x86, mpx: add MPX specific mmap interface
x86, mpx: add macro cpu_has_mpx
x86, mpx: hook #BR exception handler to allocate
the virtual address region which is being unmapped will be freed also.
Signed-off-by: Qiaowei Ren
---
arch/x86/include/asm/mmu_context.h | 16 +++
arch/x86/include/asm/mpx.h |9 ++
arch/x86/mm/mpx.c | 181
include/asm-generic
();
Signed-off-by: Qiaowei Ren
---
arch/x86/include/asm/cpufeature.h |6 ++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/arch/x86/include/asm/cpufeature.h
b/arch/x86/include/asm/cpufeature.h
index e265ff9..f302d08 100644
--- a/arch/x86/include/asm/cpufeature.h
+++ b/arch/x86
e the
generic decoder is very heavyweight not just in terms of performance
but in terms of interface -- because it has to.
Signed-off-by: Qiaowei Ren
---
arch/x86/include/asm/mpx.h | 23
arch/x86/kernel/mpx.c | 299
arch/x86/kernel/traps.c|
This patch adds the Documentation/x86/intel_mpx.txt file with some
information about Intel MPX.
Signed-off-by: Qiaowei Ren
---
Documentation/x86/intel_mpx.txt | 127 +++
1 files changed, 127 insertions(+), 0 deletions(-)
create mode 100644 Documentation/x86
sibly contain a bounds table.
This is less expensive than (1), but still requires reading a pointer
out of userspace for every VMA that we iterate over.
Signed-off-by: Qiaowei Ren
---
fs/proc/task_mmu.c |1 +
include/linux/mm.h |2 ++
2 files changed, 3 insertions(+), 0 deletions(-)
diff --
Due to new fields about bound violation added into struct siginfo,
this patch syncs it with general version to avoid build issue.
Signed-off-by: Qiaowei Ren
---
arch/mips/include/uapi/asm/siginfo.h |4
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/arch/mips/include
check whether one application is mpx enabled.
Signed-off-by: Qiaowei Ren
---
arch/x86/include/asm/mpx.h |1 +
arch/x86/include/asm/processor.h | 18
arch/x86/kernel/mpx.c| 56 ++
include/linux/mm_types.h |3
ync struct figinfo for mips with general version to avoid
build issue.
Qiaowei Ren (10):
x86, mpx: introduce VM_MPX to indicate that a VMA is MPX specific
x86, mpx: add MPX specific mmap interface
x86, mpx: add macro cpu_has_mpx
x86, mpx: hook #BR exception handler to allocate bound ta
In order to do performance optimization, this patch adds macro
cpu_has_mpx which will directly return 0 when MPX is not supported
by kernel.
Signed-off-by: Qiaowei Ren
---
arch/x86/include/asm/cpufeature.h |6 ++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/arch/x86
sibly contain a bounds table.
This is less expensive than (1), but still requires reading a pointer
out of userspace for every VMA that we iterate over.
Signed-off-by: Qiaowei Ren
---
arch/x86/mm/init_64.c |2 ++
fs/proc/task_mmu.c|1 +
include/linux/mm.h|2 ++
3 files chang
This patch adds new fields about bound violation into siginfo
structure. si_lower and si_upper are respectively lower bound
and upper bound when bound violation is caused.
Signed-off-by: Qiaowei Ren
---
include/uapi/asm-generic/siginfo.h |9 -
kernel/signal.c
.
Signed-off-by: Qiaowei Ren
---
arch/x86/Kconfig |4 +++
arch/x86/include/asm/mpx.h | 38
arch/x86/mm/Makefile |2 +
arch/x86/mm/mpx.c | 58
4 files changed, 102 insertions(+), 0
check whether one application is mpx enabled.
Signed-off-by: Qiaowei Ren
---
arch/x86/include/asm/mpx.h |1 +
arch/x86/include/asm/processor.h | 18
arch/x86/kernel/mpx.c| 56 ++
include/linux/mm_types.h |3
This patch sets bound violation fields of siginfo struct in #BR
exception handler by decoding the user instruction and constructing
the faulting pointer.
