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2011-01-13Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (348 commits) ALSA: hda - Fix NULL-derefence with a single mic in STAC auto-mic detection ALSA: hda - Add missing NID 0x19 fixup for Sony VAIO ALSA: hda - Fix ALC275 enable hardware EQ for SONY VAIO ALSA: oxygen: fix Xonar DG input ALSA: hda - Fix EAPD on Lenovo NB ALC269 to low ALSA: hda - Fix missing EAPD for Acer 4930G ALSA: hda: Disable 4/6 channels on some NVIDIA GPUs. ALSA: hda - Add static_hdmi_pcm option to HDMI codec parser ALSA: hda - Don't refer ELD when unplugged ASoC: tpa6130a2: Fix compiler warning ASoC: tlv320dac33: Add DAPM selection for LOM invert ASoC: DMIC codec: Adding a generic DMIC codec ALSA: snd-usb-us122l: Fix missing NULL checks ALSA: snd-usb-us122l: Fix MIDI output ASoC: soc-cache: Fix invalid memory access during snd_soc_lzo_cache_sync() ASoC: Fix section mismatch in wm8995.c ALSA: oxygen: add S/PDIF source selection for Claro cards ALSA: oxygen: fix CD/MIDI for X-Meridian (2G) ASoC: fix migor audio build ALSA: include delay.h for msleep in Xonar DG support ...
2011-01-13Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (41 commits) fs: add documentation on fallocate hole punching Gfs2: fail if we try to use hole punch Btrfs: fail if we try to use hole punch Ext4: fail if we try to use hole punch Ocfs2: handle hole punching via fallocate properly XFS: handle hole punching via fallocate properly fs: add hole punching to fallocate vfs: pass struct file to do_truncate on O_TRUNC opens (try #2) fix signedness mess in rw_verify_area() on 64bit architectures fs: fix kernel-doc for dcache::prepend_path fs: fix kernel-doc for dcache::d_validate sanitize ecryptfs ->mount() switch afs move internal-only parts of ncpfs headers to fs/ncpfs switch ncpfs switch 9p pass default dentry_operations to mount_pseudo() switch hostfs switch affs switch configfs ...
2011-01-13Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (46 commits) hwrng: via_rng - Fix memory scribbling on some CPUs crypto: padlock - Move padlock.h into include/crypto hwrng: via_rng - Fix asm constraints crypto: n2 - use __devexit not __exit in n2_unregister_algs crypto: mark crypto workqueues CPU_INTENSIVE crypto: mv_cesa - dont return PTR_ERR() of wrong pointer crypto: ripemd - Set module author and update email address crypto: omap-sham - backlog handling fix crypto: gf128mul - Remove experimental tag crypto: af_alg - fix af_alg memory_allocated data type crypto: aesni-intel - Fixed build with binutils 2.16 crypto: af_alg - Make sure sk_security is initialized on accept()ed sockets net: Add missing lockdep class names for af_alg include: Install linux/if_alg.h for user-space crypto API crypto: omap-aes - checkpatch --file warning fixes crypto: omap-aes - initialize aes module once per request crypto: omap-aes - unnecessary code removed crypto: omap-aes - error handling implementation improved crypto: omap-aes - redundant locking is removed crypto: omap-aes - DMA initialization fixes for OMAP off mode ...
