Commit Graph

216040 Commits (99457d75f617873591bf886921154e304e603ab4)

Author SHA1 Message Date
Lalit Chandivade 99457d75f6 [SCSI] qla4xxx: Reset seconds_since_last_heartbeat correctly.
The seconds_since_last_heartbeat should be checked for consecutive
heartbeat checks. Currently it could happen that it gets set to
max (2 seconds) for non-consecutive heartbeat checks.

Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: Lalit Chandivade <lalit.chandivade@qlogic.com>
Signed-off-by: Ravi Anand <ravi.anand@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-10-25 14:51:04 -05:00
Nilesh Javali 2bd1e2be8f [SCSI] qla4xxx: On firmware hang do not wait for the outstanding commands to complete
Signed-off-by: Nilesh Javali <nilesh.javali@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: Ravi Anand <ravi.anand@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-10-25 14:50:38 -05:00
Vikas Chaudhary 3710c60c09 [SCSI] qla4xxx: free_irqs on failed initialize_adapter
Since interrupts are registered in start_firmware(load_risc) for 82xx,
free them if init_firmware fails.

Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: Karen Higgins <karen.higgins@qlogic.com>
Signed-off-by: Ravi Anand <ravi.anand@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-10-25 14:50:08 -05:00
Vikas Chaudhary 735e41543c [SCSI] qla4xxx: correct data type of sense_len in qla4xxx_status_cont_entry
change data type of sense_len from uint8_t to uint16_t

Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: Ravi Anand <ravi.anand@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-10-25 14:49:40 -05:00
Vikas Chaudhary 884292ecee [SCSI] qla4xxx: remove "ha->retry_reset_ha_cnt" from wait_for_hba_online
remove "ha->retry_reset_ha_cnt" from wait_for_hba_online as its
initialize to zero at driver init time so it could always return
QLA_ERROR from wait_for_hba_online() without waiting for hba to
come online.

Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: Ravi Anand <ravi.anand@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-10-25 14:49:13 -05:00
Vikas Chaudhary f931c5343f [SCSI] qla4xxx: honor return status of qla4xxx_hw_reset
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: Ravi Anand <ravi.anand@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-10-25 14:48:58 -05:00
Vikas Chaudhary f581a3f79c [SCSI] qla4xxx: Trivial cleanup
* cleanup function qla4xxx_recovery_timeout
	- No need to wakeup dpc thread from function
	qla4xxx_recovery_timeout() as we are not doing anything
	in do_dpc() thread when wakeup from
	qla4xxx_recovery_timeout()

* cleanup function qla4xxx_wait_for_hba_online
	- Remove hard coded value from qla4xxx_wait_for_hba_online().

* cleanup function qla4xxx_start_firmware_from_flash
	- display seconds

* cleanup function  qla4_8xxx_load_risc
	- Remove redundant code.

* cleanup function qla4xxx_get_firmware_status
	- update debug statement

* cleanup function qla4_8xxx_try_start_fw
	- update return status

Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: Ravi Anand <ravi.anand@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-10-25 14:46:35 -05:00
Mike Christie 986fe6c7f5 [SCSI] Fix regressions in scsi_internal_device_block
Deleting a SCSI device on a blocked fc_remote_port (before
fast_io_fail_tmo fires) results in a hanging thread:

  STACK:
  0 schedule+1108 [0x5cac48]
  1 schedule_timeout+528 [0x5cb7fc]
  2 wait_for_common+266 [0x5ca6be]
  3 blk_execute_rq+160 [0x354054]
  4 scsi_execute+324 [0x3b7ef4]
  5 scsi_execute_req+162 [0x3b80ca]
  6 sd_sync_cache+138 [0x3cf662]
  7 sd_shutdown+138 [0x3cf91a]
  8 sd_remove+112 [0x3cfe4c]
  9 __device_release_driver+124 [0x3a08b8]
10 device_release_driver+60 [0x3a0a5c]
11 bus_remove_device+266 [0x39fa76]
12 device_del+340 [0x39d818]
13 __scsi_remove_device+204 [0x3bcc48]
14 scsi_remove_device+66 [0x3bcc8e]
15 sysfs_schedule_callback_work+50 [0x260d66]
16 worker_thread+622 [0x162326]
17 kthread+160 [0x1680b0]
18 kernel_thread_starter+6 [0x10aaea]

During the delete, the SCSI device is in moved to SDEV_CANCEL.  When
the FC transport class later calls scsi_target_unblock, this has no
effect, since scsi_internal_device_unblock ignores SCSI devics in this
state.

