acpi= [HW,ACPI,X86,ARM64]
Advanced Configuration and Power Interface
- Format: { force | off | strict | noirq | rsdt }
+ Format: { force | off | strict | noirq | rsdt |
+ copy_dsdt }
force -- enable ACPI if default was off
off -- disable ACPI if default was on
noirq -- do not use ACPI for IRQ routing
is passed, kernel could allocate physical memory region
above 4G, that cause second kernel crash on system
that require some amount of low memory, e.g. swiotlb
- requires at least 64M+32K low memory. Kernel would
- try to allocate 72M below 4G automatically.
+ requires at least 64M+32K low memory, also enough extra
+ low memory is needed to make sure DMA buffers for 32-bit
+ devices won't run out. Kernel would try to allocate at
+ at least 256M below 4G automatically.
This one let user to specify own low range under 4G
for second kernel instead.
0: to disable low allocation.
The filter can be disabled or changed to another
driver later using sysfs.
- drm_kms_helper.edid_firmware=[<connector>:]<file>
- Broken monitors, graphic adapters and KVMs may
- send no or incorrect EDID data sets. This parameter
- allows to specify an EDID data set in the
- /lib/firmware directory that is used instead.
+ drm_kms_helper.edid_firmware=[<connector>:]<file>[,[<connector>:]<file>]
+ Broken monitors, graphic adapters, KVMs and EDIDless
+ panels may send no or incorrect EDID data sets.
+ This parameter allows to specify an EDID data sets
+ in the /lib/firmware directory that are used instead.
Generic built-in EDID data sets are used, if one of
edid/1024x768.bin, edid/1280x1024.bin,
edid/1680x1050.bin, or edid/1920x1080.bin is given
available in Documentation/EDID/HOWTO.txt. An EDID
data set will only be used for a particular connector,
if its name and a colon are prepended to the EDID
- name.
+ name. Each connector may use a unique EDID data
+ set by separating the files with a comma. An EDID
+ data set with no connector name will be used for
+ any connectors not explicitly specified.
dscc4.setup= [NET]
earlycon= [KNL] Output early console device and options.
+ When used with no options, the early console is
+ determined by the stdout-path property in device
+ tree's chosen node.
+
cdns,<addr>
Start an early, polled-mode console on a cadence serial
port at the specified address. The cadence serial port
you are really sure that your UEFI does sane gc and
fulfills the spec otherwise your board may brick.
+ efi_fake_mem= nn[KMG]@ss[KMG]:aa[,nn[KMG]@ss[KMG]:aa,..] [EFI; X86]
+ Add arbitrary attribute to specific memory range by
+ updating original EFI memory map.
+ Region of memory which aa attribute is added to is
+ from ss to ss+nn.
+ If efi_fake_mem=2G@4G:0x10000,2G@0x10a0000000:0x10000
+ is specified, EFI_MEMORY_MORE_RELIABLE(0x10000)
+ attribute is added to range 0x100000000-0x180000000 and
+ 0x10a0000000-0x1120000000.
+
+ Using this parameter you can do debugging of EFI memmap
+ related feature. For example, you can do debugging of
+ Address Range Mirroring feature even if your box
+ doesn't support it.
+
eisa_irq_edge= [PARISC,HW]
See header of drivers/parisc/eisa.c.
hwp_only
Only load intel_pstate on systems which support
hardware P state control (HWP) if available.
+ no_acpi
+ Don't use ACPI processor performance control objects
+ _PSS and _PPC specified limits.
intremap= [X86-64, Intel-IOMMU]
on enable Interrupt Remapping (default)
nosid disable Source ID checking
no_x2apic_optout
BIOS x2APIC opt-out request will be ignored
+ nopost disable Interrupt Posting
iomem= Disable strict checking of access to MMIO memory
strict regions from userspace.
nmi_watchdog= [KNL,BUGS=X86] Debugging features for SMP kernels
Format: [panic,][nopanic,][num]
Valid num: 0 or 1
- 0 - turn nmi_watchdog off
- 1 - turn nmi_watchdog on
+ 0 - turn hardlockup detector in nmi_watchdog off
+ 1 - turn hardlockup detector in nmi_watchdog on
When panic is specified, panic when an NMI watchdog
timeout occurs (or 'nopanic' to override the opposite
- default).
+ default). To disable both hard and soft lockup detectors,
+ please see 'nowatchdog'.
This is useful when you use a panic=... timeout and
need the box quickly up again.
cache-to-cache transfer latencies.
rcutree.rcu_fanout_leaf= [KNL]
- Increase the number of CPUs assigned to each
- leaf rcu_node structure. Useful for very large
- systems.
+ Change the number of CPUs assigned to each
+ leaf rcu_node structure. Useful for very
+ large systems, which will choose the value 64,
+ and for NUMA systems with large remote-access
+ latencies, which will choose a value aligned
+ with the appropriate hardware boundaries.
rcutree.jiffies_till_sched_qs= [KNL]
Set required age in jiffies for a
Architectures: x86, ppc, mips
Type: vcpu ioctl
Parameters: struct kvm_interrupt (in)
- Returns: 0 on success, -1 on error
+ Returns: 0 on success, negative on failure.
- Queues a hardware interrupt vector to be injected. This is only
- useful if in-kernel local APIC or equivalent is not used.
+ Queues a hardware interrupt vector to be injected.
/* for KVM_INTERRUPT */
struct kvm_interrupt {
X86:
- Note 'irq' is an interrupt vector, not an interrupt pin or line.
+ Returns: 0 on success,
+ -EEXIST if an interrupt is already enqueued
+ -EINVAL the the irq number is invalid
+ -ENXIO if the PIC is in the kernel
+ -EFAULT if the pointer is invalid
+
+ Note 'irq' is an interrupt vector, not an interrupt pin or line. This
+ ioctl is useful if the in-kernel PIC is not used.
PPC:
struct kvm_ioeventfd {
__u64 datamatch;
__u64 addr; /* legal pio/mmio address */
- __u32 len; /* 1, 2, 4, or 8 bytes */
+ __u32 len; /* 0, 1, 2, 4, or 8 bytes */
__s32 fd;
__u32 flags;
__u8 pad[36];
For virtio-ccw devices, addr contains the subchannel id and datamatch the
virtqueue index.
+ With KVM_CAP_IOEVENTFD_ANY_LENGTH, a zero length ioeventfd is allowed, and
+ the kernel will ignore the length of guest write and may get a faster vmexit.
+ The speedup may only apply to specific architectures, but the ioeventfd will
+ work anyway.
4.60 KVM_DIRTY_TLB
To use this to emulate the LINT1 input with KVM_CREATE_IRQCHIP, use the
following algorithm:
- - pause the vpcu
+ - pause the vcpu
- read the local APIC's state (KVM_GET_LAPIC)
- check whether changing LINT1 will queue an NMI (see the LVT entry for LINT1)
- if so, issue KVM_NMI
< 0 on generic error (e.g. -EFAULT or -ENOMEM),
> 0 if an exception occurred while walking the page tables
-Read or write data from/to the logical (virtual) memory of a VPCU.
+Read or write data from/to the logical (virtual) memory of a VCPU.
Parameters are specified via the following structure:
to ignore the request, or to gather VM memory core dump and/or
reset/shutdown of the VM.
+ /* KVM_EXIT_IOAPIC_EOI */
+ struct {
+ __u8 vector;
+ } eoi;
+
+ Indicates that the VCPU's in-kernel local APIC received an EOI for a
+ level-triggered IOAPIC interrupt. This exit only triggers when the
+ IOAPIC is implemented in userspace (i.e. KVM_CAP_SPLIT_IRQCHIP is enabled);
+ the userspace IOAPIC should process the EOI and retrigger the interrupt if
+ it is still asserted. Vector is the LAPIC interrupt vector for which the
+ EOI was received.
+
/* Fix the size of the union. */
char padding[256];
};
KVM handlers should exit to userspace with rc = -EREMOTE.
+ 7.5 KVM_CAP_SPLIT_IRQCHIP
+
+ Architectures: x86
+ Parameters: args[0] - number of routes reserved for userspace IOAPICs
+ Returns: 0 on success, -1 on error
+
+ Create a local apic for each processor in the kernel. This can be used
+ instead of KVM_CREATE_IRQCHIP if the userspace VMM wishes to emulate the
+ IOAPIC and PIC (and also the PIT, even though this has to be enabled
+ separately).
+
+ This capability also enables in kernel routing of interrupt requests;
+ when KVM_CAP_SPLIT_IRQCHIP only routes of KVM_IRQ_ROUTING_MSI type are
+ used in the IRQ routing table. The first args[0] MSI routes are reserved
+ for the IOAPIC pins. Whenever the LAPIC receives an EOI for these routes,
+ a KVM_EXIT_IOAPIC_EOI vmexit will be reported to userspace.
+
+ Fails if VCPU has already been created, or if the irqchip is already in the
+ kernel (i.e. KVM_CREATE_IRQCHIP has already been called).
