x86/virt/tdx: Clarify try_init_module_global() result caching

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TDX module global initialization is executed only once. The first call
caches both the return code and the "done" state in static function
variables.  Later callers read the variables. A lock protects the
saved state and serializes callers.

These variables will soon be moved to a global structure. Prepare for
that by treating the variables as a unit. Assign them together and
limit accesses to while the lock is held.

[ dhansen: mostly rewrite changelog ]

Signed-off-by: Chao Gao <chao.gao@intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Link: https://patch.msgid.link/20260520133909.409394-2-chao.gao@intel.com

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Chao Gao 2026-05-20 15:28:46 -07:00 • committed by Dave Hansen

parent 5209e5bfe5

commit 1ffa6a1025

1 changed files with 10 additions and 4 deletions

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

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