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>
Subject: [PATCH 07/41] x86/alternatives: Rename 'text_poke_addr' to 'text_poke_int3_addr'
Date: Thu, 27 Mar 2025 21:53:20 +0100 [thread overview]
Message-ID: <20250327205355.378659-8-mingo@kernel.org> (raw)
In-Reply-To: <20250327205355.378659-1-mingo@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/x86/kernel/alternative.c | 22 +++++++++++-----------
1 file changed, 11 insertions(+), 11 deletions(-)
diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
index f4baeeaa6c0c..100b606d7dde 100644
--- a/arch/x86/kernel/alternative.c
+++ b/arch/x86/kernel/alternative.c
@@ -2499,7 +2499,7 @@ static __always_inline void put_desc(void)
raw_atomic_dec(refs);
}
-static __always_inline void *text_poke_addr(struct text_poke_loc *tp)
+static __always_inline void *text_poke_int3_addr(struct text_poke_loc *tp)
{
return _stext + tp->rel_addr;
}
@@ -2508,9 +2508,9 @@ static __always_inline int patch_cmp(const void *key, const void *elt)
{
struct text_poke_loc *tp = (struct text_poke_loc *) elt;
- if (key < text_poke_addr(tp))
+ if (key < text_poke_int3_addr(tp))
return -1;
- if (key > text_poke_addr(tp))
+ if (key > text_poke_int3_addr(tp))
return 1;
return 0;
}
@@ -2555,7 +2555,7 @@ noinstr int text_poke_int3_handler(struct pt_regs *regs)
goto out_put;
} else {
tp = desc->vec;
- if (text_poke_addr(tp) != ip)
+ if (text_poke_int3_addr(tp) != ip)
goto out_put;
}
@@ -2660,8 +2660,8 @@ static void text_poke_int3_batch(struct text_poke_loc *tp, unsigned int nr_entri
* First step: add a int3 trap to the address that will be patched.
*/
for (i = 0; i < nr_entries; i++) {
- tp[i].old = *(u8 *)text_poke_addr(&tp[i]);
- text_poke(text_poke_addr(&tp[i]), &int3, INT3_INSN_SIZE);
+ tp[i].old = *(u8 *)text_poke_int3_addr(&tp[i]);
+ text_poke(text_poke_int3_addr(&tp[i]), &int3, INT3_INSN_SIZE);
}
text_poke_sync();
@@ -2677,7 +2677,7 @@ static void text_poke_int3_batch(struct text_poke_loc *tp, unsigned int nr_entri
if (len - INT3_INSN_SIZE > 0) {
memcpy(old + INT3_INSN_SIZE,
- text_poke_addr(&tp[i]) + INT3_INSN_SIZE,
+ text_poke_int3_addr(&tp[i]) + INT3_INSN_SIZE,
len - INT3_INSN_SIZE);
if (len == 6) {
@@ -2686,7 +2686,7 @@ static void text_poke_int3_batch(struct text_poke_loc *tp, unsigned int nr_entri
new = _new;
}
- text_poke(text_poke_addr(&tp[i]) + INT3_INSN_SIZE,
+ text_poke(text_poke_int3_addr(&tp[i]) + INT3_INSN_SIZE,
new + INT3_INSN_SIZE,
len - INT3_INSN_SIZE);
@@ -2717,7 +2717,7 @@ static void text_poke_int3_batch(struct text_poke_loc *tp, unsigned int nr_entri
* The old instruction is recorded so that the event can be
* processed forwards or backwards.