+
8. Other capabilities.
----------------------
S: Maintained
F: drivers/hwmon/abituguru3.c
+ACCES 104-IDIO-16 GPIO DRIVER
+M: "William Breathitt Gray" <vilhelm.gray@gmail.com>
+L: linux-gpio@vger.kernel.org
+S: Maintained
+F: drivers/gpio/gpio-104-idio-16.c
+
ACENIC DRIVER
M: Jes Sorensen <jes@trained-monkey.org>
L: linux-acenic@sunsite.dk
F: drivers/gpu/drm/radeon/radeon_kfd.h
F: include/uapi/linux/kfd_ioctl.h
-AMD MICROCODE UPDATE SUPPORT
-M: Borislav Petkov <bp@alien8.de>
-S: Maintained
-F: arch/x86/kernel/cpu/microcode/amd*
-
AMD XGBE DRIVER
M: Tom Lendacky <thomas.lendacky@amd.com>
L: netdev@vger.kernel.org
F: drivers/net/appletalk/
F: net/appletalk/
+APPLIED MICRO (APM) X-GENE DEVICE TREE SUPPORT
+M: Duc Dang <dhdang@apm.com>
+S: Supported
+F: arch/arm64/boot/dts/apm/
+
APPLIED MICRO (APM) X-GENE SOC ETHERNET DRIVER
M: Iyappan Subramanian <isubramanian@apm.com>
M: Keyur Chudgar <kchudgar@apm.com>
ARM PMU PROFILING AND DEBUGGING
M: Will Deacon <will.deacon@arm.com>
+R: Mark Rutland <mark.rutland@arm.com>
S: Maintained
-F: arch/arm/kernel/perf_*
+F: arch/arm*/kernel/perf_*
F: arch/arm/oprofile/common.c
-F: arch/arm/kernel/hw_breakpoint.c
-F: arch/arm/include/asm/hw_breakpoint.h
-F: arch/arm/include/asm/perf_event.h
+F: arch/arm*/kernel/hw_breakpoint.c
+F: arch/arm*/include/asm/hw_breakpoint.h
+F: arch/arm*/include/asm/perf_event.h
F: drivers/perf/arm_pmu.c
F: include/linux/perf/arm_pmu.h
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
-ARM/Allwinner A1X SoC support
+ARM/Allwinner sunXi SoC support
M: Maxime Ripard <maxime.ripard@free-electrons.com>
+M: Chen-Yu Tsai <wens@csie.org>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
-N: sun[x4567]i
+N: sun[x456789]i
ARM/Allwinner SoC Clock Support
M: Emilio López <emilio@elopez.com.ar>
S: Maintained
F: arch/arm/mach-alpine/
-ARM/ATMEL AT91RM9200 AND AT91SAM ARM ARCHITECTURES
+ARM/ATMEL AT91RM9200, AT91SAM9 AND SAMA5 SOC SUPPORT
M: Nicolas Ferre <nicolas.ferre@atmel.com>
M: Alexandre Belloni <alexandre.belloni@free-electrons.com>
M: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
M: Joachim Eastwood <manabian@gmail.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
+F: arch/arm/boot/dts/lpc43*
+F: drivers/clk/nxp/clk-lpc18xx*
+F: drivers/clocksource/time-lpc32xx.c
+F: drivers/i2c/busses/i2c-lpc2k.c
+F: drivers/memory/pl172.c
+F: drivers/mtd/spi-nor/nxp-spifi.c
+F: drivers/rtc/rtc-lpc24xx.c
N: lpc18xx
ARM/MAGICIAN MACHINE SUPPORT
F: drivers/*/*s3c2410*
F: drivers/*/*/*s3c2410*
F: drivers/spi/spi-s3c*
+F: drivers/soc/samsung/*
F: sound/soc/samsung/*
+F: Documentation/arm/Samsung/
+F: Documentation/devicetree/bindings/arm/samsung/
+F: Documentation/devicetree/bindings/sram/samsung-sram.txt
+F: Documentation/devicetree/bindings/power/pd-samsung.txt
N: exynos
ARM/SAMSUNG MOBILE MACHINE SUPPORT
S: Maintained
F: drivers/media/platform/s5p-tv/
+ARM/SAMSUNG S5P SERIES JPEG CODEC SUPPORT
+M: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
+M: Jacek Anaszewski <j.anaszewski@samsung.com>
+L: linux-arm-kernel@lists.infradead.org
+L: linux-media@vger.kernel.org
+S: Maintained
+F: drivers/media/platform/s5p-jpeg/
+
ARM/SHMOBILE ARM ARCHITECTURE
M: Simon Horman <horms@verge.net.au>
M: Magnus Damm <magnus.damm@gmail.com>
F: arch/arm/boot/dts/r7s*
F: arch/arm/boot/dts/r8a*
F: arch/arm/boot/dts/sh*
-F: arch/arm/configs/bockw_defconfig
-F: arch/arm/configs/marzen_defconfig
F: arch/arm/configs/shmobile_defconfig
F: arch/arm/include/debug/renesas-scif.S
F: arch/arm/mach-shmobile/
S: Maintained
F: arch/arm/mach-sti/
F: arch/arm/boot/dts/sti*
+F: drivers/char/hw_random/st-rng.c
F: drivers/clocksource/arm_global_timer.c
F: drivers/clocksource/clksrc_st_lpc.c
F: drivers/i2c/busses/i2c-st.c
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
F: arch/arm/boot/dts/uniphier*
+F: arch/arm/include/asm/hardware/cache-uniphier.h
F: arch/arm/mach-uniphier/
+F: arch/arm/mm/cache-uniphier.c
+F: drivers/i2c/busses/i2c-uniphier*
F: drivers/pinctrl/uniphier/
F: drivers/tty/serial/8250/8250_uniphier.c
N: uniphier
F: Documentation/aoe/
F: drivers/block/aoe/
+ATHEROS 71XX/9XXX GPIO DRIVER
+M: Alban Bedel <albeu@free.fr>
+W: https://github.com/AlbanBedel/linux
+T: git git://github.com/AlbanBedel/linux
+S: Maintained
+F: drivers/gpio/gpio-ath79.c
+F: Documentation/devicetree/bindings/gpio/gpio-ath79.txt
+
ATHEROS ATH GENERIC UTILITIES
M: "Luis R. Rodriguez" <mcgrof@do-not-panic.com>
L: linux-wireless@vger.kernel.org
S: Supported
F: drivers/scsi/bnx2i/
-BROADCOM CYGNUS/IPROC ARM ARCHITECTURE
+BROADCOM IPROC ARM ARCHITECTURE
M: Ray Jui <rjui@broadcom.com>
M: Scott Branden <sbranden@broadcom.com>
+M: Jon Mason <jonmason@broadcom.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
L: bcm-kernel-feedback-list@broadcom.com
T: git git://github.com/broadcom/cygnus-linux.git
S: Maintained
N: iproc
N: cygnus
+N: nsp
N: bcm9113*
N: bcm9583*
-N: bcm583*
+N: bcm9585*
+N: bcm9586*
+N: bcm988312
N: bcm113*
+N: bcm583*
+N: bcm585*
+N: bcm586*
+N: bcm88312
BROADCOM BRCMSTB GPIO DRIVER
M: Gregory Fong <gregory.0xf0@gmail.com>
F: drivers/net/ethernet/cisco/enic/
CISCO VIC LOW LATENCY NIC DRIVER
-M: Upinder Malhi <umalhi@cisco.com>
+M: Christian Benvenuti <benve@cisco.com>
+M: Dave Goodell <dgoodell@cisco.com>
S: Supported
-F: drivers/infiniband/hw/usnic
+F: drivers/infiniband/hw/usnic/
CIRRUS LOGIC EP93XX ETHERNET DRIVER
M: Hartley Sweeten <hsweeten@visionengravers.com>
W: http://www.dialog-semiconductor.com/products
S: Supported
F: Documentation/hwmon/da90??
+F: Documentation/devicetree/bindings/sound/da[79]*.txt
F: drivers/gpio/gpio-da90??.c
F: drivers/hwmon/da90??-hwmon.c
F: drivers/iio/adc/da91??-*.c
L: linux-doc@vger.kernel.org
S: Maintained
F: Documentation/
+F: scripts/docproc.c
+F: scripts/kernel-doc*
X: Documentation/ABI/
X: Documentation/devicetree/
X: Documentation/acpi
X: Documentation/power
X: Documentation/spi
X: Documentation/DocBook/media
-T: git git://git.lwn.net/linux-2.6.git docs-next
+T: git git://git.lwn.net/linux.git docs-next
DOUBLETALK DRIVER
M: "James R. Van Zandt" <jrv@vanzandt.mv.com>
M: Jani Nikula <jani.nikula@linux.intel.com>
L: intel-gfx@lists.freedesktop.org
L: dri-devel@lists.freedesktop.org
+W: https://01.org/linuxgraphics/
Q: http://patchwork.freedesktop.org/project/intel-gfx/
T: git git://anongit.freedesktop.org/drm-intel
S: Supported
F: include/drm/i915*
F: include/uapi/drm/i915*
+DRM DRIVERS FOR ATMEL HLCDC
+M: Boris Brezillon <boris.brezillon@free-electrons.com>
+L: dri-devel@lists.freedesktop.org
+S: Supported
+F: drivers/gpu/drm/atmel-hlcdc/
+F: Documentation/devicetree/bindings/drm/atmel/
+
DRM DRIVERS FOR EXYNOS
M: Inki Dae <inki.dae@samsung.com>
M: Joonyoung Shim <jy0922.shim@samsung.com>
F: drivers/gpu/drm/imx/
F: Documentation/devicetree/bindings/drm/imx/
+DRM DRIVERS FOR GMA500 (Poulsbo, Moorestown and derivative chipsets)
+M: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
+L: dri-devel@lists.freedesktop.org
+T: git git://github.com/patjak/drm-gma500
+S: Maintained
+F: drivers/gpu/drm/gma500
+F: include/drm/gma500*
+
DRM DRIVERS FOR NVIDIA TEGRA
M: Thierry Reding <thierry.reding@gmail.com>
M: Terje Bergström <tbergstrom@nvidia.com>
F: sound/usb/misc/ua101.c
EXTENSIBLE FIRMWARE INTERFACE (EFI)
-M: Matt Fleming <matt.fleming@intel.com>
+M: Matt Fleming <matt@codeblueprint.co.uk>
L: linux-efi@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi.git
S: Maintained
EFI VARIABLE FILESYSTEM
M: Matthew Garrett <matthew.garrett@nebula.com>
M: Jeremy Kerr <jk@ozlabs.org>
-M: Matt Fleming <matt.fleming@intel.com>
+M: Matt Fleming <matt@codeblueprint.co.uk>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi.git
L: linux-efi@vger.kernel.org
S: Maintained
S: Maintained
F: drivers/net/ethernet/freescale/ucc_geth*
+FREESCALE eTSEC ETHERNET DRIVER (GIANFAR)
+M: Claudiu Manoil <claudiu.manoil@freescale.com>
+L: netdev@vger.kernel.org
+S: Maintained
+F: drivers/net/ethernet/freescale/gianfar*
+X: drivers/net/ethernet/freescale/gianfar_ptp.c
+F: Documentation/devicetree/bindings/net/fsl-tsec-phy.txt
+
FREESCALE QUICC ENGINE UCC UART DRIVER
M: Timur Tabi <timur@tabi.org>
L: linuxppc-dev@lists.ozlabs.org
F: Documentation/devicetree/bindings/i2c/
F: Documentation/i2c/
F: drivers/i2c/
+F: drivers/i2c/*/
F: include/linux/i2c.h
F: include/linux/i2c-*.h
F: include/uapi/linux/i2c.h
S: Supported
F: drivers/platform/x86/intel_menlow.c
-INTEL IA32 MICROCODE UPDATE SUPPORT
-M: Borislav Petkov <bp@alien8.de>
-S: Maintained
-F: arch/x86/kernel/cpu/microcode/core*
-F: arch/x86/kernel/cpu/microcode/intel*
-
INTEL I/OAT DMA DRIVER
M: Dave Jiang <dave.jiang@intel.com>
R: Dan Williams <dan.j.williams@intel.com>
INTEL WIRELESS WIFI LINK (iwlwifi)
M: Johannes Berg <johannes.berg@intel.com>
M: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
-M: Intel Linux Wireless <ilw@linux.intel.com>
+M: Intel Linux Wireless <linuxwifi@intel.com>
L: linux-wireless@vger.kernel.org
W: http://intellinuxwireless.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi.git
F: drivers/auxdisplay/ks0108.c
F: include/linux/ks0108.h
+L3MDEV
+M: David Ahern <dsa@cumulusnetworks.com>
+L: netdev@vger.kernel.org
+S: Maintained
+F: net/l3mdev
+F: include/net/l3mdev.h
+
LAPB module
L: linux-x25@vger.kernel.org
S: Orphan
F: include/linux/pmem.h
F: arch/*/include/asm/pmem.h
+LIGHTNVM PLATFORM SUPPORT
+M: Matias Bjorling <mb@lightnvm.io>
+W: http://github/OpenChannelSSD
+S: Maintained
+F: drivers/lightnvm/
+F: include/linux/lightnvm.h
+F: include/uapi/linux/lightnvm.h
+
LINUX FOR IBM pSERIES (RS/6000)
M: Paul Mackerras <paulus@au.ibm.com>
W: http://www.ibm.com/linux/ltc/projects/ppc
S: Maintained
F: drivers/net/dsa/mv88e6352.c
+MARVELL CRYPTO DRIVER
+M: Boris Brezillon <boris.brezillon@free-electrons.com>
+M: Arnaud Ebalard <arno@natisbad.org>
+F: drivers/crypto/marvell/
+S: Maintained
+L: linux-crypto@vger.kernel.org
+
MARVELL GIGABIT ETHERNET DRIVERS (skge/sky2)
M: Mirko Lindner <mlindner@marvell.com>
M: Stephen Hemminger <stephen@networkplumber.org>
