Min Xu
6b27c11690
OvmfPkg: Check Tdx in QemuFwCfgPei to avoid DMA operation
...
RFC： https://bugzilla.tianocore.org/show_bug.cgi?id=3429
If TDX is enabled then we do not support DMA operation in PEI phase.
This is mainly because DMA in TDX guest requires using bounce buffer
(which need to allocate dynamic memory and allocating a PAGE size'd
buffer can be challenge in PEI phase).
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org >
Cc: Jordan Justen <jordan.l.justen@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 >
Acked-by: Gerd Hoffmann <kraxel@redhat.com >
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com >
Signed-off-by: Min Xu <min.m.xu@intel.com >
2022-04-02 08:15:12 +00:00
Michael D Kinney
b26f0cf9ee
OvmfPkg: Replace BSD License with BSD+Patent License
...
https://bugzilla.tianocore.org/show_bug.cgi?id=1373
Replace BSD 2-Clause License with BSD+Patent License. This change is
based on the following emails:
https://lists.01.org/pipermail/edk2-devel/2019-February/036260.html
https://lists.01.org/pipermail/edk2-devel/2018-October/030385.html
RFCs with detailed process for the license change:
V3: https://lists.01.org/pipermail/edk2-devel/2019-March/038116.html
V2: https://lists.01.org/pipermail/edk2-devel/2019-March/037669.html
V1: https://lists.01.org/pipermail/edk2-devel/2019-March/037500.html
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com >
Reviewed-by: Laszlo Ersek <lersek@redhat.com >
2019-04-09 10:58:19 -07:00
Brijesh Singh
5feae25392
OvmfPkg/QemuFwCfgLib: Implement SEV internal functions for PEI phase
...
Cc: Jordan Justen <jordan.l.justen@intel.com >
Cc: Laszlo Ersek <lersek@redhat.com >
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com >
Reviewed-by: Laszlo Ersek <lersek@redhat.com >
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com >
2017-07-10 21:17:28 -07:00
Brijesh Singh
fee47a261c
OvmfPkg/QemuFwCfgLib: Provide Pei and Dxe specific library
...
Current QemuFwCfgLib.inf is used in both Pei and Dxe phases. Add Pei
and Dxe inf file to provide a seperate QemuFwCfgLib instances for Pei
and Dxe phases.
Cc: Jordan Justen <jordan.l.justen@intel.com >
Cc: Laszlo Ersek <lersek@redhat.com >
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com >
Reviewed-by: Laszlo Ersek <lersek@redhat.com >
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com >
2017-07-10 21:17:28 -07:00
