[Nasm-bugs] [Bug 3392754] New: Add support for RMPADJUST instruction

noreply-nasm at dev.nasm.us noreply-nasm at dev.nasm.us
Fri May 7 12:12:26 PDT 2021


            Bug ID: 3392754
           Summary: Add support for RMPADJUST instruction
           Product: NASM
           Version: 2.13.xx
          Hardware: PC
                OS: All
            Status: OPEN
          Severity: normal
          Priority: Medium
         Component: Assembler
          Assignee: nobody at nasm.us
          Reporter: brijesh.singh at amd.com
                CC: chang.seok.bae at intel.com, gorcunov at gmail.com,
                    hpa at zytor.com, nasm-bugs at nasm.us
     Obtained from: From OS distribution

The recent AMD processor added support for a new RMPADJUST instruction. The
instruction is used by the SEV-SNP guest to modify the RMP permission of a
guest page. See AMD APM volume 3 for more details.

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