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* Merge branch 'for-linus' of ↵Linus Torvalds2010-10-25
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: (365 commits) ALSA: hda - Disable sticky PCM stream assignment for AD codecs ALSA: usb - Creative USB X-Fi volume knob support ALSA: ca0106: Use card specific dac id for mute controls. ALSA: ca0106: Allow different sound cards to use different SPI channel mappings. ALSA: ca0106: Create a nice spot for mapping channels to dacs. ALSA: ca0106: Move enabling of front dac out of hardcoded setup sequence. ALSA: ca0106: Pull out dac powering routine into separate function. ALSA: ca0106 - add Sound Blaster 5.1vx info. ASoC: tlv320dac33: Use usleep_range for delays ALSA: usb-audio: add Novation Launchpad support ALSA: hda - Add workarounds for CT-IBG controllers ALSA: hda - Fix wrong TLV mute bit for STAC/IDT codecs ASoC: tpa6130a2: Error handling for broken chip ASoC: max98088: Staticise m98088_eq_band ASoC: soc-core: Fix codec->name memory leak ALSA: hda - Apply ideapad quirk to Acer laptops with Cxt5066 ALSA: hda - Add some workarounds for Creative IBG ALSA: hda - Fix wrong SPDIF NID assignment for CA0110 ALSA: hda - Fix codec rename rules for ALC662-compatible codecs ALSA: hda - Add alc_init_jacks() call to other codecs ...
| * Merge branch 'topic/asoc' into for-linusTakashi Iwai2010-10-25
| |\ | | | | | | | | | | | | Conflicts: arch/powerpc/platforms/85xx/p1022_ds.c
| | * powerpc/85xx: add DIU support to the Freecale P1022DS reference boardTimur Tabi2010-10-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Freescale P1022DS has an on-chip video controller called the DIU, and a driver for this device already exists. Update the platform file for the P1022DS reference board to enable the driver, and update the defconfig for Freescale MPC85xx boards to add the driver. [Edited to resolve header add/add conflict and drop #define DEBUG. -- broonie] Signed-off-by: Timur Tabi <timur@freescale.com> Acked-by: Kumar Gala <kumar.gala@freescale.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| | * Merge branch 'for-2.6.36' into for-2.6.37Mark Brown2010-08-16
| | |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fairly simple conflicts, the most serious ones are the i.MX ones which I suspect now need another rename. Conflicts: arch/arm/mach-mx2/clock_imx27.c arch/arm/mach-mx2/devices.c arch/arm/mach-omap2/board-rx51-peripherals.c arch/arm/mach-omap2/board-zoom2.c sound/soc/fsl/mpc5200_dma.c sound/soc/fsl/mpc5200_dma.h sound/soc/fsl/mpc8610_hpcd.c sound/soc/pxa/spitz.c
| | * | asoc/multi-component: fsl: add support for disabled SSI nodesTimur Tabi2010-08-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for adding "status = disabled" to an SSI node to incidate that it is not wired on the board. This replaces the not-so-intuitive previous method of omitting a codec-handle property. Signed-off-by: Timur Tabi <timur@freescale.com> Acked-by: Kumar Gala <galak@kernel.crashing.org> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
| | * | powerpc: rename immap_86xx.h to fsl_guts.h, and add 85xx supportTimur Tabi2010-08-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The immap_86xx.h header file only defines one data structure: the "global utilities" register set found on Freescale PowerPC SOCs. Rename this file to fsl_guts.h to reflect its true purpose, and extend it to cover the "GUTS" register set on 85xx chips. Signed-off-by: Timur Tabi <timur@freescale.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
* | | | Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds2010-10-25
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6: mtd/m25p80: add support to parse the partitions by OF node of/irq: of_irq.c needs to include linux/irq.h of/mips: Cleanup some include directives/files. of/mips: Add device tree support to MIPS of/flattree: Eliminate need to provide early_init_dt_scan_chosen_arch of/device: Rework to use common platform_device_alloc() for allocating devices of/xsysace: Fix OF probing on little-endian systems of: use __be32 types for big-endian device tree data of/irq: remove references to NO_IRQ in drivers/of/platform.c of/promtree: add package-to-path support to pdt of/promtree: add of_pdt namespace to pdt code of/promtree: no longer call prom_ functions directly; use an ops structure of/promtree: make drivers/of/pdt.c no longer sparc-only sparc: break out some PROM device-tree building code out into drivers/of of/sparc: convert various prom_* functions to use phandle sparc: stop exporting openprom.h header powerpc, of_serial: Endianness issues setting up the serial ports of: MTD: Fix OF probing on little-endian systems of: GPIO: Fix OF probing on little-endian systems
| * | | | of/flattree: Eliminate need to provide early_init_dt_scan_chosen_archGrant Likely2010-10-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch refactors the early init parsing of the chosen node so that architectures aren't forced to provide an empty implementation of early_init_dt_scan_chosen_arch. Instead, if an architecture wants to do something different, it can either use a wrapper function around early_init_dt_scan_chosen(), or it can replace it altogether. This patch was written in preparation to adding device tree support to both x86 ad MIPS. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Tested-by: David Daney <ddaney@caviumnetworks.com>
