mirror of https://github.com/acidanthera/audk.git
87184487d2
The patch adds a new X64 only PCD PcdCpuSmmRestrictedMemoryAccess. The PCD indicates access to non-SMRAM memory is restricted to reserved, runtime and ACPI NVS type after SmmReadyToLock. MMIO access is always allowed regardless of the value of this PCD. Loose of such restriction is only required by RAS components in X64 platforms. The PCD value is considered as constantly TRUE in IA32 platforms. When the PCD value is TRUE, page table is initialized to cover all memory spaces and the memory occupied by page table is protected by page table itself as read-only. Signed-off-by: Ray Ni <ray.ni@intel.com> Reviewed-by: Eric Dong <eric.dong@intel.com> Cc: Jiewen Yao <jiewen.yao@intel.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> |
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|---|---|---|
| .. | ||
| Application/Cpuid | ||
| CpuDxe | ||
| CpuFeatures | ||
| CpuIo2Dxe | ||
| CpuIo2Smm | ||
| CpuIoPei | ||
| CpuMpPei | ||
| CpuS3DataDxe | ||
| Include | ||
| Library | ||
| PiSmmCommunication | ||
| PiSmmCpuDxeSmm | ||
| ResetVector | ||
| SecCore | ||
| Universal/Acpi/S3Resume2Pei | ||
| UefiCpuPkg.dec | ||
| UefiCpuPkg.dsc | ||
| UefiCpuPkg.uni | ||
| UefiCpuPkgExtra.uni | ||