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| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2020-02-26 20:05:06 +0100 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2020-03-04 08:48:09 +0000 |
| commit | 6b3d196a7c21635afdf4e680c87d0bb76b4bf904 (patch) | |
| tree | d41c03249e59bba986f3861dff322ff52d493c2d | |
| parent | 4c0f6e349d32cf27a7104ddd3e729d6ebc88ea70 (diff) | |
| download | edk2-6b3d196a7c21635afdf4e680c87d0bb76b4bf904.tar.gz edk2-6b3d196a7c21635afdf4e680c87d0bb76b4bf904.tar.bz2 edk2-6b3d196a7c21635afdf4e680c87d0bb76b4bf904.zip | |
OvmfPkg/Tcg2ConfigPei: introduce a signalling PPI to depex on
On ARM systems, the TPM does not live at a fixed address, and so we
need the platform to discover it first. So introduce a PPI that signals
that the TPM address has been discovered and recorded in the appropriate
PCD, and make Tcg2ConfigPei depex on it when built for ARM or AARCH64.
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2560
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
| -rw-r--r-- | OvmfPkg/OvmfPkg.dec | 5 | ||||
| -rw-r--r-- | OvmfPkg/Tcg/Tcg2Config/Tcg2ConfigPei.inf | 6 |
2 files changed, 10 insertions, 1 deletions
diff --git a/OvmfPkg/OvmfPkg.dec b/OvmfPkg/OvmfPkg.dec index 4c5b6511cb..30faecb7a5 100644 --- a/OvmfPkg/OvmfPkg.dec +++ b/OvmfPkg/OvmfPkg.dec @@ -87,6 +87,11 @@ gEfiLegacyBiosGuid = {0x2E3044AC, 0x879F, 0x490F, {0x97, 0x60, 0xBB, 0xDF, 0xAF, 0x69, 0x5F, 0x50}}
gEfiLegacyDevOrderVariableGuid = {0xa56074db, 0x65fe, 0x45f7, {0xbd, 0x21, 0x2d, 0x2b, 0xdd, 0x8e, 0x96, 0x52}}
+[Ppis]
+ # PPI whose presence in the PPI database signals that the TPM base address
+ # has been discovered and recorded
+ gOvmfTpmDiscoveredPpiGuid = {0xb9a61ad0, 0x2802, 0x41f3, {0xb5, 0x13, 0x96, 0x51, 0xce, 0x6b, 0xd5, 0x75}}
+
[Protocols]
gVirtioDeviceProtocolGuid = {0xfa920010, 0x6785, 0x4941, {0xb6, 0xec, 0x49, 0x8c, 0x57, 0x9f, 0x16, 0x0a}}
gXenBusProtocolGuid = {0x3d3ca290, 0xb9a5, 0x11e3, {0xb7, 0x5d, 0xb8, 0xac, 0x6f, 0x7d, 0x65, 0xe6}}
diff --git a/OvmfPkg/Tcg/Tcg2Config/Tcg2ConfigPei.inf b/OvmfPkg/Tcg/Tcg2Config/Tcg2ConfigPei.inf index e34cd62106..55684ba045 100644 --- a/OvmfPkg/Tcg/Tcg2Config/Tcg2ConfigPei.inf +++ b/OvmfPkg/Tcg/Tcg2Config/Tcg2ConfigPei.inf @@ -25,6 +25,7 @@ [Packages]
MdePkg/MdePkg.dec
MdeModulePkg/MdeModulePkg.dec
+ OvmfPkg/OvmfPkg.dec
SecurityPkg/SecurityPkg.dec
[LibraryClasses]
@@ -43,5 +44,8 @@ [Pcd]
gEfiSecurityPkgTokenSpaceGuid.PcdTpmInstanceGuid ## PRODUCES
-[Depex]
+[Depex.IA32, Depex.X64]
TRUE
+
+[Depex.ARM, Depex.AARCH64]
+ gOvmfTpmDiscoveredPpiGuid
|