It looks like all these are regressions caused by:
5c10e63c94
[SCSI] limit state transitions in scsi_internal_device_unblock

Fix by rejecting offline and cancel in the state transition.

Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
[jejb: Original patch by Christof Schmitt, modified by Mike Christie]
Cc: Stable Tree <stable@kernel.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-10-25 09:48:32 -05:00
Christof Schmitt fb5a638995 [SCSI] zfcp: Use correct length for FCP_RSP_INFO
Use the FCP_RSP_INFO length to correctly skip the FCP_RSP_INFO field.

Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-10-25 09:42:38 -05:00
Christof Schmitt 1a9708cd35 [SCSI] zfcp: Call get_device on port before calling put_device
zfcp_unit_release calls put_device on the port. Ensure that get_device
has been called before possibly triggering the release function
through put_device or device_unregister.

Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-10-25 09:42:37 -05:00
Swen Schillig 0df138476c [SCSI] zfcp: Fix adapter activation on link down
If an exchange config is executed while the local link is down, the
request succeeds but the returned data is incomplete.  Proceeding with
the adapter activation is leading to an unpredictable behaviour (e.g.
kernel panic) caused by invalid values.  In such a scenario the
recommended ERP is to retry the action and wait for a link up event.
If the issue persists the activation has to fail.

Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Sigend-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-10-25 09:42:35 -05:00
Linus Torvalds 229aebb873 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits)
  Update broken web addresses in arch directory.
  Update broken web addresses in the kernel.
  Revert "drivers/usb: Remove unnecessary return's from void functions" for musb gadget
  Revert "Fix typo: configuation => configuration" partially
  ida: document IDA_BITMAP_LONGS calculation
  ext2: fix a typo on comment in ext2/inode.c
  drivers/scsi: Remove unnecessary casts of private_data
  drivers/s390: Remove unnecessary casts of private_data
  net/sunrpc/rpc_pipe.c: Remove unnecessary casts of private_data
  drivers/infiniband: Remove unnecessary casts of private_data
  drivers/gpu/drm: Remove unnecessary casts of private_data
  kernel/pm_qos_params.c: Remove unnecessary casts of private_data
  fs/ecryptfs: Remove unnecessary casts of private_data
  fs/seq_file.c: Remove unnecessary casts of private_data
  arm: uengine.c: remove C99 comments
  arm: scoop.c: remove C99 comments
  Fix typo configue => configure in comments
  Fix typo: configuation => configuration
  Fix typo interrest[ing|ed] => interest[ing|ed]
  Fix various typos of valid in comments
  ...

