Longpeng(Mike) 199b5763d3 KVM: add spinlock optimization framework ...

If a vcpu exits due to request a user mode spinlock, then
the spinlock-holder may be preempted in user mode or kernel mode.
(Note that not all architectures trap spin loops in user mode,
only AMD x86 and ARM/ARM64 currently do).

But if a vcpu exits in kernel mode, then the holder must be
preempted in kernel mode, so we should choose a vcpu in kernel mode
as a more likely candidate for the lock holder.

This introduces kvm_arch_vcpu_in_kernel() to decide whether the
vcpu is in kernel-mode when it's preempted.  kvm_vcpu_on_spin's
new argument says the same of the spinning VCPU.

Signed-off-by: Longpeng(Mike) <longpeng2@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

2017-08-08 10:57:43 +02:00

..

00README.txt

…

callback.c

MIPS: KVM: Convert EXPORT_SYMBOL to _GPL

2016-01-24 03:13:24 +01:00

commpage.c

MIPS: kvm: Audit and remove any unnecessary uses of module.h

2016-10-05 01:31:20 +02:00

commpage.h

MIPS: KVM: Rename files to remove the prefix "kvm_" and "kvm_mips_"

2014-06-30 16:52:03 +02:00

dyntrans.c

KVM: MIPS/T&E: Use lockless GVA helpers for dyntrans

2017-02-03 15:21:12 +00:00

emulate.c

KVM: add kvm_{test,clear}_request to replace {test,clear}_bit

2017-04-27 14:12:22 +02:00

entry.c

KVM: MIPS/Entry: Update entry code to support VZ

2017-03-28 14:53:51 +01:00

fpu.S

MIPS: KVM: Fix fpu.S misassembly with r6

2016-07-05 16:09:11 +02:00

hypcall.c

KVM: MIPS: Implement HYPCALL emulation

2017-03-28 14:53:33 +01:00

interrupt.c

KVM: MIPS/T&E: Implement CP0_EBase register

2017-02-03 15:21:30 +00:00

interrupt.h

KVM: MIPS: Implement VZ support

2017-03-28 14:53:54 +01:00

Kconfig

KVM: MIPS: Add VZ support to build system

2017-03-28 14:53:54 +01:00

Makefile

KVM: MIPS: Add VZ support to build system

2017-03-28 14:53:54 +01:00

mips.c

KVM: add spinlock optimization framework

2017-08-08 10:57:43 +02:00

mmu.c

KVM: MIPS: Implement VZ support

2017-03-28 14:53:54 +01:00

msa.S

MIPS: KVM: Add base guest MSA support

2015-03-27 21:25:19 +00:00

stats.c

MIPS: KVM: Clean up kvm_exit trace event

2016-06-14 11:16:23 +02:00

tlb.c

KVM: MIPS: Fix maybe-uninitialized build failure

2017-06-20 17:02:48 +02:00

trace.h

KVM: MIPS/VZ: Trace guest mode changes

2017-03-28 14:54:00 +01:00

trap_emul.c

KVM: add kvm_request_pending

2017-06-04 16:53:00 +02:00

vz.c

KVM: add kvm_request_pending

2017-06-04 16:53:00 +02:00