From nobody Sun Apr 5 18:17:37 2026 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 DA4772D978C for ; Sat, 28 Feb 2026 03:33:35 +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=1772249616; cv=none; b=XsuPntdqsFDTJNP8mBwWJiiPG9+NAyBKieIvx2vF8fuGue3qXehVZ6sE99izG6uOMx+4cJjwT4+EoBpQzVmjMo69oE2slQBaXk0CUzXqPU/IZMzgaQWdY7Irj6XbArV/bxuzgBU8FEtgvCTkFyl2rqUyY+1IweVPFkMqC4FI+Kk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772249616; c=relaxed/simple; bh=REyT1G9FpNn5qNarjefpEbiAs8imk6e7vxUrBsAhh6k=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=YE9CzDujy0ejqyPkifcbVWSCwSTN3rNxC4NCX/7DULjEq2wPP5uPIcL9CQzU1CG01ip6HnCqTyslEKffWSZtE+dNFMzCoumO7Uy42303tOQ3JRNiCMJODnfcEIX8JSbl1sPM297r+6FVVEmJI0NSNkIbNbl8NeyEDnYNiRsvPbw= 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=byvqLijD; 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--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="byvqLijD" Received: by mail-pj1-f73.google.com with SMTP id 98e67ed59e1d1-354c0234c1fso1773477a91.2 for ; Fri, 27 Feb 2026 19:33:35 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1772249615; x=1772854415; 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=p2bfImGdIG+xeppbQBLGWsINeVh1ZuCF8UpEceLrB0k=; b=byvqLijDYS1ARZHOss4Te1V/eNiXHMYsYfxilzSmquoyyJdnTZSIuVfO+HUBEV/j0J Z9jagL3st+5haVfcSQrNylaQffoJo4xTOJiNCakNfxJ2o+VYnxqyBaP+iNrwTsBooxGk MJLtJ+ZGCWR2ZntPQKVy0OT/xX8Vp81dbu758in8FhBr/dW5fWDouJnP6ai15tAXc3vj uaxNPrbB7/VJ8ma6AJbkiXaLeMtjEE/ttdbbeUfv0PQxj43Jh39XUxwNsmBvdV1ttnKC IufmxX/4FGexN6BjyPi2mIn827EeIHLoYI4UOlwRMHHMfsDQeK9v9Pb+TxlKUljSdsrm RGSQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1772249615; x=1772854415; 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=p2bfImGdIG+xeppbQBLGWsINeVh1ZuCF8UpEceLrB0k=; b=NTTlwL34dS3GKYNq6Bha9/AfvuRVuAN94YrIYUW8V0NFvHRrixdTOIU9wTtfdWMqzB Z1zZ+A8oEx+fuU3N3/jxE1nutJ4AGuo5/OJqcYduGown04jO0pDoMFBxamWxMzNyURaa 2rcO5BHtHiyknSxUr4hpKHngrqjJThPQ1CfsKQ7+RgSX1RgVryTz/4nhtcfot5WgZbwS oOdiS6Mkd301HWzLThxGM0KB3pvS0MSuLaM3V1LyXS0YLPXOGbmTaLzkYQYNwDWzxGY2 IlVfayYrH+qVFRXDaEP8+NRaelTAV5YqRMNSAI+T/i17XoTwB6onhSI3e95QhlUh2T+j sWYQ== X-Forwarded-Encrypted: i=1; AJvYcCVBOfX1Ff7SLpBEv/s1c3WWQiJLokJ9xnFhUjSI5cE7wp3nu5qFI5sKlv+Nn89KF4tv2NWQvfGny4YQHjQ=@vger.kernel.org X-Gm-Message-State: AOJu0Yx38vSWpFRMXQn34ZU19L0sKPZkjeWjOlHiXQSxkxDzHQYaXEAW HWGbzrUNQPtEG58Rpbirzq+Qeo6VaWn2Ug4rstX+6IvSYwxn0MWJ5f/Uz3Cvkd131oY1rGtr5Q2 IEqvqE17RYZv1UQ== X-Received: from pjtu4.prod.google.com ([2002:a17:90a:c884:b0:352:d931:fa5b]) (user=chengkev job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:5747:b0:340:25f0:a9b with SMTP id 98e67ed59e1d1-35965ce437amr4747029a91.33.1772249615193; Fri, 27 Feb 2026 19:33:35 -0800 (PST) Date: Sat, 28 Feb 2026 03:33:26 +0000 In-Reply-To: <20260228033328.2285047-1-chengkev@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260228033328.2285047-1-chengkev@google.com> X-Mailer: git-send-email 2.53.0.473.g4a7958ca14-goog Message-ID: <20260228033328.2285047-3-chengkev@google.com> Subject: [PATCH V4 2/4] 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@kernel.org, Kevin Cheng , Yosry Ahmed 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 25b15934330bb..249bc3efe993a 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -2386,6 +2386,9 @@ static int invlpga_interception(struct kvm_vcpu *vcpu) gva_t gva =3D kvm_rax_read(vcpu); u32 asid =3D kvm_rcx_read(vcpu); + if (nested_svm_check_permissions(vcpu)) + return 1; + /* FIXME: Handle an address size prefix. */ if (!is_long_mode(vcpu)) gva =3D (u32)gva; -- 2.53.0.473.g4a7958ca14-goog