From: Borislav Petkov <bp@kernel.org>
To: X86 ML <x86@kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
"Borislav Petkov (AMD)" <bp@alien8.de>
Subject: [PATCH 11/14] x86/alternative: Convert the asm ALTERNATIVE() macro
Date: Fri, 31 May 2024 14:35:08 +0200 [thread overview]
Message-ID: <20240531123512.21427-12-bp@kernel.org> (raw)
In-Reply-To: <20240531123512.21427-1-bp@kernel.org>
From: "Borislav Petkov (AMD)" <bp@alien8.de>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
---
arch/x86/include/asm/alternative.h | 22 +---------------------
1 file changed, 1 insertion(+), 21 deletions(-)
diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h
index 0df99855e003..4b17267f3f2f 100644
--- a/arch/x86/include/asm/alternative.h
+++ b/arch/x86/include/asm/alternative.h
@@ -413,24 +413,6 @@ void nop_func(void);
* @newinstr. ".skip" directive takes care of proper instruction padding
* in case @newinstr is longer than @oldinstr.
*/
-.macro ALTERNATIVE oldinstr, newinstr, ft_flags
-140:
- \oldinstr
-141:
- .skip -(((144f-143f)-(141b-140b)) > 0) * ((144f-143f)-(141b-140b)),0x90
-142:
-
- .pushsection .altinstructions,"a"
- altinstr_entry 140b,143f,\ft_flags,142b-140b,144f-143f
- .popsection
-
- .pushsection .altinstr_replacement,"ax"
-143:
- \newinstr
-144:
- .popsection
-.endm
-
#define __N_ALTERNATIVE(oldinst, newinst, flag) \
740: \
oldinst ; \
@@ -446,12 +428,10 @@ void nop_func(void);
744: \
.popsection ;
-
-.macro N_ALTERNATIVE oldinstr, newinstr, ft_flags
+.macro ALTERNATIVE oldinstr, newinstr, ft_flags
__N_ALTERNATIVE(\oldinstr, \newinstr, \ft_flags)
.endm
-
#define old_len 141b-140b
#define new_len1 144f-143f
#define new_len2 145f-144f
--
2.43.0
next prev parent reply other threads:[~2024-05-31 12:35 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-31 12:34 [PATCH 00/14] x86/alternatives: Nest them Borislav Petkov
2024-05-31 12:34 ` [PATCH 01/14] x86/alternative: Zap alternative_ternary() Borislav Petkov
2024-05-31 12:34 ` [PATCH 02/14] x86/alternatives: Add nested alternatives macros Borislav Petkov
2024-05-31 14:30 ` Uros Bizjak
2024-05-31 14:32 ` Borislav Petkov
2024-05-31 14:36 ` Borislav Petkov
2024-05-31 15:10 ` Uros Bizjak
2024-05-31 18:09 ` Borislav Petkov
2024-05-31 12:35 ` [PATCH 03/14] x86/alternative: Convert alternative() Borislav Petkov
2024-05-31 12:35 ` [PATCH 04/14] x86/alternative: Convert alternative_2() Borislav Petkov
2024-05-31 12:35 ` [PATCH 05/14] x86/alternative: Convert alternative_input() Borislav Petkov
2024-05-31 12:35 ` [PATCH 06/14] x86/alternative: Convert alternative_io() Borislav Petkov
2024-05-31 12:35 ` [PATCH 07/14] x86/alternative: Convert alternative_call() Borislav Petkov
2024-05-31 12:35 ` [PATCH 08/14] x86/alternative: Convert alternative_call_2() Borislav Petkov
2024-05-31 12:35 ` [PATCH 09/14] x86/alternative: Convert ALTERNATIVE_TERNARY() Borislav Petkov
2024-05-31 12:35 ` [PATCH 10/14] x86/alternative: Convert ALTERNATIVE_3() Borislav Petkov
2024-05-31 17:00 ` Brian Gerst
2024-06-01 9:04 ` Borislav Petkov
2024-05-31 12:35 ` Borislav Petkov [this message]
2024-05-31 12:35 ` [PATCH 12/14] x86/alternative: Convert the asm ALTERNATIVE_2() macro Borislav Petkov
2024-05-31 12:35 ` [PATCH 13/14] x86/alternative: Convert the asm ALTERNATIVE_3() macro Borislav Petkov
2024-05-31 12:35 ` [PATCH 14/14] x86/alternative: Replace the old macros Borislav Petkov
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