MELLANOX ETHERNET DRIVER (mlx4_en)
M: Amir Vadai <amirv@mellanox.com>
-M: Ido Shamay <idos@mellanox.com>
L: netdev@vger.kernel.org
S: Supported
W: http://www.mellanox.com
L: linux-wpan@vger.kernel.org
S: Maintained
F: drivers/net/ieee802154/mrf24j40.c
+F: Documentation/devicetree/bindings/net/ieee802154/mrf24j40.txt
MSI LAPTOP SUPPORT
M: "Lee, Chun-Yi" <jlee@suse.com>
F: include/media/mt9v032.h
MULTIFUNCTION DEVICES (MFD)
-M: Samuel Ortiz <sameo@linux.intel.com>
M: Lee Jones <lee.jones@linaro.org>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd.git
S: Supported
F: drivers/net/
F: include/linux/if_*
F: include/linux/netdevice.h
-F: include/linux/arcdevice.h
F: include/linux/etherdevice.h
F: include/linux/fcdevice.h
F: include/linux/fddidevice.h
M: Pali Rohár <pali.rohar@gmail.com>
S: Maintained
F: include/linux/power/bq2415x_charger.h
-F: include/linux/power/bq27x00_battery.h
+F: include/linux/power/bq27xxx_battery.h
F: include/linux/power/isp1704_charger.h
F: drivers/power/bq2415x_charger.c
-F: drivers/power/bq27x00_battery.c
+F: drivers/power/bq27xxx_battery.c
F: drivers/power/isp1704_charger.c
F: drivers/power/rx51_battery.c
F: drivers/video/fbdev/nvidia/
NVM EXPRESS DRIVER
-M: Matthew Wilcox <willy@linux.intel.com>
+M: Keith Busch <keith.busch@intel.com>
+M: Jens Axboe <axboe@fb.com>
L: linux-nvme@lists.infradead.org
-T: git git://git.infradead.org/users/willy/linux-nvme.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git
+W: https://kernel.googlesource.com/pub/scm/linux/kernel/git/axboe/linux-block/
S: Supported
-F: drivers/block/nvme*
+F: drivers/nvme/host/
F: include/linux/nvme.h
NVMEM FRAMEWORK
F: arch/x86/pci/
F: arch/x86/kernel/quirks.c
+PCI DRIVER FOR ALTERA PCIE IP
+M: Ley Foon Tan <lftan@altera.com>
+L: rfi@lists.rocketboards.org (moderated for non-subscribers)
+L: linux-pci@vger.kernel.org
+S: Supported
+F: Documentation/devicetree/bindings/pci/altera-pcie.txt
+F: drivers/pci/host/pcie-altera.c
+
PCI DRIVER FOR ARM VERSATILE PLATFORM
M: Rob Herring <robh@kernel.org>
L: linux-pci@vger.kernel.org
S: Maintained
F: drivers/pci/host/*spear*
+PCI MSI DRIVER FOR ALTERA MSI IP
+M: Ley Foon Tan <lftan@altera.com>
+L: rfi@lists.rocketboards.org (moderated for non-subscribers)
+L: linux-pci@vger.kernel.org
+S: Supported
+F: Documentation/devicetree/bindings/pci/altera-pcie-msi.txt
+F: drivers/pci/host/pcie-altera-msi.c
+
PCI MSI DRIVER FOR APPLIEDMICRO XGENE
M: Duc Dang <dhdang@apm.com>
L: linux-pci@vger.kernel.org
F: Documentation/devicetree/bindings/pci/xgene-pci-msi.txt
F: drivers/pci/host/pci-xgene-msi.c
+PCIE DRIVER FOR HISILICON
+M: Zhou Wang <wangzhou1@hisilicon.com>
+L: linux-pci@vger.kernel.org
+S: Maintained
+F: Documentation/devicetree/bindings/pci/hisilicon-pcie.txt
+F: drivers/pci/host/pcie-hisi.c
+
PCMCIA SUBSYSTEM
P: Linux PCMCIA Team
L: linux-pcmcia@lists.infradead.org
S: Maintained
F: drivers/pinctrl/pinctrl-at91.*
+PIN CONTROLLER - ATMEL AT91 PIO4
+M: Ludovic Desroches <ludovic.desroches@atmel.com>
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+L: linux-gpio@vger.kernel.org
+S: Supported
+F: drivers/pinctrl/pinctrl-at91-pio4.*
+
PIN CONTROLLER - INTEL
M: Mika Westerberg <mika.westerberg@linux.intel.com>
M: Heikki Krogerus <heikki.krogerus@linux.intel.com>
S: Maintained
F: drivers/pnp/
-PNXxxxx I2C DRIVER
-M: Vitaly Wool <vitalywool@gmail.com>
-L: linux-i2c@vger.kernel.org
-S: Maintained
-F: drivers/i2c/busses/i2c-pnx.c
-
PPP PROTOCOL DRIVERS AND COMPRESSORS
M: Paul Mackerras <paulus@samba.org>
L: linux-ppp@vger.kernel.org
S: Supported
F: drivers/net/ethernet/qlogic/qlge/
+QLOGIC QL4xxx ETHERNET DRIVER
+M: Yuval Mintz <Yuval.Mintz@qlogic.com>
+M: Ariel Elior <Ariel.Elior@qlogic.com>
+M: everest-linux-l2@qlogic.com
+L: netdev@vger.kernel.org
+S: Supported
+F: drivers/net/ethernet/qlogic/qed/
+F: include/linux/qed/
+F: drivers/net/ethernet/qlogic/qede/
+
QNX4 FILESYSTEM
M: Anders Larsen <al@alarsen.net>
W: http://www.alarsen.net/linux/qnx4fs/
F: drivers/net/wireless/rtlwifi/
F: drivers/net/wireless/rtlwifi/rtl8192ce/
+RTL8XXXU WIRELESS DRIVER (rtl8xxxu)
+M: Jes Sorensen <Jes.Sorensen@redhat.com>
+L: linux-wireless@vger.kernel.org
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/jes/linux.git rtl8723au-mac80211
+S: Maintained
+F: drivers/net/wireless/realtek/rtl8xxxu/
+
S3 SAVAGE FRAMEBUFFER DRIVER
M: Antonino Daplas <adaplas@gmail.com>
L: linux-fbdev@vger.kernel.org
F: include/net/iucv/
F: net/iucv/
+S390 IOMMU (PCI)
+M: Gerald Schaefer <gerald.schaefer@de.ibm.com>
+L: linux-s390@vger.kernel.org
+W: http://www.ibm.com/developerworks/linux/linux390/
+S: Supported
+F: drivers/iommu/s390-iommu.c
+
S3C24XX SD/MMC Driver
M: Ben Dooks <ben-linux@fluff.org>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
F: Documentation/devicetree/bindings/net/snps,dwc-qos-ethernet.txt
F: drivers/net/ethernet/synopsys/dwc_eth_qos.c
+SYNOPSYS DESIGNWARE I2C DRIVER
+M: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
+M: Jarkko Nikula <jarkko.nikula@linux.intel.com>
+M: Mika Westerberg <mika.westerberg@linux.intel.com>
+L: linux-i2c@vger.kernel.org
+S: Maintained
+F: drivers/i2c/busses/i2c-designware-*
+F: include/linux/platform_data/i2c-designware.h
+
SYNOPSYS DESIGNWARE MMC/SD/SDIO DRIVER
M: Seungwon Jeon <tgih.jun@samsung.com>
M: Jaehoon Chung <jh80.chung@samsung.com>
S: Supported
F: arch/score/
+SYSTEM CONTROL & POWER INTERFACE (SCPI) Message Protocol drivers
+M: Sudeep Holla <sudeep.holla@arm.com>
+L: linux-arm-kernel@lists.infradead.org
+S: Maintained
+F: Documentation/devicetree/bindings/arm/arm,scpi.txt
+F: drivers/clk/clk-scpi.c
+F: drivers/cpufreq/scpi-cpufreq.c
+F: drivers/firmware/arm_scpi.c
+F: include/linux/scpi_protocol.h
+
SCSI CDROM DRIVER
M: Jens Axboe <axboe@kernel.dk>
L: linux-scsi@vger.kernel.org
F: drivers/staging/lustre
STAGING - NVIDIA COMPLIANT EMBEDDED CONTROLLER INTERFACE (nvec)
-M: Julian Andres Klode <jak@jak-linux.org>
M: Marc Dietrich <marvin24@gmx.de>
L: ac100@lists.launchpad.net (moderated for non-subscribers)
L: linux-tegra@vger.kernel.org
SYNOPSYS ARC ARCHITECTURE
M: Vineet Gupta <vgupta@synopsys.com>
+L: linux-snps-arc@lists.infraded.org
S: Supported
F: arch/arc/
F: Documentation/devicetree/bindings/arc/*
TPM DEVICE DRIVER
M: Peter Huewe <peterhuewe@gmx.de>
M: Marcel Selhorst <tpmdd@selhorst.net>
+M: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
R: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
W: http://tpmdd.sourceforge.net
L: tpmdd-devel@lists.sourceforge.net (moderated for non-subscribers)
F: Documentation/fb/uvesafb.txt
F: drivers/video/fbdev/uvesafb.*
+VF610 NAND DRIVER
+M: Stefan Agner <stefan@agner.ch>
+L: linux-mtd@lists.infradead.org
+S: Supported
+F: drivers/mtd/nand/vf610_nfc.c
+
VFAT/FAT/MSDOS FILESYSTEM
M: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
S: Maintained
F: drivers/media/v4l2-core/videobuf2-*
F: include/media/videobuf2-*
+VIRTUAL SERIO DEVICE DRIVER
+M: Stephen Chandler Paul <thatslyude@gmail.com>
+S: Maintained
+F: drivers/input/serio/userio.c
+F: include/uapi/linux/userio.h
+
VIRTIO CONSOLE DRIVER
M: Amit Shah <amit.shah@redhat.com>
L: virtualization@lists.linux-foundation.org
S: Maintained
F: drivers/net/ethernet/via/via-velocity.*
+ VIRT LIB
+ M: Alex Williamson <alex.williamson@redhat.com>
+ M: Paolo Bonzini <pbonzini@redhat.com>
+ L: kvm@vger.kernel.org
+ S: Supported
+ F: virt/lib/
+
VIVID VIRTUAL VIDEO DRIVER
M: Hans Verkuil <hverkuil@xs4all.nl>
L: linux-media@vger.kernel.org
L: netdev@vger.kernel.org
S: Maintained
F: drivers/net/vrf.c
-F: include/net/vrf.h
F: Documentation/networking/vrf.txt
VT1211 HARDWARE MONITOR DRIVER
S: Maintained
F: drivers/net/wireless/wl3501*
-WM97XX TOUCHSCREEN DRIVERS
-M: Mark Brown <broonie@kernel.org>
-M: Liam Girdwood <lrg@slimlogic.co.uk>
-L: linux-input@vger.kernel.org
-W: https://github.com/CirrusLogic/linux-drivers/wiki
-S: Supported
-F: drivers/input/touchscreen/*wm97*
-F: include/linux/wm97xx.h
-
WOLFSON MICROELECTRONICS DRIVERS
L: patches@opensource.wolfsonmicro.com
T: git https://github.com/CirrusLogic/linux-drivers.git
W: https://github.com/CirrusLogic/linux-drivers/wiki
S: Supported
F: Documentation/hwmon/wm83??
+F: Documentation/devicetree/bindings/extcon/extcon-arizona.txt
+F: Documentation/devicetree/bindings/regulator/arizona-regulator.txt
+F: Documentation/devicetree/bindings/mfd/arizona.txt
F: arch/arm/mach-s3c64xx/mach-crag6410*
F: drivers/clk/clk-wm83*.c
F: drivers/extcon/extcon-arizona.c
S: Maintained
F: arch/x86/kernel/cpu/mcheck/*
+X86 MICROCODE UPDATE SUPPORT
+M: Borislav Petkov <bp@alien8.de>
+S: Maintained
+F: arch/x86/kernel/cpu/microcode/*
+
X86 VDSO
M: Andy Lutomirski <luto@amacapital.net>
L: linux-kernel@vger.kernel.org
ZSMALLOC COMPRESSED SLAB MEMORY ALLOCATOR
M: Minchan Kim <minchan@kernel.org>
M: Nitin Gupta <ngupta@vflare.org>
+R: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
L: linux-mm@kvack.org
S: Maintained
F: mm/zsmalloc.c
VERSION = 4
PATCHLEVEL = 3
SUBLEVEL = 0
-EXTRAVERSION = -rc3
-NAME = Hurr durr I'ma sheep
+EXTRAVERSION =
+NAME = Blurry Fish Butt
# *DOCUMENTATION*
# To see a list of typical targets execute "make help"
# Make variables (CC, etc...)
AS = $(CROSS_COMPILE)as
LD = $(CROSS_COMPILE)ld
+LDFINAL = $(LD)
CC = $(CROSS_COMPILE)gcc
CPP = $(CC) -E
+ifdef CONFIG_LTO
+AR = $(CROSS_COMPILE)gcc-ar
+else
AR = $(CROSS_COMPILE)ar
+endif
NM = $(CROSS_COMPILE)nm
STRIP = $(CROSS_COMPILE)strip
OBJCOPY = $(CROSS_COMPILE)objcopy
export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION
export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC
-export CPP AR NM STRIP OBJCOPY OBJDUMP
+export CPP AR NM STRIP OBJCOPY OBJDUMP LDFINAL
export MAKE AWK GENKSYMS INSTALLKERNEL PERL PYTHON UTS_MACHINE
export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL
export KBUILD_ARFLAGS
+ifdef CONFIG_LTO
+# LTO gcc creates a lot of files in TMPDIR, and with /tmp as tmpfs
+# it's easy to drive the machine OOM. Use the object directory
+# instead.
+ifndef TMPDIR
+TMPDIR ?= $(objtree)
+export TMPDIR
+$(info setting TMPDIR=$(objtree) for LTO build)
+endif
+endif
+
# When compiling out-of-tree modules, put MODVERDIR in the module
# tree rather than in the kernel tree. The kernel tree might
# even be read-only.
net-y := net/
libs-y := lib/
core-y := usr/
+ virt-y := virt/
endif # KBUILD_EXTMOD
ifeq ($(dot-config),1)
include scripts/Makefile.kasan
include scripts/Makefile.extrawarn
+include scripts/Makefile.lto
# Add any arch overrides and user supplied CPPFLAGS, AFLAGS and CFLAGS as the
# last assignments
vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \
$(core-y) $(core-m) $(drivers-y) $(drivers-m) \
- $(net-y) $(net-m) $(libs-y) $(libs-m)))
+ $(net-y) $(net-m) $(libs-y) $(libs-m) $(virt-y)))
vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \
- $(init-) $(core-) $(drivers-) $(net-) $(libs-))))
+ $(init-) $(core-) $(drivers-) $(net-) $(libs-) $(virt-))))
init-y := $(patsubst %/, %/built-in.o, $(init-y))
core-y := $(patsubst %/, %/built-in.o, $(core-y))
libs-y1 := $(patsubst %/, %/lib.a, $(libs-y))
libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y))
libs-y := $(libs-y1) $(libs-y2)
+ virt-y := $(patsubst %/, %/built-in.o, $(virt-y))
# Externally visible symbols (used by link-vmlinux.sh)
export KBUILD_VMLINUX_INIT := $(head-y) $(init-y)
- export KBUILD_VMLINUX_MAIN := $(core-y) $(libs-y) $(drivers-y) $(net-y)
+ export KBUILD_VMLINUX_MAIN := $(core-y) $(libs-y) $(drivers-y) $(net-y) $(virt-y)
export KBUILD_LDS := arch/$(SRCARCH)/kernel/vmlinux.lds
export LDFLAGS_vmlinux
# used by scripts/pacmage/Makefile
- export KBUILD_ALLDIRS := $(sort $(filter-out arch/%,$(vmlinux-alldirs)) arch Documentation include samples scripts tools virt)
+ export KBUILD_ALLDIRS := $(sort $(filter-out arch/%,$(vmlinux-alldirs)) arch Documentation include samples scripts tools)
vmlinux-deps := $(KBUILD_LDS) $(KBUILD_VMLINUX_INIT) $(KBUILD_VMLINUX_MAIN)
kselftest:
$(Q)$(MAKE) -C tools/testing/selftests run_tests
+kselftest-clean:
+ $(Q)$(MAKE) -C tools/testing/selftests clean
+
# ---------------------------------------------------------------------------
# Modules
@echo ' kselftest - Build and run kernel selftest (run as root)'
@echo ' Build, install, and boot kernel before'
@echo ' running kselftest on it'
+ @echo ' kselftest-clean - Remove all generated kselftest files'
@echo ''
@echo 'Kernel packaging:'
@$(MAKE) $(build)=$(package-dir) help
# Documentation targets
# ---------------------------------------------------------------------------
%docs: scripts_basic FORCE
- $(Q)$(MAKE) $(build)=scripts build_docproc
+ $(Q)$(MAKE) $(build)=scripts build_docproc build_check-lc_ctype
$(Q)$(MAKE) $(build)=Documentation/DocBook $@
else # KBUILD_EXTMOD
if VIRTUALIZATION
+config KVM_ARM_VGIC_V3
+ bool
+
config KVM
bool "Kernel-based Virtual Machine (KVM) support"
depends on OF
+ depends on !ARM64_16K_PAGES
select MMU_NOTIFIER
select PREEMPT_NOTIFIERS
select ANON_INODES
select KVM_VFIO
select HAVE_KVM_EVENTFD
select HAVE_KVM_IRQFD
+ select KVM_ARM_VGIC_V3
---help---
Support hosting virtualized guest machines.
+ We don't support KVM with 16K page tables yet, due to the multiple
+ levels of fake page tables.
If unsure, say N.
---help---
Provides host support for ARM processors.
+ source drivers/vhost/Kconfig
+
endif # VIRTUALIZATION
u32 arch_compat;
ulong pcr;
ulong dpdes; /* doorbell state (POWER8) */
- void *mpp_buffer; /* Micro Partition Prefetch buffer */
- bool mpp_buffer_is_valid;
ulong conferring_threads;
};
static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
static inline void kvm_arch_exit(void) {}
+ static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
+ static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
#endif /* __POWERPC_KVM_HOST_H__ */
}
/* Lastly try successively smaller sizes from the page allocator */
- while (!hpt && order > PPC_MIN_HPT_ORDER) {
+ /* Only do this if userspace didn't specify a size via ioctl */
+ while (!hpt && order > PPC_MIN_HPT_ORDER && !htab_orderp) {
hpt = __get_free_pages(GFP_KERNEL|__GFP_ZERO|__GFP_REPEAT|
__GFP_NOWARN, order - PAGE_SHIFT);
if (!hpt)
*/
local_irq_save(flags);
ptep = find_linux_pte_or_hugepte(current->mm->pgd,
- hva, NULL);
+ hva, NULL, NULL);
if (ptep) {
pte = kvmppc_read_update_linux_pte(ptep, 1);
if (pte_write(pte))
* So don't worry about THP collapse/split. Called
* Only in realmode, hence won't need irq_save/restore.
*/
- p = __find_linux_pte_or_hugepte(swapper_pg_dir, addr, NULL);
+ p = __find_linux_pte_or_hugepte(swapper_pg_dir, addr, NULL, NULL);
if (!p || !pte_present(*p))
return NULL;
addr = (pte_pfn(*p) << PAGE_SHIFT) | (addr & ~PAGE_MASK);
* retry via mmu_notifier_retry.
*/
if (realmode)
- ptep = __find_linux_pte_or_hugepte(pgdir, hva, &hpage_shift);
+ ptep = __find_linux_pte_or_hugepte(pgdir, hva, NULL,
+ &hpage_shift);
else {
local_irq_save(irq_flags);
- ptep = find_linux_pte_or_hugepte(pgdir, hva, &hpage_shift);
+ ptep = find_linux_pte_or_hugepte(pgdir, hva, NULL,
+ &hpage_shift);
}
if (ptep) {
pte_t pte;
note_hpte_modification(kvm, rev);
unlock_hpte(hpte, 0);
+ if (v & HPTE_V_ABSENT)
+ v = (v & ~HPTE_V_ABSENT) | HPTE_V_VALID;
hpret[0] = v;
hpret[1] = r;
return H_SUCCESS;
for (; tsize > BOOK3E_PAGESZ_4K; tsize -= 2) {
unsigned long gfn_start, gfn_end;
- tsize_pages = 1 << (tsize - 2);
+ tsize_pages = 1UL << (tsize - 2);
gfn_start = gfn & ~(tsize_pages - 1);
gfn_end = gfn_start + tsize_pages;
}
if (likely(!pfnmap)) {
- tsize_pages = 1 << (tsize + 10 - PAGE_SHIFT);
+ tsize_pages = 1UL << (tsize + 10 - PAGE_SHIFT);
pfn = gfn_to_pfn_memslot(slot, gfn);
if (is_error_noslot_pfn(pfn)) {
if (printk_ratelimit())
* can't run hence pfn won't change.
*/
local_irq_save(flags);
- ptep = find_linux_pte_or_hugepte(pgdir, hva, NULL);
+ ptep = find_linux_pte_or_hugepte(pgdir, hva, NULL, NULL);
if (ptep) {
pte_t pte = READ_ONCE(*ptep);
#include <linux/kvm.h>
#include <asm/debug.h>
#include <asm/cpu.h>
-#include <asm/fpu-internal.h>
+#include <asm/fpu/api.h>
#include <asm/isc.h>
#define KVM_MAX_VCPUS 64
static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
static inline void kvm_arch_flush_shadow_memslot(struct kvm *kvm,
struct kvm_memory_slot *slot) {}
+ static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
+ static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
#endif
if (gtod_high != 0)
return -EINVAL;
- VM_EVENT(kvm, 3, "SET: TOD extension: 0x%x\n", gtod_high);
+ VM_EVENT(kvm, 3, "SET: TOD extension: 0x%x", gtod_high);
return 0;
}
static int kvm_s390_set_tod_low(struct kvm *kvm, struct kvm_device_attr *attr)
{
- struct kvm_vcpu *cur_vcpu;
- unsigned int vcpu_idx;
- u64 host_tod, gtod;
- int r;
+ u64 gtod;
if (copy_from_user(>od, (void __user *)attr->addr, sizeof(gtod)))
return -EFAULT;
- r = store_tod_clock(&host_tod);
- if (r)
- return r;
-
- mutex_lock(&kvm->lock);
- preempt_disable();
- kvm->arch.epoch = gtod - host_tod;
- kvm_s390_vcpu_block_all(kvm);
- kvm_for_each_vcpu(vcpu_idx, cur_vcpu, kvm)
- cur_vcpu->arch.sie_block->epoch = kvm->arch.epoch;
- kvm_s390_vcpu_unblock_all(kvm);
- preempt_enable();
- mutex_unlock(&kvm->lock);
- VM_EVENT(kvm, 3, "SET: TOD base: 0x%llx\n", gtod);
+ kvm_s390_set_tod_clock(kvm, gtod);
+ VM_EVENT(kvm, 3, "SET: TOD base: 0x%llx", gtod);
return 0;
}
if (copy_to_user((void __user *)attr->addr, >od_high,
sizeof(gtod_high)))
return -EFAULT;
- VM_EVENT(kvm, 3, "QUERY: TOD extension: 0x%x\n", gtod_high);
+ VM_EVENT(kvm, 3, "QUERY: TOD extension: 0x%x", gtod_high);
return 0;
}
static int kvm_s390_get_tod_low(struct kvm *kvm, struct kvm_device_attr *attr)
{
- u64 host_tod, gtod;
- int r;
+ u64 gtod;
- r = store_tod_clock(&host_tod);
- if (r)
- return r;
-
- preempt_disable();
- gtod = host_tod + kvm->arch.epoch;
- preempt_enable();
+ gtod = kvm_s390_get_tod_clock_fast(kvm);
if (copy_to_user((void __user *)attr->addr, >od, sizeof(gtod)))
return -EFAULT;
- VM_EVENT(kvm, 3, "QUERY: TOD base: 0x%llx\n", gtod);
+ VM_EVENT(kvm, 3, "QUERY: TOD base: 0x%llx", gtod);
return 0;
}
if (!kvm->arch.sca)
goto out_err;
spin_lock(&kvm_lock);
- sca_offset = (sca_offset + 16) & 0x7f0;
+ sca_offset += 16;
+ if (sca_offset + sizeof(struct sca_block) > PAGE_SIZE)
+ sca_offset = 0;
kvm->arch.sca = (struct sca_block *) ((char *) kvm->arch.sca + sca_offset);
spin_unlock(&kvm_lock);
static inline void save_fpu_to(struct fpu *dst)
{
dst->fpc = current->thread.fpu.fpc;
- dst->flags = current->thread.fpu.flags;
dst->regs = current->thread.fpu.regs;
}
static inline void load_fpu_from(struct fpu *from)
{
current->thread.fpu.fpc = from->fpc;
- current->thread.fpu.flags = from->flags;
current->thread.fpu.regs = from->regs;
}
if (test_kvm_facility(vcpu->kvm, 129)) {
current->thread.fpu.fpc = vcpu->run->s.regs.fpc;
- current->thread.fpu.flags = FPU_USE_VX;
/*
* Use the register save area in the SIE-control block
* for register restore and save in kvm_arch_vcpu_put()
*/
current->thread.fpu.vxrs =
(__vector128 *)&vcpu->run->s.regs.vrs;
- /* Always enable the vector extension for KVM */
- __ctl_set_vx();
} else
load_fpu_from(&vcpu->arch.guest_fpregs);
return 0;
}
+ void kvm_s390_set_tod_clock(struct kvm *kvm, u64 tod)
+ {
+ struct kvm_vcpu *vcpu;
+ int i;
+
+ mutex_lock(&kvm->lock);
+ preempt_disable();
+ kvm->arch.epoch = tod - get_tod_clock();
+ kvm_s390_vcpu_block_all(kvm);
+ kvm_for_each_vcpu(i, vcpu, kvm)
+ vcpu->arch.sie_block->epoch = kvm->arch.epoch;
+ kvm_s390_vcpu_unblock_all(kvm);
+ preempt_enable();
+ mutex_unlock(&kvm->lock);
+ }
+
/**
* kvm_arch_fault_in_page - fault-in guest page if necessary
* @vcpu: The corresponding virtual cpu
* registers and the FPC value and store them in the
* guest_fpregs structure.
