aboutsummaryrefslogtreecommitdiff
AgeCommit message (Collapse)Author
2009-02-17Merge branch 'hwmon-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6Linus Torvalds
* 'hwmon-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6: MAINTAINERS: Switch hdaps to Frank Seidel hwmon: Fix ACPI resource check error handling hwmon: (f71882fg) Hide misleading error message
2009-02-17Merge branch 'for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: V4L/DVB (10626): ivtv: fix regression in get sliced vbi format V4L/DVB (10625): ivtv: fix decoder crash regression V4L/DVB (10619): gspca - main: Destroy the URBs at disconnection time. V4L/DVB (10572): Revert commit dda06a8e4610757def753ee3a541a0b1a1feb36b V4L/DVB (10533): fix LED status output V4L/DVB (10532): Correction of Stereo detection/setting and signal strength indication V4L/DVB (10527): tuner: fix TUV1236D analog/digital setup V4L/DVB (10516a): zoran: Update MAINTAINERS entry
2009-02-17Merge branch 'for-linus' of ↵Linus Torvalds
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: HID: fix bus endianity in file2alias HID: move tmff and zpff devices from ignore_list to blacklist HID: unlock properly on error paths in hidraw_ioctl() HID: blacklist Powercom USB UPS
2009-02-17Merge branch 'for-linus' of git://git.o-hand.com/linux-mfdLinus Torvalds
* 'for-linus' of git://git.o-hand.com/linux-mfd: mfd: Fix sm501_register_gpio section mismatch mfd: fix sm501 section mismatches mfd: terminate pcf50633 i2c_device_id list mfd: Ensure all WM8350 IRQs are masked at startup mfd: fix htc-egpio iomem resource handling using resource_size mfd: Fix TWL4030 build on some ARM variants mfd: wm8350 tries reaches -1 mfd: Mark WM835x USB_SLV_500MA bit as accessible mfd: Improve diagnostics for WM8350 ID register probe mfd: Initialise WM8350 interrupts earlier mfd: Fix egpio kzalloc return test
2009-02-17Merge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdogLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog: [WATCHDOG] iTCO_wdt: fix SMI_EN regression 2
2009-02-17Merge branch 'for-upstream' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dvrabel/uwb * 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/dvrabel/uwb: wusb: whci-hcd: always lock whc->lock with interrupts disabled
2009-02-17FRV: __pte_to_swp_entry doesn't expand correctlyRoel Kluin
The macro doesn't expand correctly when its parameter isn't 'pte'. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-17Merge branch 'for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: Fix NULL dereference in ext4_ext_migrate()'s error handling ext4: Implement range_cyclic in ext4_da_writepages instead of write_cache_pages ext4: Initialize preallocation list_head's properly ext4: Fix lockdep warning ext4: Fix to read empty directory blocks correctly in 64k jbd2: Avoid possible NULL dereference in jbd2_journal_begin_ordered_truncate() Revert "ext4: wait on all pending commits in ext4_sync_fs()" jbd2: Fix return value of jbd2_journal_start_commit()
2009-02-17Merge branch 'kvm-updates/2.6.29' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
* 'kvm-updates/2.6.29' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: VMX: Flush volatile msrs before emulating rdmsr KVM: Fix assigned devices circular locking dependency KVM: x86: fix LAPIC pending count calculation KVM: Fix INTx for device assignment KVM: MMU: Map device MMIO as UC in EPT KVM: x86: disable kvmclock on non constant TSC hosts KVM: PIT: fix i8254 pending count read KVM: Fix racy in kvm_free_assigned_irq KVM: Add kvm_arch_sync_events to sync with asynchronize events KVM: mmu_notifiers release method KVM: Avoid using CONFIG_ in userspace visible headers KVM: ia64: fix fp fault/trap handler
2009-02-17Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linusLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus: cpumask: Use cpu_*_mask accessors code: alpha cpumask: fix powernow-k8: partial revert of 2fdf66b491ac706657946442789ec644cc317e1a
2009-02-17Fix Intel IOMMU write-buffer flushingDavid Woodhouse
