From nobody Sat Feb 7 22:55:07 2026 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 8FAE62405E1 for ; Wed, 7 Jan 2026 20:45:49 +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=1767818750; cv=none; b=iACp2GAwsilMUP1Aavl8fKjiO65nWv/CfniFgo/+fyGmDJ2YgIKz6ev1oHKyjIkBg85kuY4AlmRhlc/2TmhOMMPZXUT8Mpw2Gwp0yx2PbcnmyH+NoxwwxoQr5svl4gJ4TXSkPp/zChaaXZNM+Xpt8gF8bzNsx08nKA3mN/TDUJ8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767818750; c=relaxed/simple; bh=kLf+Jhn9BfWaW9wP6Rr3K8VfNR2h8kLz770YadG23A0=; h=Date:Mime-Version:Message-ID:Subject:From:To:Cc:Content-Type; b=NwWc8fjwURjFCLLIJse37qzsmKrmv5jpfYg9Ars4ivrKZK1wq80Jj/+6gKByZ8e0e8wrmVrLXmb0ZU/kvG3sXepsnvhxQDhqACxvuK+1EnT+S4zEwxn1jw4Rhg2mvcUTMkRGIf/+av2AdCTv20oSKp2Mm+ZKA/ZGSXZxm/XcKms= 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=Pi96HkM3; 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="Pi96HkM3" Received: by mail-pl1-f201.google.com with SMTP id d9443c01a7336-2a0f47c0e60so54123455ad.3 for ; Wed, 07 Jan 2026 12:45:49 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1767818749; x=1768423549; darn=vger.kernel.org; h=cc:to:from:subject:message-id:mime-version:date:reply-to:from:to:cc :subject:date:message-id:reply-to; bh=n48nbRlaDLWOB1PZTlBX2sKsu5Tn10eECYRBDhE9kPk=; b=Pi96HkM30gG3/ofGhrbgV9XdEd30XVrgzoU4UFVkKoT8Nw2tMolOogcEGJsj0g1qC9 ywt4bc/bDKu5VDQIyPmw3yv3R5UlzN9edsojuLtluELaNmeKgaqrKtEzD/ryLC4Ob5l1 iWwUIffsS+A+4f41D4AYZ4ty6TrB+Nf6SHuYUQcG7gK9ELwh1PwdQVXvt22UjEySV6Dz eviAyjdg9Sjys0BWwWPbFGR4hwKNiTxjV3ncu6VXIV+SAE47GeAP9o1SMvKqgmuLphU1 PjB9ke60gauirjJEprbF727RmbvTZyQ/kvUBaDsr7PFFjfcm5hNaXZPPjIt8UDGYLAe9 xGJQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1767818749; x=1768423549; h=cc:to:from:subject:message-id:mime-version:date:reply-to :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=n48nbRlaDLWOB1PZTlBX2sKsu5Tn10eECYRBDhE9kPk=; b=q2nn0ecm3ayc2drZTBNT4dpQiglRlY3bljIU7LOhYpe+p3IwaaZVzR75pPLVpRaeHF ktmHexwMWmBGGcxN205H3j0YWhFuhHmb32CiNHTCYtZGeTojdyJeUTlP4Tz0WqeLct9s Vhw8pOeJjaf4T8r9Q8bDmYQ9erZdDnDSsbzwnyGz1VING2sUCGuqzfLJcfHOhw3UA9nq uecb7av7FkQ8Scz004DBC2oeSEC8HuQfgooRvxC7M1Miagj6bt7LCo3xh6BsVVUg5t+v u31kBmA71czCE5V3E11Gqr6Qa/1DVAnqazA1KVzUqlDmTNi3OMUq3wte7xAqHgb2KH1P UFmQ== X-Forwarded-Encrypted: i=1; AJvYcCWhFeEDDOIdCAMaTAro67LIXWR2iFxPaJOq3LFv1U1OUzXnpufuV/D6/bF3H4bJWCAiWnhpdsJMW6FgUPU=@vger.kernel.org X-Gm-Message-State: AOJu0YyUUq7zII0/VD4xHchtVMF1fnMpdS+J4SNVVGYs3RocET3cDmqJ PTFBrn7aPIKGKhimy4G+N1qkaihdHXcyZMlVStoogpYorro7qnOieqjVmle2Y5IqOjDiEXDeOfg y/tSqCA== X-Google-Smtp-Source: AGHT+IH10+6CBxqa1obwGhtxkz9iOMN8jfrH74bwHIBvEWL+FWgb30WsryZCuj71R9V67aLEnEs04iSsxh8= X-Received: from plbbi2.prod.google.com ([2002:a17:902:bf02:b0:2a0:c92e:a37a]) (user=seanjc job=prod-delivery.src-stubby-dispatcher) by 2002:a17:903:2f4e:b0:2a1:388c:ca63 with SMTP id d9443c01a7336-2a3ee48ab8bmr33621325ad.31.1767818748919; Wed, 07 Jan 2026 12:45:48 -0800 (PST) Reply-To: Sean Christopherson Date: Wed, 7 Jan 2026 12:45:46 -0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 X-Mailer: git-send-email 2.52.0.351.gbe84eed79e-goog Message-ID: <20260107204546.570403-1-seanjc@google.com> Subject: [PATCH] KVM: SVM: Fix an off-by-one typo in the comment for enabling AVIC by default From: Sean Christopherson To: Sean Christopherson , Paolo Bonzini Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Naveen N Rao Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Fix a goof in the comment that documents KVM's logic for enabling AVIC by default to reference Zen5+ as family 0x1A (Zen5), not family 0x19 (Zen4). The code is correct (checks for _greater_ than 0x19), only the comment is flawed. Fixes: ca2967de5a5b ("KVM: SVM: Enable AVIC by default for Zen4+ if x2AVIC = is support") Cc: Naveen N Rao (AMD) Signed-off-by: Sean Christopherson Acked-by: Naveen N Rao (AMD) --- arch/x86/kvm/svm/avic.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kvm/svm/avic.c b/arch/x86/kvm/svm/avic.c index 6b77b2033208..7e62d05c2136 100644 --- a/arch/x86/kvm/svm/avic.c +++ b/arch/x86/kvm/svm/avic.c @@ -1224,7 +1224,7 @@ static bool __init avic_want_avic_enabled(void) * In "auto" mode, enable AVIC by default for Zen4+ if x2AVIC is * supported (to avoid enabling partial support by default, and because * x2AVIC should be supported by all Zen4+ CPUs). Explicitly check for - * family 0x19 and later (Zen5+), as the kernel's synthetic ZenX flags + * family 0x1A and later (Zen5+), as the kernel's synthetic ZenX flags * aren't inclusive of previous generations, i.e. the kernel will set * at most one ZenX feature flag. */ base-commit: 9448598b22c50c8a5bb77a9103e2d49f134c9578 --=20 2.52.0.351.gbe84eed79e-goog