From nobody Mon Feb 9 00:53:33 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 7555C37E30C for ; Mon, 12 Jan 2026 17:45:47 +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=1768239951; cv=none; b=ReeMNGOMLZEDSoA3+9whu3Hw13QM5qZkPhu/+vCGGT3XP/eowlU++RHeDpE6m/8rtKw29qS89o0l7QTdSXdJUUBQEX8HnO/vMJFwdWYJYl4nkFswJXPp6Kdaic+v3Ge+oofyncwaSIGPl03WlCFGcn4XpBO1jxcgUDQAPV164AI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768239951; c=relaxed/simple; bh=kp2jK6zr4mIn9+6tKF3+TyYc1ZCdNqo89o7bQOtSKw0=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=JmdVbZzI16KyfSuzx80LWfw0jEZtsWZP0sY16GNUFeS+CflWpegWjveVmoqWAV1SAE+hStIe8IKb/nT2mlWSGIjjf6WGIbHbp9qTGuifHgOkenmWYy9dNqav7jm0WPtezHI3oyiIhSB9gv9ZIoIruX8ef5WAycIHNT59RfMVAUk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--chengkev.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=woJbRchq; 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--chengkev.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="woJbRchq" Received: by mail-pl1-f201.google.com with SMTP id d9443c01a7336-2a090819ed1so44801275ad.2 for ; Mon, 12 Jan 2026 09:45:47 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1768239945; x=1768844745; 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=DtWYxGviUfVuSB56QpF39Fiy0UYOG6eTR6xOLrjXEgw=; b=woJbRchqesWJKbJEspbeUuyRsKhgImpkyWwLiI54NMBSa8toyDiVY8Sf3AYrkLTtWj pgBR2Ut0jUkiD9Q28/Ay+E8l/NQbHd08xZ4crz3CVCmCRmx0dmSQlJ9G9EBagmjw6UYt HPfR3MHTlN6+dPNRDsAgqoUnkahiV+XjkMPPpOUy9wKcXOAqOScJejS/JNRfyk9E+Dax pe+7qY10p00lhOKYqQnZ9kYW7b54qcfzfGP0i4LVT5+M/D5ZjUTQ1d0gnIzrHKSEq8Wg xA0dY7inh1NjAQ9DscZwDEuW3NxK9KhNvHxLglDTu1PVaJiyOuqM5fExNYIAzfrnNO22 CQpw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1768239945; x=1768844745; 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=DtWYxGviUfVuSB56QpF39Fiy0UYOG6eTR6xOLrjXEgw=; b=OLVK7Cs0BnnadfTrIdNqvS/oJENz5OQrKBunINBi2or9LrI8DV2TMsbpf/62aJfscm kau7uwk+3U+3QlpzT2KSw2DmDeiL21ToUpHwQw3bskdOhWFrgRcthouYPNmi3++KjSdQ IPYCyeMKpY+A2/ISvCNtGuLG029rmvl070ZG+LV0EojEgmZ3ts81a1k0RWy0APkUxAJN TxNJIbIXNyZ2l40YpK1RONZxDKqKLFj8Tj9B61/ndFps2cum0J+H0qct8pG+uzYmUTix Z7wOWLYZeEjoIVY69hrdztp+r6V+7swTe2gJlfVyS5C76OtMJcihyvLCFht8uSwccN4F eISQ== X-Forwarded-Encrypted: i=1; AJvYcCUoTBQAwLNk8qxZLDe/xbIWVIhnY+9VqgnceFFQT+VZNmeHqudlHYPrRTDE5NX05tRgjZhc7HTIK+vsGkw=@vger.kernel.org X-Gm-Message-State: AOJu0YxsQTsF1buXVETb/TskJ3e1xs8p9e259M93uaIfMz03IRQuo/8Y Sczqw9+jPF0vjOn5veq76xSrWc7YEb/N3EJLg1ljaSOSnKR9x5Jg4eRS7KQHvckSRzqEKBIz9Dl 4RAs9Bnq8WeftGQ== X-Google-Smtp-Source: AGHT+IFgF8FJPYnB7e+8ftCWYYaXPtH5JLdDI4hu+IyCGEqUJbhPdnq97S24ZckmQdHtVzXwLNoJ4pWTB+QNcQ== X-Received: from pjbpm6.prod.google.com ([2002:a17:90b:3c46:b0:34a:c039:1428]) (user=chengkev job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:1dcd:b0:343:87b1:285 with SMTP id 98e67ed59e1d1-34f68c02239mr16322380a91.18.1768239944735; Mon, 12 Jan 2026 09:45:44 -0800 (PST) Date: Mon, 12 Jan 2026 17:45:33 +0000 In-Reply-To: <20260112174535.3132800-1-chengkev@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260112174535.3132800-1-chengkev@google.com> X-Mailer: git-send-email 2.52.0.457.g6b5491de43-goog Message-ID: <20260112174535.3132800-4-chengkev@google.com> Subject: [PATCH V2 3/5] KVM: SVM: Inject #UD for INVLPGA if EFER.SVME=0 From: Kevin Cheng To: seanjc@google.com, pbonzini@redhat.com Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, yosry.ahmed@linux.dev, Kevin Cheng Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" INVLPGA should cause a #UD when EFER.SVME is not set. Add a check to properly inject #UD when EFER.SVME=3D0. Signed-off-by: Kevin Cheng Reviewed-by: Yosry Ahmed --- arch/x86/kvm/svm/svm.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index 557c84a060fc6..92a2faff1ccc8 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -2306,6 +2306,9 @@ static int invlpga_interception(struct kvm_vcpu *vcpu) gva_t gva =3D kvm_rax_read(vcpu); u32 asid =3D kvm_rcx_read(vcpu); =20 + if (nested_svm_check_permissions(vcpu)) + return 1; + /* FIXME: Handle an address size prefix. */ if (!is_long_mode(vcpu)) gva =3D (u32)gva; --=20 2.52.0.457.g6b5491de43-goog