This is the cause of the DMA faults and disk corruption that people have been seeing. Some chipsets neglect to report the RWBF "capability" -- the flag which says that we need to flush the chipset write-buffer when changing the DMA page tables, to ensure that the change is visible to the IOMMU. Override that bit on the affected chipsets, and everything is happy again. Thanks to Chris and Bhavesh and others for helping to debug. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Tested-by: Chris Wright <chrisw@sous-sol.org> Reviewed-by: Bhavesh Davda <bhavesh@vmware.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-17Fix incomplete __mntput lockingAl Viro
Getting this wrong caused WARNING: at fs/namespace.c:636 mntput_no_expire+0xac/0xf2() due to optimistically checking cpu_writer->mnt outside the spinlock. Here's what we really want: * we know that nobody will set cpu_writer->mnt to mnt from now on * all changes to that sucker are done under cpu_writer->lock * we want the laziest equivalent of spin_lock(&cpu_writer->lock); if (likely(cpu_writer->mnt != mnt)) { spin_unlock(&cpu_writer->lock); continue; } /* do stuff */ that would make sure we won't miss earlier setting of ->mnt done by another CPU. Anyway, for now we just move the spin_lock() earlier and move the test into the properly locked region. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Reported-and-tested-by: Li Zefan <lizf@cn.fujitsu.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-17MAINTAINERS: Switch hdaps to Frank SeidelFrank Seidel
As Rovert Love doesn't any more seem to be realy active on hdaps driver i'll happily take it over. Signed-off-by: Frank Seidel <frank@f-seidel.de> Cc: Robert Love <rlove@rlove.org> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2009-02-17hwmon: Fix ACPI resource check error handlingHans de Goede
This patch fixes a number of cases where things were not properly cleaned up when acpi_check_resource_conflict() returned an error, causing oopses such as the one reported here: https://bugzilla.redhat.com/show_bug.cgi?id=483208 Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2009-02-17hwmon: (f71882fg) Hide misleading error messageJean Delvare
If the F71882FG chip is at address 0x4e, then the probe at 0x2e will fail with the following message in the logs: f71882fg: Not a Fintek device This is misleading because there is a Fintek device, just at a different address. So I propose to degrade this message to a debug message. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Hans de Goede <hdegoede@redhat.com>
2009-02-17V4L/DVB (10626): ivtv: fix regression in get sliced vbi formatHans Verkuil
The new v4l2_subdev_call used s_fmt instead of g_fmt. Thanks-to: Andy Walls <awalls@radix.net> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-02-17V4L/DVB (10625): ivtv: fix decoder crash regressionHans Verkuil
The video_ioctl2 conversion of ivtv in kernel 2.6.27 introduced a bug causing decoder commands to crash. The decoder commands should have been handled from the video_ioctl2 default handler, ensuring correct mapping of the argument between user and kernel space. Unfortunately they ended up before the video_ioctl2 call, causing random crashes. Thanks to hannes@linus.priv.at for testing and helping me track down the cause! Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-02-17V4L/DVB (10619): gspca - main: Destroy the URBs at disconnection time.Adam Baker
If a device using the gspca framework is unplugged while it is still streaming then the call that is used to free the URBs that have been allocated occurs after the pointer it uses becomes invalid at the end of gspca_disconnect. Make another cleanup call in gspca_disconnect while the pointer is still valid (multiple calls are OK as destroy_urbs checks for pointers already being NULL. Signed-off-by: Adam Baker <linux@baker-net.org.uk> Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-02-17V4L/DVB (10572): Revert commit dda06a8e4610757def753ee3a541a0b1a1feb36bMauro Carvalho Chehab