Signed-off-by: Qiaowei Ren
---
arch/x86/include/asm/mpx.h | 23
arch/x86/kernel/mpx.c | 294
When user memory region is unmapped, related bound tables
become unused and need to be released also. This patch cleanups
these unused bound tables through hooking unmap path.
Signed-off-by: Qiaowei Ren
---
arch/x86/include/asm/mmu_context.h | 16 +++
arch/x86/include/asm/mpx.h |9
This patch adds the Documentation/x86/intel_mpx.txt file with some
information about Intel MPX.
Signed-off-by: Qiaowei Ren
---
Documentation/x86/intel_mpx.txt | 127 +++
1 files changed, 127 insertions(+), 0 deletions(-)
create mode 100644 Documentation/x86
Due to new fields about bound violation added into struct siginfo,
this patch syncs it with general version to avoid build issue.
Signed-off-by: Qiaowei Ren
---
arch/mips/include/uapi/asm/siginfo.h |4
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/arch/mips/include
somewhere else. We don't have
that room in the kernel address space.
Signed-off-by: Qiaowei Ren
---
arch/x86/include/asm/mpx.h | 20 ++
arch/x86/kernel/Makefile |1 +
arch/x86/kernel/mpx.c | 63
arch/x86/kernel/tr
entry.
Signed-off-by: Qiaowei Ren
---
arch/x86/include/asm/mpx.h | 35 +++
arch/x86/kernel/Makefile |1 +
arch/x86/kernel/mpx.c | 46
arch/x86/kernel/traps.c| 56 +++-
4 files
userspace application can get violation address, lower bound
and upper bound for bound violation from this new siginfo structure.
Signed-off-by: Qiaowei Ren
---
arch/x86/include/asm/mpx.h | 19 +++
arch/x86/kernel/mpx.c | 289
arch/x86
This patch adds the Documentation/x86/intel_mpx.txt file with some
information about Intel MPX.
Signed-off-by: Qiaowei Ren
---
Documentation/x86/intel_mpx.txt | 239 +++
1 files changed, 239 insertions(+), 0 deletions(-)
create mode 100644 Documentation/x86
TATUS is 3.
* add some comments.
* remove new prctl() commands.
* fix some compile warnings for 32-bit.
Changes since v4:
* raise SIGBUS if the allocations of the bound tables fail.
Qiaowei Ren (3):
x86, mpx: add documentation on Intel MPX
x86, mpx: hook #BR exception handler to allo
This patch adds the Documentation/x86/intel_mpx.txt file with some
information about Intel MPX.
Signed-off-by: Qiaowei Ren
---
Documentation/x86/intel_mpx.txt | 239 +++
1 files changed, 239 insertions(+), 0 deletions(-)
create mode 100644 Documentation/x86
userspace application can get violation address, lower bound
and upper bound for bound violation from this new siginfo structure.
Signed-off-by: Qiaowei Ren
---
arch/x86/include/asm/mpx.h | 19 +++
arch/x86/kernel/mpx.c | 289
arch/x86
entry.
Signed-off-by: Qiaowei Ren
---
arch/x86/include/asm/mpx.h | 35
arch/x86/kernel/Makefile |1 +
arch/x86/kernel/mpx.c | 44 +++
arch/x86/kernel/traps.c| 55 +++-
4 files
TATUS is 3.
* add some comments.
* remove new prctl() commands.
* fix some compile warnings for 32-bit.
Qiaowei Ren (3):
x86, mpx: add documentation on Intel MPX
x86, mpx: hook #BR exception handler to allocate bound tables
x86, mpx: extend siginfo structure to include bound
The patch fixes the following compiler warning:
CC kernel/trace/trace_events.o
kernel/trace/trace_events.c: In function 'event_enable_read'
kernel/trace/trace_events.c:693: warning: 'flags' may be used \
uninitialized in this function
Signed-off-by: Qiaowei Re
userspace application can get violation address, lower bound
and upper bound for bound violation from this new siginfo structure.
Signed-off-by: Qiaowei Ren
---
arch/x86/include/asm/mpx.h | 19 +++
arch/x86/kernel/mpx.c | 287
arch/x86
memory area is unmapped.
