add boot partition size

hc

2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d

 kernel/arch/x86/mm/kmmio.c
..
..
@@ -130,7 +130,7 @@
130
130
 	pmdval_t v = pmd_val(*pmd);
131
131
 	if (clear) {
132
132
 		*old = v;
133
-		new_pmd = pmd_mknotpresent(*pmd);
133
+		new_pmd = pmd_mkinvalid(*pmd);
134
134
 	} else {
135
135
 		/* Presume this has been called with clear==true previously */
136
136
 		new_pmd = __pmd(*old);
..
..
@@ -173,7 +173,7 @@
173
173
 		return -1;
174
174
 	}
175
175
 
176
-	__flush_tlb_one_kernel(f->addr);
176
+	flush_tlb_one_kernel(f->addr);
177
177
 	return 0;
178
178
 }
179
179
 
..
..
@@ -193,8 +193,8 @@
193
193
 	int ret;
194
194
 	WARN_ONCE(f->armed, KERN_ERR pr_fmt("kmmio page already armed.\n"));
195
195
 	if (f->armed) {
196
-		pr_warning("double-arm: addr 0x%08lx, ref %d, old %d\n",
197
-			   f->addr, f->count, !!f->old_presence);
196
+		pr_warn("double-arm: addr 0x%08lx, ref %d, old %d\n",
197
+			f->addr, f->count, !!f->old_presence);
198
198
 	}
199
199
 	ret = clear_page_presence(f, true);
200
200
 	WARN_ONCE(ret < 0, KERN_ERR pr_fmt("arming at 0x%08lx failed.\n"),
..
..
@@ -260,7 +260,7 @@
260
260
 		goto no_kmmio;
261
261
 	}
262
262
 
263
-	ctx = &get_cpu_var(kmmio_ctx);
263
+	ctx = this_cpu_ptr(&kmmio_ctx);
264
264
 	if (ctx->active) {
265
265
 		if (page_base == ctx->addr) {
266
266
 			/*
..
..
@@ -285,7 +285,7 @@
285
285
 			pr_emerg("previous hit was at 0x%08lx.\n", ctx->addr);
286
286
 			disarm_kmmio_fault_page(faultpage);
287
287
 		}
288
-		goto no_kmmio_ctx;
288
+		goto no_kmmio;
289
289
 	}
290
290
 	ctx->active++;
291
291
 
..
..
@@ -314,11 +314,8 @@
314
314
 	 * the user should drop to single cpu before tracing.
315
315
 	 */
316
316
 
317
-	put_cpu_var(kmmio_ctx);
318
317
 	return 1; /* fault handled */
319
318
 
320
-no_kmmio_ctx:
321
-	put_cpu_var(kmmio_ctx);
322
319
 no_kmmio:
323
320
 	rcu_read_unlock();
324
321
 	preempt_enable_no_resched();
..
..
@@ -333,7 +330,7 @@
333
330
 static int post_kmmio_handler(unsigned long condition, struct pt_regs *regs)
334
331
 {
335
332
 	int ret = 0;
336
-	struct kmmio_context *ctx = &get_cpu_var(kmmio_ctx);
333
+	struct kmmio_context *ctx = this_cpu_ptr(&kmmio_ctx);
337
334
 
338
335
 	if (!ctx->active) {
339
336
 		/*
..
..
@@ -341,8 +338,7 @@
341
338
 		 * something external causing them (f.e. using a debugger while
342
339
 		 * mmio tracing enabled), or erroneous behaviour
343
340
 		 */
344
-		pr_warning("unexpected debug trap on CPU %d.\n",
345
-			   smp_processor_id());
341
+		pr_warn("unexpected debug trap on CPU %d.\n", smp_processor_id());
346
342
 		goto out;
347
343
 	}
348
344
 
..
..
@@ -372,7 +368,6 @@
372
368
 	if (!(regs->flags & X86_EFLAGS_TF))
373
369
 		ret = 1;
374
370
 out:
375
-	put_cpu_var(kmmio_ctx);
376
371
 	return ret;
377
372
 }
378
373