13 May, 2010
6 commits
-
An index of KVM44x_GUEST_TLB_SIZE is already one too large.
Signed-off-by: Roel Kluin
Acked-by: Hollis Blanchard
Acked-by: Alexander Graf
Signed-off-by: Marcelo Tosatti -
As the processor may not consider GUEST_INTR_STATE_STI as a reason for
blocking NMI, it could return immediately with EXIT_REASON_NMI_WINDOW
when we asked for it. But as we consider this state as NMI-blocking, we
can run into an endless loop.Resolve this by allowing NMI injection if just GUEST_INTR_STATE_STI is
active (originally suggested by Gleb). Intel confirmed that this is
safe, the processor will never complain about NMI injection in this
state.Signed-off-by: Jan Kiszka
KVM-Stable-Tag
Acked-by: Gleb Natapov
Signed-off-by: Marcelo Tosatti -
cpuid_update may operate VMCS, so vcpu_load() and vcpu_put()
should be called to ensure correctness.Signed-off-by: Dongxiao Xu
Signed-off-by: Marcelo Tosatti -
This patch makes KVM on 32 bit SVM working again by
correcting the masks used for iret interception. With the
wrong masks the upper 32 bits of the intercepts are masked
out which leaves vmrun unintercepted. This is not legal on
svm and the vmrun fails.
Bug was introduced by commits 95ba827313 and 3cfc3092.Cc: Jan Kiszka
Cc: Gleb Natapov
Cc: stable@kernel.org
Signed-off-by: Joerg Roedel
Signed-off-by: Avi Kivity -
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc/perf_event: Fix oops due to perf_event_do_pending call
powerpc/swiotlb: Fix off by one in determining boundary of which ops to use
12 May, 2010
4 commits
-
As of git commit 1844c9bc0b2fed3023551c1affe033ab38e90b9a head64.S/head31.S
are not included in head.S anymore but build as an extra object. This breaks
shared kernel support because the .org statement in head64.S/head31.S for
CONFIG_SHARED_KERNEL=y will have a different effect. The end address of the
head.text section in head.o will be added to the .org value, to compensate
for this subtract 0x11000 to get the required value of 0x100000 again.Signed-off-by: Martin Schwidefsky
-
strace may change the system call number, so regs->gprs[2] must not
be read before tracehook_report_syscall_entry(). This fixes a bug
where "strace -f" will hang after a vfork().Cc:
Signed-off-by: Gerald Schaefer
Signed-off-by: Martin Schwidefsky -
Anton Blanchard found that large POWER systems would occasionally
crash in the exception exit path when profiling with perf_events.
The symptom was that an interrupt would occur late in the exit path
when the MSR[RI] (recoverable interrupt) bit was clear. Interrupts
should be hard-disabled at this point but they were enabled. Because
the interrupt was not recoverable the system panicked.The reason is that the exception exit path was calling
perf_event_do_pending after hard-disabling interrupts, and
perf_event_do_pending will re-enable interrupts.The simplest and cleanest fix for this is to use the same mechanism
that 32-bit powerpc does, namely to cause a self-IPI by setting the
decrementer to 1. This means we can remove the tests in the exception
exit path and raw_local_irq_restore.This also makes sure that the call to perf_event_do_pending from
timer_interrupt() happens within irq_enter/irq_exit. (Note that
calling perf_event_do_pending from timer_interrupt does not mean that
there is a possible 1/HZ latency; setting the decrementer to 1 ensures
that the timer interrupt will happen immediately, i.e. within one
timebase tick, which is a few nanoseconds or 10s of nanoseconds.)Signed-off-by: Paul Mackerras
Cc: stable@kernel.org
Signed-off-by: Benjamin Herrenschmidt -
…/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
kprobes/x86: Fix removed int3 checking order
perf: Fix static strings treated like dynamic ones
11 May, 2010
1 commit
-
Fix kprobe/x86 to check removed int3 when failing to get kprobe
from hlist. Since we have a time window between checking int3
exists on probed address and getting kprobe on that address,
we can have following scenario:-------
CPU1 CPU2
hit int3
check int3 exists
remove int3
remove kprobe from hlist
get kprobe from hlist
no kprobe->OOPS!
