Tianjia, On 2020-04-13 04:45, Tianjia Zhang wrote:
kvm_arch_vcpu_ioctl_run() is only called in the file kvm_main.c, where vcpu->run is the kvm_run parameter, so it has been replaced. Signed-off-by: Tianjia Zhang <tianjia.zhang@xxxxxxxxxxxxxxxxx> --- arch/x86/kvm/x86.c | 8 ++++---- virt/kvm/arm/arm.c | 2 +- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 3bf2ecafd027..70e3f4abbd4d 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -8726,18 +8726,18 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) r = -EAGAIN; if (signal_pending(current)) { r = -EINTR; - vcpu->run->exit_reason = KVM_EXIT_INTR; + kvm_run->exit_reason = KVM_EXIT_INTR; ++vcpu->stat.signal_exits; } goto out; } - if (vcpu->run->kvm_valid_regs & ~KVM_SYNC_X86_VALID_FIELDS) { + if (kvm_run->kvm_valid_regs & ~KVM_SYNC_X86_VALID_FIELDS) { r = -EINVAL; goto out; } - if (vcpu->run->kvm_dirty_regs) { + if (kvm_run->kvm_dirty_regs) { r = sync_regs(vcpu); if (r != 0) goto out; @@ -8767,7 +8767,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) out: kvm_put_guest_fpu(vcpu); - if (vcpu->run->kvm_valid_regs) + if (kvm_run->kvm_valid_regs) store_regs(vcpu); post_kvm_run_save(vcpu); kvm_sigset_deactivate(vcpu); diff --git a/virt/kvm/arm/arm.c b/virt/kvm/arm/arm.c index 48d0ec44ad77..ab9d7966a4c8 100644 --- a/virt/kvm/arm/arm.c +++ b/virt/kvm/arm/arm.c @@ -659,7 +659,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run) return ret; if (run->exit_reason == KVM_EXIT_MMIO) { - ret = kvm_handle_mmio_return(vcpu, vcpu->run); + ret = kvm_handle_mmio_return(vcpu, run); if (ret) return ret; }
Do you have any number supporting the idea that you are optimizing anything here? Performance, code size, register pressure or any other relevant metric?
Thanks, M. -- Jazz is not dead. It just smells funny...