From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f73.google.com (mail-pj1-f73.google.com [209.85.216.73]) (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 BFC0619F131 for ; Wed, 11 Dec 2024 16:42:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.73 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733935376; cv=none; b=djGfCL/09k1+srS5fi3yRcjt39NaWQ1R3L/l3z8/AwYHjzcKOpSAKDwZAT6SA8GTpJBwKClCQbMofbm3tEwMkUJ/DPN0T2yr2GI20r0zE10FHovV+iVNj5L4K5tLCjHKUlR+OMJUklHTdMubZqS86wnT+dPjkE7tqJJPAm8jHd8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733935376; c=relaxed/simple; bh=+IJL5ABy4FXfBSjS+ZC2D7SmHKapNA3892pbPXLw9c0=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Content-Type; b=p7AaMdP1e1sAz95Dat5pD/ItOLisQ1jkQHr79AvwVcNdT++mKwgYNtOgr8NwZ1A2RpRIwzZMBrdYrXPxWq6/zZq1Y3DiJK3BeFue1Aey8THF1vDYdcJMcGGQRVRMzgqzK+KEBTxdOcTJW5mEPnqEomuDaP2HqYIK1zTIVfH9FP8= 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=Dpt8QJ0r; arc=none smtp.client-ip=209.85.216.73 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="Dpt8QJ0r" Received: by mail-pj1-f73.google.com with SMTP id 98e67ed59e1d1-2ef9204f898so3594067a91.2 for ; Wed, 11 Dec 2024 08:42:54 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1733935374; x=1734540174; darn=vger.kernel.org; h=to:from:subject:message-id:references:mime-version:in-reply-to:date :from:to:cc:subject:date:message-id:reply-to; bh=+IJL5ABy4FXfBSjS+ZC2D7SmHKapNA3892pbPXLw9c0=; b=Dpt8QJ0rZtSNfNfpZYIp5f52XkHfKGQHnB4GHiZw3M+dMvWDJn8zMVo7TpXmgp4L8g vrDk7v5djdXUZppg3QGBlxYmTdKiFpO++UbYv19WWShdDweE8wlI5xvxEooz4KhI/wYa l1K4c3A4xwatbHJaVLmYNkZNYRNzKQb43JcBurktjxXeA9WFpMrLmHV/ubk5IZgd5Xt4 EdWiCmbV2jdGSwHVNObb7AdzLEd1PDrBSdzmwRw+t19c5YF8vAocFscJUJFjCfw3X1yZ NZvDauubjp9FFZTXd8mckiZ+32//axDu+lbcipfS6dRW6tR1iBJLywxAa02He58EBanr C/EQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1733935374; x=1734540174; 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=+IJL5ABy4FXfBSjS+ZC2D7SmHKapNA3892pbPXLw9c0=; b=w0/5Xv+DYtj6r1v5ED39zVTh5Im/W7A6bEGW/BI+VWdPvA7Z6M9XVHqli15kKPF/xu HCTEvCGWHw80OrVHWyzGND75ZkJMlU8QLLV9w1tNTPWjNShqZ/L8yFSlC+PJoa4jOfVs SoJxEfNEAnun77gXc9bEWuGyZKB7qnTLvnjSxbd9wKkKMQp+YHxpXH6S3Ho29FncAwC0 AWchBZqwlYKxD3XQzVclaBu95vBgKkzUdwjezOqEF7TKyMjpLpGKFTa67YJY+ofdiLPi W+SLh8lwW53r09zHuuU00RrUxW00P0X7pmozo99jjCMFQJC7YKQZ3zug6BhwsuPJMpuy o5Cg== X-Forwarded-Encrypted: i=1; AJvYcCU3/2XUwhadTQoq1vgZNkYa2L6CqUjt88C5N8QSAIWeBkuweXIJwSKeSr9k7PudQWADocw=@vger.kernel.org X-Gm-Message-State: AOJu0YyI+lcOHI2Opd6SmozdFlsP1b/sbUCJXhxkwHs0iSyZtmMvH8rW 2oE+h4bWW90mDfJ06PHxMh2HvtYJi9+s+ONKdnBFzTjuseoT+6cIZnxcD94LdEMjtvRn7L53Qg8 Kng== X-Google-Smtp-Source: AGHT+IFcLyF450FdGbFytuLxC3VtC4irjOelUzQ+tfSBiTLeGly2Al7QKHOvKwAGWqA/hARZu+PeJih5gHs= X-Received: from pjbqi13.prod.google.com ([2002:a17:90b:274d:b0:2ef:701e:21c1]) (user=seanjc job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:4c48:b0:2ee:d024:e4e2 with SMTP id 98e67ed59e1d1-2f127f565bbmr5844007a91.7.1733935374078; Wed, 11 Dec 2024 08:42:54 -0800 (PST) Date: Wed, 11 Dec 2024 08:42:52 -0800 In-Reply-To: <20241211013302.1347853-1-seanjc@google.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20241211013302.1347853-1-seanjc@google.com> Message-ID: Subject: Re: [PATCH 0/5] KVM: x86: Address xstate_required_size() perf regression From: Sean Christopherson To: Paolo Bonzini , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Jim Mattson Content-Type: text/plain; charset="us-ascii" On Tue, Dec 10, 2024, Sean Christopherson wrote: > CPUID is a mandatory intercept on both Intel and AMD Jim pointed out that CPUID is NOT a mandatory intercept on AMD, and so while the code is correct, the changelogs are not.