Re: [edk2-devel] [PATCH v1 2/2] UefiCpuPkg: PiSmmCpuDxeSmm skip MSR_IA32_MISC_ENABLE manipulation on AMD

2020-06-16 Thread Laszlo Ersek
On 06/15/20 20:30, Garrett Kirkendall wrote: > AMD does not support MSR_IA32_MISC_ENABLE. Accessing that register > causes and exception on AMD processors. If Execution Disable is > supported, and if the processor is an AMD processor skip manipulating > MSR_IA32_MISC_ENABLE[34] XD Disable bit.

[edk2-devel] [PATCH v1 2/2] UefiCpuPkg: PiSmmCpuDxeSmm skip MSR_IA32_MISC_ENABLE manipulation on AMD

2020-06-15 Thread Kirkendall, Garrett
AMD does not support MSR_IA32_MISC_ENABLE. Accessing that register causes and exception on AMD processors. If Execution Disable is supported, and if the processor is an AMD processor skip manipulating MSR_IA32_MISC_ENABLE[34] XD Disable bit. Cc: Eric Dong Cc: Ray Ni Cc: Laszlo Ersek