From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f74.google.com (mail-pj1-f74.google.com [209.85.216.74]) (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 E2DC7343D7F for ; Thu, 18 Jun 2026 17:43:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.74 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781804632; cv=none; b=b/qcwVI+akgFFK1J5Abu7lynK85B1EDapiiVC1F2z9FSH9Hqiu18j7ap2QodLzn8LdqlyNknisg4mb148+9tot4aoAdh2lvtAu9d2uOGM7Bm3WJ9c2W1Z067B2r47CS/mBn/ZQac9PsKE/CMjygRnYdVfLr07lxO9TU6zB4GpT0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781804632; c=relaxed/simple; bh=fw00JFi0dEHHNfau5dofIw+cE/GHLiKdl2owFIKSUA0=; h=Date:Mime-Version:Message-ID:Subject:From:To:Cc:Content-Type; b=KnjytgZSEDB8sQZPHfXu6LrTBZGdA3eSYhITapgyRU6DUg6Eq3qF6ps5VXJ5z4wkK4A5G3Nb0A7VqPlSzDaIace78OIASE23bcC8rL/L0RmghKU8spKnazFvJ/lQ7ssIKFvvJ6PUvhNCAJRWnrj7FlEJFexqW9HwS4/PxgwgMuk= 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=ro3x5Gwm; arc=none smtp.client-ip=209.85.216.74 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="ro3x5Gwm" Received: by mail-pj1-f74.google.com with SMTP id 98e67ed59e1d1-37cc07f3e36so1367205a91.2 for ; Thu, 18 Jun 2026 10:43:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1781804631; x=1782409431; darn=vger.kernel.org; h=content-transfer-encoding:cc:to:from:subject:message-id :mime-version:date:reply-to:from:to:cc:subject:date:message-id :reply-to; bh=CLq99k0RbX32MGD54eNtMUTGKLhlOR3MAsN7/4xuAC8=; b=ro3x5Gwmt26tChIj3T32WoJm8J2yGmzMsSam5CxYDYDpl55a7qumHVsEF/iZbXx6v2 zL5jlvJe/QN1pS2IWjFn2aNthzjGuhDBVV10TLaEMgcpj2caxXkFu8oaQKFOO5QEo9YQ fg1DtfPGk3i42fLGjkjFp0PxLj25kWFlyHDAsEDXy1URgNkwUhis7tCCqee4oKzbdOZH 1oM6ICntGyelkQbdaZC8BxR9ZVWktiYCfqZIaam1b+YmdFvCqdqwd7PNK+yMpCUZB/vc bozqwQIMwuMQ4/m0OLDGESsTIEcng7nB6TSYdaxp42VX3A9R+V6ZhcFR1dY4Ln44xRRF 7Uhg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1781804631; x=1782409431; h=content-transfer-encoding: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=CLq99k0RbX32MGD54eNtMUTGKLhlOR3MAsN7/4xuAC8=; b=G1b78+PWXB3wGS7mx1WXi4aHSiUhNhkWeQebO5ywS8IR+aLfZIgsDVkUqGMO9oqA0z bonuu8q6L6q5TqETw0UZb801j+WXaScfCv1GLzcBGmo/DXSzdkxi80MKh8TKVphgdsSZ p1Zq7voMenM+xHrfobW3hOwrIrAj5HLBnV0Npz7dpaZYTI6S1RY0uS+lYgpTF7Tn81R+ VE6S7w0mOlIBx6WuJGYdWYbRH7sImvYGJRNZiqsQNOG60FSo0xV5TFs4rKnPaR+bKc5y qH1o2N0z+K17pCTpMaip9Mkojv4ViVdz/R/J0poBZ77S1jj0gTR++eDQRNvNwnXvWSZb AlVw== X-Forwarded-Encrypted: i=1; AFNElJ8tMCO/hb9UdBJ+qUoCx517hDhH6tEp3FZwwM/zz3rMqJKmTMc9WVqAmZaiUDA6rKal+g1YYDYU26ZlWx4=@vger.kernel.org X-Gm-Message-State: AOJu0YwXzrTHmDHZxhQCwxh8+ZTR9TQjF/qubIv+49TXOknTYQ0yuiKR 4RUqFsrAVFXHvbmBKM02otLWF0XutDbyuUUxNuJCsRQ1CQ/gbU2idY8rdkawrEMpjEDDTzIG5Xv 8EiQdVQ== X-Received: from pjbmr3.prod.google.com ([2002:a17:90b:2383:b0:36b:bbb3:1b83]) (user=seanjc job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90a:d610:b0:36b:9c4a:e05d with SMTP id 98e67ed59e1d1-37d160b500dmr393265a91.17.1781804630927; Thu, 18 Jun 2026 10:43:50 -0700 (PDT) Reply-To: Sean Christopherson Date: Thu, 18 Jun 2026 10:43:45 -0700 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 2.55.0.rc0.738.g0c8ab3ebcc-goog Message-ID: <20260618174347.1981064-1-seanjc@google.com> Subject: [PATCH v3 0/2] KVM: x86: Fix VM-Entry fail due to stale CR8 intercept From: Sean Christopherson To: Sean Christopherson , Paolo Bonzini Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, syzbot ci , Stefano Garzarella , "=?UTF-8?q?Carlos=20L=C3=B3pez?=" Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Carlos' fix for a bug where KVM neglects to update TPR_THRESHOLD and runs afoul of VMX's consistency check that the current TPR won't immediately generate a VM-Exit. v3: Call get_vmcs12() iff is_guest_mode() is true to workaround a lockdep false positive. [syzbot] v2: - https://lore.kernel.org/all/20260610214523.2905255-2-clopez@suse.de - Call kvm_lapic_update_cr8_intercept() from apic_update_ppr() instead of issuing KVM_REQ_EVENTS from handle_tpr_below_threshold(). Carlos L=C3=B3pez (1): KVM: x86: Unconditionally recompute CR8 intercept on PPR update Sean Christopherson (1): KVM: VMX: Grab vmcs12 on CR8 interception update iff vCPU is in guest mode arch/x86/kvm/lapic.c | 2 ++ arch/x86/kvm/vmx/vmx.c | 3 +-- arch/x86/kvm/x86.c | 5 +---- 3 files changed, 4 insertions(+), 6 deletions(-) base-commit: 9d4853b044beefa21c4ee3e18c40653601a64ced --=20 2.55.0.rc0.738.g0c8ab3ebcc-goog