| * | | | of/device: Rework to use common platform_device_alloc() for allocating devicesGrant Likely2010-10-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current code allocates and manages platform_devices created from the device tree manually. It also uses an unsafe shortcut for allocating the platform_device and the resource table at the same time. (which I added in the last rework; sorry). This patch refactors the code to use platform_device_alloc() for allocating new devices. This reduces the amount of custom code implemented by of_platform, eliminates the unsafe alloc trick, and has the side benefit of letting the platform_bus code manage freeing the device data and resources when the device is freed. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Greg Kroah-Hartman <gregkh@suse.de> Cc: "David S. Miller" <davem@davemloft.net> Cc: Michal Simek <monstr@monstr.eu>
| * | | | powerpc, of_serial: Endianness issues setting up the serial portsIan Munsie2010-10-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The speed and clock of the serial ports is retrieved from the device tree in both the PowerPC legacy serial code and the Open Firmware serial driver, therefore they need to handle the fact that the device tree is always big endian, while the CPU may not be. Also fix other device tree references in the legacy serial code. Signed-off-by: Ian Munsie <imunsie@au1.ibm.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* | | | | Merge branch 'for-next' of ↵Linus Torvalds2010-10-24
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
| * | | | | Update broken web addresses in arch directory.Justin P. Mattock2010-10-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The patch below updates broken web addresses in the arch directory. Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Cc: Finn Thain <fthain@telegraphics.com.au> Cc: Randy Dunlap <rdunlap@xenotime.net> Reviewed-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | | | | | Merge branch 'kvm-updates/2.6.37' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds2010-10-24
|\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * '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 ...
| * | | | | | KVM: PPC: Move of include to __KERNEL__ sectionAlexander Graf2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We have to protect the include for linux/of.h by __KERNEL__ so it doesn't accidently get referenced outside. This patch fixes this and makes the tree compile again. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | | KVM: PPC: Fix compile error in e500_tlb.cAlexander Graf2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The e500_tlb.c file didn't compile for me due to the following error: arch/powerpc/kvm/e500_tlb.c: In function ‘kvmppc_e500_shadow_map’: arch/powerpc/kvm/e500_tlb.c:300: error: format ‘%lx’ expects type ‘long unsigned int’, but argument 2 has type ‘gfn_t’ So let's explicitly cast the argument to make printk happy. Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | | KVM: PPC: e500_tlb: Fix a minor copy-paste tracing bugKyle Moffett2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The kvmppc_e500_stlbe_invalidate() function was trying to pass too many parameters to trace_kvm_stlb_inval(). This appears to be a bad copy-paste from a call to trace_kvm_stlb_write(). Signed-off-by: Kyle Moffett <Kyle.D.Moffett@boeing.com> Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | | KVM: PPC: Implement level interrupts for BookEAlexander Graf2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BookE also wants to support level based interrupts, so let's implement all the necessary logic there. We need to trick a bit here because the irqprios are 1:1 assigned to architecture defined values. But since there is some space left there, we can just pick a random one and move it later on - it's internal anyways. Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | | KVM: PPC: Expose level based interrupt capAlexander Graf2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that we have all the level interrupt magic in place, let's expose the capability to user space, so it can make use of it! Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | | KVM: PPC: Implement Level interrupts on Book3SAlexander Graf2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current interrupt logic is just completely broken. We get a notification from user space, telling us that an interrupt is there. But then user space expects us that we just acknowledge an interrupt once we deliver it to the guest. This is not how real hardware works though. On real hardware, the interrupt controller pulls the external interrupt line until it gets notified that the interrupt was received. So in reality we have two events: pulling and letting go of the interrupt line. To maintain backwards compatibility, I added a new request for the pulling part. The letting go part was implemented earlier already. With this in place, we can now finally start guests that do not randomly stall and stop to work at random times. This patch implements above logic for Book3S. Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | | KVM: PPC: Enable napping only for Book3s_64Alexander Graf2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Before I incorrectly enabled napping also for BookE, which would result in needless dcache flushes. Since we only need to force enable napping on Book3s_64 because it doesn't go into MSR_POW otherwise, we can just #ifdef that code to this particular platform. Reported-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | | KVM: PPC: allow ppc440gp to pass the compatibility checkHollis Blanchard2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Match only the first part of cur_cpu_spec->platform. 