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Mon, 15 Dec 2025 23:41:13 +0000 (GMT) Received: from pps.filterd (iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com [127.0.0.1]) by iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com (8.18.1.2/8.18.1.2) with ESMTP id 5BFNFfj8006042; Mon, 15 Dec 2025 23:41:12 GMT Received: from pps.reinject (localhost [127.0.0.1]) by iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com (PPS) with ESMTPS id 4b0xkck9r1-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Mon, 15 Dec 2025 23:41:11 +0000 Received: from iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com (iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 5BFNfB62026078; Mon, 15 Dec 2025 23:41:11 GMT Received: from bur-virt-x6-2-100.us.oracle.com (bur-virt-x6-2-100.us.oracle.com [10.153.92.40]) by iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com (PPS) with ESMTPS id 4b0xkck9qj-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Mon, 15 Dec 2025 23:41:11 +0000 From: Ross Philipson To: linux-kernel@vger.kernel.org, x86@kernel.org, linux-integrity@vger.kernel.org, linux-doc@vger.kernel.org, linux-crypto@vger.kernel.org, kexec@lists.infradead.org, linux-efi@vger.kernel.org, iommu@lists.linux.dev Cc: ross.philipson@oracle.com, dpsmith@apertussolutions.com, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, hpa@zytor.com, dave.hansen@linux.intel.com, ardb@kernel.org, mjg59@srcf.ucam.org, James.Bottomley@hansenpartnership.com, peterhuewe@gmx.de, jarkko@kernel.org, jgg@ziepe.ca, luto@amacapital.net, nivedita@alum.mit.edu, herbert@gondor.apana.org.au, davem@davemloft.net, corbet@lwn.net, ebiederm@xmission.com, dwmw2@infradead.org, baolu.lu@linux.intel.com, kanth.ghatraju@oracle.com, andrew.cooper3@citrix.com, trenchboot-devel@googlegroups.com Subject: [PATCH v15 20/28] x86/msr: Add variable MTRR base/mask and x2apic ID registers Date: Mon, 15 Dec 2025 15:33:08 -0800 Message-ID: <20251215233316.1076248-21-ross.philipson@oracle.com> X-Mailer: git-send-email 2.43.7 In-Reply-To: <20251215233316.1076248-1-ross.philipson@oracle.com> References: <20251215233316.1076248-1-ross.philipson@oracle.com> 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 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2025-12-15_05,2025-12-15_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 phishscore=0 bulkscore=0 malwarescore=0 adultscore=0 mlxlogscore=999 mlxscore=0 spamscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2510240000 definitions=main-2512150204 X-Proofpoint-GUID: 8GFX33kh3LbllHKKPAwpayGghqJU_fyv X-Proofpoint-ORIG-GUID: 8GFX33kh3LbllHKKPAwpayGghqJU_fyv X-Authority-Analysis: v=2.4 cv=fOQ0HJae c=1 sm=1 tr=0 ts=69409c99 b=1 cx=c_pps a=zPCbziy225d3KhSqZt3L1A==:117 a=zPCbziy225d3KhSqZt3L1A==:17 a=wP3pNCr1ah4A:10 a=VkNPw1HP01LnGYTKEx00:22 a=UN5060LkAAAA:8 a=yPCof4ZbAAAA:8 a=2bHeDvDOTcPBgUZVjGoA:9 a=E6eXv-vVeS7VqOnxGRGn:22 cc=ntf awl=host:12109 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMjE1MDIwNCBTYWx0ZWRfXxS0IQyCUcry+ ncGFE6G3L8WO4ZzVN0kHeSPjqKV1YWCCaHQUGJkMIOzrqsQQ96UBvHYmvSeqmOpOh6ONjTKsX5f jonXAtB2LfVLPL1Swiohm0ct9ZT8w6Bh/JIFbnv56SsdfgFlfvF/9IdtcIlnnwDl11wAxxB15ES FFZjNBF39oq4SDpNUdFch50qV3i7uwtJPaZYE2u2AHibuv/LGP+t4vO+df+BG/h5QBTiKYSv5Y4 sgLwcR2R8QAhhKDqKUCFZdhU3eX0Tl9LzlsIw+5Note9twS3Cj+XKwRd9sezP47BvbaA2o9jqXj dq6WXg5Qnk9w2IYV/hb0aWo7EUULNsgyBJR1k+OOU2/zCDd2rBOXD3scMeQZzS83AYgwfd/dFwu y+Sjb2PBZmD2KzM2WJ25K0I2o5mB8NQ3TnE1liH2jrX3Gg6LDLs= Content-Type: text/plain; charset="utf-8" Add the MSR values required by Secure Launch to locate particular CPU cores during application processor (AP) startup, and restore the MTRR state after an Intel TXT launch. Signed-off-by: Daniel P. Smith Signed-off-by: Ross Philipson --- arch/x86/include/asm/msr-index.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-in= dex.h index 9e1720d73244..ae620e609101 100644 --- a/arch/x86/include/asm/msr-index.h +++ b/arch/x86/include/asm/msr-index.h @@ -379,6 +379,9 @@ #define MSR_IA32_RTIT_OUTPUT_BASE 0x00000560 #define MSR_IA32_RTIT_OUTPUT_MASK 0x00000561 =20 +#define MSR_MTRRphysBase0 0x00000200 +#define MSR_MTRRphysMask0 0x00000201 + #define MSR_MTRRfix64K_00000 0x00000250 #define MSR_MTRRfix16K_80000 0x00000258 #define MSR_MTRRfix16K_A0000 0x00000259 @@ -928,6 +931,8 @@ #define MSR_IA32_APICBASE_ENABLE (1<<11) #define MSR_IA32_APICBASE_BASE (0xfffff<<12) =20 +#define MSR_IA32_X2APIC_APICID 0x00000802 + #define MSR_IA32_UCODE_WRITE 0x00000079 #define MSR_IA32_UCODE_REV 0x0000008b =20 --=20 2.43.7