2011-01-13Merge 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: Add MCF548x watchdog driver. watchdog: add driver for the Atheros AR71XX/AR724X/AR913X SoCs watchdog: Add TCO support for nVidia chipsets watchdog: Add support for sp5100 chipset TCO watchdog: f71808e_wdt: add F71862FG, F71869 to Kconfig watchdog: iTCO_wdt: TCO Watchdog patch for Intel DH89xxCC PCH watchdog: iTCO_wdt: TCO Watchdog patch for Intel NM10 DeviceIDs watchdog: ks8695_wdt: include mach/hardware.h instead of mach/timex.h. watchdog: Propagate Book E WDT period changes to all cores watchdog: add CONFIG_WATCHDOG_NOWAYOUT support to PowerPC Book-E watchdog driver watchdog: alim7101_wdt: fix compiler warning on alim7101_pci_tbl watchdog: alim1535_wdt: fix compiler warning on ali_pci_tbl watchdog: Fix reboot on W83627ehf chipset. watchdog: Add watchdog support for W83627DHG chip watchdog: f71808e_wdt: Add Fintek F71869 watchdog watchdog: add f71862fg support watchdog: clean-up f71808e_wdt.c
2011-01-13Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6: (45 commits) regulator: missing index in PTR_ERR() in isl6271a_probe() regulator: Assign return value of mc13xxx_reg_rmw to ret regulator: Add initial per-regulator debugfs support regulator: Make regulator_has_full_constraints a bool regulator: Clean up logging a bit regulator: Optimise out noop voltage changes regulator: Add API to re-apply voltage to hardware regulator: Staticise non-exported functions in mc13892 regulator: Only notify voltage changes when they succeed regulator: Provide a selector based set_voltage_sel() operation regulator: Factor out voltage set operation into a separate function regulator: Convert WM8994 to use get_voltage_sel() regulator: Convert WM835x to use get_voltage_sel() regulator: Allow modular build of mc13xxx-core regulator: support PMIC mc13892 make mc13783 regulator code generic Change the register name definitions for mc13783 mach-ux500: Updated and connected ab8500 regulator board configuration regulators: Removed macros for initialization of ab8500 regulators regulators: Added verbose debug messages to ab8500 regulators ...
2011-01-13Merge branch 'x86-olpc-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-olpc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, olpc: Speed up device tree creation during boot x86, olpc: Add OLPC device-tree support x86, of: Define irq functions to allow drivers/of/* to build on x86
2011-01-13Merge branch 'kvm-updates/2.6.38' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
* 'kvm-updates/2.6.38' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (142 commits) KVM: Initialize fpu state in preemptible context KVM: VMX: when entering real mode align segment base to 16 bytes KVM: MMU: handle 'map_writable' in set_spte() function KVM: MMU: audit: allow audit more guests at the same time KVM: Fetch guest cr3 from hardware on demand KVM: Replace reads of vcpu->arch.cr3 by an accessor KVM: MMU: only write protect mappings at pagetable level KVM: VMX: Correct asm constraint in vmcs_load()/vmcs_clear() KVM: MMU: Initialize base_role for tdp mmus KVM: VMX: Optimize atomic EFER load KVM: VMX: Add definitions for more vm entry/exit control bits KVM: SVM: copy instruction bytes from VMCB KVM: SVM: implement enhanced INVLPG intercept KVM: SVM: enhance mov DR intercept handler KVM: SVM: enhance MOV CR intercept handler KVM: SVM: add new SVM feature bit names KVM: cleanup emulate_instruction KVM: move complete_insn_gp() into x86.c KVM: x86: fix CR8 handling KVM guest: Fix kvm clock initialization when it's configured out ...
2011-01-13Merge branch 'for-next' of ↵Linus Torvalds
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: (43 commits) Documentation/trace/events.txt: Remove obsolete sched_signal_send. writeback: fix global_dirty_limits comment runtime -> real-time ppc: fix comment typo singal -> signal drivers: fix comment typo diable -> disable. m68k: fix comment typo diable -> disable. wireless: comment typo fix diable -> disable. media: comment typo fix diable -> disable. remove doc for obsolete dynamic-printk kernel-parameter remove extraneous 'is' from Documentation/iostats.txt Fix spelling milisec -> ms in snd_ps3 module parameter description Fix spelling mistakes in comments Revert conflicting V4L changes i7core_edac: fix typos in comments mm/rmap.c: fix comment sound, ca0106: Fix assignment to 'channel'. hrtimer: fix a typo in comment init/Kconfig: fix typo anon_inodes: fix wrong function name in comment fix comment typos concerning "consistent" poll: fix a typo in comment ... Fix up trivial conflicts in: - drivers/net/wireless/iwlwifi/iwl-core.c (moved to iwl-legacy.c) - fs/ext4/ext4.h Also fix missed 'diabled' typo in drivers/net/bnx2x/bnx2x.h while at it.
