Stefan Schmidt [Thu, 10 Jul 2008 13:32:54 +0000 (14:32 +0100)]
[ARM] 5169/1: Defconfig for the EZX machines
This defconfig enables all currently available features. It also builds one
zImage which runs on all machines.
Signed-off-by: Antonio Ospite <ao2@openezx.org> Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Stefan Schmidt [Wed, 9 Jul 2008 07:08:17 +0000 (08:08 +0100)]
[ARM] 5162/1: Common code for the Motorola EZX GSM phones
Common code for the different EZX GSM phones. Functions to control framebuffer,
backlight power, OHCI and UART init.
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org> Signed-off-by: Daniel Ribeiro <drwyrm@gmail.com> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Stefan Schmidt [Wed, 9 Jul 2008 07:08:50 +0000 (08:08 +0100)]
[ARM] 5161/1: Maintainer entries for the Motorola EZX GSM mobile phones
Maintainer entries for the Motorola EZX GSM mobile phones.
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org> Signed-off-by: Daniel Ribeiro <drwyrm@gmail.com> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Marek Vašut [Mon, 7 Jul 2008 16:31:58 +0000 (17:31 +0100)]
[ARM] 5155/1: PalmTX battery monitor
This patch adds battery monitoring driver for PalmTX.
It can read voltage from the battery and temperature.
It also monitors charging/discharging status.
Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Marek Vašut [Mon, 7 Jul 2008 16:25:46 +0000 (17:25 +0100)]
[ARM] 5153/1: Add support for PalmTX handheld computer
PalmTX is PXA27x based device with wifi, bluetooth,
touchscreen, sdio slot, irda, keypad, nand flash,
pxa framebuffer, serial and usb gadget interface.
Supported by this patch is pxafb, touchscreen, irda,
keypad and sdio slot.
Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Ian Molton [Tue, 8 Jul 2008 09:32:50 +0000 (10:32 +0100)]
Clocklib: Fix SA1111 clock name mess.
This patch uses the ability of PXA's clocklib to alias clock to resolve the
problem caused by sharing the SA1111 IO controller between PXA and SA1100
architectures, which have differing GPIO numbering.
Mike Rapoport [Tue, 17 Jun 2008 08:50:06 +0000 (09:50 +0100)]
[ARM] 5107/1: Add maintainer entries for the CompuLab CM-X270/EM-X270 machines
Add maintainer entries for the CompuLab CM-X270/EM-X270 machines
Signed-off-by: Mike Rapoport <mike@compulab.co.il> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Mike Rapoport [Tue, 17 Jun 2008 11:29:58 +0000 (12:29 +0100)]
[ARM] 5103/2: CM-X270: update core platform support
Convert CM-X270 pin configuration to use MFP tables.
Make device initialization dependent on respective driver CONFIG_ value (like
in zylonite).
Cleanup includes
Signed-off-by: Mike Rapoport <mike@compulab.co.il> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Mike Rapoport [Mon, 16 Jun 2008 07:16:46 +0000 (08:16 +0100)]
[ARM] 5101/2: EM-X270 updates
Convert EM-X270 pin configuration to use MFP tables and gpio library
Make device initialization dependent on respective driver CONFIG_ value (like
in zylonite)
Add keypad and gpio_key devices
Signed-off-by: Mike Rapoport <mike@compulab.co.il> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Philipp Zabel [Mon, 30 Jun 2008 17:11:55 +0000 (18:11 +0100)]
[ARM] 5138/1: magician: set pwm-backlight .id = -1
There will always be only one pwm-backlight on this device.
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Philipp Zabel [Mon, 30 Jun 2008 17:11:35 +0000 (18:11 +0100)]
[ARM] 5137/1: magician: MACH_MAGICIAN doesn't need to depend on ARCH_PXA
It is only defined inside an "if ARCH_PXA ... endif" block, so the
depends on is not needed.
