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lib: sbi: Print list of all hart protection mechanisms at boot time

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Instead of printing only the best hart memory protection name at
boot time let's print a list of all hart projection mechanisms.

Signed-off-by: Anup Patel <anup.patel@oss.qualcomm.com>
Reviewed-by: Rahul Pathak <rahul.pathak@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260727042504.1743250-6-anup.patel@oss.qualcomm.com
Signed-off-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Anup Patel
2026-08-02 15:17:12 +05:30
committed by Anup Patel
parent 2636a9c2a8
commit 337c23dd66
3 changed files with 38 additions and 9 deletions
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lib/sbi/sbi_hart_protection.c
+31 -3
View File
@@ -4,13 +4,15 @@
* Copyright (c) 2025 Ventana Micro Systems Inc.
*/
#include <sbi/sbi_console.h>
#include <sbi/sbi_error.h>
#include <sbi/sbi_hart_protection.h>
#include <sbi/sbi_scratch.h>
#include <sbi/sbi_string.h>
static SBI_LIST_HEAD(hart_protection_list);
struct sbi_hart_protection *sbi_hart_memory_protection_best(void)
static struct sbi_hart_protection *__hart_memory_protection_best(void)
{
struct sbi_hart_protection *pos;
@@ -22,6 +24,32 @@ struct sbi_hart_protection *sbi_hart_memory_protection_best(void)
return NULL;
}
void sbi_hart_protection_get_str(char *out_str, int out_str_size)
{
bool memory_protect_done = false;
struct sbi_hart_protection *pos;
int offset = 0;
if (!out_str || out_str_size <= 0)
return;
sbi_memset(out_str, 0, out_str_size);
sbi_list_for_each_entry(pos, &hart_protection_list, head) {
if (pos->type == SBI_HART_PROTECTION_TYPE_MEMORY) {
if (memory_protect_done)
continue;
memory_protect_done = true;
}
sbi_snprintf(out_str + offset, out_str_size - offset, "%s,", pos->name);
offset = offset + sbi_strlen(pos->name) + 1;
}
if (offset)
out_str[offset - 1] = '\0';
else
sbi_strncpy(out_str, "none", out_str_size);
}
int sbi_hart_protection_register(struct sbi_hart_protection *hprot)
{
struct sbi_hart_protection *pos = NULL;
@@ -170,7 +198,7 @@ int sbi_hart_protection_reconfigure(struct sbi_scratch *scratch,
int sbi_hart_protection_map_range(unsigned long base, unsigned long size)
{
struct sbi_hart_protection *hprot = sbi_hart_memory_protection_best();
struct sbi_hart_protection *hprot = __hart_memory_protection_best();
if (!hprot || !hprot->map_range)
return 0;
@@ -180,7 +208,7 @@ int sbi_hart_protection_map_range(unsigned long base, unsigned long size)
int sbi_hart_protection_unmap_range(unsigned long base, unsigned long size)
{
struct sbi_hart_protection *hprot = sbi_hart_memory_protection_best();
struct sbi_hart_protection *hprot = __hart_memory_protection_best();
if (!hprot || !hprot->unmap_range)
return 0;