linux/arch/arm64
Suzuki K Poulose a4023f6827 arm64: Add hypervisor safe helper for checking constant capabilities
The hypervisor may not have full access to the kernel data structures
and hence cannot safely use cpus_have_cap() helper for checking the
system capability. Add a safe helper for hypervisors to check a constant
system capability, which *doesn't* fall back to checking the bitmap
maintained by the kernel. With this, make the cpus_have_cap() only
check the bitmask and force constant cap checks to use the new API
for quicker checks.

Cc: Robert Ritcher <rritcher@cavium.com>
Cc: Tirumalesh Chalamarla <tchalamarla@cavium.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Reviewed-by: Will Deacon <will.deacon@arm.com>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-11-16 17:50:51 +00:00
..
boot Correct regulator handling on Rockchip arm64 boards to make 2016-10-29 11:09:37 -07:00
configs ZTE arm64 defconfig updates for 4.9: 2016-09-19 22:35:21 +02:00
crypto crypto: arm64/aes-ctr - fix NULL dereference in tail processing 2016-09-13 18:44:59 +08:00
include arm64: Add hypervisor safe helper for checking constant capabilities 2016-11-16 17:50:51 +00:00
kernel arm64: Add hypervisor safe helper for checking constant capabilities 2016-11-16 17:50:51 +00:00
kvm KVM updates for v4.9-rc1 2016-10-06 10:49:01 -07:00
lib Merge branch 'work.uaccess' into for-linus 2016-10-14 20:42:44 -04:00
mm arm64: move sp_el0 and tpidr_el1 into cpu_suspend_ctx 2016-11-11 18:25:44 +00:00
net arm64: bpf: optimize LD_ABS, LD_IND 2016-06-10 23:11:50 -07:00
xen arm/xen: add support for vm_assist hypercall 2016-07-06 10:42:14 +01:00
Kconfig arm64: split thread_info from task stack 2016-11-11 18:25:46 +00:00
Kconfig.debug arm64: dump: Add checking for writable and exectuable pages 2016-11-07 18:15:04 +00:00
Kconfig.platforms arm64: uniphier: select ARCH_HAS_RESET_CONTROLLER 2016-10-22 18:25:52 +09:00
Makefile arm64: kernel: force ET_DYN ELF type for CONFIG_RELOCATABLE=y 2016-10-20 11:37:25 +01:00