linux.git/arch/arm/include/uapi/asm, branch v4.11

KVM: arm/arm64: vgic: Implement KVM_DEV_ARM_VGIC_GRP_LEVEL_INFO ioctl

2017-01-30T13:47:29+00:00

Userspace requires to store and restore of line_level for
level triggered interrupts using ioctl KVM_DEV_ARM_VGIC_GRP_LEVEL_INFO.

Reviewed-by: Eric Auger 
Signed-off-by: Vijaya Kumar K 
Signed-off-by: Marc Zyngier

KVM: arm/arm64: vgic: Implement VGICv3 CPU interface access

2017-01-30T13:47:25+00:00

VGICv3 CPU interface registers are accessed using
KVM_DEV_ARM_VGIC_CPU_SYSREGS ioctl. These registers are accessed
as 64-bit. The cpu MPIDR value is passed along with register id.
It is used to identify the cpu for registers access.

The VM that supports SEIs expect it on destination machine to handle
guest aborts and hence checked for ICC_CTLR_EL1.SEIS compatibility.
Similarly, VM that supports Affinity Level 3 that is required for AArch64
mode, is required to be supported on destination machine. Hence checked
for ICC_CTLR_EL1.A3V compatibility.

The arch/arm64/kvm/vgic-sys-reg-v3.c handles read and write of VGIC
CPU registers for AArch64.

For AArch32 mode, arch/arm/kvm/vgic-v3-coproc.c file is created but
APIs are not implemented.

Updated arch/arm/include/uapi/asm/kvm.h with new definitions
required to compile for AArch32.

The version of VGIC v3 specification is defined here
Documentation/virtual/kvm/devices/arm-vgic-v3.txt

Acked-by: Christoffer Dall 
Reviewed-by: Eric Auger 
Signed-off-by: Pavel Fedin 
Signed-off-by: Vijaya Kumar K 
Signed-off-by: Marc Zyngier

KVM: arm/arm64: vgic: Add distributor and redistributor access

2017-01-30T13:47:07+00:00

VGICv3 Distributor and Redistributor registers are accessed using
KVM_DEV_ARM_VGIC_GRP_DIST_REGS and KVM_DEV_ARM_VGIC_GRP_REDIST_REGS
with KVM_SET_DEVICE_ATTR and KVM_GET_DEVICE_ATTR ioctls.
These registers are accessed as 32-bit and cpu mpidr
value passed along with register offset is used to identify the
cpu for redistributor registers access.

The version of VGIC v3 specification is defined here
Documentation/virtual/kvm/devices/arm-vgic-v3.txt

Also update arch/arm/include/uapi/asm/kvm.h to compile for
AArch32 mode.

Signed-off-by: Vijaya Kumar K 
Reviewed-by: Christoffer Dall 
Reviewed-by: Eric Auger 
Signed-off-by: Marc Zyngier

ARM: put types.h in uapi

2017-01-13T17:02:38+00:00

Due to the way kbuild works, this header was unintentionally exported
back in 2013 when it was created, despite it not being in a uapi/
directory.  This is very non-intuitive behaviour by Kbuild.

However, we've had this include exported to userland for almost four
years, and searching google for "ARM types.h __UINTPTR_TYPE__" gives
no hint that anyone has complained about it.  So, let's make it
officially exported in this state.

Signed-off-by: Nicolas Dichtel 
Signed-off-by: Russell King

Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm

2016-12-16T00:06:15+00:00

Pull ARM updates from Russell King:

 - an update for clkdev registration error detection to simplify users

 - add cpu capacity parsing from DT

 - support for larger cachelines found on UniPhier caches

 - documentation for udelay constants

 - properly tag assembly function declarations

 - remove unnecessary indirection of asm/mach-types.h

 - switch to syscall table based generation to simplify future additions
   of system calls, along with correpsonding commit for pkey syscalls

 - remove redundant sa1101 header file

 - RONX protect modules when they're in the vmalloc region

* 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
  ARM: mm: allow set_memory_*() to be used on the vmalloc region
  ARM: mm: fix set_memory_*() bounds checks
  ARM: 8631/1: clkdev: Detect errors in clk_hw_register_clkdev() for mass registration
  ARM: 8629/1: vfp: properly tag assembly function declarations in C code
  ARM: 8622/3: add sysfs cpu_capacity attribute
  ARM: 8621/3: parse cpu capacity-dmips-mhz from DT
  ARM: 8623/1: mm: add ARM_L1_CACHE_SHIFT_7 for UniPhier outer cache
  ARM: Update mach-types
  ARM: sa1100: remove SA-1101 header file
  ARM: 8619/1: udelay: document the various constants
  ARM: wire up new pkey syscalls
  ARM: convert to generated system call tables
  ARM: remove indirection of asm/mach-types.h

ARM: KVM: Support vGICv3 ITS

2016-11-14T10:32:54+00:00

This patch allows to build and use vGICv3 ITS in 32-bit mode.

Signed-off-by: Vladimir Murzin 
Reviewed-by: Andre Przywara 
Reviewed-by: Marc Zyngier 
Signed-off-by: Marc Zyngier

ARM: wire up new pkey syscalls

2016-10-19T09:18:47+00:00

Wire up the new pkey syscalls for ARM.

Signed-off-by: Russell King

ARM: convert to generated system call tables

2016-10-18T20:34:06+00:00

Convert ARM to use a similar mechanism to x86 to generate the unistd.h
system call numbers and the various kernel system call tables.  This
means that rather than having to edit three places (asm/unistd.h for
the total number of system calls, uapi/asm/unistd.h for the system call
numbers, and arch/arm/kernel/calls.S for the call table) we have only
one place to edit, making the process much more simple.

The scripts have knowledge of the table padding requirements, so there's
no need to worry about __NR_syscalls not fitting within the immediate
constant field of ALU instructions anymore.

Signed-off-by: Russell King

ARM: KVM: Support vgic-v3

2016-09-22T11:22:21+00:00

This patch allows to build and use vgic-v3 in 32-bit mode.

Unfortunately, it can not be split in several steps without extra
stubs to keep patches independent and bisectable.  For instance,
virt/kvm/arm/vgic/vgic-v3.c uses function from vgic-v3-sr.c, handling
access to GICv3 cpu interface from the guest requires vgic_v3.vgic_sre
to be already defined.

It is how support has been done:

* handle SGI requests from the guest

* report configured SRE on access to GICv3 cpu interface from the guest

* required vgic-v3 macros are provided via uapi.h

* static keys are used to select GIC backend

* to make vgic-v3 build KVM_ARM_VGIC_V3 guard is removed along with
  the static inlines

Acked-by: Marc Zyngier 
Reviewed-by: Christoffer Dall 
Signed-off-by: Vladimir Murzin 
Signed-off-by: Christoffer Dall

kvm arm/arm64: Remove trailing whitespace from headers

2016-07-12T18:20:36+00:00

Noticed while making a copy of these files to tools/ where those kernel
files were being directly accessed, which we're not allowing anymore to
avoid that changes in the kernel side break tooling.

Cc: Christoffer Dall 
Cc: Eric Auger 
Cc: Marc Zyngier 
Cc: Adrian Hunter 
Cc: David Ahern 
Cc: Jiri Olsa 
Cc: Namhyung Kim 
Cc: Wang Nan 
Link: http://lkml.kernel.org/n/tip-82thftcdhj2j5wt6ir4vuyhk@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo