From nobody Wed Dec 17 22:46:45 2025 Received: from mail-pj1-f43.google.com (mail-pj1-f43.google.com [209.85.216.43]) (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 001F7225D6 for ; Thu, 13 Mar 2025 17:31:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.43 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741887103; cv=none; b=cywnbHceRuaLAQ1E2DMEKhG1ufk5yihGBC6sNecDBETFKZcAVdpgAWmtVUHkf0yAqahZozFkem2xtzA6uRMZKIjmpET8pVbchf7LnWqY4CB9DCV97Bz4ta3NHSZuE9VU6/NMpuKasW8pTKvjJgYUdVLMnRw8FJ96UbgI6lY5kX0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741887103; c=relaxed/simple; bh=yfW1gIa1MbRIx3vJ4nkUHmJnpytrI2/a0Qk/PMxYlCI=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=ZH/i1kIh+9cQB6Noj/5SNv5Rs7PcKUX0unEPFl3wMvIzPgo8pvFh01UcZWi2ETpSJLS3mpDIzIrHG02JslJHot9OD1kA9utqPavSLMzORciwPW2DAMAIEu0WyZ3AwN+1vRPrhrULLNcey9/G+ik/wfAN4r11uStUeqzx+OoQd9w= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=broadcom.com; spf=fail smtp.mailfrom=broadcom.com; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b=KwgxIzgu; arc=none smtp.client-ip=209.85.216.43 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=broadcom.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=broadcom.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b="KwgxIzgu" Received: by mail-pj1-f43.google.com with SMTP id 98e67ed59e1d1-2ff615a114bso4465364a91.0 for ; Thu, 13 Mar 2025 10:31:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; t=1741887101; x=1742491901; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=ggMXVBojLEYrYjpK3rBBG/mb1zKKBgNArl4a0+lTQ20=; b=KwgxIzguf6oSprsVGgZhsVBmBOb9K0RO3fpa/F8+A7Am9vwm/C09O/8F/I9uDYZXW1 u4w2noASygZa8b4F2yMC/lvaywPU1PQ8H3zzgdCdcwiOy3lUCF0kYQRiWMqIMY3a/PAN k5FbcVuIsIvjgXYfUBk7W8Zf2Ih0PFTmlE0b4= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1741887101; x=1742491901; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=ggMXVBojLEYrYjpK3rBBG/mb1zKKBgNArl4a0+lTQ20=; b=KUkmpehaGVXLsxpYu/wVxyN9dc2qo/ZqXsKq6Or2xIanAGnkAdXQbVvMMEd+LfpdGS nkIbkeS/vTWLaTMSTrj1oZ9445iLehQsYT+RGgnwYynyDhjsUCO+UGwnbKcb06cfKNgP x34p4KjnLHb1P6UItZ1CqkB9+G8QzRzO0WXa3gFzsoCPbab5xT9B//3ZzfdtBXRWWpSV /JGP3VlG0SaE21Iv2kyvHoaaIs0h9heoom3J9VfAJyMAmQ6Is3D14G4tAT+2n6R3hr3n YfnOAxbSEWitUc8EEPg6fSBiWxnZlh4Z61x0Q+EEWbxsPyncj/dnW4Ake5OAAaQcP3sB pyqQ== X-Forwarded-Encrypted: i=1; AJvYcCWEZa4rnGHvt3SBUrss57jKP05Xk5seokzPb27Fuiwr5P9PDhDDMgSFh1me6DlA7RATj4FG/cPFU8gPqyU=@vger.kernel.org X-Gm-Message-State: AOJu0YxxmPmeh8rVgSNWvYznJhdIeC1ZDksdZfpyTku+7vLf6wsgca6l 1JZceEDglY0m/bGOWljhQLqMnIIsW/US1wQcW/n1AWBBzhmzIY8/D1CsyYVDWg== X-Gm-Gg: ASbGncss4jMiSHAxSPwE6FOBEfW1L2sfBR4y7EUr3oiLGpebksefgxR4pBVGprr85ll O60cIKiGA1TFH/HDcKu3rFMZ5nOEYHnpZWyqnZDhAUvJDSjipACbTgk1HciPqmSY9arc4t9qcVs