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>? Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Philipp Zabel [Thu, 26 Jun 2008 20:04:31 +0000 (21:04 +0100)]
[ARM] 5126/1: magician: remove superfluous mtd includes
These were only needed for hardcoded flash partition tables, which were
never submitted. It is better to have the bootloader pass the partition
table to the kernel instead.
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Philipp Zabel [Thu, 26 Jun 2008 20:03:54 +0000 (21:03 +0100)]
[ARM] 5125/1: magician: move gpio pin configuration into __initdata section
The pin configuration array is only used during board init.
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[ARM] 5095/2: pcm990: switch from pxa_gpio_mode to pxa2xx_mfp_config
pxa_gpio_mode() is deprecated, use the new pxa2xx_mfp_config() function to
configure GPIOs in pcm990 platform code. Convert "array, ARRAY_SIZE(array)"
to "ARRAY_AND_SIZE(array)" while at it.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[ARM] 5143/1: pxa: further cleanup PXA Kconfig by removing one
unnecessary menu level
Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[ARM] 5142/1: pxa: move move zaurus declarations to proper place
Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[ARM] 5088/3: pxa2xx: add pxa2xx_set_spi_info to register pxa2xx-spi platform devices
Add a function to dynamically allocate and register pxa2xx-spi platform
devices, to be used by PXA2xx and PXA3xx based systems. Switch pcm027 and
lubbock to use it.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@pengutronix.de> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Mark Brown [Tue, 10 Jun 2008 09:48:25 +0000 (10:48 +0100)]
[ARM] 5084/1: zylonite: Register AC97 device
The Zylonite has an AC97 subsystem on it so register the AC97 controller
device.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Mark Brown [Tue, 10 Jun 2008 11:30:05 +0000 (12:30 +0100)]
[ARM] 5085/2: PXA: Move AC97 over to the new central device declaration model
As well as moving all the device declarations to a single one in devices.c
this causes all platforms to register the I/O and interrupt resources for
the AC97 controller.
Cc: eric miao <eric.miao@marvell.com> Cc: Mike Rapoport <mike@compulab.co.il> Cc: Lennert Buytenhek <buytenh@wantstofly.org> Cc: Jürgen Schindele <linux@schindele.name> Cc: Juergen Beisert <jbe@pengutronix.de> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Philipp Zabel [Sun, 22 Jun 2008 22:36:39 +0000 (23:36 +0100)]
[ARM] 5120/1: pxa: correct platform driver names for PXA25x and PXA27x UDC drivers
The pxa2xx_udc.c driver is renamed to pxa25x_udc.c (the platform
driver name changes from pxa2xx-udc to pxa25x-udc) and the
platform driver name of pxa27x_udc.c is fixed to pxa27x-udc.
pxa_device_udc in devices.c is split into pxa25x and pxa27x flavors
and the pxa27x_device_udc is enabled in pxa27x.c.
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Acked-by: Nicolas Pitre <nico@cam.org> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Including from Ian Molton:
Fixes for mistakes left over from the PXA2{5,7}X UDC split.
Signed-off-by: Ian Molton <spyro@f2s.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Mon, 30 Jun 2008 18:47:59 +0000 (19:47 +0100)]
[ARM] pxa: allow clk aliases
We need to support more than one name+device for a struct clk for a
small number of peripherals. We do this by re-using struct clk alias
to another struct clk - IOW, if we find that the entry we're using is
an alias, we return the aliased entry not the one we found.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Stefan Schmidt [Fri, 6 Jun 2008 09:12:37 +0000 (10:12 +0100)]
[ARM] 5079/1: Warn people when using pxa2xx-gpio.h
Warn people when using pxa2xx-gpio.h as it is only here for backwards
compatibility. The new mfp-pxa2[57]x.h and the relevant API should be used
instead.
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Philipp Zabel [Mon, 30 Jun 2008 17:08:11 +0000 (18:08 +0100)]
[ARM] 5135/1: pxa: drop superfluous asm/arch/pxa2xx-gpio.h includes
Both i2c-pxa.c and irq.c still include pxa2xx-gpio.h although is is not
needed anymore.