*/
- perf_event_text_poke(text_poke_addr(&tp[i]), old, len, new, len);
+ perf_event_text_poke(text_poke_int3_addr(&tp[i]), old, len, new, len);
}
if (do_sync) {
@@ -2742,7 +2742,7 @@ static void text_poke_int3_batch(struct text_poke_loc *tp, unsigned int nr_entri
if (byte == INT3_INSN_OPCODE)
continue;
- text_poke(text_poke_addr(&tp[i]), &byte, INT3_INSN_SIZE);
+ text_poke(text_poke_int3_addr(&tp[i]), &byte, INT3_INSN_SIZE);
do_sync++;
}
@@ -2857,7 +2857,7 @@ static bool tp_order_fail(void *addr)
return true;
tp = &tp_vec[tp_vec_nr - 1];
- if ((unsigned long)text_poke_addr(tp) > (unsigned long)addr)
+ if ((unsigned long)text_poke_int3_addr(tp) > (unsigned long)addr)
return true;
return false;
--
2.45.2
next prev parent reply other threads:[~2025-03-27 20:54 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-27 20:53 [PATCH 00/41] Simplify, reorganize and clean up the x86 INT3 based batch-patching code (alternative.c) Ingo Molnar
2025-03-27 20:53 ` [PATCH 01/41] x86/alternatives: Rename 'struct bp_patching_desc' to 'struct int3_patching_desc' Ingo Molnar
2025-03-27 20:53 ` [PATCH 02/41] x86/alternatives: Rename 'bp_refs' to 'int3_refs' Ingo Molnar
2025-03-27 20:53 ` [PATCH 03/41] x86/alternatives: Rename 'text_poke_bp_batch()' to 'text_poke_int3_batch()' Ingo Molnar
2025-03-27 20:53 ` [PATCH 04/41] x86/alternatives: Rename 'text_poke_bp()' to 'text_poke_int3()' Ingo Molnar
2025-03-27 20:53 ` [PATCH 05/41] x86/alternatives: Rename 'poke_int3_handler()' to 'text_poke_int3_handler()' Ingo Molnar
2025-03-27 20:53 ` [PATCH 06/41] x86/alternatives: Rename 'poking_mm' to 'text_poke_mm' Ingo Molnar
2025-03-27 20:53 ` Ingo Molnar [this message]
2025-03-27 20:53 ` [PATCH 08/41] x86/alternatives: Rename 'poking_addr' to 'text_poke_addr' Ingo Molnar
2025-03-27 20:53 ` [PATCH 09/41] x86/alternatives: Rename 'bp_desc' to 'int3_desc' Ingo Molnar
2025-03-27 20:53 ` [PATCH 10/41] x86/alternatives: Remove duplicate 'text_poke_early()' prototype Ingo Molnar
2025-03-27 20:53 ` [PATCH 11/41] x86/alternatives: Update comments in int3_emulate_push() Ingo Molnar
2025-03-27 20:53 ` [PATCH 12/41] x86/alternatives: Remove the confusing, inaccurate & unnecessary 'temp_mm_state_t' abstraction Ingo Molnar
2025-03-27 20:53 ` [PATCH 13/41] x86/alternatives: Rename 'text_poke_flush()' to 'text_poke_int3_flush()' Ingo Molnar
2025-03-27 20:53 ` [PATCH 14/41] x86/alternatives: Rename 'text_poke_finish()' to 'text_poke_int3_finish()' Ingo Molnar
2025-03-27 20:53 ` [PATCH 15/41] x86/alternatives: Rename 'text_poke_queue()' to 'text_poke_int3_queue()' Ingo Molnar
2025-03-27 20:53 ` [PATCH 16/41] x86/alternatives: Rename 'text_poke_loc_init()' to 'text_poke_int3_loc_init()' Ingo Molnar
2025-03-27 20:53 ` [PATCH 17/41] x86/alternatives: Rename 'struct text_poke_loc' to 'struct text_poke_int3_loc' Ingo Molnar
2025-03-27 20:53 ` [PATCH 18/41] x86/alternatives: Rename 'struct int3_patching_desc' to 'struct text_poke_int3_vec' Ingo Molnar
2025-03-27 20:53 ` [PATCH 19/41] x86/alternatives: Rename 'int3_desc' to 'int3_vec' Ingo Molnar
