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| author | Ceping Sun <cepingx.sun@intel.com> | 2023-11-08 19:38:27 +0800 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2023-11-09 17:15:39 +0000 |
| commit | 8a41004643412b59f669876658bd02b8025bec71 (patch) | |
| tree | f322fe466436b8d6665fc35c65af6ca64b0ebcf2 /BaseTools | |
| parent | 212cf07aaa149160d37ce3c383a13d012ca45c01 (diff) | |
| download | edk2-8a41004643412b59f669876658bd02b8025bec71.zip edk2-8a41004643412b59f669876658bd02b8025bec71.tar.gz edk2-8a41004643412b59f669876658bd02b8025bec71.tar.bz2 | |
OvmfPkg/BaseMemEncryptTdxLib: Handle retry result of MapGPA
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4572
According to section 3.2 of the [GHCI] document, if the return status
of MapGPA is "TDG.VP.VMCALL_RETRY", TD must retry this operation for the
pages in the region starting at the GPA specified in R11.
In this patch, when a retry state is detected, TDVF needs to retry the
mapping with the specified address from the output results of TdVmCall.
Reference:
[GHCI]: TDX Guest-Host-Communication Interface v1.0
https://cdrdv2.intel.com/v1/dl/getContent/726790
Cc: Erdem Aktas <erdemaktas@google.com>
Cc: James Bottomley <jejb@linux.ibm.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Min Xu <min.m.xu@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Michael Roth <michael.roth@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: Ceping Sun <cepingx.sun@intel.com>
Diffstat (limited to 'BaseTools')
0 files changed, 0 insertions, 0 deletions