2011-01-13x86: support XZ-compressed kernelLasse Collin
This integrates the XZ decompression code to the x86 pre-boot code. mkpiggy.c is updated to reserve about 32 KiB more buffer safety margin for kernel decompression. It is done unconditionally for all decompressors to keep the code simpler. The XZ decompressor needs around 30 KiB of heap, so the heap size is increased to 32 KiB on both x86-32 and x86-64. Documentation/x86/boot.txt is updated to list the XZ magic number. With the x86 BCJ filter in XZ, XZ-compressed x86 kernel tends to be a few percent smaller than the equivalent LZMA-compressed kernel. Signed-off-by: Lasse Collin <lasse.collin@tukaani.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Alain Knaff <alain@knaff.lu> Cc: Albin Tonnerre <albin.tonnerre@free-electrons.com> Cc: Phillip Lougher <phillip@lougher.demon.co.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-13rapidio: fix hang on RapidIO doorbell queue full conditionThomas Taranowski
In fsl_rio_dbell_handler() the code currently simply acknowledges the QFI queue full interrupt, but does nothing to resolve the queue full condition. Instead, it jumps to the end of the isr. When a queue full condition occurs, the isr is then re-entered immediately and continually, forever. The fix is to just fall through and read out current doorbell entries. Signed-off-by: Thomas Taranowski <tom@baringforge.com> Cc: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Li Yang <leoli@freescale.com> Cc: Thomas Moll <thomas.moll@sysgo.com> Cc: Micha Nelissen <micha@neli.hopto.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-13drivers/staging/olpc_dcon: convert to new cs5535 gpio APIAndres Salomon
Drop the old geode_gpio crud, as well as the raw outl() calls; instead, use the Linux GPIO API where possible, and the cs5535_gpio API in other places. Note that we don't actually clean up the driver properly yet (once loaded, it always remains loaded). That'll come later.. This patch is necessary for building the driver. Signed-off-by: Andres Salomon <dilinger@queued.net> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-13kernel: clean up USE_GENERIC_SMP_HELPERSAmerigo Wang
For arch which needs USE_GENERIC_SMP_HELPERS, it has to select USE_GENERIC_SMP_HELPERS, rather than leaving a choice to user, since they don't provide their own implementions. Also, move on_each_cpu() to kernel/smp.c, it is strange to put it in kernel/softirq.c. For arch which doesn't use USE_GENERIC_SMP_HELPERS, e.g. blackfin, only on_each_cpu() is compiled. Signed-off-by: Amerigo Wang <amwang@redhat.com> Cc: David Howells <dhowells@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-13set_rtc_mmss: show warning message only onceStephen Hemminger
Occasionally the system gets into a state where the CMOS clock has gotten slightly ahead of current time and the periodic update of RTC fails. The message is a nuisance and repeats spamming the log. See: http://www.ntp.org/ntpfaq/NTP-s-trbl-spec.htm#Q-LINUX-SET-RTC-MMSS Rather than just removing the message, make it show only once and reduce severity since it indicates a normal and non urgent condition. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: David Howells <dhowells@redhat.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-13uml: use simple_write_to_buffer()Akinobu Mita
Simplify write file operation for mmapper by using simple_write_to_buffer(). Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-13uml: mmapper_kern needs MODULE_LICENSERandy Dunlap
Add missing MODULE_LICENSE(): WARNING: modpost: missing MODULE_LICENSE() in arch/um/drivers/mmapper_kern.o Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Greg Lonnon <glonnon@ridgerun.com> Cc: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-13arch/um/drivers/line.c: safely iterate over list of winch handlersWill Newton
unregister_winch() should use list_for_each_safe(), as it can delete from the list. Signed-off-by: Will Newton <will.newton@gmail.com> Cc: richard -rw- weinberger <richard.weinberger@gmail.com> Acked-by: WANG Cong <xiyou.wangcong@gmail.com> Cc: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-13um: mark CONFIG_HIGHMEM as brokenRichard Weinberger
Currently CONFIG_HIGHMEM is broken on User Mode Linux. I'm not sure if it worked ever. It doesn't compile and this breaks randomconfig testing. Signed-off-by: Richard Weinberger <richard@nod.at> Cc: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-13Merge branch 'topic/asoc' into for-linusTakashi Iwai
2011-01-12pass default dentry_operations to mount_pseudo()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12Change the register name definitions for mc13783Yong Shen
