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refactoring

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Andreas Abel
2022-01-12 23:21:00 +01:00
parent 39f97457c6
commit 40e764db45
1 changed files with 10 additions and 3 deletions
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13
kernel/nb_km.c
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@@ -430,6 +430,7 @@ static ssize_t code_offset_show(struct kobject *kobj, struct kobj_attribute *att
}
static ssize_t code_offset_store(struct kobject *kobj, struct kobj_attribute *attr, const char *buf, size_t count) {
sscanf(buf, "%zu", &code_offset);
runtime_code = runtime_code_base + code_offset;
return count;
}
static struct kobj_attribute code_offset_attribute =__ATTR(code_offset, 0660, code_offset_show, code_offset_store);
@@ -558,20 +559,26 @@ static void disable_interrupts_preemption(void) {
apic_write(APIC_LVTERR, prev_LVTERR | APIC_LVT_MASKED);
}
static int run_nanoBench(struct seq_file *m, void *v) {
static bool check_memory_allocations(void) {
for (int i=0; i<MAX_PROGRAMMABLE_COUNTERS; i++) {
if (!measurement_results[i] || !measurement_results_base[i]) {
pr_err("Could not allocate memory for measurement_results\n");
return -1;
return false;
}
}
size_t req_code_length = code_offset + get_required_runtime_code_length();
if (req_code_length > runtime_code_base_memory_size) {
pr_err("Maximum supported code size %zu kB; requested %zu kB\n", runtime_code_base_memory_size/1024, req_code_length/1024);
return false;
}
return true;
}
static int run_nanoBench(struct seq_file *m, void *v) {
if (!check_memory_allocations()) {
return -1;
}
runtime_code = runtime_code_base + code_offset;
kernel_fpu_begin();
disable_interrupts_preemption();