From: Ingo Molnar <mingo@kernel.org>
To: linux-kernel@vger.kernel.org
Cc: Juergen Gross <jgross@suse.com>,
"H . Peter Anvin" <hpa@zytor.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Peter Zijlstra <peterz@infradead.org>,
Borislav Petkov <bp@alien8.de>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@kernel.org>
Subject: [PATCH 51/53] x86/alternatives: Rename 'apply_relocation()' to 'text_poke_apply_relocation()'
Date: Fri, 11 Apr 2025 07:41:03 +0200 [thread overview]
Message-ID: <20250411054105.2341982-52-mingo@kernel.org> (raw)
In-Reply-To: <20250411054105.2341982-1-mingo@kernel.org>
Join the text_poke_*() API namespace.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/x86/include/asm/text-patching.h | 2 +-
arch/x86/kernel/alternative.c | 6 +++---
arch/x86/kernel/callthunks.c | 6 +++---
3 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/arch/x86/include/asm/text-patching.h b/arch/x86/include/asm/text-patching.h
index a45ac8a223f3..5337f1be18f6 100644
--- a/arch/x86/include/asm/text-patching.h
+++ b/arch/x86/include/asm/text-patching.h
@@ -15,7 +15,7 @@
extern void text_poke_early(void *addr, const void *opcode, size_t len);
-extern void apply_relocation(u8 *buf, const u8 * const instr, size_t instrlen, u8 *repl, size_t repl_len);
+extern void text_poke_apply_relocation(u8 *buf, const u8 * const instr, size_t instrlen, u8 *repl, size_t repl_len);
/*
* Clear and restore the kernel write-protection flag on the local CPU.
diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
index 9ee6f879bce5..231b2acbe360 100644
--- a/arch/x86/kernel/alternative.c
+++ b/arch/x86/kernel/alternative.c
@@ -340,7 +340,7 @@ static void __apply_relocation(u8 *buf, const u8 * const instr, size_t instrlen,
}
}
-void apply_relocation(u8 *buf, const u8 * const instr, size_t instrlen, u8 *repl, size_t repl_len)
+void text_poke_apply_relocation(u8 *buf, const u8 * const instr, size_t instrlen, u8 *repl, size_t repl_len)
{
__apply_relocation(buf, instr, instrlen, repl, repl_len);
optimize_nops(instr, buf, instrlen);
@@ -496,7 +496,7 @@ void __init_or_module noinline apply_alternatives(struct alt_instr *start,
for (; insn_buff_sz < a->instrlen; insn_buff_sz++)
insn_buff[insn_buff_sz] = 0x90;
- apply_relocation(insn_buff, instr, a->instrlen, replacement, a->replacementlen);
+ text_poke_apply_relocation(insn_buff, instr, a->instrlen, replacement, a->replacementlen);
DUMP_BYTES(ALT, instr, a->instrlen, "%px: old_insn: ", instr);
DUMP_BYTES(ALT, replacement, a->replacementlen, "%px: rpl_insn: ", replacement);
@@ -1981,7 +1981,7 @@ __visible noinline void __init __alt_reloc_selftest(void *arg)
static noinline void __init alt_reloc_selftest(void)
{
/*
- * Tests apply_relocation().
+ * Tests text_poke_apply_relocation().
*
* This has a relative immediate (CALL) in a place other than the first
* instruction and additionally on x86_64 we get a RIP-relative LEA:
diff --git a/arch/x86/kernel/callthunks.c b/arch/x86/kernel/callthunks.c
index d86d7d6e750c..a951333c5995 100644
--- a/arch/x86/kernel/callthunks.c
+++ b/arch/x86/kernel/callthunks.c
@@ -185,7 +185,7 @@ static void *patch_dest(void *dest, bool direct)
u8 *pad = dest - tsize;
memcpy(insn_buff, skl_call_thunk_template, tsize);
- apply_relocation(insn_buff, pad, tsize, skl_call_thunk_template, tsize);
+ text_poke_apply_relocation(insn_buff, pad, tsize, skl_call_thunk_template, tsize);
/* Already patched? */
if (!bcmp(pad, insn_buff, tsize))
@@ -294,7 +294,7 @@ static bool is_callthunk(void *addr)
pad = (void *)(dest - tmpl_size);
memcpy(insn_buff, skl_call_thunk_template, tmpl_size);
- apply_relocation(insn_buff, pad, tmpl_size, skl_call_thunk_template, tmpl_size);
+ text_poke_apply_relocation(insn_buff, pad, tmpl_size, skl_call_thunk_template, tmpl_size);
return !bcmp(pad, insn_buff, tmpl_size);
}
@@ -312,7 +312,7 @@ int x86_call_depth_emit_accounting(u8 **pprog, void *func, void *ip)
return 0;
memcpy(insn_buff, skl_call_thunk_template, tmpl_size);
- apply_relocation(insn_buff, ip, tmpl_size, skl_call_thunk_template, tmpl_size);
+ text_poke_apply_relocation(insn_buff, ip, tmpl_size, skl_call_thunk_template, tmpl_size);
memcpy(*pprog, insn_buff, tmpl_size);
*pprog += tmpl_size;
--
2.45.2
next prev parent reply other threads:[~2025-04-11 5:43 UTC|newest]
Thread overview: 105+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-11 5:40 [PATCH -v3 00/53] Simplify, reorganize and clean up the x86 text-patching code (alternative.c) Ingo Molnar
