From: Andrew Cooper <andrew.cooper3@citrix.com>
To: Xen-devel <xen-devel@lists.xenproject.org>
Cc: "Andrew Cooper" <andrew.cooper3@citrix.com>,
"Jan Beulich" <JBeulich@suse.com>,
"Roger Pau Monné" <roger.pau@citrix.com>, "Wei Liu" <wl@xen.org>
Subject: [PATCH v2 1/7] xen/altcall: Use __ro_after_init now that it exists
Date: Mon, 14 Feb 2022 12:56:26 +0000 [thread overview]
Message-ID: <20220214125632.24563-2-andrew.cooper3@citrix.com> (raw)
In-Reply-To: <20220214125632.24563-1-andrew.cooper3@citrix.com>
For the !CONFIG_ALTERNATIVE_CALL case, the use of __read_mostly was only a
stopgap while nothing better existed. __ro_after_init now does, so it use.
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
---
CC: Jan Beulich <JBeulich@suse.com>
CC: Roger Pau Monné <roger.pau@citrix.com>
CC: Wei Liu <wl@xen.org>
v2:
* New
---
xen/include/xen/alternative-call.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/xen/include/xen/alternative-call.h b/xen/include/xen/alternative-call.h
index c2d3b70e312e..5c6b9a562b92 100644
--- a/xen/include/xen/alternative-call.h
+++ b/xen/include/xen/alternative-call.h
@@ -57,7 +57,7 @@
#define alternative_call(func, args...) (func)(args)
#define alternative_vcall(func, args...) (func)(args)
-#define __alt_call_maybe_initdata __read_mostly
+#define __alt_call_maybe_initdata __ro_after_init
#endif /* !CONFIG_ALTERNATIVE_CALL */
#endif /* XEN_ALTERNATIVE_CALL */
--
2.11.0
next prev parent reply other threads:[~2022-02-14 12:57 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-14 12:56 [PATCH v2 0/7] x86: Further harden function pointers Andrew Cooper
2022-02-14 12:56 ` Andrew Cooper [this message]
2022-02-14 12:59 ` [PATCH v2 1/7] xen/altcall: Use __ro_after_init now that it exists Jan Beulich
2022-02-14 12:56 ` [PATCH v2 2/7] x86/altcall: Check and optimise altcall targets Andrew Cooper
2022-02-14 12:56 ` [PATCH v2 3/7] x86/altcall: Optimise away endbr64 instruction where possible Andrew Cooper
2022-02-14 13:06 ` Jan Beulich
2022-02-14 13:31 ` Andrew Cooper
2022-02-14 13:51 ` Jan Beulich
2022-02-14 16:03 ` Andrew Cooper
2022-02-14 16:16 ` Jan Beulich
2022-03-01 11:59 ` Jan Beulich
2022-03-01 14:51 ` Andrew Cooper
2022-03-01 14:58 ` Jan Beulich
2022-02-14 12:56 ` [PATCH v2 4/7] xsm: Use __initconst_cf_clobber for xsm_ops Andrew Cooper
2022-02-14 12:56 ` [PATCH v2 5/7] x86/hvm: Use __initdata_cf_clobber for hvm_funcs Andrew Cooper
2022-02-14 13:10 ` Jan Beulich
2022-02-14 13:35 ` Andrew Cooper
2022-02-14 16:39 ` Andrew Cooper
2022-02-14 16:45 ` Jan Beulich
2022-02-14 12:56 ` [PATCH v2 6/7] x86/ucode: Use altcall, and __initconst_cf_clobber Andrew Cooper
2022-02-14 13:13 ` Jan Beulich
2022-02-14 12:56 ` [PATCH v2 7/7] x86/vpmu: Harden indirect branches Andrew Cooper
2022-02-14 13:14 ` Jan Beulich
2022-02-21 18:03 ` [PATCH v2.1 8/7] x86/IOMMU: Use altcall, and __initconst_cf_clobber Andrew Cooper
2022-02-22 9:29 ` Jan Beulich
2022-02-22 10:54 ` Andrew Cooper
2022-02-22 11:02 ` Andrew Cooper
2022-02-22 11:06 ` Jan Beulich
2022-02-22 11:34 ` Andrew Cooper
2022-02-22 11:04 ` Jan Beulich
2022-02-22 11:47 ` [PATCH v2.2 " Andrew Cooper
2022-02-22 12:10 ` Jan Beulich
2022-02-25 8:24 ` Jan Beulich
2022-03-01 14:58 ` Andrew Cooper
2022-03-02 8:10 ` Jan Beulich
2022-03-02 10:12 ` Andrew Cooper
2022-03-02 10:34 ` Jan Beulich
2022-03-02 13:39 ` Andrew Cooper
2022-03-02 19:57 ` Andrew Cooper
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