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2017-02-09powerpc/pseries: Add hypercall wrappers for hash page table resizingDavid Gibson
This adds the hypercall numbers and wrapper functions for the hash page table resizing hypercalls. These hypercall numbers are defined in the PAPR ACR "HPT resizing option". It also adds a new firmware feature flag to track the presence of the HPT resizing calls. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-02-09powerpc/powernv: Properly set "host-ipi" on IPIsBenjamin Herrenschmidt
Otherwise KVM will fail to pass them through to the host Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-02-09powerpc/powernv: Fix CPU hotplug to handle waking on HVIBenjamin Herrenschmidt
The IPIs come in as HVI not EE, so we need to test the appropriate SRR1 bits. The encoding is such that it won't have false positives on P7 and P8 so we can just test it like that. We also need to handle the icp-opal variant of the flush. Fixes: d74361881f0d ("powerpc/xics: Add ICP OPAL backend") Cc: stable@vger.kernel.org # v4.8+ Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-02-09powerpc/mm/radix: Update ERAT flushes when invalidating TLBBenjamin Herrenschmidt
Three tiny changes to the ERAT flushing logic: First don't make it depend on DD1. It hasn't been decided yet but we might run DD2 in a mode that also requires explicit flushes for performance reasons so make it unconditional. We also add a missing isync, and finally remove the flush from _tlbiel_va as it is only necessary for congruence-class invalidations (PID, LPID and full TLB), not targetted invalidations. Fixes: 96ed1fe511a8 ("powerpc/mm/radix: Invalidate ERAT on tlbiel for POWER9 DD1") Cc: stable@vger.kernel.org # v4.9+ Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-02-08Revert "x86/ioapic: Restore IO-APIC irq_chip retrigger callback"Linus Torvalds
This reverts commit 020eb3daaba2857b32c4cf4c82f503d6a00a67de. Gabriel C reports that it causes his machine to not boot, and we haven't tracked down the reason for it yet. Since the bug it fixes has been around for a longish time, we're better off reverting the fix for now. Gabriel says: "It hangs early and freezes with a lot RCU warnings. I bisected it down to : > Ruslan Ruslichenko (1): > x86/ioapic: Restore IO-APIC irq_chip retrigger callback Reverting this one fixes the problem for me.. The box is a PRIMERGY TX200 S5 , 2 socket , 2 x E5520 CPU(s) installed" and Ruslan and Thomas are currently stumped. Reported-and-bisected-by: Gabriel C <nix.or.die@gmail.com> Cc: Ruslan Ruslichenko <rruslich@cisco.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: stable@kernel.org # for the backport of the original commit Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-09MIPS: BMIPS: enable CPUfreqMarkus Mayer
Enable all applicable CPUfreq options. Signed-off-by: Markus Mayer <mmayer@broadcom.com> Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-02-09BMIPS: Enable prerequisites for CPUfreq in MIPS Kconfig.Markus Mayer
Turn on CPU_SUPPORTS_CPUFREQ and MIPS_EXTERNAL_TIMER for BMIPS. Signed-off-by: Markus Mayer <mmayer@broadcom.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-02-09MIPS: BMIPS: Update defconfigMarkus Mayer
Ran "make savedefconfig" to bring bmips_stb_defconfig up to date. Signed-off-by: Markus Mayer <mmayer@broadcom.com> Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-02-09powerpc/opal-lpc: Remove unneeded includeBenjamin Herrenschmidt
We don't need asm/xics.h Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-02-09powerpc/opal-irqchip: Use interrupt names if presentBenjamin Herrenschmidt
Recent versions of OPAL can provide names for the various OPAL interrupts, so let's use them. This also modernises the code that fetches the interrupt array to use the helpers provided by the generic code instead of hand-parsing the property. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> [mpe: Free irqs on error, check allocation of names, consolidate error handling, whitespace.] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-02-09powerpc/powernv: Display the correct error info for CAPP errors.Mahesh Salgaonkar
On some CAPP errors we see console messages that prints unknown HMIs for which CAPI recovery is in progress. This patch fixes this by printing correct error info for HMI generated due to CAPP recovery. Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com> Tested-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-02-09powerpc/powernv: Add XHCI and USB storage to defconfigMichael Neuling
These are common on bare metal machines, so put them in the defconfig. This adds 216KB to the vmlinux size Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-02-09powerpc/64: Include bpf/bcc related config options in defconfigsNaveen N. Rao
