In order to map the override of idregs to options that a user
can easily understand, let's introduce yet another option
array, which maps an option to the corresponding idreg options.
Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx>
Reviewed-by: Catalin Marinas <catalin.marinas@xxxxxxx>
Acked-by: David Brazdil <dbrazdil@xxxxxxxxxx>
---
arch/arm64/kernel/idreg-override.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/arch/arm64/kernel/idreg-override.c b/arch/arm64/kernel/idreg-override.c
index 489aa274e3ec..4fad3fc4d104 100644
--- a/arch/arm64/kernel/idreg-override.c
+++ b/arch/arm64/kernel/idreg-override.c
@@ -35,6 +35,12 @@ static const struct ftr_set_desc * const regs[] __initdata = {
&mmfr1,
};
+static const struct {
+ const char *alias;
+ const char *feature;
+} aliases[] __initdata = {
+};
+
static char *cmdline_contains_option(const char *cmdline, const char *option)
{
char *str = strstr(cmdline, option);
@@ -88,6 +94,15 @@ static void __init match_options(const char *cmdline)
}
}
+static __init void match_aliases(const char *cmdline)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(aliases); i++)
+ if (cmdline_contains_option(cmdline, aliases[i].alias))
+ match_options(aliases[i].feature);
+}
+
static __init void parse_cmdline(void)
{
if (!IS_ENABLED(CONFIG_CMDLINE_FORCE)) {
@@ -108,6 +123,7 @@ static __init void parse_cmdline(void)
goto out;
match_options(prop);
+ match_aliases(prop);
if (!IS_ENABLED(CONFIG_CMDLINE_EXTEND))
return;
@@ -115,6 +131,7 @@ static __init void parse_cmdline(void)
out:
match_options(CONFIG_CMDLINE);
+ match_aliases(CONFIG_CMDLINE);
}
/* Keep checkers quiet */
--
2.29.2
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