From: "Min Xu" <min.m.xu@intel.com>
To: devel@edk2.groups.io
Cc: Min Xu <min.m.xu@intel.com>, Ray Ni <ray.ni@intel.com>,
Michael D Kinney <michael.d.kinney@intel.com>,
Liming Gao <gaoliming@byosoft.com.cn>,
Zhiguang Liu <zhiguang.liu@intel.com>,
Brijesh Singh <brijesh.singh@amd.com>,
Erdem Aktas <erdemaktas@google.com>,
James Bottomley <jejb@linux.ibm.com>,
Jiewen Yao <jiewen.yao@intel.com>,
Tom Lendacky <thomas.lendacky@amd.com>,
Gerd Hoffmann <kraxel@redhat.com>
Subject: [PATCH V10 02/47] MdePkg: Update Cpuid.h for Tdx
Date: Thu, 24 Mar 2022 08:09:48 +0800 [thread overview]
Message-ID: <20220324001033.1169-3-min.m.xu@intel.com> (raw)
In-Reply-To: <20220324001033.1169-1-min.m.xu@intel.com>
RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429
Guest software can be designed to run either as a TD, as a legacy virtual
machine, or directly on the CPU, based on enumeration of its run-time
environment. [TDX-Module] Chap 10.2 defines the flow and the new CPUID
leaf 0x21.
[TDX-Module] Architecture Specification: Intel(R) Trust Domain Extensions
Module, Chap 10.2, 344425-003US, August 2021
https://www.intel.com/content/dam/develop/external/us/en/documents/
tdx-module-1.0-public-spec-v0.931.pdf
Cc: Ray Ni <ray.ni@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Cc: Brijesh Singh <brijesh.singh@amd.com>
Cc: Erdem Aktas <erdemaktas@google.com>
Cc: James Bottomley <jejb@linux.ibm.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
---
MdePkg/Include/Register/Intel/Cpuid.h | 35 +++++++++++++++++++++++++--
1 file changed, 33 insertions(+), 2 deletions(-)
diff --git a/MdePkg/Include/Register/Intel/Cpuid.h b/MdePkg/Include/Register/Intel/Cpuid.h
index bd6349d7940d..350bf60252e1 100644
--- a/MdePkg/Include/Register/Intel/Cpuid.h
+++ b/MdePkg/Include/Register/Intel/Cpuid.h
@@ -12,6 +12,8 @@
@par Specification Reference:
Intel(R) 64 and IA-32 Architectures Software Developer's Manual, Volume 2A,
November 2018, CPUID instruction.
+ Architecture Specification: Intel(R) Trust Domain Extensions Module, Chap 10.2
+ 344425-003US, August 2021
**/
@@ -321,9 +323,9 @@ typedef union {
///
UINT32 RDRAND : 1;
///
- /// [Bit 31] Always returns 0.
+ /// [Bit 31] A value of 1 indicates that processor is in Para-Virtualized.
///
- UINT32 NotUsed : 1;
+ UINT32 ParaVirtualized : 1;
} Bits;
///
/// All bit fields as a 32-bit value
@@ -3689,6 +3691,35 @@ typedef union {
/// @}
///
+/**
+ CPUID Guest TD Run Time Environment Enumeration Leaf
+
+ @note
+ Guest software can be designed to run either as a TD, as a legacy virtual machine,
+ or directly on the CPU, based on enumeration of its run-time environment.
+ CPUID leaf 21H emulation is done by the Intel TDX module. Sub-leaf 0 returns the values
+ shown below. Other sub-leaves return 0 in EAX/EBX/ECX/EDX.
+ EAX: 0x00000000
+ EBX: 0x65746E49 "Inte"
+ ECX: 0x20202020 " "
+ EDX: 0x5844546C "lTDX"
+
+ @param EAX CPUID_GUESTTD_RUNTIME_ENVIRONMENT (0x21)
+ @param ECX Level number
+
+**/
+#define CPUID_GUESTTD_RUNTIME_ENVIRONMENT 0x21
+
+///
+/// @{ CPUID Guest TD signature values returned by Intel processors
+///
+#define CPUID_GUESTTD_SIGNATURE_GENUINE_INTEL_EBX SIGNATURE_32 ('I', 'n', 't', 'e')
+#define CPUID_GUESTTD_SIGNATURE_GENUINE_INTEL_ECX SIGNATURE_32 (' ', ' ', ' ', ' ')
+#define CPUID_GUESTTD_SIGNATURE_GENUINE_INTEL_EDX SIGNATURE_32 ('l', 'T', 'D', 'X')
+///
+/// @}
+///
+
/**
CPUID Extended Function
--
2.29.2.windows.2
next prev parent reply other threads:[~2022-03-24 0:10 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-24 0:09 [PATCH V10 00/47] Enable Intel TDX in OvmfPkg (Config-A) Min Xu
