From: "Brijesh Singh" <brijesh.singh@amd.com>
To: <devel@edk2.groups.io>
Cc: James Bottomley <jejb@linux.ibm.com>, Min Xu <min.m.xu@intel.com>,
"Jiewen Yao" <jiewen.yao@intel.com>,
Tom Lendacky <thomas.lendacky@amd.com>,
"Jordan Justen" <jordan.l.justen@intel.com>,
Ard Biesheuvel <ardb+tianocore@kernel.org>,
Erdem Aktas <erdemaktas@google.com>,
"Michael Roth" <Michael.Roth@amd.com>,
Gerd Hoffmann <kraxel@redhat.com>,
Brijesh Singh <brijesh.singh@amd.com>,
Michael Roth <michael.roth@amd.com>, Ray Ni <ray.ni@intel.com>,
Rahul Kumar <rahul1.kumar@intel.com>,
Eric Dong <eric.dong@intel.com>
Subject: [PATCH v9 23/32] UefiCpuPkg: add PcdGhcbHypervisorFeatures
Date: Wed, 13 Oct 2021 11:57:04 -0500 [thread overview]
Message-ID: <20211013165713.727815-24-brijesh.singh@amd.com> (raw)
In-Reply-To: <20211013165713.727815-1-brijesh.singh@amd.com>
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3275
Version 2 of the GHCB specification added a new VMGEXIT that the guest
could use for querying the hypervisor features. One of the immediate
users for it will be an AP creation code. When SEV-SNP is enabled, the
guest can use the newly added AP_CREATE VMGEXIT to create the APs.
The MpInitLib will check the hypervisor feature, and if AP_CREATE is
available, it will use it.
See GHCB spec version 2 for more details on the VMGEXIT.
Cc: Michael Roth <michael.roth@amd.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: James Bottomley <jejb@linux.ibm.com>
Cc: Min Xu <min.m.xu@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Erdem Aktas <erdemaktas@google.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
---
UefiCpuPkg/UefiCpuPkg.dec | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/UefiCpuPkg/UefiCpuPkg.dec b/UefiCpuPkg/UefiCpuPkg.dec
index 9dbaa407c399..c979a0a90a0e 100644
--- a/UefiCpuPkg/UefiCpuPkg.dec
+++ b/UefiCpuPkg/UefiCpuPkg.dec
@@ -400,5 +400,10 @@ [PcdsDynamic, PcdsDynamicEx]
# @Prompt Memory encryption attribute
gUefiCpuPkgTokenSpaceGuid.PcdConfidentialComputingGuestAttr|0|UINT64|0x60000017
+ ## This dynamic PCD contains the hypervisor features value obtained through the GHCB HYPERVISOR
+ # features VMGEXIT defined in the version 2 of GHCB spec.
+ # @Prompt GHCB Hypervisor Features
+ gUefiCpuPkgTokenSpaceGuid.PcdGhcbHypervisorFeatures|0x0|UINT64|0x60000018
+
[UserExtensions.TianoCore."ExtraFiles"]
UefiCpuPkgExtra.uni
--
2.25.1
next prev parent reply other threads:[~2021-10-13 16:58 UTC|newest]
Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-13 16:56 [PATCH v9 00/32] Add AMD Secure Nested Paging (SEV-SNP) support Brijesh Singh
2021-10-13 16:56 ` [PATCH v9 01/32] OvmfPkg/SecMain: move SEV specific routines in AmdSev.c Brijesh Singh
2021-10-14 6:59 ` Gerd Hoffmann
2021-10-13 16:56 ` [PATCH v9 02/32] UefiCpuPkg/MpInitLib: " Brijesh Singh
2021-10-14 7:00 ` Gerd Hoffmann
2021-10-13 16:56 ` [PATCH v9 03/32] OvmfPkg/ResetVector: move clearing GHCB in SecMain Brijesh Singh
2021-10-14 7:02 ` Gerd Hoffmann
2021-10-13 16:56 ` [PATCH v9 04/32] OvmfPkg/ResetVector: introduce SEV metadata descriptor for VMM use Brijesh Singh
2021-10-14 7:08 ` Gerd Hoffmann
2021-10-14 19:51 ` Brijesh Singh
2021-10-15 5:08 ` Gerd Hoffmann
2021-10-13 16:56 ` [PATCH v9 05/32] OvmfPkg: reserve SNP secrets page Brijesh Singh
2021-10-14 7:09 ` Gerd Hoffmann
2021-10-13 16:56 ` [PATCH v9 06/32] OvmfPkg: reserve CPUID page Brijesh Singh
2021-10-14 7:10 ` Gerd Hoffmann
2021-10-13 16:56 ` [PATCH v9 07/32] OvmfPkg/ResetVector: pre-validate the data pages used in SEC phase Brijesh Singh
2021-10-14 7:13 ` Gerd Hoffmann
2021-10-13 16:56 ` [PATCH v9 08/32] OvmfPkg/ResetVector: use SEV-SNP-validated CPUID values Brijesh Singh
2021-10-14 7:15 ` Gerd Hoffmann
2021-10-13 16:56 ` [PATCH v9 09/32] OvmfPkg/MemEncryptSevLib: add MemEncryptSevSnpEnabled() Brijesh Singh