-------This patch moves int3 checking if there is no kprobe on that
address for fixing this problem as follows:------
CPU1 CPU2
hit int3
remove int3
remove kprobe from hlist
get kprobe from hlist
no kprobe->check int3 exists
->rollback&retry
------Signed-off-by: Masami Hiramatsu
Acked-by: Ananth N Mavinakayanahalli
Cc: systemtap
Cc: DLE
Cc: Dave Anderson
Cc: Peter Zijlstra
Cc: Mike Galbraith
Cc: Paul Mackerras
Cc: Arnaldo Carvalho de Melo
Cc: Frederic Weisbecker
LKML-Reference:
Signed-off-by: Ingo Molnar
08 May, 2010
1 commit
-
* 'v4l_for_2.6.34' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6:
V4L/DVB: pxa_camera: move fifo reset direct before dma start
V4L/DVB: video: testing unsigned for less than 0
V4L/DVB: mx1-camera: compile fix
V4L/DVB: budget: Oops: "BUG: unable to handle kernel NULL pointer dereference"
V4L/DVB: ngene: Workaround for stuck DiSEqC pin
V4L/DVB: saa7146: fix regression of the av7110/budget-av driver
V4L/DVB: v4l: fix config dependencies: mxb and saa7191 are V4L2 drivers, not V4L1
V4L/DVB: feature-removal: announce videotext.h removal
V4L/DVB: V4L - vpfe capture - fix for kernel crash
V4L/DVB: gspca: make usb id 0461:0815 get handled by the right driver
V4L/DVB: gspca - stv06xx: Remove the 046d:08da from the stv06xx driver
V4L/DVB: gspca - sn9c20x: Correct onstack wait_queue_head declaration
V4L/DVB: saa7146: fix up bytesperline if it is an impossible value
V4L/DVB: V4L: vpfe_capture - free ccdc_lock when memory allocation fails
V4L/DVB: V4L - Makfile:Removed duplicate entry of davinci
V4L/DVB: omap24xxcam: potential buffer overflow
07 May, 2010
1 commit
-
This fixes a regression of
7d58289 (mx1: prefix SOC specific defines with MX1_ and deprecate old names)
Signed-off-by: Uwe Kleine-König
Acked-by: Sascha Hauer
Signed-off-by: Guennadi Liakhovetski
Signed-off-by: Mauro Carvalho Chehab
06 May, 2010
27 commits
-
* 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze:
microblaze: Defconfig update
microblaze: Optimize CACHE_LOOP_LIMITS and CACHE_RANGE_LOOP macros
microblaze: Fix consistent-sync code
microblaze: Define correct L1_CACHE_SHIFT value
microblaze: cpuinfo shows cache line length
microblaze: Fix kmalloc alignment on non-coherent DMA platforms
microblaze: Fix typo fault in cache code
microblaze: Fix consistent code
microblaze: pci-dma: use include/linux/dma-mapping.h
microblaze: page.h: Remove get_user_page and free_user_page
microblaze: Remove "cache" optimized copy_page function
microblaze: invoke oom-killer from page fault
microblaze: fix divide by zero exception message
microblaze: Add isa_dma_bridge_buggy to dma.h
microblaze: Remove ancient code
microblaze: Quiet section mismatch warnings for MMU version
microblaze: Quiet section mismatch warnings
microblaze: Fix IRQ entry/exit ftracing
microblaze: resource/PCI: align functions now return start of resource
microblaze: PCI: add pci_bus_for_each_resource(), remove direct bus->resource[] refs -
* master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] pxa/colibri: fix missing #include in colibri.h
[ARM] pxa/spitz: fix On/off key name to fix warning during boot
[ARM] pxa: fix the incorrect cpu_is_pxa950()
[ARM] pxa: update cpuid pattern for pxa9xx in head.S
[ARM] pxa/viper: fix timeout usage for I2C
[ARM] pxa/raumfeld: fix button name
[ARM] pxa/imote2: Fix iMote2 defconfig
[ARM] pxa: add missing new line to regs-u2d.h
ARM: 6093/1: Fix kernel memory printing for sparsemem
arch/arm/include/asm/elf.h: forward-declare the task-struct
arch/arm/plat-pxa/dma.c: correct NULL test
ARM: 6076/1: SA1100: add processor check to sa1110-cpufreq driver
ARM: 6075/1: SA1100: fix wrong CPU type for h3100 and h3600
ARM: Update mach-types
ARM: 6066/1: Fix "BUG: scheduling while atomic: swapper/0/0x00000002
ARM: 6068/1: Fix build break with KPROBES enabled
mx5: Fix build error for mx51_defconfig -
* 'sh/for-2.6.34' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
sh: fix a number of Oopses and leaks in SH framebuffer driver
SH: fix error paths in DMA driver
sh: sh7751 pci controller io port fix
sh: Fix maximum number of SCIF ports in R2D defconfigs
SH: fix TS field shift calculation for DMA drivers -
Signed-off-by: Michal Simek
-
1. Remove CACHE_ALL_LOOP2 macro because it is identical to CACHE_ALL_LOOP
2. Change BUG_ON to WARN_ON
3. Remove end aligned from CACHE_LOOP_LIMITS.
C implementation do not need aligned end address and ASM code do aligned
in their macros
4. ASM optimized CACHE_RANGE_LOOP_1/2 macros needs to get aligned end address.
Because end address is compound from start + size, end address is the first address
which is exclude.Here is the corresponding code which describe it.
