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Message-ID: <f7de31883141bae5b555acbccf5bd5b4457d3734.1741988314.git.jpoimboe@kernel.org> Date: Fri, 14 Mar 2025 14:41:23 -0700 From: Josh Poimboeuf <jpoimboe@...nel.org> To: x86@...nel.org Cc: linux-kernel@...r.kernel.org, Linus Torvalds <torvalds@...ux-foundation.org>, Peter Zijlstra <peterz@...radead.org>, Borislav Petkov <bp@...en8.de>, "H. Peter Anvin" <hpa@...or.com>, Uros Bizjak <ubizjak@...il.com>, Andrew Cooper <andrew.cooper3@...rix.com>, Ingo Molnar <mingo@...nel.org> Subject: [PATCH 10/20] x86/alternative: Add alternative_2_io() Make an ALTERNATIVE_2() version of alternative_io(). Signed-off-by: Josh Poimboeuf <jpoimboe@...nel.org> --- arch/x86/include/asm/alternative.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h index 870b1633e1e0..0acbb013e7ae 100644 --- a/arch/x86/include/asm/alternative.h +++ b/arch/x86/include/asm/alternative.h @@ -231,6 +231,14 @@ static inline int alternatives_text_reserved(void *start, void *end) : input \ : "memory", ## clobbers) +#define alternative_2_io(oldinstr, newinstr1, ft_flags1, newinstr2, ft_flags2, \ + output, input, clobbers...) \ + asm_inline volatile(ALTERNATIVE_2(oldinstr, newinstr1, ft_flags1, \ + newinstr2, ft_flags2) \ + : output \ + : input \ + : "memory", ## clobbers) + /* * Like alternative_io, but for replacing a direct call with another one. * -- 2.48.1
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