2025-03-27 20:53 ` [PATCH 20/41] x86/alternatives: Add text_mutex) assert to text_poke_int3_flush() Ingo Molnar
2025-03-27 20:53 ` [PATCH 21/41] x86/alternatives: Assert that text_poke_int3_handler() can only ever handle 'tp_vec[]' based requests Ingo Molnar
2025-03-27 20:53 ` [PATCH 22/41] x86/alternatives: Use non-inverted logic instead of 'tp_order_fail()' Ingo Molnar
2025-03-27 20:53 ` [PATCH 23/41] x86/alternatives: Remove the 'addr == NULL means forced-flush' hack from text_poke_int3_finish()/text_poke_int3_flush()/tp_addr_ordered() Ingo Molnar
2025-03-27 20:53 ` [PATCH 24/41] x86/alternatives: Simplify text_poke_int3() by using tp_vec and existing APIs Ingo Molnar
2025-03-27 20:53 ` [PATCH 25/41] x86/alternatives: Assert input parameters in text_poke_int3_batch() Ingo Molnar
2025-03-27 20:53 ` [PATCH 26/41] x86/alternatives: Introduce 'struct text_poke_int3_array' and move tp_vec and tp_vec_nr to it Ingo Molnar
2025-03-27 20:53 ` [PATCH 27/41] x86/alternatives: Remove the tp_vec indirection Ingo Molnar
2025-03-27 20:53 ` [PATCH 28/41] x86/alternatives: Rename 'try_get_desc()' to 'try_get_tp_array()' Ingo Molnar
2025-03-27 20:53 ` [PATCH 29/41] x86/alternatives: Rename 'put_desc()' to 'put_tp_array()' Ingo Molnar
2025-03-27 20:53 ` [PATCH 30/41] x86/alternatives: Simplify try_get_tp_array() Ingo Molnar
2025-03-27 20:53 ` [PATCH 31/41] x86/alternatives: Simplify text_poke_int3_handler() Ingo Molnar
2025-03-27 20:53 ` [PATCH 32/41] x86/alternatives: Simplify text_poke_int3_batch() Ingo Molnar
2025-03-27 20:53 ` [PATCH 33/41] x86/alternatives: Rename 'text_poke_int3_batch()' to 'text_poke_int3_batch_process()' Ingo Molnar
2025-03-27 20:53 ` [PATCH 34/41] x86/alternatives: Rename 'int3_refs' to 'tp_array_refs' Ingo Molnar
2025-03-27 20:53 ` [PATCH 35/41] x86/alternatives: Move the tp_array manipulation into text_poke_int3_loc_init() and rename it to text_poke_int3_loc_add() Ingo Molnar
2025-03-27 20:53 ` [PATCH 36/41] x86/alternatives: Remove the mixed-patching restriction on text_poke_int3() Ingo Molnar
2025-03-27 20:53 ` [PATCH 37/41] x86/alternatives: Rename 'text_poke_int3()' to 'text_poke_int3_now()' Ingo Molnar
2025-03-27 20:53 ` [PATCH 38/41] x86/alternatives: Add documentation for text_poke_int3_queue() Ingo Molnar
2025-03-27 20:53 ` [PATCH 39/41] x86/alternatives: Move tp_array completion from text_poke_int3_finish() and text_poke_int3_flush() to text_poke_int3_batch_process() Ingo Molnar
2025-03-27 20:53 ` [PATCH 40/41] x86/alternatives: Rename 'text_poke_sync()' to 'text_poke_sync_each_cpu()' Ingo Molnar
2025-04-02 4:10 ` H. Peter Anvin
2025-04-03 15:05 ` Ingo Molnar
2025-03-27 20:53 ` [PATCH 41/41] x86/alternatives: Simplify tp_addr_ordered() Ingo Molnar
2025-03-27 22:19 ` [PATCH 00/41] Simplify, reorganize and clean up the x86 INT3 based batch-patching code (alternative.c) Linus Torvalds
2025-03-28 10:10 ` Ingo Molnar
2025-04-01 14:55 ` Peter Zijlstra
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