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| author | Paolo Bonzini <[email protected]> | 2024-07-16 09:51:36 -0400 |
|---|---|---|
| committer | Paolo Bonzini <[email protected]> | 2024-07-16 09:51:36 -0400 |
| commit | 86014c1e20fa1b5d5c6968f37fdd2f1b6c94d519 (patch) | |
| tree | ef455cd218aa2009e04dd5a73e7d55dfa8ac009e /virt/kvm/async_pf.c | |
| parent | f4501e8bc88db2548b37afe100506358f1bf7504 (diff) | |
| parent | 25bc6af60f6121071ab4aa924a24cf6011125614 (diff) | |
Merge tag 'kvm-x86-generic-6.11' of https://github.com/kvm-x86/linux into HEAD
KVM generic changes for 6.11
- Enable halt poll shrinking by default, as Intel found it to be a clear win.
- Setup empty IRQ routing when creating a VM to avoid having to synchronize
SRCU when creating a split IRQCHIP on x86.
- Rework the sched_in/out() paths to replace kvm_arch_sched_in() with a flag
that arch code can use for hooking both sched_in() and sched_out().
- Take the vCPU @id as an "unsigned long" instead of "u32" to avoid
truncating a bogus value from userspace, e.g. to help userspace detect bugs.
- Mark a vCPU as preempted if and only if it's scheduled out while in the
KVM_RUN loop, e.g. to avoid marking it preempted and thus writing guest
memory when retrieving guest state during live migration blackout.
- A few minor cleanups
Diffstat (limited to 'virt/kvm/async_pf.c')
| -rw-r--r-- | virt/kvm/async_pf.c | 13 |
1 files changed, 1 insertions, 12 deletions
diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c index 99a63bad0306..0ee4816b079a 100644 --- a/virt/kvm/async_pf.c +++ b/virt/kvm/async_pf.c @@ -80,7 +80,6 @@ static void async_pf_execute(struct work_struct *work) spin_lock(&vcpu->async_pf.lock); first = list_empty(&vcpu->async_pf.done); list_add_tail(&apf->link, &vcpu->async_pf.done); - apf->vcpu = NULL; spin_unlock(&vcpu->async_pf.lock); /* @@ -120,8 +119,6 @@ static void kvm_flush_and_free_async_pf_work(struct kvm_async_pf *work) void kvm_clear_async_pf_completion_queue(struct kvm_vcpu *vcpu) { - spin_lock(&vcpu->async_pf.lock); - /* cancel outstanding work queue item */ while (!list_empty(&vcpu->async_pf.queue)) { struct kvm_async_pf *work = @@ -129,23 +126,15 @@ void kvm_clear_async_pf_completion_queue(struct kvm_vcpu *vcpu) typeof(*work), queue); list_del(&work->queue); - /* - * We know it's present in vcpu->async_pf.done, do - * nothing here. - */ - if (!work->vcpu) - continue; - - spin_unlock(&vcpu->async_pf.lock); #ifdef CONFIG_KVM_ASYNC_PF_SYNC flush_work(&work->work); #else if (cancel_work_sync(&work->work)) kmem_cache_free(async_pf_cache, work); #endif - spin_lock(&vcpu->async_pf.lock); } + spin_lock(&vcpu->async_pf.lock); while (!list_empty(&vcpu->async_pf.done)) { struct kvm_async_pf *work = list_first_entry(&vcpu->async_pf.done, |