x86/virt/tdx: Reset software states during TDX module shutdown

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The TDX module requires a one-time global initialization (TDH.SYS.INIT) and
per-CPU initialization (TDH.SYS.LP.INIT) before use. These initializations
are guarded by software flags to prevent repetition.

Reset all software flags guarding the initialization flows to allow the
global and per-CPU initializations to be triggered again after updates.

[ dhansen: trim down changelog ]

Signed-off-by: Chao Gao <chao.gao@intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Tony Lindgren <tony.lindgren@linux.intel.com>
Reviewed-by: Kai Huang <kai.huang@intel.com>
Reviewed-by: Rick Edgecombe <rick.p.edgecombe@intel.com>
Link: https://patch.msgid.link/20260520133909.409394-18-chao.gao@intel.com

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Chao Gao 2026-05-20 15:29:06 -07:00 • committed by Dave Hansen

parent 9ea06080a6

commit 65a6542a81

1 changed files with 16 additions and 1 deletions

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arch/x86/virt/vmx/tdx/tdx.c

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