2022-03-24 0:09 ` [PATCH V10 01/47] MdePkg: Add Tdx.h Min Xu
2022-03-24 0:09 ` Min Xu [this message]
2022-03-24 0:09 ` [PATCH V10 03/47] MdePkg: Introduce basic Tdx functions in BaseLib Min Xu
2022-03-24 0:09 ` [PATCH V10 04/47] MdePkg: Add TdxLib to wrap Tdx operations Min Xu
2022-03-24 0:09 ` [PATCH V10 05/47] UefiCpuPkg: Extend VmgExitLibNull to handle #VE exception Min Xu
2022-03-24 0:09 ` [PATCH V10 06/47] OvmfPkg: Extend VmgExitLib " Min Xu
2022-03-24 0:09 ` [PATCH V10 07/47] UefiCpuPkg/CpuExceptionHandler: Add base support for the " Min Xu
2022-03-24 0:09 ` [PATCH V10 08/47] MdePkg: Add helper functions for Tdx guest in BaseIoLibIntrinsic Min Xu
2022-03-24 0:09 ` [PATCH V10 09/47] MdePkg: Support mmio " Min Xu
2022-03-24 0:09 ` [PATCH V10 10/47] MdePkg: Support IoFifo " Min Xu
2022-03-24 0:09 ` [PATCH V10 11/47] MdePkg: Support IoRead/IoWrite " Min Xu
2022-03-24 0:09 ` [PATCH V10 12/47] UefiCpuPkg: Support TDX in BaseXApicX2ApicLib Min Xu
2022-03-24 0:09 ` [PATCH V10 13/47] MdePkg: Add macro to check SEV / TDX guest Min Xu
2022-03-24 0:10 ` [PATCH V10 14/47] UefiCpuPkg: Enable Tdx support in MpInitLib Min Xu
2022-03-28 1:20 ` Ni, Ray
2022-03-28 8:04 ` Min Xu
2022-03-24 0:10 ` [PATCH V10 15/47] OvmfPkg: Add IntelTdx.h in OvmfPkg/Include/IndustryStandard Min Xu
2022-03-24 0:10 ` [PATCH V10 16/47] OvmfPkg: Add TdxMailboxLib Min Xu
2022-03-24 0:10 ` [PATCH V10 17/47] OvmfPkg: Create initial version of PlatformInitLib Min Xu
2022-03-24 0:10 ` [PATCH V10 18/47] OvmfPkg/PlatformInitLib: Add hob functions Min Xu
2022-03-24 0:10 ` [PATCH V10 19/47] OvmfPkg/PlatformPei: Move global variables to PlatformInfoHob Min Xu
2022-03-24 0:10 ` [PATCH V10 20/47] OvmfPkg/PlatformPei: Refactor MiscInitialization Min Xu
2022-03-24 0:10 ` [PATCH V10 21/47] OvmfPkg/PlatformPei: Refactor MiscInitialization for CloudHV Min Xu
2022-03-24 0:10 ` [PATCH V10 22/47] OvmfPkg/PlatformPei: Refactor AddressWidthInitialization Min Xu
2022-03-24 0:10 ` [PATCH V10 23/47] OvmfPkg/PlatformPei: Refactor MaxCpuCountInitialization Min Xu
2022-03-24 0:10 ` [PATCH V10 24/47] OvmfPkg/PlatformPei: Refactor QemuUc32BaseInitialization Min Xu
2022-03-24 0:10 ` [PATCH V10 25/47] OvmfPkg/PlatformPei: Refactor InitializeRamRegions Min Xu
2022-03-24 0:10 ` [PATCH V10 26/47] OvmfPkg/PlatformPei: Refactor MemMapInitialization Min Xu
2022-03-24 0:10 ` [PATCH V10 27/47] OvmfPkg/PlatformPei: Refactor NoexecDxeInitialization Min Xu
2022-03-24 0:10 ` [PATCH V10 28/47] OvmfPkg/PlatformPei: Refactor MiscInitialization Min Xu
2022-03-24 0:10 ` [PATCH V10 29/47] OvmfPkg/PlatformInitLib: Create MemDetect.c Min Xu
2022-03-24 0:10 ` [PATCH V10 30/47] OvmfPkg/PlatformInitLib: Move functions to Platform.c Min Xu
2022-03-24 0:10 ` [PATCH V10 31/47] OvmfPkg: Update PlatformInitLib to process Tdx hoblist Min Xu
2022-03-24 0:10 ` [PATCH V10 32/47] OvmfPkg/Sec: Declare local variable as volatile in SecCoreStartupWithStack Min Xu
2022-03-24 0:10 ` [PATCH V10 33/47] OvmfPkg: Update Sec to support Tdx Min Xu
2022-03-24 0:10 ` [PATCH V10 35/47] MdeModulePkg: Skip setting IA32_ERER.NXE if it has already been set Min Xu
2022-03-24 0:10 ` [PATCH V10 36/47] MdeModulePkg: Add PcdTdxSharedBitMask Min Xu
2022-03-24 0:10 ` [PATCH V10 37/47] UefiCpuPkg: Update AddressEncMask in CpuPageTable Min Xu
2022-03-24 0:10 ` [PATCH V10 38/47] OvmfPkg: Update PlatformInitLib for Tdx guest Min Xu
2022-03-24 0:10 ` [PATCH V10 39/47] OvmfPkg: Update PlatformPei to support " Min Xu
2022-03-24 0:10 ` [PATCH V10 40/47] OvmfPkg: Update AcpiPlatformDxe to alter MADT table Min Xu
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