2025-04-11 5:40 ` [PATCH 01/53] x86/alternatives: Improve code-patching scalability by removing false sharing in poke_int3_handler() Ingo Molnar
2025-04-11 10:02 ` [tip: x86/alternatives] " tip-bot2 for Eric Dumazet
2025-04-11 5:40 ` [PATCH 02/53] x86/alternatives: Document the text_poke_bp_batch() synchronization rules a bit more Ingo Molnar
2025-04-11 10:02 ` [tip: x86/alternatives] " tip-bot2 for Peter Zijlstra
2025-04-11 5:40 ` [PATCH 03/53] x86/alternatives: Rename 'struct bp_patching_desc' to 'struct int3_patching_desc' Ingo Molnar
2025-04-11 10:02 ` [tip: x86/alternatives] x86/alternatives: Rename 'struct bp_patching_desc' to 'struct text_poke_int3_vec' tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 04/53] x86/alternatives: Rename 'bp_refs' to 'int3_refs' Ingo Molnar
2025-04-11 10:02 ` [tip: x86/alternatives] x86/alternatives: Rename 'bp_refs' to 'text_poke_array_refs' tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 05/53] x86/alternatives: Rename 'text_poke_bp_batch()' to 'smp_text_poke_batch_process()' Ingo Molnar
2025-04-11 10:02 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 06/53] x86/alternatives: Rename 'text_poke_bp()' to 'smp_text_poke_single()' Ingo Molnar
2025-04-11 10:02 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 07/53] x86/alternatives: Rename 'poke_int3_handler()' to 'smp_text_poke_int3_handler()' Ingo Molnar
2025-04-11 10:02 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 08/53] x86/alternatives: Rename 'poking_mm' to 'text_poke_mm' Ingo Molnar
2025-04-11 10:02 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 09/53] x86/alternatives: Rename 'poking_addr' to 'text_poke_mm_addr' Ingo Molnar
2025-04-11 10:02 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 10/53] x86/alternatives: Rename 'bp_desc' to 'int3_desc' Ingo Molnar
2025-04-11 10:02 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 11/53] x86/alternatives: Remove duplicate 'text_poke_early()' prototype Ingo Molnar
2025-04-11 10:02 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 12/53] x86/alternatives: Update comments in int3_emulate_push() Ingo Molnar
2025-04-11 10:02 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 13/53] x86/alternatives: Remove the confusing, inaccurate & unnecessary 'temp_mm_state_t' abstraction Ingo Molnar
2025-04-11 10:02 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 14/53] x86/alternatives: Rename 'text_poke_flush()' to 'smp_text_poke_batch_flush()' Ingo Molnar
2025-04-11 10:02 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 15/53] x86/alternatives: Rename 'text_poke_finish()' to 'smp_text_poke_batch_finish()' Ingo Molnar
2025-04-11 10:02 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 16/53] x86/alternatives: Rename 'text_poke_queue()' to 'smp_text_poke_batch_add()' Ingo Molnar
2025-04-11 10:02 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 17/53] x86/alternatives: Rename 'text_poke_loc_init()' to 'text_poke_int3_loc_init()' Ingo Molnar
2025-04-11 10:02 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 18/53] x86/alternatives: Rename 'struct text_poke_loc' to 'struct smp_text_poke_loc' Ingo Molnar
2025-04-11 10:02 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 19/53] x86/alternatives: Rename 'struct int3_patching_desc' to 'struct text_poke_int3_vec' Ingo Molnar
2025-04-11 5:40 ` [PATCH 20/53] x86/alternatives: Rename 'int3_desc' to 'int3_vec' Ingo Molnar
2025-04-11 10:02 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 21/53] x86/alternatives: Add text_mutex) assert to smp_text_poke_batch_flush() Ingo Molnar
2025-04-11 10:02 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 22/53] x86/alternatives: Use non-inverted logic instead of 'tp_order_fail()' Ingo Molnar
2025-04-11 10:02 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 23/53] x86/alternatives: Remove the 'addr == NULL means forced-flush' hack from smp_text_poke_batch_finish()/smp_text_poke_batch_flush()/text_poke_addr_ordered() Ingo Molnar
2025-04-11 10:02 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 24/53] x86/alternatives: Simplify smp_text_poke_single() by using tp_vec and existing APIs Ingo Molnar
2025-04-11 10:02 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 25/53] x86/alternatives: Assert that smp_text_poke_int3_handler() can only ever handle 'tp_vec[]' based requests Ingo Molnar
2025-04-11 10:02 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 26/53] x86/alternatives: Assert input parameters in smp_text_poke_batch_process() Ingo Molnar
