[Nasm-bugs] [Bug 3392755] New: Add support for the VMGEXIT instruction
noreply-nasm at dev.nasm.us
noreply-nasm at dev.nasm.us
Fri May 7 14:04:00 PDT 2021
https://bugzilla.nasm.us/show_bug.cgi?id=3392755
Bug ID: 3392755
Summary: Add support for the VMGEXIT instruction
Product: NASM
Version: unspecified
Hardware: All
OS: All
Status: OPEN
Severity: normal
Priority: Medium
Component: Assembler
Assignee: nobody at nasm.us
Reporter: thomas.lendacky 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
Recent AMD processors introduced a new instruction, VMGEXIT. This instruction
is used by an SEV-ES/SEV-SNP guest to perform explicit communication between
the guest and the hypervisor.
Please see AMD64 Architecture Programmer's Manual Volume 3
(https://www.amd.com/system/files/TechDocs/24594.pdf) for full details.
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