diff options
| -rw-r--r-- | arch/arm64/Kconfig | 1 | ||||
| -rw-r--r-- | arch/arm64/kernel/acpi.c | 8 |
2 files changed, 8 insertions, 1 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 1b8e97331ffb..d00ab9a71d59 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -1,5 +1,6 @@ config ARM64 def_bool y + select ACPI_REDUCED_HARDWARE_ONLY if ACPI select ARCH_BINFMT_ELF_RANDOMIZE_PIE select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE select ARCH_HAS_GCOV_PROFILE_ALL diff --git a/arch/arm64/kernel/acpi.c b/arch/arm64/kernel/acpi.c index 6468f8898530..5819ef7aa2c3 100644 --- a/arch/arm64/kernel/acpi.c +++ b/arch/arm64/kernel/acpi.c @@ -303,6 +303,11 @@ static int __init acpi_parse_fadt(struct acpi_table_header *table) */ if (table->revision > 5 || (table->revision == 5 && fadt->minor_revision >= 1)) { + if (!acpi_gbl_reduced_hardware) { + pr_err("Not hardware reduced ACPI mode, will not be supported\n"); + goto disable_acpi; + } + /* * ACPI 5.1 only has two explicit methods to boot up SMP, * PSCI and Parking protocol, but the Parking protocol is @@ -319,8 +324,9 @@ static int __init acpi_parse_fadt(struct acpi_table_header *table) pr_warn("Unsupported FADT revision %d.%d, should be 5.1+, will disable ACPI\n", table->revision, fadt->minor_revision); - disable_acpi(); +disable_acpi: + disable_acpi(); return -EINVAL; } |