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Jaya Kumar [Sun, 22 Jun 2008 03:27:28 +0000 (04:27 +0100)]
[ARM] 5118/1: pxafb: add exit and remove handlers
This patch adds exit and remove handlers to pxafb so that it can be loaded
and unloaded as a module.
Signed-off-by: Jaya Kumar <jayakumar.lkml@gmail.com> Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
eric miao [Mon, 26 May 2008 02:28:09 +0000 (03:28 +0100)]
[ARM] 5063/1: pxa: add clk support for pxa2xx I2S
Signed-off-by: Eric Miao <eric.miao@marvell.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[ARM] 5151/1: Tosa: remove double inclusion of linux/delay.h
The patch applies to the linux-next tree.
Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com> Acked-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Dmitry Baryshkov [Fri, 27 Jun 2008 09:37:19 +0000 (10:37 +0100)]
[ARM] 5127/1: Core MFD support
This patch provides a common subdevice registration system for MFD type
chips, using platfrom device.
Signed-off-by: Ian Molton <spyro@f2s.com> Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Dmitry Baryshkov [Sat, 14 Jun 2008 10:42:57 +0000 (11:42 +0100)]
[ARM] 5098/1: fix sound/soc/pxa/tosa.c to new gpio api
The sound/soc/pxa/tosa.c contains dependencies on parts that never
ever hit mainline. Replace them with current support for tc6393xb.
Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Dmitry Baryshkov [Thu, 12 Jun 2008 10:42:07 +0000 (11:42 +0100)]
[ARM] 5083/2: Tosa: fix IrDA transciver powerup.
On tosa the tranciver LED isn't powered down if
the GPIO47 (STUART_TX) isn't configured as low-level.
Power it down if IrDA is off to save a bit of power.
Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
eric miao [Mon, 26 May 2008 02:28:50 +0000 (03:28 +0100)]
[ARM] 5064/1: pxa: explicitly specify tosa keyboard GPIOs' low power states to DRIVE_LOW
Signed-off-by: Eric Miao <eric.miao@marvell.com> Acked-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Dmitry Baryshkov [Thu, 22 May 2008 15:21:48 +0000 (16:21 +0100)]
[ARM] 5048/2: Clean up tosa and spitz resetting
Use new reset_gpio to reset tosa and spitz PDAs.
Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Philipp Zabel [Thu, 29 May 2008 20:18:07 +0000 (21:18 +0100)]
[ARM] 5069/1: pxa: include pxa2xx-regs.h in reset.c for RSCR
The RCSR definition was moved into pxa2xx-regs.h.
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Acked-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Dmitry Baryshkov [Thu, 22 May 2008 15:20:18 +0000 (16:20 +0100)]
[ARM] 5047/2: Support resetting by asserting GPIO pin
This adds support for resetting via assertion of GPIO pin.
This e.g. is used on Sharp Zaurus SL-6000.
Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[ARM] 5094/1: pcm990: Add framebuffer and backlight support
PCM990 boards can be assembled with either a Sharp STN or a NEC TFT LCD. This
patch adds support for these displays and for the backlight, using the pwm_bl
driver.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Philipp Zabel [Thu, 22 May 2008 13:20:01 +0000 (14:20 +0100)]
[ARM] 5045/1: magician: use the pwm_bl driver for the LCD backlight
magician has a GPIO that modifies the brightness level additionally to
the PWM duty value. This patch makes use of the pwm_bl notify callback
to present userspace with a single brightness scale.
This gets rid of the pxa_set_cken calls and direct PWM register access.
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Robert Jarzmik [Tue, 10 Jun 2008 22:02:31 +0000 (23:02 +0100)]
[ARM] 5087/1: Get the PWM layer to handle clock enable/disable properly.
Allow pwm_enable()/pwm_disable() to be called as many times
as the driver wants (and not even count them).
