linux_dsm_epyc7002/arch/x86
Liran Alon f497b6c25d KVM: nVMX: Optimization: Dont set KVM_REQ_EVENT when VMExit with nested_run_pending
When vCPU runs L2 and there is a pending event that requires to exit
from L2 to L1 and nested_run_pending=1, vcpu_enter_guest() will request
an immediate-exit from L2 (See req_immediate_exit).

Since now handling of req_immediate_exit also makes sure to set
KVM_REQ_EVENT, there is no need to also set it on vmx_vcpu_run() when
nested_run_pending=1.

This optimizes cases where VMRESUME was executed by L1 to enter L2 and
there is no pending events that require exit from L2 to L1. Previously,
this would have set KVM_REQ_EVENT unnecessarly.

Signed-off-by: Liran Alon <liran.alon@oracle.com>
Reviewed-by: Nikita Leshenko <nikita.leshchenko@oracle.com>
Reviewed-by: Krish Sadhukhan <krish.sadhukhan@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2018-03-28 22:47:06 +02:00
..
boot
configs
crypto
entry
events
hyperv x86/hyper-v: allocate and use Virtual Processor Assist Pages 2018-03-28 22:47:06 +02:00
ia32
include KVM: x86: Rename interrupt.pending to interrupt.injected 2018-03-28 22:47:06 +02:00
kernel x86/hyper-v: detect nested features 2018-03-28 22:47:06 +02:00
kvm KVM: nVMX: Optimization: Dont set KVM_REQ_EVENT when VMExit with nested_run_pending 2018-03-28 22:47:06 +02:00
lib
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Makefile.um