*/
- WARN_ON(!is_vx_task(current)); /* XXX remove later */
vcpu->arch.guest_fpregs.fpc = current->thread.fpu.fpc;
convert_vx_to_fp(vcpu->arch.guest_fpregs.fprs,
current->thread.fpu.vxrs);
int feature_bit = 0;
u32 ret = XSAVE_HDR_SIZE + XSAVE_HDR_OFFSET;
- xstate_bv &= XSTATE_EXTEND_MASK;
+ xstate_bv &= XFEATURE_MASK_EXTEND;
while (xstate_bv) {
if (xstate_bv & 0x1) {
u32 eax, ebx, ecx, edx, offset;
u64 xcr0 = KVM_SUPPORTED_XCR0 & host_xcr0;
if (!kvm_x86_ops->mpx_supported())
- xcr0 &= ~(XSTATE_BNDREGS | XSTATE_BNDCSR);
+ xcr0 &= ~(XFEATURE_MASK_BNDREGS | XFEATURE_MASK_BNDCSR);
return xcr0;
}
F(FSGSBASE) | F(BMI1) | F(HLE) | F(AVX2) | F(SMEP) |
F(BMI2) | F(ERMS) | f_invpcid | F(RTM) | f_mpx | F(RDSEED) |
F(ADX) | F(SMAP) | F(AVX512F) | F(AVX512PF) | F(AVX512ER) |
- F(AVX512CD);
+ F(AVX512CD) | F(CLFLUSHOPT) | F(CLWB) | F(PCOMMIT);
/* cpuid 0xD.1.eax */
const u32 kvm_supported_word10_x86_features =
#include <linux/pci.h>
#include <linux/timekeeper_internal.h>
#include <linux/pvclock_gtod.h>
+ #include <linux/kvm_irqfd.h>
+ #include <linux/irqbypass.h>
#include <trace/events/kvm.h>
#define CREATE_TRACE_POINTS
#include <asm/fpu/internal.h> /* Ugh! */
#include <asm/pvclock.h>
#include <asm/div64.h>
+ #include <asm/irq_remapping.h>
#define MAX_IO_MSRS 256
#define KVM_MAX_MCE_BANKS 32
/* Only support XCR_XFEATURE_ENABLED_MASK(xcr0) now */
if (index != XCR_XFEATURE_ENABLED_MASK)
return 1;
- if (!(xcr0 & XSTATE_FP))
+ if (!(xcr0 & XFEATURE_MASK_FP))
return 1;
- if ((xcr0 & XSTATE_YMM) && !(xcr0 & XSTATE_SSE))
+ if ((xcr0 & XFEATURE_MASK_YMM) && !(xcr0 & XFEATURE_MASK_SSE))
return 1;
/*
* saving. However, xcr0 bit 0 is always set, even if the
* emulated CPU does not support XSAVE (see fx_init).
*/
- valid_bits = vcpu->arch.guest_supported_xcr0 | XSTATE_FP;
+ valid_bits = vcpu->arch.guest_supported_xcr0 | XFEATURE_MASK_FP;
if (xcr0 & ~valid_bits)
return 1;
- if ((!(xcr0 & XSTATE_BNDREGS)) != (!(xcr0 & XSTATE_BNDCSR)))
+ if ((!(xcr0 & XFEATURE_MASK_BNDREGS)) !=
+ (!(xcr0 & XFEATURE_MASK_BNDCSR)))
return 1;
- if (xcr0 & XSTATE_AVX512) {
- if (!(xcr0 & XSTATE_YMM))
+ if (xcr0 & XFEATURE_MASK_AVX512) {
+ if (!(xcr0 & XFEATURE_MASK_YMM))
return 1;
- if ((xcr0 & XSTATE_AVX512) != XSTATE_AVX512)
+ if ((xcr0 & XFEATURE_MASK_AVX512) != XFEATURE_MASK_AVX512)
return 1;
}
kvm_put_guest_xcr0(vcpu);
vcpu->arch.xcr0 = xcr0;
- if ((xcr0 ^ old_xcr0) & XSTATE_EXTEND_MASK)
+ if ((xcr0 ^ old_xcr0) & XFEATURE_MASK_EXTEND)
kvm_update_cpuid(vcpu);
return 0;
}
{
if (cr8 & CR8_RESERVED_BITS)
return 1;
- if (irqchip_in_kernel(vcpu->kvm))
+ if (lapic_in_kernel(vcpu))
kvm_lapic_set_tpr(vcpu, cr8);
else
vcpu->arch.cr8 = cr8;
unsigned long kvm_get_cr8(struct kvm_vcpu *vcpu)
{
- if (irqchip_in_kernel(vcpu->kvm))
+ if (lapic_in_kernel(vcpu))
return kvm_lapic_get_cr8(vcpu);
else
return vcpu->arch.cr8;
HV_X64_MSR_TIME_REF_COUNT, HV_X64_MSR_REFERENCE_TSC,
HV_X64_MSR_CRASH_P0, HV_X64_MSR_CRASH_P1, HV_X64_MSR_CRASH_P2,
HV_X64_MSR_CRASH_P3, HV_X64_MSR_CRASH_P4, HV_X64_MSR_CRASH_CTL,
+ HV_X64_MSR_RESET,
+ HV_X64_MSR_VP_INDEX,
+ HV_X64_MSR_VP_RUNTIME,
HV_X64_MSR_APIC_ASSIST_PAGE, MSR_KVM_ASYNC_PF_EN, MSR_KVM_STEAL_TIME,
MSR_KVM_PV_EOI_EN,
static void record_steal_time(struct kvm_vcpu *vcpu)
{
+ accumulate_steal_time(vcpu);
+
if (!(vcpu->arch.st.msr_val & KVM_MSR_ENABLED))
return;
if (!(data & KVM_MSR_ENABLED))
break;
- vcpu->arch.st.last_steal = current->sched_info.run_delay;
-
- preempt_disable();
- accumulate_steal_time(vcpu);
- preempt_enable();
-
kvm_make_request(KVM_REQ_STEAL_UPDATE, vcpu);
break;
case KVM_CAP_ENABLE_CAP_VM:
case KVM_CAP_DISABLE_QUIRKS:
case KVM_CAP_SET_BOOT_CPU_ID:
+ case KVM_CAP_SPLIT_IRQCHIP:
#ifdef CONFIG_KVM_DEVICE_ASSIGNMENT
case KVM_CAP_ASSIGN_DEV_IRQ:
case KVM_CAP_PCI_2_3:
vcpu->cpu = cpu;
}
- accumulate_steal_time(vcpu);
kvm_make_request(KVM_REQ_STEAL_UPDATE, vcpu);
}
{
if (irq->irq >= KVM_NR_INTERRUPTS)
return -EINVAL;
- if (irqchip_in_kernel(vcpu->kvm))
+
+ if (!irqchip_in_kernel(vcpu->kvm)) {
+ kvm_queue_interrupt(vcpu, irq->irq, false);
+ kvm_make_request(KVM_REQ_EVENT, vcpu);
+ return 0;
+ }
+
+ /*
+ * With in-kernel LAPIC, we only use this to inject EXTINT, so
+ * fail for in-kernel 8259.
+ */
+ if (pic_in_kernel(vcpu->kvm))
return -ENXIO;
- kvm_queue_interrupt(vcpu, irq->irq, false);
- kvm_make_request(KVM_REQ_EVENT, vcpu);
+ if (vcpu->arch.pending_external_vector != -1)
+ return -EEXIST;
+ vcpu->arch.pending_external_vector = irq->irq;
return 0;
}
* Copy each region from the possibly compacted offset to the
* non-compacted offset.
*/
- valid = xstate_bv & ~XSTATE_FPSSE;
+ valid = xstate_bv & ~XFEATURE_MASK_FPSSE;
while (valid) {
u64 feature = valid & -valid;
int index = fls64(feature) - 1;
* Copy each region from the non-compacted offset to the
* possibly compacted offset.
*/
- valid = xstate_bv & ~XSTATE_FPSSE;
+ valid = xstate_bv & ~XFEATURE_MASK_FPSSE;
while (valid) {
u64 feature = valid & -valid;
int index = fls64(feature) - 1;
&vcpu->arch.guest_fpu.state.fxsave,
sizeof(struct fxregs_state));
*(u64 *)&guest_xsave->region[XSAVE_HDR_OFFSET / sizeof(u32)] =
- XSTATE_FPSSE;
+ XFEATURE_MASK_FPSSE;
}
}
return -EINVAL;
load_xsave(vcpu, (u8 *)guest_xsave->region);
} else {
- if (xstate_bv & ~XSTATE_FPSSE)
+ if (xstate_bv & ~XFEATURE_MASK_FPSSE)
return -EINVAL;
memcpy(&vcpu->arch.guest_fpu.state.fxsave,
guest_xsave->region, sizeof(struct fxregs_state));
struct kvm_vapic_addr va;
r = -EINVAL;
- if (!irqchip_in_kernel(vcpu->kvm))
+ if (!lapic_in_kernel(vcpu))
goto out;
r = -EFAULT;
if (copy_from_user(&va, argp, sizeof va))
kvm->arch.disabled_quirks = cap->args[0];
r = 0;
break;
+ case KVM_CAP_SPLIT_IRQCHIP: {
+ mutex_lock(&kvm->lock);
+ r = -EINVAL;
+ if (cap->args[0] > MAX_NR_RESERVED_IOAPIC_PINS)
+ goto split_irqchip_unlock;
+ r = -EEXIST;
+ if (irqchip_in_kernel(kvm))
+ goto split_irqchip_unlock;
+ if (atomic_read(&kvm->online_vcpus))
+ goto split_irqchip_unlock;
+ r = kvm_setup_empty_irq_routing(kvm);
+ if (r)
+ goto split_irqchip_unlock;
+ /* Pairs with irqchip_in_kernel. */
+ smp_wmb();
+ kvm->arch.irqchip_split = true;
+ kvm->arch.nr_reserved_ioapic_pins = cap->args[0];
+ r = 0;
+ split_irqchip_unlock:
+ mutex_unlock(&kvm->lock);
+ break;
+ }
default:
r = -EINVAL;
break;
}
r = -ENXIO;
- if (!irqchip_in_kernel(kvm))
+ if (!irqchip_in_kernel(kvm) || irqchip_split(kvm))
goto get_irqchip_out;
r = kvm_vm_ioctl_get_irqchip(kvm, chip);
if (r)
}
r = -ENXIO;
- if (!irqchip_in_kernel(kvm))
+ if (!irqchip_in_kernel(kvm) || irqchip_split(kvm))
goto set_irqchip_out;
r = kvm_vm_ioctl_set_irqchip(kvm, chip);
if (r)
int kvm_vcpu_halt(struct kvm_vcpu *vcpu)
{
++vcpu->stat.halt_exits;
- if (irqchip_in_kernel(vcpu->kvm)) {
+ if (lapic_in_kernel(vcpu)) {
vcpu->arch.mp_state = KVM_MP_STATE_HALTED;
return 1;
} else {
*/
static int dm_request_for_irq_injection(struct kvm_vcpu *vcpu)
{
- return (!irqchip_in_kernel(vcpu->kvm) && !kvm_cpu_has_interrupt(vcpu) &&
- vcpu->run->request_interrupt_window &&
- kvm_arch_interrupt_allowed(vcpu));
+ if (!vcpu->run->request_interrupt_window || pic_in_kernel(vcpu->kvm))
+ return false;
+
+ if (kvm_cpu_has_interrupt(vcpu))
+ return false;
+
+ return (irqchip_split(vcpu->kvm)
+ ? kvm_apic_accept_pic_intr(vcpu)
+ : kvm_arch_interrupt_allowed(vcpu));
}
static void post_kvm_run_save(struct kvm_vcpu *vcpu)
kvm_run->flags = is_smm(vcpu) ? KVM_RUN_X86_SMM : 0;
kvm_run->cr8 = kvm_get_cr8(vcpu);
kvm_run->apic_base = kvm_get_apic_base(vcpu);
- if (irqchip_in_kernel(vcpu->kvm))
- kvm_run->ready_for_interrupt_injection = 1;
- else
+ if (!irqchip_in_kernel(vcpu->kvm))
kvm_run->ready_for_interrupt_injection =
kvm_arch_interrupt_allowed(vcpu) &&