The PWM model is different from things like the clock API
where we need enable counting, because PWMs have one
exclusive user per PWM whereas the clock API can have
multiple users of the same clock.
Acked-by: eric miao <eric.miao@marvell.com> Signed-off-by: Robert Jarzmik <rjarzmik@free.fr> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[ARM] 5078/1: pxa-pwm: Add missing MODULE_LICENSE to be able to build the driver
as a module
Without a GPL-compatible license this driver cannot be built as a module,
because the platform_driver_* API is only exported to GPL modules.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@pengutronix.de> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Philipp Zabel [Mon, 30 Jun 2008 17:09:03 +0000 (18:09 +0100)]
[ARM] 5136/1: pxa: fix PWM device order for pxa27x
Currently PWM0/2 (pxa27x_device_pwm0 at 0x40b00000 and 0x40b00010
are registered as as pwm_id 0 and 1, PWM1/3 (pxa27x_device_pwm1 at
0x40c00000 and 0x40c00010) are registered as pwm_id 2 and 3.
This patch corrects the pwm_ids to match the documented register names.
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Linus Torvalds [Wed, 25 Jun 2008 01:12:33 +0000 (18:12 -0700)]
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] Eliminate NULL test after alloc_bootmem in iosapic_alloc_rte()
[IA64] Handle count==0 in sn2_ptc_proc_write()
[IA64] Fix boot failure on ia64/sn2
Linus Torvalds [Wed, 25 Jun 2008 01:09:06 +0000 (18:09 -0700)]
Merge branch 'kvm-updates-2.6.26' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm
* 'kvm-updates-2.6.26' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm:
KVM: Remove now unused structs from kvm_para.h
x86: KVM guest: Use the paravirt clocksource structs and functions
KVM: Make kvm host use the paravirt clocksource structs
x86: Make xen use the paravirt clocksource structs and functions
x86: Add structs and functions for paravirt clocksource
KVM: VMX: Fix host msr corruption with preemption enabled
KVM: ioapic: fix lost interrupt when changing a device's irq
KVM: MMU: Fix oops on guest userspace access to guest pagetable
KVM: MMU: large page update_pte issue with non-PAE 32-bit guests (resend)
KVM: MMU: Fix rmap_write_protect() hugepage iteration bug
KVM: close timer injection race window in __vcpu_run
KVM: Fix race between timer migration and vcpu migration
Jie Luo [Tue, 24 Jun 2008 17:38:31 +0000 (10:38 -0700)]
enable bus mastering on i915 at resume time
On 9xx chips, bus mastering needs to be enabled at resume time for much of the
chip to function. With this patch, vblank interrupts will work as expected
on resume, along with other chip functions. Fixes kernel bugzilla #10844.
Signed-off-by: Jie Luo <clotho67@gmail.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Gerd Hoffmann [Tue, 3 Jun 2008 14:17:32 +0000 (16:17 +0200)]
x86: KVM guest: Use the paravirt clocksource structs and functions
This patch updates the kvm host code to use the pvclock structs
and functions, thereby making it compatible with Xen.
The patch also fixes an initialization bug: on SMP systems the
per-cpu has two different locations early at boot and after CPU
bringup. kvmclock must take that in account when registering the
physical address within the host.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
Gerd Hoffmann [Tue, 3 Jun 2008 14:17:29 +0000 (16:17 +0200)]
x86: Add structs and functions for paravirt clocksource
This patch adds structs for the paravirt clocksource ABI
used by both xen and kvm (pvclock-abi.h).
It also adds some helper functions to read system time and
wall clock time from a paravirtual clocksource (pvclock.[ch]).
They are based on the xen code. They are enabled using
CONFIG_PARAVIRT_CLOCK.
Subsequent patches of this series will put the code in use.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
This patch changes the computation for zero_metapath_length(), which it
renames to metapath_branch_start(). When you are extending the metadata
tree, The indirect blocks that point to the new data block must either
diverge from the existing tree either at the inode, or at the first
indirect block. They can diverge at the first indirect block because the
inode has room for 483 pointers while the indirect blocks have room for
509 pointers, so when the tree is grown, there is some free space in the
first indirect block. What metapath_branch_start() now computes is the
height where the first indirect block for the new data block is located.
