From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-yb1-f201.google.com (mail-yb1-f201.google.com [209.85.219.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4DFA41DFCF for ; Thu, 29 Feb 2024 23:12:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.219.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709248373; cv=none; b=spp9MD4ofe2mQ7mPKc//vwrmC1R2oelnhJs3eZqasMRb/RF/F0ccCM9wBIE/O1IqaTWUUlE0smq63TdhHwbnF9fG0nY6ur4Z+OQrXlQJ6YfHsJt1cp7oytJp0lU2SQj6iEgyKBUEkdCtcDO2TsFA3atTDFLZsWSSM5eACqzyLBU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709248373; c=relaxed/simple; bh=zdxPd8dyQ1ZY0YzppH0DB9bu/rDZym4gvhH+TFmDv7M=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=O6wiU2SBFmOA6JP4bglkV5VXmGhQQYjw/G3xrwDjeLkErKFpU2nPKmvW1YeLj1uO6Ezx8mquTVGQRNK2nfWWbyYW+Mzmr7Em1oSga2mzAFgdeNcSAqsqt7fbutXSFdYsZhhgi7SM/Fqz0rRTvRUDeazwPFMRPLQCEtUaRhC1N2s= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--seanjc.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=ThlMwWWL; arc=none smtp.client-ip=209.85.219.201 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--seanjc.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="ThlMwWWL" Received: by mail-yb1-f201.google.com with SMTP id 3f1490d57ef6-dcc0bcf9256so2222230276.3 for ; Thu, 29 Feb 2024 15:12:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1709248371; x=1709853171; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=PLOzB45jjWM/AB8EVwjpG+k2OUVhgoW2eKlxq/9jk60=; b=ThlMwWWLoy4iR/59Y5CprZyxl/bEfXRcU+rpIJGYtQwMcfhjeT9zGJ1/f99RInaOqW TCq6Xciv2+QXdEw3iCsRwylxm/UlTDkYqpfaKyc52eE9IcRUbdaQbNEZBvVwkcjFPoWw tMrb8tWxeRPll4c+pPhyoLHnngHMtMTmVheqYAC2SuZ0ZURswYeR8zj6g+s9JxhFlCoH ZYKvOMmWqFWFJ+PRHdk3mwrHX7U4S9/qEgA1TEeMpm8AgCrC4U/KjEmMpi1rTWJHbv1a UpN8eRZUP5OMyF3uWHrwG7bh/s5TcqGy0p2oiS/qoscC4e0bmaE/NC+KGfQq2Gc2mQAq IQDQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1709248371; x=1709853171; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=PLOzB45jjWM/AB8EVwjpG+k2OUVhgoW2eKlxq/9jk60=; b=eNCIjEdMh7bTGCZANoZLc60341hOmC/C/mVN0cPm9M3PbGc5StgZ5FrOk3EPoV37VJ SgFvUWKvcQVLU28vpLmJ8g8IU8IMH3sWqi3uXb8GlWTqOxUtWHkbys/iVWjYXEFcfxVz 9GTz5T1nQNOCSDh77W7bdnnamaxQ15xSVztqlumbzXK/A81NQuucXC1shSNQHxtG+3u/ TwtnaXieJA9dPJ6Ifu97O4IaAh0Dm1vY0GJu02uF/uNc06t3tLWw77CwMc+8j5+jFSUe zllmBkbZ54dWqnU9lduFVvmZiv6xfZeK61KessMpWpjsA7SLw8joK2JVO8RnzfdVh/qW VjVA== X-Gm-Message-State: AOJu0YzNMTlOnEfMAIz6TAET+Xl2+oL+rL6PjPAT2lKNdTBLgb+Sv9fw JOShajEmWjW3HE4NLGCG5VnQAv104ohCN07wKUa1zL0uWOwDMFaaUVa7ww8nHha+iXUCeq+25jA TfA== X-Google-Smtp-Source: AGHT+IEhgP6y8T6cjljxlZS1XKjSKVttHQMFr+J0SH8K8Y1alhnLGKm9EwccOsB8I38uwFrCz8Fcqm94iY0= X-Received: from zagreus.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:5c37]) (user=seanjc job=sendgmr) by 2002:a25:b220:0:b0:dc7:6f13:61d9 with SMTP id i32-20020a25b220000000b00dc76f1361d9mr168088ybj.4.1709248371264; Thu, 29 Feb 2024 15:12:51 -0800 (PST) Date: Thu, 29 Feb 2024 15:12:49 -0800 In-Reply-To: <20240227115648.3104-1-dwmw2@infradead.org> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240227115648.3104-1-dwmw2@infradead.org> Message-ID: Subject: Re: [PATCH v2 0/8] KVM: x86/xen updates From: Sean Christopherson To: David Woodhouse Cc: kvm@vger.kernel.org, Paul Durrant , Paolo Bonzini , Michal Luczaj Content-Type: text/plain; charset="us-ascii" On Tue, Feb 27, 2024, David Woodhouse wrote: > David Woodhouse (6): > KVM: x86/xen: improve accuracy of Xen timers > KVM: x86/xen: inject vCPU upcall vector when local APIC is enabled > KVM: x86/xen: remove WARN_ON_ONCE() with false positives in evtchn delivery > KVM: pfncache: simplify locking and make more self-contained > KVM: x86/xen: fix recursive deadlock in timer injection > KVM: pfncache: clean up rwlock abuse > > Paul Durrant (2): > KVM: x86/xen: split up kvm_xen_set_evtchn_fast() > KVM: x86/xen: avoid blocking in hardirq context in kvm_xen_set_evtchn_fast() > > arch/x86/kvm/lapic.c | 5 +- > arch/x86/kvm/x86.c | 61 +++++++++- > arch/x86/kvm/x86.h | 1 + > arch/x86/kvm/xen.c | 327 +++++++++++++++++++++++++++++++++------------------ > arch/x86/kvm/xen.h | 18 +++ > virt/kvm/pfncache.c | 216 +++++++++++++++++----------------- > 6 files changed, 403 insertions(+), 225 deletions(-) FYI, I'm planning on grabbing at least the first 3 for 6.9, but I'm off tomorrow and don't want to risk having to fix breakage in -next, so it won't happen until next week. I might also grab 4 and 5, I just need to stare at that locking code a bit.