+ int align = ~(line_length - 1);
+ end = ((end & align) == end) ? end - line_length : end & align;a) end is aligned:
it is necessary to subtruct line length because we don't want to work with
next cacheline
b) end address is not aligned:
Just align it to be ready for ASM code.Signed-off-by: Michal Simek
-
PCI_DMA_FROMDEVICE should call invalidation not flushing.
Signed-off-by: Michal Simek
-
Microblaze cacheline length is configurable and current cpu
uses two cacheline length 4 and 8.We are taking conservative maximum value to be sure that cacheline
alignment is satisfied for all cases.Here is the calculation for cacheline lenght 8 32bit=4Byte values
which is corresponding with SHIFT 5.Signed-off-by: Michal Simek
-
Show cache line length in /proc/cpuinfo.
Signed-off-by: Michal Simek
-
Based on PowerPC patche 52142e756e9bf6485d3d53596e8aff2e816a7253
PowerPC description:
On platforms doing non-coherent DMA (4xx, 8xx, ...), it's important
that the kmalloc minimum alignment is set to the cache line size, to
avoid sharing cache lines between different objects, so that DMA to
one of the objects doesn't corrupt the other.Signed-off-by: Michal Simek
-
Copy & paste error.
Signed-off-by: Michal Simek
-
This patch fix consistent code which had problems with consistent_free
function.
I am not sure if we need to call flush_tlb_all after it but it keeps
tlbs synced.
I added noMMU and MMU version together.Uncached shadow feature is not tested.
Signed-off-by: Michal Simek
-
Based on af407c6db16aa9ca63559076dbe620220a822580
and f41b177157718abe9a93868bb76e47d4a6f3681dSigned-off-by: Michal Simek
-
Remove ancient macros which are here from Linux-2.4
Signed-off-by: Michal Simek
-
Current implementation doesn't handle dcache_line_length
correctly that's why is better to use generic memcpy.Cache optimized function could be good way howto improve
performance but must be based on benchmarking not blind
function like this.Signed-off-by: Michal Simek
-
As explained in commit 1c0fe6e3bd, we want to call the architecture independent
oom killer when getting an unexplained OOM from handle_mm_fault, rather than
simply killing current.Cc: microblaze-uclinux@itee.uq.edu.au
Cc: Michal Simek
Cc: linux-arch@vger.kernel.org
Signed-off-by: Nick Piggin
Acked-by: David Rientjes
Acked-by: Michal Simek -
Fix divide exception message to say "divide by zero".
Signed-off-by: Randy Dunlap
Cc: Michal Simek
Cc: microblaze-uclinux@itee.uq.edu.au
Signed-off-by: Michal Simek -
It is necessary for several drivers.
Signed-off-by: Michal Simek
-
I found several function which we don't use that's why I am removing them.
Signed-off-by: Michal Simek
-
Remove section mismatch - based on ppc aproach.
WARNING: vmlinux.o(.text+0x64834): Section mismatch in reference
from the function __pte_alloc_kernel() to the function .init.text:early_get_page()
The function __pte_alloc_kernel() references
the function __init early_get_page().
This is often because __pte_alloc_kernel lacks a __init
annotation or the annotation of early_get_page is wrong.Signed-off-by: Michal Simek
-
_start is located in .text, which causes mismatch warnings with
machine_early_init() and start_kernel() in .init.text.Signed-off-by: Steven J. Magnani
Signed-off-by: Michal Simek -
Function traces on Microblaze don't include IRQ entry and exit arrows,
i.e.0) | memcpy_toiovec() {
0) ==========> |
0) | do_IRQ() {
...
0)
Signed-off-by: Michal Simek -
This change should be part of b26b2d494b659f988b4d75eb394dfa0ddac415c9
Origin description:
resource/PCI: align functions now return start of resource
As suggested by Linus, align functions should return the start
of a resource, not void. An update of "res->start" is no longer
necessary.Signed-off-by: Michal Simek
-
This change should be part of 89a74ecccd1f78e51faf6287e5c0e93a92ac096e
Origin description:
PCI: add pci_bus_for_each_resource(), remove direct bus->resource[] refs
No functional change; this converts loops that iterate from 0 to
PCI_BUS_NUM_RESOURCES through pci_bus resource[] table to use the
pci_bus_for_each_resource() iterator instead.This doesn't change the way resources are stored; it merely removes
dependencies on the fact that they're in a table.Signed-off-by: Michal Simek
-
The use of mfp_cfg_t causes build errors without including .
CC: stable@kernel.org
CC: Daniel Mack
Signed-off-by: Jakob Viketoft
Signed-off-by: Eric Miao -
On/Off contains slash in the name, which causes warning during boot.
Signed-off-by: Pavel Machek
Signed-off-by: Eric Miao -
Fix the wrong variable used in cpu_is_pxa950().
Signed-off-by: Haojian Zhuang
Signed-off-by: Eric Miao
