[PATCH 0/6] KVM: x86: Clean up "force immediate exit" code

From: Sean Christopherson
Date: Tue Jan 09 2024 - 20:27:31 EST


Plumb "force_immediate_exit" into the kvm_entry() tracepoint, as
suggested by Maxim, and then follow that up with cleanups that are made
possible by having force_immediate_exit made available to .vcpu_run(),
e.g. VMX can use the on-stack param instead of what is effectively a
temporary field in vcpu_vmx.

Sean Christopherson (6):
KVM: x86: Plumb "force_immediate_exit" into kvm_entry() tracepoint
KVM: VMX: Re-enter guest in fastpath for "spurious" preemption timer
exits
KVM: VMX: Handle forced exit due to preemption timer in fastpath
KVM: x86: Move handling of is_guest_mode() into fastpath exit handlers
KVM: VMX: Handle KVM-induced preemption timer exits in fastpath for L2
KVM: x86: Fully defer to vendor code to decide how to force immediate
exit

arch/x86/include/asm/kvm-x86-ops.h | 1 -
arch/x86/include/asm/kvm_host.h | 6 +--
arch/x86/kvm/svm/svm.c | 18 ++++---
arch/x86/kvm/trace.h | 9 ++--
arch/x86/kvm/vmx/vmx.c | 80 +++++++++++++++++++-----------
arch/x86/kvm/vmx/vmx.h | 2 -
arch/x86/kvm/x86.c | 12 +----
7 files changed, 72 insertions(+), 56 deletions(-)


base-commit: 1c6d984f523f67ecfad1083bb04c55d91977bb15
--
2.43.0.472.g3155946c3a-goog