To make mc13783 and mc13892 share code, the register names should be changed to fit the new macro definitions in the comming patch. Signed-off-by: Yong Shen <yong.shen@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Samuel Ortiz <sameo@linux.intel.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2011-01-12mach-ux500: Updated and connected ab8500 regulator board configurationBengt Jonsson
The ab8500 regulator board configuration is updated and put in an array which can easily be used in the MFD board configuration. The regulator board configuration is also added to the MFD configuration in this patch. Signed-off-by: Bengt Jonsson <bengt.g.jonsson@stericsson.com> Acked-by: Linus Walleij <linus.walleij@stericsson.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2011-01-12watchdog: Add MCF548x watchdog driver.Philippe De Muyter
Add watchdog driver for MCF548x. Signed-off-by: Philippe De Muyter <phdm@macqel.be> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-01-12KVM: Initialize fpu state in preemptible contextAvi Kivity
init_fpu() (which is indirectly called by the fpu switching code) assumes it is in process context. Rather than makeing init_fpu() use an atomic allocation, which can cause a task to be killed, make sure the fpu is already initialized when we enter the run loop. KVM-Stable-Tag. Reported-and-tested-by: Kirill A. Shutemov <kas@openvz.org> Acked-by: Pekka Enberg <penberg@kernel.org> Reviewed-by: Christoph Lameter <cl@linux.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: VMX: when entering real mode align segment base to 16 bytesGleb Natapov
VMX checks that base is equal segment shifted 4 bits left. Otherwise guest entry fails. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: MMU: handle 'map_writable' in set_spte() functionXiao Guangrong
Move the operation of 'writable' to set_spte() to clean up code [avi: remove unneeded booleanification] Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: MMU: audit: allow audit more guests at the same timeXiao Guangrong
It only allows to audit one guest in the system since: - 'audit_point' is a glob variable - mmu_audit_disable() is called in kvm_mmu_destroy(), so audit is disabled after a guest exited this patch fix those issues then allow to audit more guests at the same time Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: Fetch guest cr3 from hardware on demandAvi Kivity
Instead of syncing the guest cr3 every exit, which is expensince on vmx with ept enabled, sync it only on demand. [sheng: fix incorrect cr3 seen by Windows XP] Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: Replace reads of vcpu->arch.cr3 by an accessorAvi Kivity
This allows us to keep cr3 in the VMCS, later on. Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: MMU: only write protect mappings at pagetable levelMarcelo Tosatti
If a pagetable contains a writeable large spte, all of its sptes will be write protected, including non-leaf ones, leading to endless pagefaults. Do not write protect pages above PT_PAGE_TABLE_LEVEL, as the spte fault paths assume non-leaf sptes are writable. Tested-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-01-12KVM: VMX: Correct asm constraint in vmcs_load()/vmcs_clear()Avi Kivity
'error' is byte sized, so use a byte register constraint. Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-01-12KVM: MMU: Initialize base_role for tdp mmusAvi Kivity
Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-01-12KVM: VMX: Optimize atomic EFER loadAvi Kivity
When NX is enabled on the host but not on the guest, we use the entry/exit msr load facility, which is slow. Optimize it to use entry/exit efer load, which is ~1200 cycles faster. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-01-12KVM: VMX: Add definitions for more vm entry/exit control bitsAvi Kivity
Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-01-12KVM: SVM: copy instruction bytes from VMCBAndre Przywara
In case of a nested page fault or an intercepted #PF newer SVM implementations provide a copy of the faulting instruction bytes in the VMCB. Use these bytes to feed the instruction emulator and avoid the costly guest instruction fetch in this case. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-01-12KVM: SVM: implement enhanced INVLPG interceptAndre Przywara
When the DecodeAssist feature is available, the linear address is provided in the VMCB on INVLPG intercepts. Use it directly to avoid any decoding and emulation. This is only useful for shadow paging, though. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-01-12KVM: SVM: enhance mov DR intercept handlerAndre Przywara
Newer SVM implementations provide the GPR number in the VMCB, so that the emulation path is no longer necesarry to handle debug register access intercepts. Implement the handling in svm.c and use it when the info is provided. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-01-12KVM: SVM: enhance MOV CR intercept handlerAndre Przywara
