audk/OvmfPkg/Include
Brijesh Singh 63c50d3ff2 OvmfPkg/ResetVector: cache the SEV status MSR value in workarea
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3582

In order to probe the SEV feature the BaseMemEncryptLib and Reset vector
reads the SEV_STATUS MSR. Cache the value on the first read in the
workarea. In the next patches the value saved in the workarea will
be used by the BaseMemEncryptLib. This not only eliminates the extra
MSR reads it also helps cleaning up the code in BaseMemEncryptLib.

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>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Acked-by: Jiewen Yao <jiewen.yao@intel.com>
2022-02-28 02:46:08 +00:00
..
Guid OvmfPkg/AmdSev: expose the SNP reserved pages through configuration table 2021-12-09 06:28:10 +00:00
IndustryStandard OvmfPkg: Install ACPI tables for Cloud Hypervisor 2021-12-11 14:26:05 +00:00
Library OvmfPkg/MemEncryptSevLib: add support to validate system RAM 2021-12-09 06:28:10 +00:00
Pcd OvmfPkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
Protocol OvmfPkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
Register OvmfPkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
OvmfPlatforms.h OvmfPkg: Handle Cloud Hypervisor host bridge 2021-12-11 14:26:05 +00:00
WorkArea.h OvmfPkg/ResetVector: cache the SEV status MSR value in workarea 2022-02-28 02:46:08 +00:00