From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f201.google.com (mail-pl1-f201.google.com [209.85.214.201]) (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 5A4283AA4F6 for ; Fri, 29 May 2026 15:10:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780067431; cv=none; b=AW2DpgjXbVKb+83xKBDyXkpiMiTnRhCTz7HGRWc5onVsoF/3swYDExo3DfoFMhQYYweKSOGE9RX6TXiEGDSAWajEbKN+nAM/G5r5KRSslJx5Jyp74nSBiDvsnVBJzj1lojp/RlUEIt86NrlnfcD6cOi+SLZJEc0d98iblLO9xtY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780067431; c=relaxed/simple; bh=V/hxOsVp4piMpArHe7ioxetvdl4y0PTvTNEBx/lxH1A=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Content-Type; b=l/SAlr0vVc3kcRn7TGFNBpJdGzOs1y+PLDC61H2JnkBu4hqJ5aAuXEcqW5vBKLUfSpG6tCozdp+vn/pwq1P4v+vGr/0l75amnnYpePoKyIlEsqr4z0q/1bHr1Bzyfpu66BmV53074JU8Tg+Xj9wcs2NsNLe9X/Z3uvcveqkGCcM= 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=Oyjbw5LV; arc=none smtp.client-ip=209.85.214.201 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="Oyjbw5LV" Received: by mail-pl1-f201.google.com with SMTP id d9443c01a7336-2beff6b6e74so28190885ad.1 for ; Fri, 29 May 2026 08:10:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1780067430; x=1780672230; darn=lists.linux.dev; h=to:from:subject:message-id:references:mime-version:in-reply-to:date :from:to:cc:subject:date:message-id:reply-to; bh=Q3KwUKexhBMnhxMu/5zzl7QcY3Y917Dhb3kMyW4ALaw=; b=Oyjbw5LV1U3ZZ2K3l9nEZWOPEfLCD4+6qvRnHymMiOdwOCiGKduU2KvtXT82LF7qWs gLyQrb1qPotXqFtr5isF1JPWbHl0383LDHCKylGtnv35oox7Ws+VU/GaVB2rxwdbP7Xj pDwLmczCFigRZ4/nVlEfampqkWKnJTYtRjdjNKpyZXzJ6MSHIIpKyWAKWZoAhR7oasPA plTMJWOvJ+KVTBSh236+xF7GLD+f9NW6Sft7Nx4cZ/7VfBXpu3uYV9VVRHcMP9irMVmQ ut16yjAD76iKNRCvvtnn2xlbcHyZLOk5vMY1j3V194DaMJEkz7OkAQG0N7CqD9oEZzwA hgBQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1780067430; x=1780672230; h=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=Q3KwUKexhBMnhxMu/5zzl7QcY3Y917Dhb3kMyW4ALaw=; b=LnYX472K05RQIZ4rX4SAxJCoNmiNPxIqBAIJ5IkjpHiV8pFqQB5Lns+RTI5BCoyNuq xA3KR1Zxp9tTd8GEHWO1Nkt3uJC5+5pB6PVupRm1TtUvPqtQPPJN2YhpauRFFwHW3mL1 fvaCd6uXY+W/DMK1C1O8TwDTfOzdJyrGdWik42ssVKBlUXWNMnRKf5JJjV9n69znPtC0 KDiJSRRm+3G7AUNGHOZCXCPZScWS5wiga7UpRlGiGKx2ngLx5B2USb6FqL0wxeBC3s/j 6x4bd29RHfsYWPH1mlpN965ztUXIdGXbLqT9tvR6o9NNyI2l7yyMYH7m57220quxIvf8 suEw== X-Forwarded-Encrypted: i=1; AFNElJ/W+1YRsP/lu3TRRCoGIW7rx0YrCNZf4AwluFshsdXaSDNJdTzFrgE0GfBc7KpigtwyvayD9WFu/pHb@lists.linux.dev X-Gm-Message-State: AOJu0YxYIrquwAxHmL6DX8ov9IBWPAMlSmpN5Q95PsTqXhQ9jPbvr/cF EMdlNJc8ISb0docyTglIknDSB15B18vjiPdR6sj+vfRgB823EUxKVcJXEmehcwQsOevIWZom0QS YZ+KLDg== X-Received: from plpo14.prod.google.com ([2002:a17:903:3e0e:b0:2bf:19e3:ff16]) (user=seanjc job=prod-delivery.src-stubby-dispatcher) by 2002:a17:903:1b64:b0:2b7:aa20:3c61 with SMTP id d9443c01a7336-2bf36858f5bmr2472455ad.33.1780067429457; Fri, 29 May 2026 08:10:29 -0700 (PDT) Date: Fri, 29 May 2026 08:10:28 -0700 In-Reply-To: <20260529144435.704127-1-seanjc@google.com> Precedence: bulk X-Mailing-List: linux-coco@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260529144435.704127-1-seanjc@google.com> Message-ID: Subject: Re: [PATCH v4 00/47] x86: Try to wrangle PV clocks vs. TSC From: Sean Christopherson To: Paolo Bonzini , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, Kiryl Shutsemau , "K. Y. Srinivasan" , Haiyang Zhang , Wei Liu , Dexuan Cui , Long Li , Ajay Kaher , Alexey Makhalov , Jan Kiszka , Andy Lutomirski , Peter Zijlstra , Juergen Gross , Daniel Lezcano , John Stultz , "H. Peter Anvin" , Rick Edgecombe , Vitaly Kuznetsov , Broadcom internal kernel review list , Boris Ostrovsky , Stephen Boyd , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-coco@lists.linux.dev, linux-hyperv@vger.kernel.org, virtualization@lists.linux.dev, xen-devel@lists.xenproject.org, David Woodhouse , Tom Lendacky , Nikunj A Dadhania , David Woodhouse , Michael Kelley , Thomas Gleixner Content-Type: text/plain; charset="us-ascii" On Fri, May 29, 2026, Sean Christopherson wrote: > Well, the number of patches in the series is going in the wrong direction, > but I'm much happier with this version, which eschews the x86_platform > overrides entirely in favor of a fixed sequence for selecting the TSC/CPU > frequency "routine". FYI, our internal mail server flamed out after sending patch 26 in the initial go. I'm pretty sure I managed to get the rest sent without screwing up the threading. Holler if something is wonky and I'll RESEND the whole pile if necessary.