Fix up trivial conflicts in:
	drivers/char/ipmi/ipmi_si_intf.c
	drivers/usb/gadget/rndis.c
	net/irda/irnet/irnet_ppp.c
2010-10-24 13:41:39 -07:00
Linus Torvalds 8de547e182 Merge branch 'devel' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/edac
* 'devel' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/edac: (25 commits)
  i7300_edac: Properly initialize per-csrow memory size
  V4L/DVB: i7300_edac: better initialize page counts
  MAINTAINERS: Add maintainer for i7300-edac driver
  i7300-edac: CodingStyle cleanup
  i7300_edac: Improve comments
  i7300_edac: Cleanup: reorganize the file contents
  i7300_edac: Properly detect channel on CE errors
  i7300_edac: enrich FBD error info for corrected errors
  i7300_edac: enrich FBD error info for fatal errors
  i7300_edac: pre-allocate a buffer used to prepare err messages
  i7300_edac: Fix MTR x4/x8 detection logic
  i7300_edac: Make the debug messages coherent with the others
  i7300_edac: Cleanup: remove get_error_info logic
  i7300_edac: Add a code to cleanup error registers
  i7300_edac: Add support for reporting FBD errors
  i7300_edac: Properly detect the type of error correction
  i7300_edac: Detect if the device is on single mode
  i7300_edac: Adds detection for enhanced scrub mode on x8
  i7300_edac: Clear the error bit after reading
  i7300_edac: Add error detection code for global errors
  ...
2010-10-24 13:06:57 -07:00
Linus Torvalds 76c39e4fef Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6: (27 commits)
  SLUB: Fix memory hotplug with !NUMA
  slub: Move functions to reduce #ifdefs
  slub: Enable sysfs support for !CONFIG_SLUB_DEBUG
  SLUB: Optimize slab_free() debug check
  slub: Move NUMA-related functions under CONFIG_NUMA
  slub: Add lock release annotation
  slub: Fix signedness warnings
  slub: extract common code to remove objects from partial list without locking
  SLUB: Pass active and inactive redzone flags instead of boolean to debug functions
  slub: reduce differences between SMP and NUMA
  Revert "Slub: UP bandaid"
  percpu: clear memory allocated with the km allocator
  percpu: use percpu allocator on UP too
  percpu: reduce PCPU_MIN_UNIT_SIZE to 32k
  vmalloc: pcpu_get/free_vm_areas() aren't needed on UP
  SLUB: Fix merged slab cache names
  Slub: UP bandaid
  slub: fix SLUB_RESILIENCY_TEST for dynamic kmalloc caches
  slub: Fix up missing kmalloc_cache -> kmem_cache_node case for memoryhotplug
  slub: Add dummy functions for the !SLUB_DEBUG case
  ...
2010-10-24 12:47:55 -07:00
Linus Torvalds 1765a1fe5d Merge branch 'kvm-updates/2.6.37' of git://git.kernel.org/pub/scm/virt/kvm/kvm
* 'kvm-updates/2.6.37' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (321 commits)
  KVM: Drop CONFIG_DMAR dependency around kvm_iommu_map_pages
  KVM: Fix signature of kvm_iommu_map_pages stub
  KVM: MCE: Send SRAR SIGBUS directly
  KVM: MCE: Add MCG_SER_P into KVM_MCE_CAP_SUPPORTED
  KVM: fix typo in copyright notice
  KVM: Disable interrupts around get_kernel_ns()
  KVM: MMU: Avoid sign extension in mmu_alloc_direct_roots() pae root address
  KVM: MMU: move access code parsing to FNAME(walk_addr) function
  KVM: MMU: audit: check whether have unsync sps after root sync
  KVM: MMU: audit: introduce audit_printk to cleanup audit code
  KVM: MMU: audit: unregister audit tracepoints before module unloaded
  KVM: MMU: audit: fix vcpu's spte walking
  KVM: MMU: set access bit for direct mapping
  KVM: MMU: cleanup for error mask set while walk guest page table
  KVM: MMU: update 'root_hpa' out of loop in PAE shadow path
  KVM: x86 emulator: Eliminate compilation warning in x86_decode_insn()
  KVM: x86: Fix constant type in kvm_get_time_scale
  KVM: VMX: Add AX to list of registers clobbered by guest switch
  KVM guest: Move a printk that's using the clock before it's ready
  KVM: x86: TSC catchup mode
  ...
2010-10-24 12:47:25 -07:00
Linus Torvalds bdaf12b412 Merge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  i2c-viapro: Don't log nacks
  i2c/pca954x: Remove __devinit and __devexit from probe and remove functions
  MAINTAINERS: Add maintainer for PCA9541 I2C bus master selector driver
  i2c/mux: Driver for PCA9541 I2C Master Selector
