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33c76a0b81
linux/arch/arm64/kvm
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Mario Smarduch 33c76a0b81 arm64: KVM: Optimize arm64 skip 30-50% vfp/simd save/restore on exits 
This patch only saves and restores FP/SIMD registers on Guest access. To do
this cptr_el2 FP/SIMD trap is set on Guest entry and later checked on exit.
lmbench, hackbench show significant improvements, for 30-50% exits FP/SIMD
context is not saved/restored

[chazy/maz: fixed save/restore logic for 32bit guests]

Signed-off-by: Mario Smarduch <m.smarduch@samsung.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2015-08-19 22:25:19 +01:00
..
debug.c KVM: arm64: add trace points for guest_debug debug 2015-07-21 12:50:43 +01:00
emulate.c arm64: kvm: move to ESR_ELx macros 2015-01-15 12:24:25 +00:00
guest.c arm64/kvm: Add generic v8 KVM target 2015-08-12 11:28:22 +01:00
handle_exit.c KVM: arm64: enable KVM_CAP_SET_GUEST_DEBUG 2015-07-21 12:50:43 +01:00
hyp-init.S arm64: KVM: use ID map with increased VA range if required 2015-03-23 11:35:29 +00:00
hyp.S arm64: KVM: Optimize arm64 skip 30-50% vfp/simd save/restore on exits 2015-08-19 22:25:19 +01:00
inject_fault.c arm64: kvm: move to ESR_ELx macros 2015-01-15 12:24:25 +00:00
Kconfig KVM: arm/arm64: Enable the KVM-VFIO device 2015-06-17 09:46:29 +01:00
Makefile KVM: arm: introduce kvm_arm_init/setup/clear_debug 2015-07-21 12:47:08 +01:00
regmap.c arm64: KVM: 32bit GP register access 2013-06-12 16:42:14 +01:00
reset.c KVM: arm/arm64: timer: Allow the timer to control the active state 2015-08-12 11:28:26 +01:00
sys_regs_generic_v8.c arm64/kvm: Add generic v8 KVM target 2015-08-12 11:28:22 +01:00
sys_regs.c KVM: arm64: add trace points for guest_debug debug 2015-07-21 12:50:43 +01:00
sys_regs.h KVM: arm64: introduce vcpu->arch.debug_ptr 2015-07-21 12:50:25 +01:00
trace.h KVM: arm64: add trace points for guest_debug debug 2015-07-21 12:50:43 +01:00
vgic-v2-switch.S arm/arm64: KVM: vgic: Do not save GICH_HCR / ICH_HCR_EL2 2015-06-17 09:59:55 +01:00
vgic-v3-switch.S arm/arm64: KVM: vgic: Do not save GICH_HCR / ICH_HCR_EL2 2015-06-17 09:59:55 +01:00