Signed-off-by: Qiaowei Ren
---
arch/x86/Kconfig |4 ++
arch/x86/include/asm/mpx.h |9
arch/x86/include/asm/processor.h | 16 +++
arch/x86/kernel/mpx.c| 84 ++
include/uapi/linux/prctl.h
d macro as much as possible when
decode mpx instructions.
Changes since v2:
* fix some compile warnings.
* update documentation.
Qiaowei Ren (4):
x86, mpx: add documentation on Intel MPX
x86, mpx: hook #BR exception handler to allocate bound tables
x86, mpx: add prctl commands P
entry.
Signed-off-by: Qiaowei Ren
---
arch/x86/include/asm/mpx.h | 35
arch/x86/kernel/Makefile |1 +
arch/x86/kernel/mpx.c | 44 +++
arch/x86/kernel/traps.c| 55 +++-
4 files
This patch adds the Documentation/x86/intel_mpx.txt file with some
information about Intel MPX.
Signed-off-by: Qiaowei Ren
---
Documentation/x86/intel_mpx.txt | 226 +++
1 files changed, 226 insertions(+), 0 deletions(-)
create mode 100644 Documentation/x86
Changes since v1:
* check to see if #BR occurred in userspace or kernel space.
* use generic structure and macro as much as possible when
decode mpx instructions.
Qiaowei Ren (4):
x86, mpx: add documentation on Intel MPX
x86, mpx: hook #BR exception handler to allocate bound tables
This patch adds the Documentation/x86/intel_mpx.txt file with some
information about Intel MPX.
Signed-off-by: Qiaowei Ren
---
Documentation/x86/intel_mpx.txt | 76 +++
1 files changed, 76 insertions(+), 0 deletions(-)
create mode 100644 Documentation/x86
memory area is unmapped.
Signed-off-by: Qiaowei Ren
---
arch/x86/Kconfig |4 ++
arch/x86/include/asm/mpx.h |9
arch/x86/include/asm/processor.h | 16 +++
arch/x86/kernel/mpx.c| 84 ++
include/uapi/linux/prctl.h
entry.
Signed-off-by: Qiaowei Ren
---
arch/x86/include/asm/mpx.h | 35
arch/x86/kernel/Makefile |1 +
arch/x86/kernel/mpx.c | 44 +++
arch/x86/kernel/traps.c| 55 +++-
4 files
userspace application can get violation address, lower bound
and upper bound for bound violation from this new siginfo structure.
Signed-off-by: Qiaowei Ren
---
arch/x86/include/asm/mpx.h | 19 +++
arch/x86/kernel/mpx.c | 289
arch/x86
Commit-ID: fb09b78151361f5001ad462e4b242b10845830e2
Gitweb: http://git.kernel.org/tip/fb09b78151361f5001ad462e4b242b10845830e2
Author: Qiaowei Ren
AuthorDate: Sun, 12 Jan 2014 17:20:02 +0800
Committer: H. Peter Anvin
CommitDate: Fri, 17 Jan 2014 11:04:09 -0800
x86, mpx: Add MPX
This patch adds all the MPX instructions to x86 opcode map, and then
the x86 instruction decoder can decode MPX instructions used in kernel.
Signed-off-by: Qiaowei Ren
---
arch/x86/lib/x86-opcode-map.txt |4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/lib
memory area is unmapped.
Signed-off-by: Qiaowei Ren
---
arch/x86/Kconfig |4 ++
arch/x86/include/asm/mpx.h |9
arch/x86/include/asm/processor.h | 16 +++
arch/x86/kernel/mpx.c| 84 ++
include/uapi/linux/prctl.h
This patch adds the Documentation/x86/intel_mpx.txt file with some
information about Intel MPX.
Signed-off-by: Qiaowei Ren
---
Documentation/x86/intel_mpx.txt | 76 +++
1 files changed, 76 insertions(+), 0 deletions(-)
create mode 100644 Documentation/x86
entry.
Signed-off-by: Qiaowei Ren
---
arch/x86/include/asm/mpx.h | 35 +
arch/x86/kernel/Makefile |1 +
arch/x86/kernel/mpx.c | 44 ++
arch/x86/kernel/traps.c| 46
userspace application can get violation address, lower bound
and upper bound for bound violation from this new siginfo structure.
Signed-off-by: Qiaowei Ren
---
arch/x86/include/asm/mpx.h | 39 +
arch/x86/kernel/mpx.c | 289
arch/x86
Commit-ID: 0ee3b6f87d4d748d5362cb47ff33fa1553805cb4
Gitweb: http://git.kernel.org/tip/0ee3b6f87d4d748d5362cb47ff33fa1553805cb4
Author: Qiaowei Ren
AuthorDate: Sat, 14 Dec 2013 14:25:03 +0800
Committer: H. Peter Anvin
CommitDate: Mon, 16 Dec 2013 09:08:13 -0800
x86: replace
Commit-ID: f09174c501f8bb259788cc36d5a7aa5b2831fb5e
Gitweb: http://git.kernel.org/tip/f09174c501f8bb259788cc36d5a7aa5b2831fb5e
Author: Qiaowei Ren
AuthorDate: Sat, 14 Dec 2013 14:25:02 +0800
Committer: H. Peter Anvin
CommitDate: Mon, 16 Dec 2013 09:07:57 -0800
x86: add
.)
Signed-off-by: Qiaowei Ren
---
arch/x86/include/asm/uaccess.h | 91
1 files changed, 91 insertions(+), 0 deletions(-)
diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h
index 5838fa9..894d8bf 100644
--- a/arch/x86/include
futex_atomic_cmpxchg_inatomic() is only the 32bit implementation of
user_atomic_cmpxchg_inatomic(). This patch replaces it with
user_atomic_cmpxchg_inatomic().
Signed-off-by: Qiaowei Ren
---
arch/x86/include/asm/futex.h | 27 ++-
1 files changed, 2 insertions(+), 25
Documentation/x86 is a more fitting place for intel_txt.txt.
Signed-off-by: Qiaowei Ren
---
Documentation/intel_txt.txt | 210 ---
Documentation/x86/intel_txt.txt | 210 +++
2 files changed, 210 insertions(+), 210
Commit-ID: e7d820a5e549b3eb6c3f9467507566565646a669
Gitweb: http://git.kernel.org/tip/e7d820a5e549b3eb6c3f9467507566565646a669
Author: Qiaowei Ren
AuthorDate: Thu, 5 Dec 2013 17:15:34 +0800
Committer: H. Peter Anvin
CommitDate: Fri, 6 Dec 2013 17:17:42 -0800
x86, xsave: Support eager
This patch defines xstate feature and extends struct xsave_hdr_struct
to support Intel MPX.
Signed-off-by: Qiaowei Ren
Signed-off-by: Xudong Hao
Signed-off-by: Liu Jinsong
---
arch/x86/include/asm/processor.h | 12
arch/x86/include/asm/xsave.h |6 +-
2 files changed
Commit-ID: 191f57c137bcce0e3e9313acb77b2f114d15afbb
Gitweb: http://git.kernel.org/tip/191f57c137bcce0e3e9313acb77b2f114d15afbb
Author: Qiaowei Ren
AuthorDate: Sat, 7 Dec 2013 08:20:57 +0800
Committer: H. Peter Anvin
CommitDate: Fri, 6 Dec 2013 10:21:44 -0800
x86, cpufeature: Define
This patch adds the Documentation/intel_mpx.txt file with some
information about Intel MPX.
Signed-off-by: Qiaowei Ren
Signed-off-by: Xudong Hao
Signed-off-by: Liu Jinsong
---
Documentation/x86/intel_mpx.txt | 76 +++
1 files changed, 76 insertions(+), 0
This patch defines xstate feature and extends struct xsave_hdr_struct
to support Intel MPX.
Signed-off-by: Qiaowei Ren
Signed-off-by: Xudong Hao
Signed-off-by: Liu Jinsong
---
arch/x86/include/asm/processor.h | 12
arch/x86/include/asm/xsave.h |5 -
2 files changed
This patch defines Intel MPX CPU feature.