Newer SVM implementations provide the GPR number in the VMCB, so that the emulation path is no longer necesarry to handle CR register access intercepts. Implement the handling in svm.c and use it when the info is provided. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-01-12KVM: SVM: add new SVM feature bit namesAndre Przywara
the recent APM Vol.2 and the recent AMD CPUID specification describe new CPUID features bits for SVM. Name them here for later usage. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-01-12KVM: cleanup emulate_instructionAndre Przywara
emulate_instruction had many callers, but only one used all parameters. One parameter was unused, another one is now hidden by a wrapper function (required for a future addition anyway), so most callers use now a shorter parameter list. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-01-12KVM: move complete_insn_gp() into x86.cAndre Przywara
move the complete_insn_gp() helper function out of the VMX part into the generic x86 part to make it usable by SVM. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-01-12KVM: x86: fix CR8 handlingAndre Przywara
The handling of CR8 writes in KVM is currently somewhat cumbersome. This patch makes it look like the other CR register handlers and fixes a possible issue in VMX, where the RIP would be incremented despite an injected #GP. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-01-12KVM guest: Fix kvm clock initialization when it's configured outAvi Kivity
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: Take missing slots_lock for kvm_io_bus_unregister_dev()Takuya Yoshikawa
In KVM_CREATE_IRQCHIP, kvm_io_bus_unregister_dev() is called without taking slots_lock in the error handling path. Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: return true when user space query KVM_CAP_USER_NMI extensionLai Jiangshan
userspace may check this extension in runtime. Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: Correct kvm_pio tracepoint count fieldAvi Kivity
Currently, we record '1' for count regardless of the real count. Fix. Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: MMU: Fix incorrect direct page write protection due to ro host pageAvi Kivity
If KVM sees a read-only host page, it will map it as read-only to prevent breaking a COW. However, if the page was part of a large guest page, KVM incorrectly extends the write protection to the entire large page frame instead of limiting it to the normal host page. This results in the instantiation of a new shadow page with read-only access. If this happens for a MOVS instruction that moves memory between two normal pages, within a single large page frame, and mapped within the guest as a large page, and if, in addition, the source operand is not writeable in the host (perhaps due to KSM), then KVM will instantiate a read-only direct shadow page, instantiate an spte for the source operand, then instantiate a new read/write direct shadow page and instantiate an spte for the destination operand. Since these two sptes are in different shadow pages, MOVS will never see them at the same time and the guest will not make progress. Fix by mapping the direct shadow page read/write, and only marking the host page read-only. Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: SVM: Add xsetbv interceptJoerg Roedel
This patch implements the xsetbv intercept to the AMD part of KVM. This makes AVX usable in a save way for the guest on AVX capable AMD hardware. The patch is tested by using AVX in the guest and host in parallel and checking for data corruption. I also used the KVM xsave unit-tests and they all pass. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: MMU: Make the way of accessing lpage_info more genericTakuya Yoshikawa
Large page information has two elements but one of them, write_count, alone is accessed by a helper function. This patch replaces this helper function with more generic one which returns newly named kvm_lpage_info structure and use it to access the other element rmap_pde. Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: VMX: add module parameter to avoid trapping HLT instructions (v5)Anthony Liguori
In certain use-cases, we want to allocate guests fixed time slices where idle guest cycles leave the machine idling. There are many approaches to achieve this but the most direct is to simply avoid trapping the HLT instruction which lets the guest directly execute the instruction putting the processor to sleep. Introduce this as a module-level option for kvm-vmx.ko since if you do this for one guest, you probably want to do it for all. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: SVM: Implement Flush-By-Asid featureJoerg Roedel
This patch adds the new flush-by-asid of upcoming AMD processors to the KVM-AMD module. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>