From: Sean Christopherson <seanjc@google.com>
To: Alessandro Ratti <alessandro@0x65c.net>
Cc: pbonzini@redhat.com, kvm@vger.kernel.org,
linux-kernel@vger.kernel.org,
syzbot+1522459a74d26b0ac33a@syzkaller.appspotmail.com
Subject: Re: [PATCH] KVM: x86: Retry guest entry on -EBUSY from kvm_check_nested_events()
Date: Tue, 6 Jan 2026 09:34:44 -0800 [thread overview]
Message-ID: <aV1HtKXlePEJ7CJd@google.com> (raw)
In-Reply-To: <aV1EF5DU5e66NTK0@google.com>
On Tue, Jan 06, 2026, Sean Christopherson wrote:
> On Sun, Jan 04, 2026, Alessandro Ratti wrote:
> I'll post the below as part of a series, as there is at least one cleanup that
> can be done on top to consolidate handling of EBUSY,
Gah, I was wrong. I was thinking that morphing EBUSY to '0' could be moved into
a common helper, but kvm_apic_accept_events() needs to bail immediately on EBUSY,
i.e. needs to see EBUSY, not '0'.
I'll post this as a standalone patch and then try to add WARNs in a separate
series.
> and I'm hopeful that the spirit of the WARN can be preserved, e.g. by
> adding/extending WARNs in paths where KVM (re)injects events.
next prev parent reply other threads:[~2026-01-06 17:34 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-04 9:32 [PATCH] KVM: x86: Retry guest entry on -EBUSY from kvm_check_nested_events() Alessandro Ratti
2026-01-06 17:19 ` Sean Christopherson
2026-01-06 17:34 ` Sean Christopherson [this message]
2026-01-07 15:12 ` Alessandro Ratti
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