440GP (the first 440 processor) is identified by the string "ppc440gp", while all later 440 processors use simply "ppc440". Signed-off-by: Hollis Blanchard <hollis_blanchard@mentor.com> Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | | KVM: PPC: fix compilation of "dump tlbs" debug functionHollis Blanchard2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Missing local variable. Signed-off-by: Hollis Blanchard <hollis_blanchard@mentor.com> Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | | KVM: PPC: initialize IVORs in addition to IVPRHollis Blanchard2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Developers can now tell at a glace the exact type of the premature interrupt, instead of just knowing that there was some premature interrupt. Signed-off-by: Hollis Blanchard <hollis_blanchard@mentor.com> Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | | KVM: PPC: Don't put MSR_POW in MSRAlexander Graf2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On Book3S a mtmsr with the MSR_POW bit set indicates that the OS is in idle and only needs to be waked up on the next interrupt. Now, unfortunately we let that bit slip into the stored MSR value which is not what the real CPU does, so that we ended up executing code like this: r = mfmsr(); /* r containts MSR_POW */ mtmsr(r | MSR_EE); This obviously breaks, as we're going into idle mode in code sections that don't expect to be idling. This patch masks MSR_POW out of the stored MSR value on wakeup, making guests happy again. Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | | KVM: PPC: Implement correct SID mapping on Book3s_32Alexander Graf2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Up until now we were doing segment mappings wrong on Book3s_32. For Book3s_64 we were using a trick where we know that a single mmu_context gives us 16 bits of context ids. The mm system on Book3s_32 instead uses a clever algorithm to distribute VSIDs across the available range, so a context id really only gives us 16 available VSIDs. To keep at least a few guest processes in the SID shadow, let's map a number of contexts that we can use as VSID pool. This makes the code be actually correct and shouldn't hurt performance too much. Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | | KVM: PPC: Force enable nap on KVMAlexander Graf2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are some heuristics in the PPC power management code that try to find out if the particular hardware we're running on supports proper power management or just hangs the machine when going into nap mode. Since we know that KVM is safe with nap, let's force enable it in the PV code once we're certain that we are on a KVM VM. Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | | KVM: PPC: Make PV mtmsrd L=1 work with r30 and r31Alexander Graf2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We had an arbitrary limitation in mtmsrd L=1 that kept us from using r30 and r31 as input registers. Let's get rid of that and get more potential speedups! Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | | KVM: PPC: Update int_pending also on dequeueAlexander Graf2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When having a decrementor interrupt pending, the dequeuing happens manually through an mtdec instruction. This instruction simply calls dequeue on that interrupt, so the int_pending hint doesn't get updated. This patch enables updating the int_pending hint also on dequeue, thus correctly enabling guests to stay in guest contexts more often. Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | | KVM: PPC: Make PV mtmsr work with r30 and r31Alexander Graf2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | So far we've been restricting ourselves to r0-r29 as registers an mtmsr instruction could use. This was bad, as there are some code paths in Linux actually using r30. So let's instead handle all registers gracefully and get rid of that stupid limitation Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | | KVM: PPC: Add mtsrin PV codeAlexander Graf2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is the guest side of the mtsr acceleration. Using this a guest can now call mtsrin with almost no overhead as long as it ensures that it only uses it with (MSR_IR|MSR_DR) == 0. Linux does that, so we're good. Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | | KVM: PPC: Put segment registers in shared pageAlexander Graf2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that the actual mtsr doesn't do anything anymore, we can move the sr contents over to the shared page, so a guest can directly read and write its sr contents from guest context. Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | | KVM: PPC: Interpret SR registers on demandAlexander Graf2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Right now we're examining the contents of Book3s_32's segment registers when the register is written and put the interpreted contents into a struct. There are two reasons this is bad. For starters, the struct has worse real-time performance, as it occupies more ram. But the more important part is that with segment registers being interpreted from their raw values, we can put them in the shared page, allowing guests to mess with them directly. This patch makes the internal representation of SRs be u32s. Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | | KVM: PPC: Move BAT handling code into spr handlerAlexander Graf2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current approach duplicates the spr->bat finding logic and makes it harder to reuse the actually used variables. So let's move everything down to the spr handler. Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | | KVM: PPC: Add feature bitmap for magic pageAlexander Graf2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We will soon add SR PV support to the shared page, so we need some infrastructure that allows the guest to query for features KVM exports. This patch adds a second return value to the magic mapping that indicated to the guest which features are available. Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | | KVM: PPC: Remove unused defineAlexander Graf2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The define VSID_ALL is unused. Let's remove it. Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | | KVM: PPC: Revert "KVM: PPC: Use kernel hash function"Alexander Graf2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It turns out the in-kernel hash function is sub-optimal for our subtle hash inputs where every bit is significant. So let's revert to the original hash functions. This reverts commit 05340ab4f9a6626f7a2e8f9fe5397c61d494f445. Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | | KVM: PPC: Move slb debugging to tracepointsAlexander Graf2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch moves debugging printks for shadow SLB debugging over to tracepoints. Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | | KVM: PPC: Make invalidation code more reliableAlexander Graf2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is a race condition in the pte invalidation code path where we can't be sure if a pte was invalidated already. So let's move the spin lock around to get rid of the race. Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | | KVM: PPC: Don't flush PTEs on NX/RO hitAlexander Graf2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When hitting a no-execute or read-only data/inst storage interrupt we were flushing the respective PTE so we're sure it gets properly overwritten next. According to the spec, this is unnecessary though. The guest issues a tlbie anyways, so we're safe to just keep the PTE around and have it manually removed from the guest, saving us a flush. Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | | KVM: PPC: Preload magic page when in kernel modeAlexander Graf2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the guest jumps into kernel mode and has the magic page mapped, theres a very high chance that it will also use it. So let's detect that scenario and map the segment accordingly. Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | | KVM: PPC: Add tracepoints for generic spte flushesAlexander Graf2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The different ways of flusing shadow ptes have their own debug prints which use stupid old printk. Let's move them to tracepoints, making them easier available, faster and possible to activate on demand Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | | KVM: PPC: Fix sid map search after flushAlexander Graf2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After a flush the sid map contained lots of entries with 0 for their gvsid and hvsid value. Unfortunately, 0 can be a real value the guest searches for when looking up a vsid so it would incorrectly find the host's 0 hvsid mapping which doesn't belong to our sid space. So let's also check for the valid bit that indicated that the sid we're looking at actually contains useful data. Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | | KVM: PPC: Move pte invalidate debug code to tracepointAlexander Graf2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch moves the SPTE flush debug printk over to tracepoints. Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | | KVM: PPC: Add tracepoint for generic mmu mapAlexander Graf2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch moves the generic mmu map debugging over to tracepoints. Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | | KVM: PPC: Move book3s_64 mmu map debug print to trace pointAlexander Graf2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch moves Book3s MMU debugging over to tracepoints. Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | | KVM: PPC: Move EXIT_DEBUG partially to tracepointsAlexander Graf2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We have a debug printk on every exit that is usually #ifdef'ed out. Using tracepoints makes a lot more sense here though, as they can be dynamically enabled. This patch converts the most commonly used debug printks of EXIT_DEBUG to tracepoints. Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | | KVM: PPC: Fix CONFIG_KVM_GUEST && !CONFIG_KVM caseAlexander Graf2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When CONFIG_KVM_GUEST is selected, but CONFIG_KVM is not, we were missing some defines in asm-offsets.c and included too many headers at other places. This patch makes above configuration work. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | | | | KVM: PPC: fix leakage of error page in kvmppc_patch_dcbz()Wei Yongjun2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add kvm_release_page_clean() after is_error_page() to avoid leakage of error page. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | | | | KVM: PPC: Move KVM trampolines before __end_interruptsAlexander Graf2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When using a relocatable kernel we need to make sure that the trampline code and the interrupt handlers are both copied to low memory. The only way to do this reliably is to put them in the copied section. This patch should make relocated kernels work with KVM. KVM-Stable-Tag Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | | | | KVM: PPC: Make long relocations be ulongAlexander Graf2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On Book3S KVM we directly expose some asm pointers to C code as variables. These need to be relocated and thus break on relocatable kernels. To make sure we can at least build, let's mark them as long instead of u32 where 64bit relocations don't work. This fixes the following build error: WARNING: 2 bad relocations^M > c000000000008590 R_PPC64_ADDR32 .text+0x4000000000008460^M > c000000000008594 R_PPC64_ADDR32 .text+0x4000000000008598^M Please keep in mind that actually using KVM on a relocated kernel might still break. This only fixes the compile problem. Reported-by: Subrata Modak <subrata@linux.vnet.ibm.com> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Avi Kivity <avi@redhat.com>