mirror of https://github.com/acidanthera/audk.git
3a3b12cbda
Currently, TDX exposes MTRR CPUID bit to TDX VM. So based on the CPUID, the guest software components (OVMF/TDVF and guest kernel) will access MTRR MSRs. One problem for guest to use of MTRR is the change of MTRR setting needs to set CR0.CD=1, which will case #VE for TDX. For Linux kernel, there is a mechanism called SW defined MTRR introduced by the patch https://lore.kernel.org/all/20230502120931. 20719-4-jgross@suse.com/. If this is integrated for TDX guest, then Linux kernel will not access any MTRR MSRs. So we update MtrrLibIsMtrrSupported() to always return false for TD-Guest, then TDVF will not access MTRR MSRs at all. Cc: Ray Ni <ray.ni@intel.com> Cc: Rahul Kumar <rahul1.kumar@intel.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Jiaxin Wu <jiaxin.wu@intel.com> Cc: Jiewen Yao <jiewen.yao@intel.com> Cc: Binbin Wu <binbin.wu@intel.com> Signed-off-by: Min Xu <min.m.xu@intel.com> |
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| .. | ||
| Application/Cpuid | ||
| CpuDxe | ||
| CpuDxeRiscV64 | ||
| CpuFeatures | ||
| CpuIo2Dxe | ||
| CpuIo2Smm | ||
| CpuIoPei | ||
| CpuMmio2Dxe | ||
| CpuMpPei | ||
| CpuS3DataDxe | ||
| CpuTimerDxeRiscV64 | ||
| Include | ||
| Library | ||
| MicrocodeMeasurementDxe | ||
| PiSmmCommunication | ||
| PiSmmCpuDxeSmm | ||
| ResetVector | ||
| SecCore | ||
| SecMigrationPei | ||
| Test | ||
| Universal/Acpi/S3Resume2Pei | ||
| UefiCpuPkg.ci.yaml | ||
| UefiCpuPkg.dec | ||
| UefiCpuPkg.dsc | ||
| UefiCpuPkg.uni | ||
| UefiCpuPkgExtra.uni | ||