Specifically: - CONFIG_BPF_SYSCALL - CONFIG_NET_SCHED - CONFIG_NET_CLS_BPF - CONFIG_NET_CLS_ACT - CONFIG_NET_ACT_BPF - CONFIG_CGROUP_BPF - CONFIG_UPROBE_EVENT ... in pseries, ppc64 and powernv defconfigs. Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-02-08arm64: uaccess: consistently check object sizesMark Rutland
Currently in arm64's copy_{to,from}_user, we only check the source/destination object size if access_ok() tells us the user access is permissible. However, in copy_from_user() we'll subsequently zero any remainder on the destination object. If we failed the access_ok() check, that applies to the whole object size, which we didn't check. To ensure that we catch that case, this patch hoists check_object_size() to the start of copy_from_user(), matching __copy_from_user() and __copy_to_user(). To make all of our uaccess copy primitives consistent, the same is done to copy_to_user(). Cc: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Kees Cook <keescook@chromium.org> Signed-off-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2017-02-08Merge tag 'fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Arnd Bergmann: - A relatively large patch restores booting on i.MX platforms that failed to boot after a cleanup was merged for v4.10. - A quirk for USB needs to be enabled on the STi platform - On the Meson platform, we saw memory corruption with part of the memory used by the secure monitor, so we have to stay out of that area. - The same platform also has a problem with ethernet under load, which is fixed by disabling EEE negotiation. - imx6dl has an incorrect pin configuration, which prevents SPI from working. - Two maintainers have lost their access to their email addresses, so we should update the MAINTAINERS file before the release - Renaming one of the orion5x linkstation models to help simplify the debian install. - A couple of fixes for build warnings that were introduced during v4.10-rc. * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: defconfigs: make NF_CT_PROTO_SCTP and NF_CT_PROTO_UDPLITE built-in MAINTAINERS: socfpga: update email for Dinh Nguyen ARM: orion5x: fix Makefile for linkstation-lschl.dtb ARM: dts: orion5x-lschl: More consistent naming on linkstation series ARM: dts: orion5x-lschl: Fix model name MAINTAINERS: change email address from atmel to microchip MAINTAINERS: at91: change email address ARM64: dts: meson-gx: Add firmware reserved memory zones ARM64: dts: meson-gxbb-odroidc2: fix GbE tx link breakage ARM: dts: STiH407-family: set snps,dis_u3_susphy_quirk ARM: dts: imx: Pass 'chosen' and 'memory' nodes ARM: dts: imx6dl: fix GPIO4 range ARM: imx: hide unused variable in #ifdef
2017-02-08kvmclock: export kvmclock clocksource and data pointersMarcelo Tosatti
To be used by KVM PTP driver. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-02-08KVM: arm/arm64: Emulate the EL1 phys timer registersJintack Lim
Emulate read and write operations to CNTP_TVAL, CNTP_CVAL and CNTP_CTL. Now VMs are able to use the EL1 physical timer. Signed-off-by: Jintack Lim <jintack@cs.columbia.edu> Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2017-02-08KVM: arm64: Add the EL1 physical timer access handlerJintack Lim
KVM traps on the EL1 phys timer accesses from VMs, but it doesn't handle those traps. This results in terminating VMs. Instead, set a handler for the EL1 phys timer access, and inject an undefined exception as an intermediate step. Signed-off-by: Jintack Lim <jintack@cs.columbia.edu> Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2017-02-08KVM: arm/arm64: Set a background timer to the earliest timer expirationJintack Lim
When scheduling a background timer, consider both of the virtual and physical timer and pick the earliest expiration time. Signed-off-by: Jintack Lim <jintack@cs.columbia.edu> Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2017-02-08KVM: arm/arm64: Initialize the emulated EL1 physical timerJintack Lim
Initialize the emulated EL1 physical timer with the default irq number. Signed-off-by: Jintack Lim <jintack@cs.columbia.edu> Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2017-02-08KVM: arm/arm64: Decouple kvm timer functions from virtual timerJintack Lim
Now that we have a separate structure for timer context, make functions generic so that they can work with any timer context, not just the virtual timer context. This does not change the virtual timer functionality. Signed-off-by: Jintack Lim <jintack@cs.columbia.edu> Acked-by: Marc Zyngier <marc.zyngier@arm.com> Acked-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2017-02-08KVM: arm/arm64: Move cntvoff to each timer contextJintack Lim
Make cntvoff per each timer context. This is helpful to abstract kvm timer functions to work with timer context without considering timer types (e.g. physical timer or virtual timer). This also would pave the way for ever doing adjustments of the cntvoff on a per-CPU basis if that should ever make sense. Signed-off-by: Jintack Lim <jintack@cs.columbia.edu> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2017-02-08arm64: remove wrong CONFIG_PROC_SYSCTL ifdefJuri Lelli
The sysfs cpu_capacity entry for each CPU has nothing to do with PROC_FS, nor it's in /proc/sys path. Remove such ifdef. Cc: Will Deacon <will.deacon@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Reported-and-suggested-by: Sudeep Holla <sudeep.holla@arm.com> Fixes: be8f185d8af4 ('arm64: add sysfs cpu_capacity attribute') Signed-off-by: Juri Lelli <juri.lelli@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2017-02-08s390: add no-execute supportMartin Schwidefsky
Bit 0x100 of a page table, segment table of region table entry can be used to disallow code execution for the virtual addresses associated with the entry. There is one tricky bit, the system call to return from a signal is part of the signal frame written to the user stack. With a non-executable stack this would stop working. To avoid breaking things the protection fault handler checks the opcode that caused the fault for 0x0a77 (sys_sigreturn) and 0x0aad (sys_rt_sigreturn) and injects a system call. This is preferable to the alternative solution with a stub function in the vdso because it works for vdso=off and statically linked binaries as well. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2017-02-08s390: report new vector facilitiesMartin Schwidefsky
Add hardware capability bits and feature tags to /proc/cpuinfo for the "Vector Packed Decimal Facility" (tag "vxd" / hwcap bit 2^12) and the "Vector Enhancements Facility 1" (tag "vxe" / hwcap bit 2^13). Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2017-02-08s390: use correct input data address for setup_randomnessHeiko Carstens
The current implementation of setup_randomness uses the stack address and therefore the pointer to the SYSIB 3.2.2 block as input data address. Furthermore the length of the input data is the number of virtual-machine description blocks which is typically one. This means that typically a single zero byte is fed to add_device_randomness. Fix both of these and use the address of the first virtual machine description block as input data address and also use the correct length. Fixes: bcfcbb6bae64 ("s390: add system information as device randomness") Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2017-02-08s390/sclp: don't add new lines to each printed stringHeiko Carstens
The early vt220 sclp printk code added an extra new line to each printed multi-line text. If used for the early sclp console this will lead to numerous extra new lines. Therefore get rid of this semantic and require that each to be printed string contains a line feed character if a new line is wanted. Reviewed-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2017-02-08s390/sclp: make early sclp code readableHeiko Carstens
This patch - unifies the old sclp early code and the sclp early printk code, so they can use common functions - makes sure all sclp early functions and variables have the same "sclp_early" prefix - converts the sclp early printk code into readable code by using existing data structures instead of hard coded magic arrays - splits the early sclp code into two files: sclp_early.c and sclp_early_core.c. The core file contains everything that is required by the kernel decompressor and may not call functions not contained within the core file. Otherwise the result would be a link error. - changes interrupt handling to be completely synchronous. The old early sclp code had a small window which allowed to receive several interrupts instead of exactly the single expected interrupt. This did hide a subtle potential bug, which is fixed with this large rework. - contains a couple of small cleanups. Reviewed-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2017-02-08s390/sclp: move early printk code to driversHeiko Carstens
Move the early sclp printk code to the drivers folder where also the rest of the sclp code can be found. This way it is possible to use the sclp private header files for further cleanups. Reviewed-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2017-02-08powerpc/mm: Fix spurrious segfaults on radix with autonumaBenjamin Herrenschmidt
When autonuma (Automatic NUMA balancing) marks a PTE inaccessible it clears all the protection bits but leave the PTE valid. With the Radix MMU, an attempt at executing from such a PTE will take a fault with bit 35 of SRR1 set "SRR1_ISI_N_OR_G". It is thus incorrect to treat all such faults as errors. We should pass them to handle_mm_fault() for autonuma to deal with. The case of pages that are really not executable is handled by the existing test for VM_EXEC further down. That leaves us with catching the kernel attempts at executing user pages. We can catch that earlier, even before we do find_vma. It is never valid on powerpc for the kernel to take an exec fault to begin with. So fold that test with the existing test for the kernel faulting on kernel addresses to bail out early. Fixes: 1d18ad026844 ("powerpc/mm: Detect instruction fetch denied and report") Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Acked-by: Balbir Singh <bsingharora@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-02-08[media] ARM: multi_v7_defconfig: enable STMicroelectronics DELTA SupportHugues Fruchet