  i2c: Optimize function i2c_detect()
  i2c: Discard warning message on device instantiation from user-space
  i2c-amd8111: Add proper error handling
  i2c: Change to new flag variable
  i2c: Remove unneeded inclusions of <linux/i2c-id.h>
  i2c: Let i2c_parent_is_i2c_adapter return the parent adapter
  i2c: Simplify i2c_parent_is_i2c_adapter
  i2c-pca-platform: Change device name of request_irq
  i2c: Fix Kconfig dependencies
2010-10-24 12:46:24 -07:00
Linus Torvalds 7c024e9534 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (47 commits)
  HID: fix mismerge in hid-lg
  HID: hidraw: fix window in hidraw_release
  HID: hid-sony: override usbhid_output_raw_report for Sixaxis
  HID: add absolute axis resolution calculation
  HID: force feedback support for Logitech RumblePad gamepad
  HID: support STmicroelectronics and Sitronix with hid-stantuml driver
  HID: magicmouse: Adjust major / minor axes to scale
  HID: Fix for problems with eGalax/DWAV multi-touch-screen
  HID: waltop: add support for Waltop Slim Tablet 12.1 inch
  HID: add NOGET quirk for AXIS 295 Video Surveillance Joystick
  HID: usbhid: remove unused hiddev_driver
  HID: magicmouse: Use hid-input parsing rather than bypassing it
  HID: trivial formatting fix
  HID: Add support for Logitech Speed Force Wireless gaming wheel
  HID: don't Send Feature Reports on Interrupt Endpoint
  HID: 3m: Adjust major / minor axes to scale
  HID: 3m: Correct touchscreen emulation
  HID: 3m: Convert to MT slots
  HID: 3m: Output proper orientation range
  HID: 3m: Adjust to sequential MT HID protocol
  ...
2010-10-24 12:44:59 -07:00
Linus Torvalds 188e213dbc Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: Makefile - replace the use of <module>-objs with <module>-y
  crypto: hifn_795x - use cancel_delayed_work_sync()
  crypto: talitos - sparse check endian fixes
  crypto: talitos - fix checkpatch warning
  crypto: talitos - fix warning: 'alg' may be used uninitialized in this function
  crypto: cryptd - Adding the AEAD interface type support to cryptd
  crypto: n2_crypto - Niagara2 driver needs to depend upon CRYPTO_DES
  crypto: Kconfig - update broken web addresses
  crypto: omap-sham - Adjust DMA parameters
  crypto: fips - FIPS requires algorithm self-tests
  crypto: omap-aes - OMAP2/3 AES hw accelerator driver
  crypto: updates to enable omap aes
  padata: add missing __percpu markup in include/linux/padata.h
  MAINTAINERS: Add maintainer entries for padata/pcrypt
2010-10-24 12:44:34 -07:00
Pekka Enberg 6d4121f6c2 Merge branch 'master' into for-linus
Conflicts:
	include/linux/percpu.h
	mm/percpu.c
2010-10-24 19:57:05 +03:00
Jean Delvare bf5d95c826 i2c-viapro: Don't log nacks
Transactions not acked can happen every now and then, in particular
during device detection, and various transaction types can be used for
this purpose. So stop logging this event, except when debugging is
enabled. This is what other similar drivers (e.g. i2c-i801 or
i2c-piix4) do.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-10-24 18:16:59 +02:00
Guenter Roeck db79f2a1d2 i2c/pca954x: Remove __devinit and __devexit from probe and remove functions
The underlying I2C adapter may or may not be present when this driver
gets initialized, and may disappear later, so there is no safe time at
which the probe and remove functions can be discarded.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-10-24 18:16:59 +02:00
Guenter Roeck 5ce914a896 MAINTAINERS: Add maintainer for PCA9541 I2C bus master selector driver
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-10-24 18:16:59 +02:00
Guenter Roeck ae63b13bbe i2c/mux: Driver for PCA9541 I2C Master Selector
This patch adds support for PCA9541, an I2C Bus Master Selector.
The driver is modeled as single channel I2C Multiplexer to be able to utilize
the I2C multiplexer framework.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Reviewed-by: Tom Grennan <tom.grennan@ericsson.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
2010-10-24 18:16:58 +02:00
Jean Delvare 51b54ba9bb i2c: Optimize function i2c_detect()
Check the class flags before allocating the temporary i2c_client
structure, to avoid allocating it when we don't need it.

