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| author |   Borislav Petkov (AMD) <bp@alien8.de> | 2025-03-17 13:47:12 +0100 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2025-03-17 13:47:12 +0100 |
| commit | 4348e9177813656d5d8bd18f34b3e611df004032 (patch) | |
| tree | ea04a782a83b1e18c2199d8ff6a3a436d5cb0707 | |
| parent | x86/fpu: Use XSAVE{,OPT,C,S} and XRSTOR{,S} mnemonics in xstate.h (diff) | |
| download | wireguard-linux-4348e9177813656d5d8bd18f34b3e611df004032.tar.xz wireguard-linux-4348e9177813656d5d8bd18f34b3e611df004032.zip | |
x86/fpu: Clarify the "xa" symbolic name used in the XSTATE* macros
Tie together the %[xa] in the XSAVE/XRSTOR definitions with the
respective usage in the asm macros so that it is perfectly clear.
No functional changes.
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Diffstat (limited to '')
| -rw-r--r-- | arch/x86/kernel/fpu/xstate.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/kernel/fpu/xstate.h b/arch/x86/kernel/fpu/xstate.h index 1418423bc4c9..0fd34f53f025 100644 --- a/arch/x86/kernel/fpu/xstate.h +++ b/arch/x86/kernel/fpu/xstate.h @@ -109,6 +109,10 @@ static inline int update_pkru_in_sigframe(struct xregs_state __user *buf, u64 ma /* * After this @err contains 0 on success or the trap number when the * operation raises an exception. + * + * The [xa] input parameter below represents the struct xregs_state pointer + * and the asm symbolic name for the argument used in the XSAVE/XRSTOR insns + * above. */ #define XSTATE_OP(op, st, lmask, hmask, err) \ asm volatile("1:" op "\n\t" \ |