Enables support of STMicroelectronics STiH4xx SoC series DELTA multi-format video decoder V4L2 driver. Acked-by: Peter Griffin <peter.griffin@linaro.org> Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-02-08[media] ARM: dts: STiH407-family: add DELTA dt nodeHugues Fruchet
This patch adds DT node for STMicroelectronics DELTA V4L2 video decoder Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-02-08KVM: x86: fix compilationPaolo Bonzini
Fix rebase breakage from commit 55dd00a73a51 ("KVM: x86: add KVM_HC_CLOCK_PAIRING hypercall", 2017-01-24), courtesy of the "I could have sworn I had pushed the right branch" department. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-02-08Merge remote-tracking branch 'remotes/powerpc/topic/ppc-kvm' into kvm-ppc-nextPaul Mackerras
This merges in a fix which touches both PPC and KVM code, which was therefore put into a topic branch in the powerpc tree. Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
2017-02-08arm64: dts: mt8173: add reference clock for usbChunfeng Yun
Due to the reference clock comes from 26M oscillator directly on mt8173, and it is a fixed-clock in DTS which always turned on, we ignore it before. But on some platforms, it comes from PLL, and need be controlled, so here add it, no matter it is a fixed-clock or not. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-08clocksource/drivers/arm_arch_timer: Introduce generic errata handling ↵Ding Tianhong
infrastructure Currently we have code inline in the arch timer probe path to cater for Freescale erratum A-008585, complete with ifdeffery. This is a little ugly, and will get worse as we try to add more errata handling. This patch refactors the handling of Freescale erratum A-008585. Now the erratum is described in a generic arch_timer_erratum_workaround structure, and the probe path can iterate over these to detect errata and enable workarounds. This will simplify the addition and maintenance of code handling Hisilicon erratum 161010101. Signed-off-by: Ding Tianhong <dingtianhong@huawei.com> [Mark: split patch, correct Kconfig, reword commit message] Signed-off-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2017-02-07Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
The conflict was an interaction between a bug fix in the netvsc driver in 'net' and an optimization of the RX path in 'net-next'. Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-07arch: Rename CONFIG_DEBUG_RODATA and CONFIG_DEBUG_MODULE_RONXLaura Abbott
Both of these options are poorly named. The features they provide are necessary for system security and should not be considered debug only. Change the names to CONFIG_STRICT_KERNEL_RWX and CONFIG_STRICT_MODULE_RWX to better describe what these options do. Signed-off-by: Laura Abbott <labbott@redhat.com> Acked-by: Jessica Yu <jeyu@redhat.com> Signed-off-by: Kees Cook <keescook@chromium.org>
2017-02-07arch: Move CONFIG_DEBUG_RODATA and CONFIG_SET_MODULE_RONX to be commonLaura Abbott
There are multiple architectures that support CONFIG_DEBUG_RODATA and CONFIG_SET_MODULE_RONX. These options also now have the ability to be turned off at runtime. Move these to an architecture independent location and make these options def_bool y for almost all of those arches. Signed-off-by: Laura Abbott <labbott@redhat.com> Acked-by: Ingo Molnar <mingo@kernel.org> Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Kees Cook <keescook@chromium.org>
2017-02-07clocksource/drivers/ostm: Add renesas-ostm timer driverChris Brandt
This patch adds a OSTM driver for the Renesas architecture. The OS Timer (OSTM) has independent channels that can be used as a freerun or interval times. This driver uses the first probed device as a clocksource and then any additional devices as clock events. Signed-off-by: Chris Brandt <chris.brandt@renesas.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2017-02-07ARM: ux500: remove deleted file from MakefileOlof Johansson
Cleanup removed the file, but Makefile was overlooked. Purge there too. Fixes: 4b483ed0be8b ('ARM: ux500: cut some platform data') Signed-off-by: Olof Johansson <olof@lixom.net>
2017-02-07ARC: [arcompact] brown paper bag bug in unaligned access delay slot fixupVineet Gupta
Reported-by: Jo-Philipp Wich <jo@mein.io> Fixes: 9aed02feae57bf7 ("ARC: [arcompact] handle unaligned access delay slot") Cc: linux-kernel@vger.kernel.org Cc: linux-snps-arc@lists.infradead.org Cc: stable@vger.kernel.org Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-07Merge tag 'kvm-s390-next-4.11-2' of ↵Paolo Bonzini