!kvm_cpu_has_interrupt(vcpu) &&
!kvm_event_needs_reinjection(vcpu);
+ else if (!pic_in_kernel(vcpu->kvm))
+ kvm_run->ready_for_interrupt_injection =
+ kvm_apic_accept_pic_intr(vcpu) &&
+ !kvm_cpu_has_interrupt(vcpu);
+ else
+ kvm_run->ready_for_interrupt_injection = 1;
}
static void update_cr8_intercept(struct kvm_vcpu *vcpu)
static void vcpu_scan_ioapic(struct kvm_vcpu *vcpu)
{
- u64 eoi_exit_bitmap[4];
- u32 tmr[8];
-
if (!kvm_apic_hw_enabled(vcpu->arch.apic))
return;
- memset(eoi_exit_bitmap, 0, 32);
- memset(tmr, 0, 32);
+ memset(vcpu->arch.eoi_exit_bitmap, 0, 256 / 8);
- kvm_ioapic_scan_entry(vcpu, eoi_exit_bitmap, tmr);
- kvm_x86_ops->load_eoi_exitmap(vcpu, eoi_exit_bitmap);
- kvm_apic_update_tmr(vcpu, tmr);
+ if (irqchip_split(vcpu->kvm))
+ kvm_scan_ioapic_routes(vcpu, vcpu->arch.eoi_exit_bitmap);
+ else {
+ kvm_x86_ops->sync_pir_to_irr(vcpu);
+ kvm_ioapic_scan_entry(vcpu, vcpu->arch.eoi_exit_bitmap);
+ }
+ kvm_x86_ops->load_eoi_exitmap(vcpu);
}
static void kvm_vcpu_flush_tlb(struct kvm_vcpu *vcpu)
{
struct page *page = NULL;
- if (!irqchip_in_kernel(vcpu->kvm))
+ if (!lapic_in_kernel(vcpu))
return;
if (!kvm_x86_ops->set_apic_access_page_addr)
static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
{
int r;
- bool req_int_win = !irqchip_in_kernel(vcpu->kvm) &&
+ bool req_int_win = !lapic_in_kernel(vcpu) &&
vcpu->run->request_interrupt_window;
bool req_immediate_exit = false;
kvm_pmu_handle_event(vcpu);
if (kvm_check_request(KVM_REQ_PMI, vcpu))
kvm_pmu_deliver_pmi(vcpu);
+ if (kvm_check_request(KVM_REQ_IOAPIC_EOI_EXIT, vcpu)) {
+ BUG_ON(vcpu->arch.pending_ioapic_eoi > 255);
+ if (test_bit(vcpu->arch.pending_ioapic_eoi,
+ (void *) vcpu->arch.eoi_exit_bitmap)) {
+ vcpu->run->exit_reason = KVM_EXIT_IOAPIC_EOI;
+ vcpu->run->eoi.vector =
+ vcpu->arch.pending_ioapic_eoi;
+ r = 0;
+ goto out;
+ }
+ }
if (kvm_check_request(KVM_REQ_SCAN_IOAPIC, vcpu))
vcpu_scan_ioapic(vcpu);
if (kvm_check_request(KVM_REQ_APIC_PAGE_RELOAD, vcpu))
r = 0;
goto out;
}
+ if (kvm_check_request(KVM_REQ_HV_RESET, vcpu)) {
+ vcpu->run->exit_reason = KVM_EXIT_SYSTEM_EVENT;
+ vcpu->run->system_event.type = KVM_SYSTEM_EVENT_RESET;
+ r = 0;
+ goto out;
+ }
+ }
+
+ /*
+ * KVM_REQ_EVENT is not set when posted interrupts are set by
+ * VT-d hardware, so we have to update RVI unconditionally.
+ */
+ if (kvm_lapic_enabled(vcpu)) {
+ /*
+ * Update architecture specific hints for APIC
+ * virtual interrupt delivery.
+ */
+ if (kvm_x86_ops->hwapic_irr_update)
+ kvm_x86_ops->hwapic_irr_update(vcpu,
+ kvm_lapic_find_highest_irr(vcpu));
}
if (kvm_check_request(KVM_REQ_EVENT, vcpu) || req_int_win) {
kvm_x86_ops->enable_irq_window(vcpu);
if (kvm_lapic_enabled(vcpu)) {
- /*
- * Update architecture specific hints for APIC
- * virtual interrupt delivery.
- */
- if (kvm_x86_ops->hwapic_irr_update)
- kvm_x86_ops->hwapic_irr_update(vcpu,
- kvm_lapic_find_highest_irr(vcpu));
update_cr8_intercept(vcpu);
kvm_lapic_sync_to_vapic(vcpu);
}
static inline int vcpu_block(struct kvm *kvm, struct kvm_vcpu *vcpu)
{
- if (!kvm_arch_vcpu_runnable(vcpu)) {
+ if (!kvm_arch_vcpu_runnable(vcpu) &&
+ (!kvm_x86_ops->pre_block || kvm_x86_ops->pre_block(vcpu) == 0)) {
srcu_read_unlock(&kvm->srcu, vcpu->srcu_idx);
kvm_vcpu_block(vcpu);
vcpu->srcu_idx = srcu_read_lock(&kvm->srcu);
+
+ if (kvm_x86_ops->post_block)
+ kvm_x86_ops->post_block(vcpu);
+
if (!kvm_check_request(KVM_REQ_UNHALT, vcpu))
return 1;
}
vcpu->srcu_idx = srcu_read_lock(&kvm->srcu);
for (;;) {
- if (kvm_vcpu_running(vcpu))
+ if (kvm_vcpu_running(vcpu)) {
r = vcpu_enter_guest(vcpu);
- else
+ } else {
r = vcpu_block(kvm, vcpu);
+ }
+
if (r <= 0)
break;
kvm_inject_pending_timer_irqs(vcpu);
if (dm_request_for_irq_injection(vcpu)) {
- r = -EINTR;
- vcpu->run->exit_reason = KVM_EXIT_INTR;
+ r = 0;
+ vcpu->run->exit_reason = KVM_EXIT_IRQ_WINDOW_OPEN;
++vcpu->stat.request_irq_exits;
break;
}
}
/* re-sync apic's tpr */
- if (!irqchip_in_kernel(vcpu->kvm)) {
+ if (!lapic_in_kernel(vcpu)) {
if (kvm_set_cr8(vcpu, kvm_run->cr8) != 0) {
r = -EINVAL;
goto out;
/*
* Ensure guest xcr0 is valid for loading
*/
- vcpu->arch.xcr0 = XSTATE_FP;
+ vcpu->arch.xcr0 = XFEATURE_MASK_FP;
vcpu->arch.cr0 |= X86_CR0_ET;
}
bool kvm_vcpu_compatible(struct kvm_vcpu *vcpu)
{
- return irqchip_in_kernel(vcpu->kvm) == (vcpu->arch.apic != NULL);
+ return irqchip_in_kernel(vcpu->kvm) == lapic_in_kernel(vcpu);
}
struct static_key kvm_no_apic_vcpu __read_mostly;
kvm_async_pf_hash_reset(vcpu);
kvm_pmu_init(vcpu);
+ vcpu->arch.pending_external_vector = -1;
+
return 0;
fail_free_mce_banks:
kvm_mmu_destroy(vcpu);
srcu_read_unlock(&vcpu->kvm->srcu, idx);
free_page((unsigned long)vcpu->arch.pio_data);
- if (!irqchip_in_kernel(vcpu->kvm))
+ if (!lapic_in_kernel(vcpu))
static_key_slow_dec(&kvm_no_apic_vcpu);
}
}
EXPORT_SYMBOL_GPL(kvm_arch_has_noncoherent_dma);
+ int kvm_arch_irq_bypass_add_producer(struct irq_bypass_consumer *cons,
+ struct irq_bypass_producer *prod)
+ {
+ struct kvm_kernel_irqfd *irqfd =
+ container_of(cons, struct kvm_kernel_irqfd, consumer);
+
+ if (kvm_x86_ops->update_pi_irte) {
+ irqfd->producer = prod;
+ return kvm_x86_ops->update_pi_irte(irqfd->kvm,
+ prod->irq, irqfd->gsi, 1);
+ }
+
+ return -EINVAL;
+ }
+
+ void kvm_arch_irq_bypass_del_producer(struct irq_bypass_consumer *cons,
+ struct irq_bypass_producer *prod)
+ {
+ int ret;
+ struct kvm_kernel_irqfd *irqfd =
+ container_of(cons, struct kvm_kernel_irqfd, consumer);
+
+ if (!kvm_x86_ops->update_pi_irte) {
+ WARN_ON(irqfd->producer != NULL);
+ return;
+ }
+
+ WARN_ON(irqfd->producer != prod);
+ irqfd->producer = NULL;
+
+ /*
+ * When producer of consumer is unregistered, we change back to
+ * remapped mode, so we can re-use the current implementation
+ * when the irq is masked/disabed or the consumer side (KVM
+ * int this case doesn't want to receive the interrupts.
+ */
+ ret = kvm_x86_ops->update_pi_irte(irqfd->kvm, prod->irq, irqfd->gsi, 0);
+ if (ret)
+ printk(KERN_INFO "irq bypass consumer (token %p) unregistration"
+ " fails: %d\n", irqfd->consumer.token, ret);
+ }
+
+ int kvm_arch_update_irqfd_routing(struct kvm *kvm, unsigned int host_irq,
+ uint32_t guest_irq, bool set)
+ {
+ if (!kvm_x86_ops->update_pi_irte)
+ return -EINVAL;
+
+ return kvm_x86_ops->update_pi_irte(kvm, host_irq, guest_irq, set);
+ }
+
EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_exit);
+ EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_fast_mmio);
EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_inj_virq);
EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_page_fault);
EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_msr);
EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_write_tsc_offset);
EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_ple_window);
EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_pml_full);
+ EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_pi_irte_update);
If you don't know what to do here, say N.
+menuconfig VFIO_NOIOMMU
+ bool "VFIO No-IOMMU support"
+ depends on VFIO
+ help
+ VFIO is built on the ability to isolate devices using the IOMMU.
+ Only with an IOMMU can userspace access to DMA capable devices be
+ considered secure. VFIO No-IOMMU mode enables IOMMU groups for
+ devices without IOMMU backing for the purpose of re-using the VFIO
+ infrastructure in a non-secure mode. Use of this mode will result
+ in an unsupportable kernel and will therefore taint the kernel.
+ Device assignment to virtual machines is also not possible with
+ this mode since there is no IOMMU to provide DMA translation.
+
+ If you don't know what to do here, say N.
