From: Andrew Cooper <andrew.cooper3@citrix.com>
To: Xen-devel <xen-devel@lists.xen.org>
Cc: "Andrew Cooper" <andrew.cooper3@citrix.com>,
"Roger Pau Monné" <roger.pau@citrix.com>,
"Wei Liu" <wei.liu2@citrix.com>,
"Jan Beulich" <JBeulich@suse.com>
Subject: [PATCH 1/7] x86/alt: Drop unused alternative infrastructure
Date: Mon, 12 Feb 2018 11:23:01 +0000 [thread overview]
Message-ID: <1518434587-22827-2-git-send-email-andrew.cooper3@citrix.com> (raw)
In-Reply-To: <1518434587-22827-1-git-send-email-andrew.cooper3@citrix.com>
ALTERNATIVE_3 is more complicated than ALTERNATIVE_2 when it comes to
calculating extra padding length, and we have no need for the complexity.
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
---
CC: Jan Beulich <JBeulich@suse.com>
CC: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
CC: Roger Pau Monné <roger.pau@citrix.com>
CC: Wei Liu <wei.liu2@citrix.com>
---
xen/include/asm-x86/alternative.h | 25 -------------------------
1 file changed, 25 deletions(-)
diff --git a/xen/include/asm-x86/alternative.h b/xen/include/asm-x86/alternative.h
index ba537d6..13ac104 100644
--- a/xen/include/asm-x86/alternative.h
+++ b/xen/include/asm-x86/alternative.h
@@ -65,11 +65,6 @@ extern void alternative_instructions(void);
ALTERNATIVE(oldinstr, newinstr1, feature1) \
ALTERNATIVE_N(newinstr2, feature2, 2)
-#define ALTERNATIVE_3(oldinstr, newinstr1, feature1, newinstr2, feature2, \
- newinstr3, feature3) \
- ALTERNATIVE_2(oldinstr, newinstr1, feature1, newinstr2, feature2) \
- ALTERNATIVE_N(newinstr3, feature3, 3)
-
/*
* Alternative instructions for different CPU types or capabilities.
*
@@ -118,26 +113,6 @@ extern void alternative_instructions(void);
newinstr2, feature2) \
: output : input)
-/*
- * This is similar to alternative_io. But it has three features and
- * respective instructions.
- *
- * If CPU has feature3, newinstr3 is used.
- * Otherwise, if CPU has feature2, newinstr2 is used.
- * Otherwise, if CPU has feature1, newinstr1 is used.
- * Otherwise, oldinstr is used.
- */
-#define alternative_io_3(oldinstr, newinstr1, feature1, newinstr2, \
- feature2, newinstr3, feature3, output, \
- input...) \
- asm volatile(ALTERNATIVE_3(oldinstr, newinstr1, feature1, \
- newinstr2, feature2, newinstr3, \
- feature3) \
- : output : input)
-
-/* Use this macro(s) if you need more than one output parameter. */
-#define ASM_OUTPUT2(a...) a
-
#endif /* !__ASSEMBLY__ */
#endif /* __X86_ALTERNATIVE_H__ */
--
2.1.4
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next prev parent reply other threads:[~2018-02-12 11:23 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-12 11:23 [PATCH 0/7] x86/alternatives: Support for automatic padding calculations Andrew Cooper
2018-02-12 11:23 ` Andrew Cooper [this message]
2018-02-12 12:30 ` [PATCH 1/7] x86/alt: Drop unused alternative infrastructure Wei Liu
2018-02-12 15:56 ` Roger Pau Monné
2018-02-12 15:58 ` Andrew Cooper
2018-02-13 14:22 ` Jan Beulich
2018-02-13 14:41 ` Andrew Cooper
2018-02-13 15:33 ` Jan Beulich
2018-02-14 10:02 ` Jan Beulich
2018-02-12 11:23 ` [PATCH 2/7] x86/alt: Clean up struct alt_instr and its users Andrew Cooper
2018-02-12 12:30 ` Wei Liu
2018-02-12 16:52 ` Roger Pau Monné
2018-02-12 17:18 ` Wei Liu
2018-02-12 17:53 ` Andrew Cooper
2018-02-13 14:26 ` Jan Beulich
2018-02-21 21:22 ` Konrad Rzeszutek Wilk
2018-02-12 11:23 ` [PATCH 3/7] x86/alt: Clean up the assembly used to generate alternatives Andrew Cooper
2018-02-12 12:30 ` Wei Liu
2018-02-12 17:26 ` Roger Pau Monné
2018-02-12 17:54 ` Andrew Cooper
2018-02-13 14:37 ` Jan Beulich
2018-02-23 14:03 ` Andrew Cooper
2018-02-23 15:12 ` Jan Beulich
2018-02-23 16:24 ` Andrew Cooper
2018-02-23 17:28 ` Jan Beulich
2018-02-12 11:23 ` [PATCH 4/7] x86/asm: Remove opencoded uses of altinstruction_entry Andrew Cooper
2018-02-12 12:30 ` Wei Liu
2018-02-12 12:34 ` Andrew Cooper
2018-02-13 9:56 ` Jan Beulich
2018-02-13 10:07 ` Andrew Cooper
2018-02-13 11:10 ` Jan Beulich
2018-02-12 12:52 ` Wei Liu
2018-02-12 17:46 ` Roger Pau Monné
2018-02-12 17:59 ` Andrew Cooper
2018-02-14 9:53 ` Jan Beulich
2018-02-12 11:23 ` [PATCH 5/7] x86/alt: Support for automatic padding calculations Andrew Cooper
2018-02-12 14:39 ` Wei Liu
2018-02-12 15:04 ` Andrew Cooper
2018-02-12 18:41 ` Roger Pau Monné
2018-02-12 18:45 ` Andrew Cooper
2018-02-12 18:09 ` Roger Pau Monné
2018-02-13 9:45 ` Roger Pau Monné
2018-02-13 10:09 ` Andrew Cooper
2018-02-13 10:26 ` Roger Pau Monné
2018-02-14 9:46 ` Jan Beulich
2018-02-12 11:23 ` [PATCH 6/7] x86/alt: Drop explicit padding of origin sites Andrew Cooper
2018-02-12 14:39 ` Wei Liu
2018-02-12 18:12 ` Roger Pau Monné
2018-02-14 9:53 ` Jan Beulich
2018-02-12 11:23 ` [PATCH 7/7] x86/build: Use new .nop directive when available Andrew Cooper
2018-02-12 14:40 ` Wei Liu
2018-02-13 11:08 ` Roger Pau Monné
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