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| author | Hayzam Sherif <hayzam@gmail.com> | 2026-09-21 16:33:55 +0000 |
|---|---|---|
| committer | Mark Johnston <markj@FreeBSD.org> | 2026-09-21 16:36:06 +0000 |
| commit | d400b1ca31fd9b12655c83f9a7b3e8cdb68646dd (patch) | |
| tree | 5a2c0e64ae090fb22a857237837130f5a0b75aef /lldb/source/Plugins/ScriptInterpreter/Python/ScriptedThreadPythonInterface.cpp | |
| parent | 3330226fd33ae6b747c9edc97315244360ad5e54 (diff) | |
vmm: Synchronize long-mode state when emulating CR0 writes
vmx_emulate_cr0_access() sets EFER.LMA and the IA-32e guest VM-entry
control when enabling paging with EFER.LME set, but does not clear them
when disabling paging. This can leave an inconsistent guest state that
fails VM entry.
Update both fields in either direction based on EFER.LME and the CR0
value written to the VMCS. Use the mask-adjusted CR0 value so the
resulting state remains consistent with the VMX fixed-bit requirements.
Reviewed by: markj
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D59756
Diffstat (limited to 'lldb/source/Plugins/ScriptInterpreter/Python/ScriptedThreadPythonInterface.cpp')
0 files changed, 0 insertions, 0 deletions