It can either be 1 (if the indirect block diverges from the inode) or 2
(if it diverges from the first indirect block).
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Julia Lawall [Tue, 24 Jun 2008 08:22:05 +0000 (10:22 +0200)]
[IA64] Eliminate NULL test after alloc_bootmem in iosapic_alloc_rte()
As noted by Akinobu Mita alloc_bootmem and related functions never return
NULL and always return a zeroed region of memory. Thus a NULL test or
memset after calls to these functions is unnecessary.
Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Tony Luck <tony.luck@intel.com>
Cliff Wickman [Tue, 24 Jun 2008 17:20:06 +0000 (10:20 -0700)]
[IA64] Handle count==0 in sn2_ptc_proc_write()
The fix applied in e0c6d97c65e0784aade7e97b9411f245a6c543e7
"security hole in sn2_ptc_proc_write" didn't take into account
the case where count==0 (which results in a buffer underrun
when adding the trailing '\0'). Thanks to Andi Kleen for
pointing this out.
Signed-off-by: Cliff Wickman <cpw@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Non-PAE operation has been deprecated in Xen for a while, and is
rarely tested or used. xen-unstable has now officially dropped
non-PAE support. Since Xen/pvops' non-PAE support has also been
broken for a while, we may as well completely drop it altogether.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Avi Kivity [Tue, 24 Jun 2008 08:48:49 +0000 (11:48 +0300)]
KVM: VMX: Fix host msr corruption with preemption enabled
Switching msrs can occur either synchronously as a result of calls to
the msr management functions (usually in response to the guest touching
virtualized msrs), or asynchronously when preempting a kvm thread that has
guest state loaded. If we're unlucky enough to have the two at the same
time, host msrs are corrupted and the machine goes kaput on the next syscall.
Most easily triggered by Windows Server 2008, as it does a lot of msr
switching during bootup.
Avi Kivity [Tue, 17 Jun 2008 22:36:36 +0000 (15:36 -0700)]
KVM: ioapic: fix lost interrupt when changing a device's irq
The ioapic acknowledge path translates interrupt vectors to irqs. It
currently uses a first match algorithm, stopping when it finds the first
redirection table entry containing the vector. That fails however if the
guest changes the irq to a different line, leaving the old redirection table
entry in place (though masked). Result is interrupts not making it to the
guest.
Fix by always scanning the entire redirection table.
Avi Kivity [Thu, 12 Jun 2008 13:54:41 +0000 (16:54 +0300)]
KVM: MMU: Fix oops on guest userspace access to guest pagetable
KVM has a heuristic to unshadow guest pagetables when userspace accesses
them, on the assumption that most guests do not allow userspace to access
pagetables directly. Unfortunately, in addition to unshadowing the pagetables,
it also oopses.
This never triggers on ordinary guests since sane OSes will clear the
pagetables before assigning them to userspace, which will trigger the flood
heuristic, unshadowing the pagetables before the first userspace access. One
particular guest, though (Xenner) will run the kernel in userspace, triggering
the oops. Since the heuristic is incorrect in this case, we can simply
remove it.
Marcelo Tosatti [Wed, 11 Jun 2008 23:32:40 +0000 (20:32 -0300)]
KVM: MMU: large page update_pte issue with non-PAE 32-bit guests (resend)
kvm_mmu_pte_write() does not handle 32-bit non-PAE large page backed
guests properly. It will instantiate two 2MB sptes pointing to the same
physical 2MB page when a guest large pte update is trapped.
Instead of duplicating code to handle this, disallow directory level
updates to happen through kvm_mmu_pte_write(), so the two 2MB sptes
emulating one guest 4MB pte can be correctly created by the page fault
handling path.
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
projects / linux-2.6 / log