On Mon, 02 Feb 2009, Hartmut wrote: This change set is wrong. The affected functions cannot be called from an interrupt context, because they may process large buffers. In this case, interrupts are disabled for a long time. Functions, like dvb_dmx_swfilter_packets(), could be called only from a tasklet. This change set does hide some strong design bugs in dm1105.c and au0828-dvb.c. Please revert this change set and do fix the bugs in dm1105.c and au0828-dvb.c (and other files). On Sun, 15 Feb 2009, Oliver Endriss wrote: This changeset _must_ be reverted! It breaks all kernels since 2.6.27 for applications which use DVB and require a low interrupt latency. It is a very bad idea to call the demuxer to process data buffers with interrupts disabled! On Mon, 16 Feb 2009, Trent Piepho wrote: I agree, this is bad. The demuxer is far too much work to be done with IRQs off. IMHO, even doing it under a spin-lock is excessive. It should be a mutex. Drivers should use a work-queue to feed the demuxer. Thank you for testing this changeset and discovering the issues on it. Cc: Trent Piepho <xyzzy@speakeasy.org> Cc: Hartmut <e9hack@googlemail.com> Cc: Oliver Endriss <o.endriss@gmx.de> Cc: Andreas Oberritter <obi@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-02-17V4L/DVB (10533): fix LED status outputTobias Lorenz
This patch closes one of my todos that was since long on my list. Some people reported clicks and glitches in the audio stream, correlated to the LED color changing cycle. Thanks to Rick Bronson <rick@efn.org>. Signed-off-by: Tobias Lorenz <tobias.lorenz@gmx.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-02-17V4L/DVB (10532): Correction of Stereo detection/setting and signal strength ↵Tobias Lorenz
indication Thanks to Bob Ross <pigiron@gmx.com> - correction of stereo detection/setting - correction of signal strength indicator scaling Signed-off-by: Tobias Lorenz <tobias.lorenz@gmx.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-02-17V4L/DVB (10527): tuner: fix TUV1236D analog/digital setupMauro Carvalho Chehab
As reported by David Engel <david@istwok.net>, ATSC115 doesn't work fine with mythtv. This software opens both analog and dvb interfaces of saa7134. What happens is that some tuner commands are going to the wrong place, as shown at the logs: Feb 12 20:37:48 opus kernel: tuner-simple 1-0061: using tuner params #0 (ntsc) Feb 12 20:37:48 opus kernel: tuner-simple 1-0061: freq = 67.25 (1076), range = 0, config = 0xce, cb = 0x01 Feb 12 20:37:48 opus kernel: tuner-simple 1-0061: Freq= 67.25 MHz, V_IF=45.75 MHz, Offset=0.00 MHz, div=1808 Feb 12 20:37:48 opus kernel: tuner 1-0061: tv freq set to 67.25 Feb 12 20:37:48 opus kernel: tuner-simple 1-000a: using tuner params #0 (ntsc) Feb 12 20:37:48 opus kernel: tuner-simple 1-000a: freq = 67.25 (1076), range = 0, config = 0xce, cb = 0x01 Feb 12 20:37:48 opus kernel: tuner-simple 1-000a: Freq= 67.25 MHz, V_IF=45.75 MHz, Offset=0.00 MHz, div=1808 Feb 12 20:37:48 opus kernel: tuner-simple 1-000a: tv 0x07 0x10 0xce 0x01 Feb 12 20:37:48 opus kernel: tuner-simple 1-0061: tv 0x07 0x10 0xce 0x01 This happens due to a hack at TUV1236D analog setup, where it replaces tuner address, at 0x61 for 0x0a, in order to save a few memory bytes. The code assumes that nobody else would try to access the tuner during that setup, but the point is that there's no lock to protect such access. So, this opens the possibility of race conditions to happen. Instead of hacking tuner address, this patch uses a temporary var with the proper tuner value to be used during the setup. This should save the issue, although we should consider to write some analog/digital lock at saa7134 driver. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-02-17V4L/DVB (10516a): zoran: Update MAINTAINERS entryTrent Piepho
Ronald Bultje hasn't been maintaining the zoran driver for some time. Re-direct people to the mailing lists and web pages. MAINTAINERS | 6 +++--- Signed-off-by: Trent Piepho <xyzzy@speakeasy.org> Acked-by: Jean Delvare <khali@linux-fr.org> Acked-by: Ronald S. Bultje <rbultje@ronald.bitfreak.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-02-17HID: fix bus endianity in file2aliasJiri Slaby
Fix endianness of bus member of hid_device_id in modpost. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Reported-by: Nye Liu <nyet@mrv.com> Cc: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-02-17HID: move tmff and zpff devices from ignore_list to blacklistAnssi Hannula
The devices handled by hid-tmff and hid-zpff were added in the hid_ignore_list[] instead of hid_blacklist[] in hid-core.c, thus disabling them completely. hid_ignore_list[] causes hid layer to skip the device, while hid_blacklist[] indicates there is a specific driver in hid bus. Re-enable the devices by moving them to the correct list. Signed-off-by: Anssi Hannula <anssi.hannula@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-02-17HID: unlock properly on error paths in hidraw_ioctl()Dan Carpenter