Signed-off-by: Qiaowei Ren
Signed-off-by: Xudong Hao
Signed-off-by: Liu Jinsong
---
arch/x86/include/asm/cpufeature.h |1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/arch/x86/include/asm/cpufeature.h
b/arch/x86/include/asm
Signed-off-by: Qiaowei Ren
Signed-off-by: Xudong Hao
Signed-off-by: Liu Jinsong
---
arch/x86/include/asm/processor.h | 23 +++
arch/x86/include/asm/xsave.h |6 +-
2 files changed, 28 insertions(+), 1 deletions(-)
diff --git a/arch/x86/include/asm/processor.h
This patch adds the Documentation/intel_mpx.txt file with some
information about Intel MPX.
Signed-off-by: Qiaowei Ren
Signed-off-by: Xudong Hao
Signed-off-by: Liu Jinsong
---
Documentation/intel_mpx.txt | 77 +++
1 files changed, 77 insertions(+), 0
Signed-off-by: Qiaowei Ren
Signed-off-by: Xudong Hao
Signed-off-by: Liu Jinsong
---
arch/x86/include/asm/cpufeature.h |2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/arch/x86/include/asm/cpufeature.h
b/arch/x86/include/asm/cpufeature.h
index d3f5c63..6c2738d 100644
Current code doesn't use specific interface to access I/O space.
So some potential bugs can be caused. We can fix this by using
specific API.
Signed-off-by: Qiaowei Ren
---
arch/x86/kernel/tboot.c | 18 ++
1 file changed, 10 insertions(+), 8 deletions(-)
diff --git a/arc
Current code doesn't use specific interface to access I/O space.
So some potential bugs can be caused. We can fix this by using
specific API.
Signed-off-by: Qiaowei Ren
---
arch/x86/kernel/tboot.c | 19 +++
1 file changed, 11 insertions(+), 8 deletions(-)
diff --git a
Current code doesn't use specific interface to access I/O space.
So some potential bugs can be caused. We can fix this by using
specific API.
Signed-off-by: Qiaowei Ren
---
arch/x86/kernel/tboot.c | 21 -
1 file changed, 12 insertions(+), 9 deletions(-)
diff --git a
Fixes for iomem annotations in arch/x86/kernel/tboot.c
Signed-off-by: Qiaowei Ren
---
arch/x86/kernel/tboot.c | 21 -
1 file changed, 12 insertions(+), 9 deletions(-)
diff --git a/arch/x86/kernel/tboot.c b/arch/x86/kernel/tboot.c
index 3ff42d2..afe8cf8 100644
--- a/arch
Fixes for iomem annotations in arch/x86/kernel/tboot.c
Signed-off-by: Qiaowei Ren
---
arch/x86/kernel/tboot.c | 43 +++
1 file changed, 11 insertions(+), 32 deletions(-)
diff --git a/arch/x86/kernel/tboot.c b/arch/x86/kernel/tboot.c
index 3ff42d2
Commit-ID: 13bfd47a0ef68fc8b21e67873dbdf269c7db6b59
Gitweb: http://git.kernel.org/tip/13bfd47a0ef68fc8b21e67873dbdf269c7db6b59
Author: Qiaowei Ren
AuthorDate: Mon, 24 Jun 2013 13:55:33 +0800
Committer: Ingo Molnar
CommitDate: Fri, 28 Jun 2013 11:05:16 +0200
x86/tboot: Provide debugfs
These logs come from tboot (Trusted Boot, an open source,
pre-kernel/VMM module that uses Intel TXT to perform a
measured and verified launch of an OS kernel/VMM.).
Signed-off-by: Qiaowei Ren
---
arch/x86/kernel/tboot.c | 72 +++
1 file changed, 72
These logs come from tboot (Trusted Boot, an open source,
pre-kernel/VMM module that uses Intel TXT to perform a
measured and verified launch of an OS kernel/VMM.).
Signed-off-by: Qiaowei Ren
---
arch/x86/kernel/tboot.c | 70 +++
1 file changed, 70
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