+
source "drivers/vfio/pci/Kconfig"
source "drivers/vfio/platform/Kconfig"
+ source "virt/lib/Kconfig"
struct vgic_ops {
struct vgic_lr (*get_lr)(const struct kvm_vcpu *, int);
void (*set_lr)(struct kvm_vcpu *, int, struct vgic_lr);
- void (*sync_lr_elrsr)(struct kvm_vcpu *, int, struct vgic_lr);
u64 (*get_elrsr)(const struct kvm_vcpu *vcpu);
u64 (*get_eisr)(const struct kvm_vcpu *vcpu);
void (*clear_eisr)(struct kvm_vcpu *vcpu);
u32 virt_irq;
u32 phys_irq;
u32 irq;
- bool active;
};
struct irq_phys_map_entry {
};
struct vgic_v3_cpu_if {
-#ifdef CONFIG_ARM_GIC_V3
+#ifdef CONFIG_KVM_ARM_VGIC_V3
u32 vgic_hcr;
u32 vgic_vmcr;
u32 vgic_sre; /* Restored only, change ignored */
};
struct vgic_cpu {
- /* per IRQ to LR mapping */
- u8 *vgic_irq_lr_map;
-
/* Pending/active/both interrupts on this VCPU */
- DECLARE_BITMAP( pending_percpu, VGIC_NR_PRIVATE_IRQS);
- DECLARE_BITMAP( active_percpu, VGIC_NR_PRIVATE_IRQS);
- DECLARE_BITMAP( pend_act_percpu, VGIC_NR_PRIVATE_IRQS);
+ DECLARE_BITMAP(pending_percpu, VGIC_NR_PRIVATE_IRQS);
+ DECLARE_BITMAP(active_percpu, VGIC_NR_PRIVATE_IRQS);
+ DECLARE_BITMAP(pend_act_percpu, VGIC_NR_PRIVATE_IRQS);
/* Pending/active/both shared interrupts, dynamically sized */
unsigned long *pending_shared;
unsigned long *active_shared;
unsigned long *pend_act_shared;
- /* Bitmap of used/free list registers */
- DECLARE_BITMAP( lr_used, VGIC_V2_MAX_LRS);
-
/* Number of list registers on this CPU */
int nr_lr;
struct irq_phys_map *kvm_vgic_map_phys_irq(struct kvm_vcpu *vcpu,
int virt_irq, int irq);
int kvm_vgic_unmap_phys_irq(struct kvm_vcpu *vcpu, struct irq_phys_map *map);
- bool kvm_vgic_get_phys_irq_active(struct irq_phys_map *map);
- void kvm_vgic_set_phys_irq_active(struct irq_phys_map *map, bool active);
#define irqchip_in_kernel(k) (!!((k)->arch.vgic.in_kernel))
#define vgic_initialized(k) (!!((k)->arch.vgic.nr_cpus))
int vgic_v2_probe(struct device_node *vgic_node,
const struct vgic_ops **ops,
const struct vgic_params **params);
-#ifdef CONFIG_ARM_GIC_V3
+#ifdef CONFIG_KVM_ARM_VGIC_V3
int vgic_v3_probe(struct device_node *vgic_node,
const struct vgic_ops **ops,
const struct vgic_params **params);
#include <asm/kvm.h>
#include <kvm/iodev.h>
+ #define CREATE_TRACE_POINTS
+ #include "trace.h"
+
/*
* How the whole thing works (courtesy of Christoffer Dall):
*
#include "vgic.h"
static void vgic_retire_disabled_irqs(struct kvm_vcpu *vcpu);
- static void vgic_retire_lr(int lr_nr, int irq, struct kvm_vcpu *vcpu);
+ static void vgic_retire_lr(int lr_nr, struct kvm_vcpu *vcpu);
static struct vgic_lr vgic_get_lr(const struct kvm_vcpu *vcpu, int lr);
static void vgic_set_lr(struct kvm_vcpu *vcpu, int lr, struct vgic_lr lr_desc);
+ static u64 vgic_get_elrsr(struct kvm_vcpu *vcpu);
static struct irq_phys_map *vgic_irq_map_search(struct kvm_vcpu *vcpu,
int virt_irq);
+ static int compute_pending_for_cpu(struct kvm_vcpu *vcpu);
static const struct vgic_ops *vgic_ops;
static const struct vgic_params *vgic;
struct vgic_dist *dist = &vcpu->kvm->arch.vgic;
vgic_bitmap_set_irq_val(&dist->irq_soft_pend, vcpu->vcpu_id, irq, 0);
+ if (!vgic_dist_irq_get_level(vcpu, irq)) {
+ vgic_dist_irq_clear_pending(vcpu, irq);
+ if (!compute_pending_for_cpu(vcpu))
+ clear_bit(vcpu->vcpu_id, dist->irq_pending_on_cpu);
+ }
}
static int vgic_dist_irq_is_pending(struct kvm_vcpu *vcpu, int irq)
return false;
}
- /*
- * If a mapped interrupt's state has been modified by the guest such that it
- * is no longer active or pending, without it have gone through the sync path,
- * then the map->active field must be cleared so the interrupt can be taken
- * again.
- */
- static void vgic_handle_clear_mapped_irq(struct kvm_vcpu *vcpu)
- {
- struct vgic_cpu *vgic_cpu = &vcpu->arch.vgic_cpu;
- struct list_head *root;
- struct irq_phys_map_entry *entry;
- struct irq_phys_map *map;
-
- rcu_read_lock();
-
- /* Check for PPIs */
- root = &vgic_cpu->irq_phys_map_list;
- list_for_each_entry_rcu(entry, root, entry) {
- map = &entry->map;
-
- if (!vgic_dist_irq_is_pending(vcpu, map->virt_irq) &&
- !vgic_irq_is_active(vcpu, map->virt_irq))
- map->active = false;
- }
-
- rcu_read_unlock();
- }
-
bool vgic_handle_clear_pending_reg(struct kvm *kvm,
struct kvm_exit_mmio *mmio,
phys_addr_t offset, int vcpu_id)
vcpu_id, offset);
vgic_reg_access(mmio, reg, offset, mode);
- vgic_handle_clear_mapped_irq(kvm_get_vcpu(kvm, vcpu_id));
vgic_update_state(kvm);
return true;
}
ACCESS_READ_VALUE | ACCESS_WRITE_CLEARBIT);
if (mmio->is_write) {
- vgic_handle_clear_mapped_irq(kvm_get_vcpu(kvm, vcpu_id));
vgic_update_state(kvm);
return true;
}
vgic_reg_access(mmio, &val, offset,
ACCESS_READ_VALUE | ACCESS_WRITE_VALUE);
if (mmio->is_write) {
- if (offset < 8) {
- *reg = ~0U; /* Force PPIs/SGIs to 1 */
+ /* Ignore writes to read-only SGI and PPI bits */
+ if (offset < 8)
return false;
- }
val = vgic_cfg_compress(val);
if (offset & 4) {
void vgic_unqueue_irqs(struct kvm_vcpu *vcpu)
{
struct vgic_cpu *vgic_cpu = &vcpu->arch.vgic_cpu;
+ u64 elrsr = vgic_get_elrsr(vcpu);
+ unsigned long *elrsr_ptr = u64_to_bitmask(&elrsr);
int i;
- for_each_set_bit(i, vgic_cpu->lr_used, vgic_cpu->nr_lr) {
+ for_each_clear_bit(i, elrsr_ptr, vgic_cpu->nr_lr) {
struct vgic_lr lr = vgic_get_lr(vcpu, i);
/*
* interrupt then move the active state to the
* distributor tracking bit.
*/
- if (lr.state & LR_STATE_ACTIVE) {
+ if (lr.state & LR_STATE_ACTIVE)
vgic_irq_set_active(vcpu, lr.irq);
- lr.state &= ~LR_STATE_ACTIVE;
- }
/*
* Reestablish the pending state on the distributor and the
- * CPU interface. It may have already been pending, but that
- * is fine, then we are only setting a few bits that were
- * already set.
+ * CPU interface and mark the LR as free for other use.
*/
- if (lr.state & LR_STATE_PENDING) {
- vgic_dist_irq_set_pending(vcpu, lr.irq);
- lr.state &= ~LR_STATE_PENDING;
- }
-
- vgic_set_lr(vcpu, i, lr);
-
- /*
- * Mark the LR as free for other use.
- */
- BUG_ON(lr.state & LR_STATE_MASK);
- vgic_retire_lr(i, lr.irq, vcpu);
- vgic_irq_clear_queued(vcpu, lr.irq);
+ vgic_retire_lr(i, vcpu);
/* Finally update the VGIC state. */
vgic_update_state(vcpu->kvm);
vgic_ops->set_lr(vcpu, lr, vlr);
}
- static void vgic_sync_lr_elrsr(struct kvm_vcpu *vcpu, int lr,
- struct vgic_lr vlr)
- {
- vgic_ops->sync_lr_elrsr(vcpu, lr, vlr);
- }
-
static inline u64 vgic_get_elrsr(struct kvm_vcpu *vcpu)
{
return vgic_ops->get_elrsr(vcpu);
vgic_ops->enable(vcpu);
}
- static void vgic_retire_lr(int lr_nr, int irq, struct kvm_vcpu *vcpu)
+ static void vgic_retire_lr(int lr_nr, struct kvm_vcpu *vcpu)
{
- struct vgic_cpu *vgic_cpu = &vcpu->arch.vgic_cpu;
struct vgic_lr vlr = vgic_get_lr(vcpu, lr_nr);
+ vgic_irq_clear_queued(vcpu, vlr.irq);
+
/*
* We must transfer the pending state back to the distributor before
* retiring the LR, otherwise we may loose edge-triggered interrupts.
*/
if (vlr.state & LR_STATE_PENDING) {
- vgic_dist_irq_set_pending(vcpu, irq);
+ vgic_dist_irq_set_pending(vcpu, vlr.irq);
vlr.hwirq = 0;
}
vlr.state = 0;
vgic_set_lr(vcpu, lr_nr, vlr);
- clear_bit(lr_nr, vgic_cpu->lr_used);
- vgic_cpu->vgic_irq_lr_map[irq] = LR_EMPTY;
- vgic_sync_lr_elrsr(vcpu, lr_nr, vlr);
}
/*
*/
static void vgic_retire_disabled_irqs(struct kvm_vcpu *vcpu)
{
- struct vgic_cpu *vgic_cpu = &vcpu->arch.vgic_cpu;
+ u64 elrsr = vgic_get_elrsr(vcpu);
+ unsigned long *elrsr_ptr = u64_to_bitmask(&elrsr);
int lr;
- for_each_set_bit(lr, vgic_cpu->lr_used, vgic->nr_lr) {
+ for_each_clear_bit(lr, elrsr_ptr, vgic->nr_lr) {
struct vgic_lr vlr = vgic_get_lr(vcpu, lr);
- if (!vgic_irq_is_enabled(vcpu, vlr.irq)) {
- vgic_retire_lr(lr, vlr.irq, vcpu);
- if (vgic_irq_is_queued(vcpu, vlr.irq))
- vgic_irq_clear_queued(vcpu, vlr.irq);
- }
+ if (!vgic_irq_is_enabled(vcpu, vlr.irq))
+ vgic_retire_lr(lr, vcpu);
}
}
}
vgic_set_lr(vcpu, lr_nr, vlr);
- vgic_sync_lr_elrsr(vcpu, lr_nr, vlr);
}
/*
*/
bool vgic_queue_irq(struct kvm_vcpu *vcpu, u8 sgi_source_id, int irq)
{
- struct vgic_cpu *vgic_cpu = &vcpu->arch.vgic_cpu;
struct vgic_dist *dist = &vcpu->kvm->arch.vgic;
+ u64 elrsr = vgic_get_elrsr(vcpu);
+ unsigned long *elrsr_ptr = u64_to_bitmask(&elrsr);
struct vgic_lr vlr;
int lr;
kvm_debug("Queue IRQ%d\n", irq);
- lr = vgic_cpu->vgic_irq_lr_map[irq];
-
/* Do we have an active interrupt for the same CPUID? */
- if (lr != LR_EMPTY) {
+ for_each_clear_bit(lr, elrsr_ptr, vgic->nr_lr) {
vlr = vgic_get_lr(vcpu, lr);
- if (vlr.source == sgi_source_id) {
+ if (vlr.irq == irq && vlr.source == sgi_source_id) {
kvm_debug("LR%d piggyback for IRQ%d\n", lr, vlr.irq);
- BUG_ON(!test_bit(lr, vgic_cpu->lr_used));
vgic_queue_irq_to_lr(vcpu, irq, lr, vlr);
return true;
}
}
/* Try to use another LR for this interrupt */
- lr = find_first_zero_bit((unsigned long *)vgic_cpu->lr_used,
- vgic->nr_lr);
+ lr = find_first_bit(elrsr_ptr, vgic->nr_lr);
if (lr >= vgic->nr_lr)
return false;
kvm_debug("LR%d allocated for IRQ%d %x\n", lr, irq, sgi_source_id);
- vgic_cpu->vgic_irq_lr_map[irq] = lr;
- set_bit(lr, vgic_cpu->lr_used);
vlr.irq = irq;
vlr.source = sgi_source_id;
}
}
+ static int process_queued_irq(struct kvm_vcpu *vcpu,
+ int lr, struct vgic_lr vlr)
+ {
+ int pending = 0;
+
+ /*
+ * If the IRQ was EOIed (called from vgic_process_maintenance) or it
+ * went from active to non-active (called from vgic_sync_hwirq) it was
+ * also ACKed and we we therefore assume we can clear the soft pending
+ * state (should it had been set) for this interrupt.