Also optimize the inner loop a bit.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
2010-10-24 18:16:58 +02:00
Jean Delvare d57558d0f3 i2c: Discard warning message on device instantiation from user-space
The "new_device" sysfs interface has been there for quite some time
now, nobody complained about it so it must be good enough. Time to
remove the warning and call it stable.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Michael Lawnick <ml.lawnick@gmx.de>
2010-10-24 18:16:58 +02:00
Julia Lawall 9cb2c2726e i2c-amd8111: Add proper error handling
The functions the functions amd_ec_wait_write and amd_ec_wait_read have an
unsigned return type, but return a negative constant to indicate an error
condition.

A sematic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@exists@
identifier f;
constant C;
@@

 unsigned f(...)
 { <+...
*  return -C;
 ...+> }
// </smpl>

Fixing amd_ec_wait_write and amd_ec_wait_read leads to the need to adjust
the return type of the functions amd_ec_write and amd_ec_read, which are
the only functions that call amd_ec_wait_write and amd_ec_wait_read.
amd_ec_write and amd_ec_read, in turn, are only called from within the
function amd8111_access, which already returns a signed typed value.  Each
of the calls to amd_ec_write and amd_ec_read are updated using the
following semantic patch:

// <smpl>
@@
@@

+ status = amd_ec_write
- amd_ec_write
  (...);
+ if (status) return status;

@@
@@

+ status = amd_ec_read
- amd_ec_read
  (...);
+ if (status) return status;
// </smpl>

The patch also adds the declaration of the status variable.

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-10-24 18:16:58 +02:00
matt mooney ef9d9b8fb6 i2c: Change to new flag variable
Replace EXTRA_CFLAGS with ccflags-y.

Signed-off-by: matt mooney <mfm@muteddisk.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-10-24 18:16:58 +02:00
Jean Delvare a8d7be818f i2c: Remove unneeded inclusions of <linux/i2c-id.h>
These drivers don't use anything which is defined in <linux/i2c-id.h>.
This header file was never meant to be included directly anyway, and
will be deleted soon.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Ben Dooks <ben-linux@fluff.org>
Acked-by: Dave Airlie <airlied@linux.ie>
Cc: Hans Verkuil <hverkuil@xs4all.nl>
2010-10-24 18:16:58 +02:00
Jean Delvare 97cc4d49cf i2c: Let i2c_parent_is_i2c_adapter return the parent adapter
This makes the calling site's code clearer IMHO.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Michael Lawnick <ml.lawnick@gmx.de>
2010-10-24 18:16:57 +02:00
Jean Delvare d582963a02 i2c: Simplify i2c_parent_is_i2c_adapter
Only i2c devices can have their type set to i2c_adapter_type, so
testing the bus type is redundant.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Michael Lawnick <ml.lawnick@gmx.de>
2010-10-24 18:16:57 +02:00
Nobuhiro Iwamatsu 323584436d i2c-pca-platform: Change device name of request_irq
i2c->adap.name shouldn't be used in request_irq.
Instead the driver name "i2c-pca-platform" should be used.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: stable@kernel.org
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-10-24 18:16:57 +02:00
Jean Delvare 0a57274ea0 i2c: Fix Kconfig dependencies
drivers/i2c/algos/Kconfig makes all the algorithms dependent on
!I2C_HELPER_AUTO, which triggers a Kconfig warning about broken
dependencies when some driver selects one of the algorithms. Ideally
we would make only the prompts dependent on !I2C_HELPER_AUTO, however
Kconfig doesn't currently support that. So we have to redefine the
symbols separately for the I2C_HELPER_AUTO=y case.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Michal Marek <mmarek@suse.cz>
2010-10-24 18:16:57 +02:00
Jan Kiszka 2a31339aa0 KVM: Drop CONFIG_DMAR dependency around kvm_iommu_map_pages
We also have to call kvm_iommu_map_pages for CONFIG_AMD_IOMMU. So drop
the dependency on Intel IOMMU, kvm_iommu_map_pages will be a nop anyway
if CONFIG_IOMMU_API is not defined.

KVM-Stable-Tag.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:53:15 +02:00
Jan Kiszka d7a79b6c80 KVM: Fix signature of kvm_iommu_map_pages stub
Breaks otherwise if CONFIG_IOMMU_API is not set.

KVM-Stable-Tag.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:53:15 +02:00
Huang Ying 77db5cbd29 KVM: MCE: Send SRAR SIGBUS directly
Originally, SRAR SIGBUS is sent to QEMU-KVM via touching the poisoned
page. But commit 9605456919 prevents the
signal from being sent. So now the signal is sent via
force_sig_info_fault directly.

[marcelo: use send_sig_info instead]

Reported-by: Dean Nelson <dnelson@redhat.com>
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:53:15 +02:00
Huang Ying 5854dbca9b KVM: MCE: Add MCG_SER_P into KVM_MCE_CAP_SUPPORTED
Now we have MCG_SER_P (and corresponding SRAO/SRAR MCE) support in
kernel and QEMU-KVM, the MCG_SER_P should be added into
KVM_MCE_CAP_SUPPORTED to make all these code really works.