We can't return immediately because lock_kernel() is held. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-02-17HID: blacklist Powercom USB UPSMichael Tokarev
For quite some time users with various UPSes from Powercom were forced to play magic with bind/unbind in /sys in order to be able to see the UPSes. The beasts does not work as HID devices, even if claims to do so. cypress_m8 driver works with the devices instead, creating a normal serial port with which normal UPS controlling software works. The manufacturer confirmed the upcoming models with proper HID support will have different device IDs. In any way, it's wrong to have two completely different modules for one device in kernel. Blacklist the device in HID (add it to hid_ignore_list) to stop this mess, finally. Signed-off-By: Michael Tokarev <mjt@tls.msk.ru> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-02-17mfd: Fix sm501_register_gpio section mismatchRakib Mullick
WARNING: drivers/mfd/built-in.o(.text+0x1706): Section mismatch in reference from the function sm501_register_gpio() to the function .devinit.text:sm501_gpio_register_chip() The function sm501_register_gpio() references the function __devinit sm501_gpio_register_chip(). This is often because sm501_register_gpio lacks a __devinit annotation or the annotation of sm501_gpio_register_chip is wrong. Signed-off-by: Rakib Mullick <rakib.mullick@gmail.com> Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-02-17mfd: fix sm501 section mismatchesAlexey Dobriyan
drv => driver renaming is needed otherwise modpost will spit false positives re pointing to __devinit function from regular data. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-02-17mfd: terminate pcf50633 i2c_device_id listJean Delvare
The i2c_device_id list is supposed to be zero-terminated. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Balaji Rao <balajirrao@openmoko.org> Signed-off-by: Samuel Ortiz <sameo@openedhand.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2009-02-17mfd: Ensure all WM8350 IRQs are masked at startupMark Brown
The IRQs might have been left enabled in hardware, generating spurious IRQs before the drivers have registered. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-02-17mfd: fix htc-egpio iomem resource handling using resource_sizePhilipp Zabel
Fixes an off-by-one error in the iomem resource mapping. Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-02-17mfd: Fix TWL4030 build on some ARM variantsMark Brown
Many ARM platforms do not provide a mach/cpu.h so rather than guarding the use of that header with CONFIG_ARM guard it with the guards used when testing for the OMAP variants in the body of the code. Signed-off-by: Mark Brown <broonie@sirena.org.uk> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-02-17mfd: wm8350 tries reaches -1Roel Kluin
With a postfix decrement tries will reach -1 rather than 0, so the warning will not be issued even upon timeout. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-02-17mfd: Mark WM835x USB_SLV_500MA bit as accessibleMark Brown
The code is out of sync with the silicon. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-02-17mfd: Improve diagnostics for WM8350 ID register probeMark Brown
Check the return value of the device I/O functions when reading the ID registers so we can provide a more useful diagnostic when we're having trouble talking to the device. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-02-17mfd: Initialise WM8350 interrupts earlierMark Brown
Ensure that the interrupt handling is configured before we do platform specific init. This allows the platform specific initialisation to configure things which use interrupts safely. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-02-17mfd: Fix egpio kzalloc return testJulia Lawall
Since ei is already known to be non-NULL, I assume that what was intended was to test the result of kzalloc. Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-02-16wusb: whci-hcd: always lock whc->lock with interrupts disabledDavid Vrabel
Always lock whc->lock with spin_lock_irq() or spin_lock_irqsave(). Signed-off-by: David Vrabel <david.vrabel@csr.com>