+ *
+ * Note: if the IRQ soft pending state was set after the IRQ was
+ * acked, it actually shouldn't be cleared, but we have no way of
+ * knowing that unless we start trapping ACKs when the soft-pending
+ * state is set.
+ */
+ vgic_dist_irq_clear_soft_pend(vcpu, vlr.irq);
+
+ /*
+ * Tell the gic to start sampling this interrupt again.
+ */
+ vgic_irq_clear_queued(vcpu, vlr.irq);
+
+ /* Any additional pending interrupt? */
+ if (vgic_irq_is_edge(vcpu, vlr.irq)) {
+ BUG_ON(!(vlr.state & LR_HW));
+ pending = vgic_dist_irq_is_pending(vcpu, vlr.irq);
+ } else {
+ if (vgic_dist_irq_get_level(vcpu, vlr.irq)) {
+ vgic_cpu_irq_set(vcpu, vlr.irq);
+ pending = 1;
+ } else {
+ vgic_dist_irq_clear_pending(vcpu, vlr.irq);
+ vgic_cpu_irq_clear(vcpu, vlr.irq);
+ }
+ }
+
+ /*
+ * Despite being EOIed, the LR may not have
+ * been marked as empty.
+ */
+ vlr.state = 0;
+ vlr.hwirq = 0;
+ vgic_set_lr(vcpu, lr, vlr);
+
+ return pending;
+ }
+
static bool vgic_process_maintenance(struct kvm_vcpu *vcpu)
{
u32 status = vgic_get_interrupt_status(vcpu);
struct vgic_dist *dist = &vcpu->kvm->arch.vgic;
- bool level_pending = false;
struct kvm *kvm = vcpu->kvm;
+ int level_pending = 0;
kvm_debug("STATUS = %08x\n", status);
for_each_set_bit(lr, eisr_ptr, vgic->nr_lr) {
struct vgic_lr vlr = vgic_get_lr(vcpu, lr);
- WARN_ON(vgic_irq_is_edge(vcpu, vlr.irq));
- spin_lock(&dist->lock);
- vgic_irq_clear_queued(vcpu, vlr.irq);
+ WARN_ON(vgic_irq_is_edge(vcpu, vlr.irq));
WARN_ON(vlr.state & LR_STATE_MASK);
- vlr.state = 0;
- vgic_set_lr(vcpu, lr, vlr);
- /*
- * If the IRQ was EOIed it was also ACKed and we we
- * therefore assume we can clear the soft pending
- * state (should it had been set) for this interrupt.
- *
- * Note: if the IRQ soft pending state was set after
- * the IRQ was acked, it actually shouldn't be
- * cleared, but we have no way of knowing that unless
- * we start trapping ACKs when the soft-pending state
- * is set.
- */
- vgic_dist_irq_clear_soft_pend(vcpu, vlr.irq);
/*
* kvm_notify_acked_irq calls kvm_set_irq()
- * to reset the IRQ level. Need to release the
- * lock for kvm_set_irq to grab it.
+ * to reset the IRQ level, which grabs the dist->lock
+ * so we call this before taking the dist->lock.
*/
- spin_unlock(&dist->lock);
-
kvm_notify_acked_irq(kvm, 0,
vlr.irq - VGIC_NR_PRIVATE_IRQS);
- spin_lock(&dist->lock);
-
- /* Any additional pending interrupt? */
- if (vgic_dist_irq_get_level(vcpu, vlr.irq)) {
- vgic_cpu_irq_set(vcpu, vlr.irq);
- level_pending = true;
- } else {
- vgic_dist_irq_clear_pending(vcpu, vlr.irq);
- vgic_cpu_irq_clear(vcpu, vlr.irq);
- }
+ spin_lock(&dist->lock);
+ level_pending |= process_queued_irq(vcpu, lr, vlr);
spin_unlock(&dist->lock);
-
- /*
- * Despite being EOIed, the LR may not have
- * been marked as empty.
- */
- vgic_sync_lr_elrsr(vcpu, lr, vlr);
}
}
/*
* Save the physical active state, and reset it to inactive.
*
- * Return 1 if HW interrupt went from active to inactive, and 0 otherwise.
+ * Return true if there's a pending forwarded interrupt to queue.
*/
- static int vgic_sync_hwirq(struct kvm_vcpu *vcpu, struct vgic_lr vlr)
+ static bool vgic_sync_hwirq(struct kvm_vcpu *vcpu, int lr, struct vgic_lr vlr)
{
+ struct vgic_dist *dist = &vcpu->kvm->arch.vgic;
struct irq_phys_map *map;
+ bool phys_active;
+ bool level_pending;
int ret;
if (!(vlr.state & LR_HW))
- return 0;
+ return false;
map = vgic_irq_map_search(vcpu, vlr.irq);
BUG_ON(!map);
ret = irq_get_irqchip_state(map->irq,
IRQCHIP_STATE_ACTIVE,
- &map->active);
+ &phys_active);
WARN_ON(ret);
- if (map->active)
+ if (phys_active)
return 0;
- return 1;
+ spin_lock(&dist->lock);
+ level_pending = process_queued_irq(vcpu, lr, vlr);
+ spin_unlock(&dist->lock);
+ return level_pending;
}
/* Sync back the VGIC state after a guest run */
static void __kvm_vgic_sync_hwstate(struct kvm_vcpu *vcpu)
{
- struct vgic_cpu *vgic_cpu = &vcpu->arch.vgic_cpu;
struct vgic_dist *dist = &vcpu->kvm->arch.vgic;
u64 elrsr;
unsigned long *elrsr_ptr;
bool level_pending;
level_pending = vgic_process_maintenance(vcpu);
- elrsr = vgic_get_elrsr(vcpu);
- elrsr_ptr = u64_to_bitmask(&elrsr);
/* Deal with HW interrupts, and clear mappings for empty LRs */
for (lr = 0; lr < vgic->nr_lr; lr++) {
- struct vgic_lr vlr;
-
- if (!test_bit(lr, vgic_cpu->lr_used))
- continue;
-
- vlr = vgic_get_lr(vcpu, lr);
- if (vgic_sync_hwirq(vcpu, vlr)) {
- /*
- * So this is a HW interrupt that the guest
- * EOI-ed. Clean the LR state and allow the
- * interrupt to be sampled again.
- */
- vlr.state = 0;
- vlr.hwirq = 0;
- vgic_set_lr(vcpu, lr, vlr);
- vgic_irq_clear_queued(vcpu, vlr.irq);
- set_bit(lr, elrsr_ptr);
- }
-
- if (!test_bit(lr, elrsr_ptr))
- continue;
-
- clear_bit(lr, vgic_cpu->lr_used);
+ struct vgic_lr vlr = vgic_get_lr(vcpu, lr);
+ level_pending |= vgic_sync_hwirq(vcpu, lr, vlr);
BUG_ON(vlr.irq >= dist->nr_irqs);
- vgic_cpu->vgic_irq_lr_map[vlr.irq] = LR_EMPTY;
}
/* Check if we still have something up our sleeve... */
+ elrsr = vgic_get_elrsr(vcpu);
+ elrsr_ptr = u64_to_bitmask(&elrsr);
pending = find_first_zero_bit(elrsr_ptr, vgic->nr_lr);
if (level_pending || pending < vgic->nr_lr)
set_bit(vcpu->vcpu_id, dist->irq_pending_on_cpu);
int enabled;
bool ret = true, can_inject = true;
+ trace_vgic_update_irq_pending(cpuid, irq_num, level);
+
if (irq_num >= min(kvm->arch.vgic.nr_irqs, 1020))
return -EINVAL;
kfree(entry);
}
- /**
- * kvm_vgic_get_phys_irq_active - Return the active state of a mapped IRQ
- *
- * Return the logical active state of a mapped interrupt. This doesn't
- * necessarily reflects the current HW state.
- */
- bool kvm_vgic_get_phys_irq_active(struct irq_phys_map *map)
- {
- BUG_ON(!map);
- return map->active;
- }
-
- /**
- * kvm_vgic_set_phys_irq_active - Set the active state of a mapped IRQ
- *
- * Set the logical active state of a mapped interrupt. This doesn't
- * immediately affects the HW state.
- */
- void kvm_vgic_set_phys_irq_active(struct irq_phys_map *map, bool active)
- {
- BUG_ON(!map);
- map->active = active;
- }
-
/**
* kvm_vgic_unmap_phys_irq - Remove a virtual to physical IRQ mapping
* @vcpu: The VCPU pointer
kfree(vgic_cpu->pending_shared);
kfree(vgic_cpu->active_shared);
kfree(vgic_cpu->pend_act_shared);
- kfree(vgic_cpu->vgic_irq_lr_map);
vgic_destroy_irq_phys_map(vcpu->kvm, &vgic_cpu->irq_phys_map_list);
vgic_cpu->pending_shared = NULL;
vgic_cpu->active_shared = NULL;
vgic_cpu->pend_act_shared = NULL;
- vgic_cpu->vgic_irq_lr_map = NULL;
}
static int vgic_vcpu_init_maps(struct kvm_vcpu *vcpu, int nr_irqs)
vgic_cpu->pending_shared = kzalloc(sz, GFP_KERNEL);
vgic_cpu->active_shared = kzalloc(sz, GFP_KERNEL);
vgic_cpu->pend_act_shared = kzalloc(sz, GFP_KERNEL);
- vgic_cpu->vgic_irq_lr_map = kmalloc(nr_irqs, GFP_KERNEL);
if (!vgic_cpu->pending_shared
|| !vgic_cpu->active_shared
- || !vgic_cpu->pend_act_shared
- || !vgic_cpu->vgic_irq_lr_map) {
+ || !vgic_cpu->pend_act_shared) {
kvm_vgic_vcpu_destroy(vcpu);
return -ENOMEM;
}
- memset(vgic_cpu->vgic_irq_lr_map, LR_EMPTY, nr_irqs);
-
/*
* Store the number of LRs per vcpu, so we don't have to go
* all the way to the distributor structure to find out. Only
break;
}
- for (i = 0; i < dist->nr_irqs; i++) {
- if (i < VGIC_NR_PPIS)
+ /*
+ * Enable and configure all SGIs to be edge-triggere and
+ * configure all PPIs as level-triggered.
+ */
+ for (i = 0; i < VGIC_NR_PRIVATE_IRQS; i++) {
+ if (i < VGIC_NR_SGIS) {
+ /* SGIs */
vgic_bitmap_set_irq_val(&dist->irq_enabled,
vcpu->vcpu_id, i, 1);
- if (i < VGIC_NR_PRIVATE_IRQS)
vgic_bitmap_set_irq_val(&dist->irq_cfg,
vcpu->vcpu_id, i,
VGIC_CFG_EDGE);
+ } else if (i < VGIC_NR_PRIVATE_IRQS) {
+ /* PPIs */
+ vgic_bitmap_set_irq_val(&dist->irq_cfg,
+ vcpu->vcpu_id, i,
+ VGIC_CFG_LEVEL);
+ }
}
vgic_enable(vcpu);
case KVM_DEV_TYPE_ARM_VGIC_V2:
vgic_v2_init_emulation(kvm);
break;
-#ifdef CONFIG_ARM_GIC_V3
+#ifdef CONFIG_KVM_ARM_VGIC_V3
case KVM_DEV_TYPE_ARM_VGIC_V3:
vgic_v3_init_emulation(kvm);
break;
block_size = KVM_VGIC_V2_CPU_SIZE;
alignment = SZ_4K;
break;
-#ifdef CONFIG_ARM_GIC_V3
+#ifdef CONFIG_KVM_ARM_VGIC_V3
case KVM_VGIC_V3_ADDR_TYPE_DIST:
type_needed = KVM_DEV_TYPE_ARM_VGIC_V3;
addr_ptr = &vgic->vgic_dist_base;
projects / karo-tx-linux.git / commitdiff