Reported-by: Dean Nelson <dnelson@redhat.com>
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:53:15 +02:00
Nicolas Kaiser 9611c18777 KVM: fix typo in copyright notice
Fix typo in copyright notice.

Signed-off-by: Nicolas Kaiser <nikai@nikai.net>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:53:14 +02:00
Avi Kivity 395c6b0a9d KVM: Disable interrupts around get_kernel_ns()
get_kernel_ns() wants preemption disabled.  It doesn't make a lot of sense
during the get/set ioctls (no way to make them non-racy) but the callee wants
it.

Signed-off-by: Avi Kivity <avi@redhat.com>
2010-10-24 10:53:14 +02:00
Avi Kivity 7ebaf15eef KVM: MMU: Avoid sign extension in mmu_alloc_direct_roots() pae root address
Signed-off-by: Avi Kivity <avi@redhat.com>
2010-10-24 10:53:14 +02:00
Xiao Guangrong 3377078027 KVM: MMU: move access code parsing to FNAME(walk_addr) function
Move access code parsing from caller site to FNAME(walk_addr) function

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2010-10-24 10:53:14 +02:00
Xiao Guangrong 6903074c36 KVM: MMU: audit: check whether have unsync sps after root sync
After root synced, all unsync sps are synced, this patch add a check to make
sure it's no unsync sps in VCPU's page table

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2010-10-24 10:53:14 +02:00
Xiao Guangrong 38904e1287 KVM: MMU: audit: introduce audit_printk to cleanup audit code
Introduce audit_printk, and record audit point instead audit name

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2010-10-24 10:53:13 +02:00
Xiao Guangrong c42fffe3a3 KVM: MMU: audit: unregister audit tracepoints before module unloaded
fix:

Call Trace:
 [<ffffffffa01e46ba>] ? kvm_mmu_pte_write+0x229/0x911 [kvm]
 [<ffffffffa01c6ba9>] ? gfn_to_memslot+0x39/0xa0 [kvm]
 [<ffffffffa01c6c26>] ? mark_page_dirty+0x16/0x2e [kvm]
 [<ffffffffa01c6d6f>] ? kvm_write_guest_page+0x67/0x7f [kvm]
 [<ffffffff81066fbd>] ? local_clock+0x2a/0x3b
 [<ffffffffa01d52ce>] emulator_write_phys+0x46/0x54 [kvm]
 ......
Code:  Bad RIP value.
RIP  [<ffffffffa0172056>] 0xffffffffa0172056
 RSP <ffff880134f69a70>
CR2: ffffffffa0172056

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2010-10-24 10:53:13 +02:00
Xiao Guangrong 98224bf1d1 KVM: MMU: audit: fix vcpu's spte walking
After nested nested paging, it may using long mode to shadow 32/PAE paging
guest, so this patch fix it

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2010-10-24 10:53:12 +02:00
Xiao Guangrong 33f91edb92 KVM: MMU: set access bit for direct mapping
Set access bit while setup up direct page table if it's nonpaing or npt enabled,
it's good for CPU's speculate access

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2010-10-24 10:53:11 +02:00
Xiao Guangrong 20bd40dc64 KVM: MMU: cleanup for error mask set while walk guest page table
Small cleanup for set page fault error code

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2010-10-24 10:53:10 +02:00
Xiao Guangrong 6292757fb0 KVM: MMU: update 'root_hpa' out of loop in PAE shadow path
The value of 'vcpu->arch.mmu.pae_root' is not modified, so we can update
'root_hpa' out of the loop.

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2010-10-24 10:53:09 +02:00
Sheng Yang 7129eecac1 KVM: x86 emulator: Eliminate compilation warning in x86_decode_insn()
Eliminate:
arch/x86/kvm/emulate.c:801: warning: ‘sv’ may be used uninitialized in this
function

on gcc 4.1.2

Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:53:09 +02:00
Jan Kiszka 50933623e5 KVM: x86: Fix constant type in kvm_get_time_scale
Older gcc versions complain about the improper type (for x86-32), 4.5
seems to fix this silently. However, we should better use the right type
initially.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2010-10-24 10:53:08 +02:00
Jan Kiszka 07d6f555d5 KVM: VMX: Add AX to list of registers clobbered by guest switch
By chance this caused no harm so far. We overwrite AX during switch
to/from guest context, so we must declare this.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2010-10-24 10:53:07 +02:00