GyFdWKJEzF4hVsqJYr3kJh3buAGEWwOfdVk/VvuqJ9fCakx1nFvF4UQZ6NvKipVgnuvNW8BwxM+ aos6RBqOOm/VanNhXydst8bFjR6GvDJjVK0lb9OCRmROzkFUJ17Bs/emRV/tpZHSq+gxuaqmdP5 bMEwR/l4pEYN90D064DyGtuDPgsEX1L70hDo+FxUuHcFdpQziPa1gi+YSOKWVq/uxdQfG1Vp/w= = X-Google-Smtp-Source: AGHT+IHTh9DQK18PXTqgsKvgHuC0vEOJvBIRPhsGggDCXl4nz4ApyCfoHStC5pwpS2+3w/OHm4FWkQ== X-Received: by 2002:a05:6a00:844:b0:725:41c4:dbc7 with SMTP id d2e1a72fcca58-737107120d6mr4984412b3a.4.1741887101113; Thu, 13 Mar 2025 10:31:41 -0700 (PDT) Received: from photon-dev.. ([192.19.161.250]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7371167d89asm1646471b3a.94.2025.03.13.10.31.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 13 Mar 2025 10:31:40 -0700 (PDT) From: Ajay Kaher To: bp@alien8.de, thomas.lendacky@amd.com Cc: ajay.kaher@broadcom.com, alexey.makhalov@broadcom.com, bcm-kernel-feedback-list@broadcom.com, bo.gan@broadcom.com, dave.hansen@linux.intel.com, florian.fainelli@broadcom.com, hpa@zytor.com, kevinloughlin@google.com, linux-kernel@vger.kernel.org, mingo@redhat.com, tglx@linutronix.de, vamsi-krishna.brahmajosyula@broadcom.com, vasavi.sirnapalli@broadcom.com, virtualization@lists.linux.dev, x86@kernel.org, ye.li@broadcom.com Subject: [PATCH v2] sev-snp: parse MP tables for VMware hypervisor Date: Thu, 13 Mar 2025 17:31:11 +0000 Message-Id: <20250313173111.10918-1-ajay.kaher@broadcom.com> X-Mailer: git-send-email 2.39.4 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" For VMware hypervisor, SEV-SNP enabled VM's could boot without UEFI. In this case, mpparse_find_mptable() has to be called to parse MP tables which contains boot information. Fixes: 0f4a1e80989a ("x86/sev: Skip ROM range scans and validation for SEV-= SNP guests") Co-developed-by: Ye Li Signed-off-by: Ye Li Signed-off-by: Ajay Kaher Tested-by: Ye Li Reviewed-by: Kevin Loughlin Acked-by: Borislav Petkov (AMD) --- Changes since v1: https://lore.kernel.org/lkml/20241219114400.858980-1-ajay.kaher@broadcom.co= m/ - use cc_platform_has(CC_ATTR_GUEST_SEV_SNP) instead of (sev_status & MSR_AMD64_SEV_SNP_ENABLED) - remove unwanted header files --- arch/x86/kernel/cpu/vmware.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/x86/kernel/cpu/vmware.c b/arch/x86/kernel/cpu/vmware.c index 00189cdeb..cb3f900c4 100644 --- a/arch/x86/kernel/cpu/vmware.c +++ b/arch/x86/kernel/cpu/vmware.c @@ -26,6 +26,7 @@ #include #include #include +#include #include #include #include @@ -429,6 +430,9 @@ static void __init vmware_platform_setup(void) pr_warn("Failed to get TSC freq from the hypervisor\n"); } =20 + if (cc_platform_has(CC_ATTR_GUEST_SEV_SNP) && !efi_enabled(EFI_BOOT)) + x86_init.mpparse.find_mptable =3D mpparse_find_mptable; + vmware_paravirt_ops_setup(); =20 #ifdef CONFIG_X86_IO_APIC --=20 2.39.4