Subject: Re: [patch V5 05/15] entry: Provide infrastructure for work before transitioning to guest mode

From: Thomas Gleixner <[email-masked]>
Date: Thu, 30 Jul 2020 09:19:01 +0200

Qian Cai <[email-masked]> writes:
> On Wed, Jul 22, 2020 at 11:59:59PM +0200, Thomas Gleixner wrote:
> SR-IOV will start trigger a warning below in this commit,
>
> [  765.434611] WARNING: CPU: 13 PID: 3377 at include/linux/entry-kvm.h:75 kvm_arch_vcpu_ioctl_run+0xb52/0x1320 [kvm]

Yes, I'm a moron. Fixed it locally and failed to transfer the fixup when
merging it. Fix below.

> [  768.221270] softirqs last disabled at (5093): [<ffffffffa1800ec2>] asm_call_on_stack+0x12/0x20
> [  768.267273] ---[ end trace 8730450ad8cfee9f ]---

Can you pretty please trim your replies?

>> ---
>> V5: Rename exit -> xfer (Sean)

<removed 200 lines of useless information>

Thanks,

        tglx
---
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 82d4a9e88908..532597265c50 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -8682,7 +8682,7 @@ static int vcpu_run(struct kvm_vcpu *vcpu)
 			break;
 		}
 
-		if (xfer_to_guest_mode_work_pending()) {
+		if (__xfer_to_guest_mode_work_pending()) {
 			srcu_read_unlock(&kvm->srcu, vcpu->srcu_idx);
 			r = xfer_to_guest_mode_handle_work(vcpu);
 			if (r)