git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD KVM: s390: Fixes and features for 4.11 (via kvm/next) - enable some simd extensions for guests - enable nx for guests - debug log for cpu model - PER fixes - remove bitwise annotation from ar_t - detect guests in operation exception program check loops - fix potential null-pointer dereference for ucontrol guests - also contains merge for fix that went into 4.10 to avoid conflicts
2017-02-07Merge tag 'kvm_mips_4.11_1' of ↵Paolo Bonzini
git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/kvm-mips into HEAD KVM: MIPS: GVA/GPA page tables, dirty logging, SYNC_MMU etc Numerous MIPS KVM fixes, improvements, and features for 4.11, many of which continue to pave the way for VZ support, the most interesting of which are: - Add GVA->HPA page tables for T&E, to cache GVA mappings. - Generate fast-path TLB refill exception handler which loads host TLB entries from GVA page table, avoiding repeated guest memory translation and guest TLB lookups. - Use uaccess macros when T&E needs to access guest memory, which with GVA page tables and the Linux TLB refill handler improves robustness against TLB faults and fixes EVA hosts. - Use BadInstr/BadInstrP registers when available to obtain instruction encodings after a synchronous trap. - Add GPA->HPA page tables to replace the inflexible linear array, allowing for multiple sparsely arranged memory regions. - Properly implement dirty page logging. - Add KVM_CAP_SYNC_MMU support so that changes in GPA mappings become effective in guests even if they are already running, allowing for copy-on-write, KSM, idle page tracking, swapping, and guest memory ballooning. - Add KVM_CAP_READONLY_MEM support, so writes to specified memory regions are treated as MMIO. - Implement proper CP0_EBase support in T&E. - Expose a few more missing CP0 registers to userland. - Add KVM_CAP_NR_VCPUS and KVM_CAP_MAX_VCPUS support, and allow up to 8 VCPUs to be created in a VM. - Various cleanups and dropping of dead and duplicated code.
2017-02-07Merge branch 'kvm-ppc-next' of ↵Paolo Bonzini
git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc into HEAD The big feature this time is support for POWER9 using the radix-tree MMU for host and guest. This required some changes to arch/powerpc code, so I talked with Michael Ellerman and he created a topic branch with this patchset, which I merged into kvm-ppc-next and which Michael will pull into his tree. Michael also put in some patches from Nick Piggin which fix bugs in the interrupt vector code in relocatable kernels when coming from a KVM guest. Other notable changes include: * Add the ability to change the size of the hashed page table, from David Gibson. * XICS (interrupt controller) emulation fixes and improvements, from Li Zhong. * Bug fixes from myself and Thomas Huth. These patches define some new KVM capabilities and ioctls, but there should be no conflicts with anything else currently upstream, as far as I am aware.
2017-02-07KVM: x86: add KVM_HC_CLOCK_PAIRING hypercallMarcelo Tosatti
Add a hypercall to retrieve the host realtime clock and the TSC value used to calculate that clock read. Used to implement clock synchronization between host and guest. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-02-07KVM: nVMX: vmx_complete_nested_posted_interrupt() can't failDavid Hildenbrand
vmx_complete_nested_posted_interrupt() can't fail, let's turn it into a void function. Signed-off-by: David Hildenbrand <david@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-02-07KVM: nVMX: kmap() can't failDavid Hildenbrand
kmap() can't fail, therefore it will always return a valid pointer. Let's just get rid of the unnecessary checks. Signed-off-by: David Hildenbrand <david@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-02-07Merge tag 'sunxi-defconfig-for-4.11' of ↵Arnd Bergmann
https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into next/defconfig Pull "Allwinner defconfig changes for 4.11" from Maxime Ripard: A single patch to enable the thermal DT support in sunxi_defconfig * tag 'sunxi-defconfig-for-4.11' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux: ARM: sunxi: Add CONFIG_THERMAL_OF
2017-02-07ARM: orion: Register DSA switch as a MDIO deviceFlorian Fainelli
Utilize the ability to pass board specific MDIO bus information towards a particular MDIO device thus allowing us to provide the per-port switch layout to the Marvell 88E6XXX switch driver. Since we would end-up with conflicting registration paths, do not register the "dsa" platform device anymore. Note that the MDIO devices registered by code in net/dsa/dsa2.c does not parse a dsa_platform_data, but directly take a dsa_chip_data (specific to a single switch chip), so we update the different call sites to pass this structure down to orion_ge00_switch_init(). Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>