2025-04-11 10:02 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 27/53] x86/alternatives: Introduce 'struct smp_text_poke_array' and move tp_vec and tp_vec_nr to it Ingo Molnar
2025-04-11 10:02 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 28/53] x86/alternatives: Remove the tp_vec indirection Ingo Molnar
2025-04-11 10:02 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 29/53] x86/alternatives: Rename 'try_get_desc()' to 'try_get_text_poke_array()' Ingo Molnar
2025-04-11 10:01 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 30/53] x86/alternatives: Rename 'put_desc()' to 'put_text_poke_array()' Ingo Molnar
2025-04-11 10:01 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 31/53] x86/alternatives: Simplify try_get_text_poke_array() Ingo Molnar
2025-04-11 10:01 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 32/53] x86/alternatives: Simplify smp_text_poke_int3_handler() Ingo Molnar
2025-04-11 10:01 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 33/53] x86/alternatives: Simplify smp_text_poke_batch_process() Ingo Molnar
2025-04-11 10:01 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 34/53] x86/alternatives: Rename 'int3_refs' to 'text_poke_array_refs' Ingo Molnar
2025-04-11 5:40 ` [PATCH 35/53] x86/alternatives: Move the text_poke_array manipulation into text_poke_int3_loc_init() and rename it to __smp_text_poke_batch_add() Ingo Molnar
2025-04-11 10:01 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 36/53] x86/alternatives: Remove the mixed-patching restriction on smp_text_poke_single() Ingo Molnar
2025-04-11 10:01 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 37/53] x86/alternatives: Document 'smp_text_poke_single()' Ingo Molnar
2025-04-11 10:01 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 38/53] x86/alternatives: Add documentation for smp_text_poke_batch_add() Ingo Molnar
2025-04-11 10:01 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 39/53] x86/alternatives: Move text_poke_array completion from smp_text_poke_batch_finish() and smp_text_poke_batch_flush() to smp_text_poke_batch_process() Ingo Molnar
2025-04-11 10:01 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 40/53] x86/alternatives: Rename 'text_poke_sync()' to 'smp_text_poke_sync_each_cpu()' Ingo Molnar
2025-04-11 10:01 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 41/53] x86/alternatives: Simplify text_poke_addr_ordered() Ingo Molnar
2025-04-11 10:01 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 42/53] x86/alternatives: Constify text_poke_addr() Ingo Molnar
2025-04-11 10:01 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 43/53] x86/alternatives: Simplify and clean up patch_cmp() Ingo Molnar
2025-04-11 10:01 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 44/53] x86/alternatives: Standardize on 'tpl' local variable names for 'struct smp_text_poke_loc *' Ingo Molnar
2025-04-11 10:01 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 45/53] x86/alternatives: Rename 'TP_ARRAY_NR_ENTRIES_MAX' to 'TEXT_POKE_ARRAY_MAX' Ingo Molnar
2025-04-11 10:01 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 46/53] x86/alternatives: Rename 'POKE_MAX_OPCODE_SIZE' to 'TEXT_POKE_MAX_OPCODE_SIZE' Ingo Molnar
2025-04-11 10:01 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:40 ` [PATCH 47/53] x86/alternatives: Simplify the #include section Ingo Molnar
2025-04-11 10:01 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:41 ` [PATCH 48/53] x86/alternatives: Move declarations of vmlinux.lds.S defined section symbols to <asm/alternative.h> Ingo Molnar
2025-04-11 10:01 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:41 ` [PATCH 49/53] x86/alternatives: Remove 'smp_text_poke_batch_flush()' Ingo Molnar
2025-04-11 10:01 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:41 ` [PATCH 50/53] x86/alternatives: Update the comments in smp_text_poke_batch_process() Ingo Molnar
2025-04-11 10:01 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:41 ` Ingo Molnar [this message]
2025-04-11 10:01 ` [tip: x86/alternatives] x86/alternatives: Rename 'apply_relocation()' to 'text_poke_apply_relocation()' tip-bot2 for Ingo Molnar
2025-04-11 5:41 ` [PATCH 52/53] x86/alternatives: Add comment about noinstr expectations Ingo Molnar
2025-04-11 10:01 ` [tip: x86/alternatives] " tip-bot2 for Ingo Molnar
2025-04-11 5:41 ` [PATCH 53/53] x86/alternatives: Make smp_text_poke_batch_process() subsume smp_text_poke_batch_finish() Ingo Molnar
2025-04-11 10:01 ` [tip: x86/alternatives] " tip-bot2 for Nikolay Borisov
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