2009-02-16cpumask: Use cpu_*_mask accessors code: alphaRusty Russell
Impact: use new API, fix SMP bug. Use the new accessors rather than frobbing bits directly. This also removes the bug introduced in ee0c468b (alpha: compile fixes) which had Alpha setting bits on an on-stack cpumask, not the cpu_online_map. Cc: Richard Henderson <rth@twiddle.net> Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Mike Travis <travis@sgi.com> Acked-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Acked-by: Ingo Molnar <mingo@elte.hu>
2009-02-16cpumask: fix powernow-k8: partial revert of ↵Rusty Russell
2fdf66b491ac706657946442789ec644cc317e1a Impact: fix powernow-k8 when acpi=off (or other error). There was a spurious change introduced into powernow-k8 in this patch: so that we try to "restore" the cpus_allowed we never saved. We revert that file. See lkml "[PATCH] x86/powernow: fix cpus_allowed brokage when acpi=off" from Yinghai for the bug report. Cc: Mike Travis <travis@sgi.com> Cc: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Ingo Molnar <mingo@elte.hu>
2009-02-15ext4: Fix NULL dereference in ext4_ext_migrate()'s error handlingDan Carpenter
This was found through a code checker (http://repo.or.cz/w/smatch.git/). It looks like you might be able to trigger the error by trying to migrate a readonly file system. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2009-02-15KVM: VMX: Flush volatile msrs before emulating rdmsrAvi Kivity
Some msrs (notable MSR_KERNEL_GS_BASE) are held in the processor registers and need to be flushed to the vcpu struture before they can be read. This fixes cygwin longjmp() failure on Windows x64. Signed-off-by: Avi Kivity <avi@redhat.com>
2009-02-15KVM: Fix assigned devices circular locking dependencyMark McLoughlin
kvm->slots_lock is outer to kvm->lock, so take slots_lock in kvm_vm_ioctl_assign_device() before taking kvm->lock, rather than taking it in kvm_iommu_map_memslots(). Cc: stable@kernel.org Signed-off-by: Mark McLoughlin <markmc@redhat.com> Acked-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-02-15KVM: x86: fix LAPIC pending count calculationMarcelo Tosatti
Simplify LAPIC TMCCT calculation by using hrtimer provided function to query remaining time until expiration. Fixes host hang with nested ESX. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-02-15KVM: Fix INTx for device assignmentSheng Yang
Missing buckets and wrong parameter for free_irq() Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-02-15KVM: MMU: Map device MMIO as UC in EPTSheng Yang
Software are not allow to access device MMIO using cacheable memory type, the patch limit MMIO region with UC and WC(guest can select WC using PAT and PCD/PWT). Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-02-15KVM: x86: disable kvmclock on non constant TSC hostsMarcelo Tosatti
This is better. Currently, this code path is posing us big troubles, and we won't have a decent patch in time. So, temporarily disable it. Signed-off-by: Glauber Costa <glommer@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-02-15KVM: PIT: fix i8254 pending count readMarcelo Tosatti
count_load_time assignment is bogus: its supposed to contain what it means, not the expiration time. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-02-15KVM: Fix racy in kvm_free_assigned_irqSheng Yang
In the past, kvm_get_kvm() and kvm_put_kvm() was called in assigned device irq handler and interrupt_work, in order to prevent cancel_work_sync() in kvm_free_assigned_irq got a illegal state when waiting for interrupt_work done. But it's tricky and still got two problems: 1. A bug ignored two conditions that cancel_work_sync() would return true result in a additional kvm_put_kvm(). 2. If interrupt type is MSI, we would got a window between cancel_work_sync() and free_irq(), which interrupt would be injected again... This patch discard the reference count used for irq handler and interrupt_work, and ensure the legal state by moving the free function at the very beginning of kvm_destroy_vm(). And the patch fix the second bug by disable irq before cancel_work_sync(), which may result in nested disable of irq but OK for we are going to free it. Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-08 15:27:00 +0000