2021-10-14 7:42 ` Gerd Hoffmann
2021-10-13 16:56 ` [PATCH v9 10/32] OvmfPkg/SecMain: register GHCB gpa for the SEV-SNP guest Brijesh Singh
2021-10-14 7:44 ` Gerd Hoffmann
2021-10-13 16:56 ` [PATCH v9 11/32] OvmfPkg/VmgExitLib: use SEV-SNP-validated CPUID values Brijesh Singh
2021-10-14 7:47 ` Gerd Hoffmann
2021-10-13 16:56 ` [PATCH v9 12/32] OvmfPkg/PlatformPei: register GHCB gpa for the SEV-SNP guest Brijesh Singh
2021-10-14 7:48 ` Gerd Hoffmann
2021-10-13 16:56 ` [PATCH v9 13/32] OvmfPkg/AmdSevDxe: do not use extended PCI config space Brijesh Singh
2021-10-14 7:50 ` Gerd Hoffmann
2021-10-13 16:56 ` [PATCH v9 14/32] OvmfPkg/MemEncryptSevLib: add support to validate system RAM Brijesh Singh
2021-10-14 8:02 ` Gerd Hoffmann
2021-10-13 16:56 ` [PATCH v9 15/32] OvmfPkg/MemEncryptSevLib: add function to check the VMPL0 Brijesh Singh
2021-10-14 8:03 ` Gerd Hoffmann
2021-10-13 16:56 ` [PATCH v9 16/32] OvmfPkg/BaseMemEncryptSevLib: skip the pre-validated system RAM Brijesh Singh
2021-10-14 8:19 ` Gerd Hoffmann
2021-10-13 16:56 ` [PATCH v9 17/32] OvmfPkg/MemEncryptSevLib: add support to validate > 4GB memory in PEI phase Brijesh Singh
2021-10-14 8:31 ` Gerd Hoffmann
2021-10-14 19:59 ` Brijesh Singh
2021-10-13 16:56 ` [PATCH v9 18/32] OvmfPkg/SecMain: validate the memory used for decompressing Fv Brijesh Singh
2021-10-14 8:33 ` Gerd Hoffmann
2021-10-13 16:57 ` [PATCH v9 19/32] OvmfPkg/PlatformPei: validate the system RAM when SNP is active Brijesh Singh
2021-10-14 8:34 ` Gerd Hoffmann
2021-10-13 16:57 ` [PATCH v9 20/32] UefiCpuPkg: Define ConfidentialComputingGuestAttr Brijesh Singh
2021-10-14 8:38 ` Gerd Hoffmann
2021-10-14 20:11 ` Brijesh Singh
2021-10-13 16:57 ` [PATCH v9 21/32] OvmfPkg/PlatformPei: set PcdConfidentialComputingAttr when SEV is active Brijesh Singh
2021-10-14 8:39 ` Gerd Hoffmann
2021-10-13 16:57 ` [PATCH v9 22/32] UefiCpuPkg/MpInitLib: use PcdConfidentialComputingAttr to check SEV status Brijesh Singh
2021-10-14 8:41 ` Gerd Hoffmann
2021-10-14 21:58 ` [edk2-devel] " Brijesh Singh
2021-10-13 16:57 ` Brijesh Singh [this message]
2021-10-14 8:42 ` [PATCH v9 23/32] UefiCpuPkg: add PcdGhcbHypervisorFeatures Gerd Hoffmann
2021-10-13 16:57 ` [PATCH v9 24/32] OvmfPkg/PlatformPei: set the Hypervisor Features PCD Brijesh Singh
2021-10-14 8:43 ` Gerd Hoffmann
2021-10-13 16:57 ` [PATCH v9 25/32] MdePkg/GHCB: increase the GHCB protocol max version Brijesh Singh
2021-10-14 8:43 ` Gerd Hoffmann
2021-10-13 16:57 ` [PATCH v9 26/32] UefiCpuPkg/MpLib: add support to register GHCB GPA when SEV-SNP is enabled Brijesh Singh
2021-10-14 8:44 ` Gerd Hoffmann
2021-10-13 16:57 ` [PATCH v9 27/32] UefiCpuPkg/MpInitLib: use BSP to do extended topology check Brijesh Singh
2021-10-14 8:48 ` Gerd Hoffmann
2021-10-13 16:57 ` [PATCH v9 28/32] OvmfPkg/MemEncryptSevLib: change the page state in the RMP table Brijesh Singh
2021-10-14 8:52 ` Gerd Hoffmann
2021-10-13 16:57 ` [PATCH v9 29/32] OvmfPkg/MemEncryptSevLib: skip page state change for Mmio address Brijesh Singh
2021-10-14 8:53 ` Gerd Hoffmann
2021-10-13 16:57 ` [PATCH v9 30/32] OvmfPkg/PlatformPei: mark cpuid and secrets memory reserved in EFI map Brijesh Singh
2021-10-14 8:58 ` Gerd Hoffmann
2021-10-14 22:11 ` Brijesh Singh
2021-10-15 5:26 ` Gerd Hoffmann
2021-10-15 15:46 ` Brijesh Singh
2021-10-18 6:01 ` Gerd Hoffmann
2021-10-19 14:36 ` Brijesh Singh
2021-10-20 4:46 ` Gerd Hoffmann
2021-10-13 16:57 ` [PATCH v9 31/32] OvmfPkg/AmdSev: expose the SNP reserved pages through configuration table Brijesh Singh
2021-10-14 8:59 ` Gerd Hoffmann
2021-10-13 16:57 ` [PATCH v9 32/32] UefiCpuPkg/MpInitLib: Use SEV-SNP AP Creation NAE event to launch APs Brijesh Singh
2021-10-14 9:02 ` Gerd Hoffmann
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