diff options
Diffstat (limited to 'drivers/acpi/acpica')
| -rw-r--r-- | drivers/acpi/acpica/acobject.h | 1 | ||||
| -rw-r--r-- | drivers/acpi/acpica/dsopcode.c | 24 | ||||
| -rw-r--r-- | drivers/acpi/acpica/exfldio.c | 6 | ||||
| -rw-r--r-- | drivers/acpi/acpica/exstorob.c | 12 | ||||
| -rw-r--r-- | drivers/acpi/acpica/hwsleep.c | 3 | ||||
| -rw-r--r-- | drivers/acpi/acpica/tbfadt.c | 1 |
6 files changed, 46 insertions, 1 deletions
diff --git a/drivers/acpi/acpica/acobject.h b/drivers/acpi/acpica/acobject.h index 544dcf83492..eb6f038b03d 100644 --- a/drivers/acpi/acpica/acobject.h +++ b/drivers/acpi/acpica/acobject.h @@ -97,6 +97,7 @@ #define AOPOBJ_OBJECT_INITIALIZED 0x08 #define AOPOBJ_SETUP_COMPLETE 0x10 #define AOPOBJ_SINGLE_DATUM 0x20 +#define AOPOBJ_INVALID 0x40 /* Used if host OS won't allow an op_region address */ /****************************************************************************** * diff --git a/drivers/acpi/acpica/dsopcode.c b/drivers/acpi/acpica/dsopcode.c index 584d766e6f1..b79978f7bc7 100644 --- a/drivers/acpi/acpica/dsopcode.c +++ b/drivers/acpi/acpica/dsopcode.c @@ -397,6 +397,30 @@ acpi_status acpi_ds_get_region_arguments(union acpi_operand_object *obj_desc) status = acpi_ds_execute_arguments(node, acpi_ns_get_parent_node(node), extra_desc->extra.aml_length, extra_desc->extra.aml_start); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Validate the region address/length via the host OS */ + + status = acpi_os_validate_address(obj_desc->region.space_id, + obj_desc->region.address, + (acpi_size) obj_desc->region.length, + acpi_ut_get_node_name(node)); + + if (ACPI_FAILURE(status)) { + /* + * Invalid address/length. We will emit an error message and mark + * the region as invalid, so that it will cause an additional error if + * it is ever used. Then return AE_OK. + */ + ACPI_EXCEPTION((AE_INFO, status, + "During address validation of OpRegion [%4.4s]", + node->name.ascii)); + obj_desc->common.flags |= AOPOBJ_INVALID; + status = AE_OK; + } + return_ACPI_STATUS(status); } diff --git a/drivers/acpi/acpica/exfldio.c b/drivers/acpi/acpica/exfldio.c index d4075b82102..6687be167f5 100644 --- a/drivers/acpi/acpica/exfldio.c +++ b/drivers/acpi/acpica/exfldio.c @@ -113,6 +113,12 @@ acpi_ex_setup_region(union acpi_operand_object *obj_desc, } } + /* Exit if Address/Length have been disallowed by the host OS */ + + if (rgn_desc->common.flags & AOPOBJ_INVALID) { + return_ACPI_STATUS(AE_AML_ILLEGAL_ADDRESS); + } + /* * Exit now for SMBus address space, it has a non-linear address space * and the request cannot be directly validated diff --git a/drivers/acpi/acpica/exstorob.c b/drivers/acpi/acpica/exstorob.c index 67340cc7014..257706e7734 100644 --- a/drivers/acpi/acpica/exstorob.c +++ b/drivers/acpi/acpica/exstorob.c @@ -70,6 +70,12 @@ acpi_ex_store_buffer_to_buffer(union acpi_operand_object *source_desc, ACPI_FUNCTION_TRACE_PTR(ex_store_buffer_to_buffer, source_desc); + /* If Source and Target are the same, just return */ + + if (source_desc == target_desc) { + return_ACPI_STATUS(AE_OK); + } + /* We know that source_desc is a buffer by now */ buffer = ACPI_CAST_PTR(u8, source_desc->buffer.pointer); @@ -161,6 +167,12 @@ acpi_ex_store_string_to_string(union acpi_operand_object *source_desc, ACPI_FUNCTION_TRACE_PTR(ex_store_string_to_string, source_desc); + /* If Source and Target are the same, just return */ + + if (source_desc == target_desc) { + return_ACPI_STATUS(AE_OK); + } + /* We know that source_desc is a string by now */ buffer = ACPI_CAST_PTR(u8, source_desc->string.pointer); diff --git a/drivers/acpi/acpica/hwsleep.c b/drivers/acpi/acpica/hwsleep.c index db307a356f0..cc22f9a585b 100644 --- a/drivers/acpi/acpica/hwsleep.c +++ b/drivers/acpi/acpica/hwsleep.c @@ -45,6 +45,7 @@ #include <acpi/acpi.h> #include "accommon.h" #include "actables.h" +#include <linux/tboot.h> #define _COMPONENT ACPI_HARDWARE ACPI_MODULE_NAME("hwsleep") @@ -342,6 +343,8 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state) ACPI_FLUSH_CPU_CACHE(); + tboot_sleep(sleep_state, pm1a_control, pm1b_control); + /* Write #2: Write both SLP_TYP + SLP_EN */ status = acpi_hw_write_pm1_control(pm1a_control, pm1b_control); diff --git a/drivers/acpi/acpica/tbfadt.c b/drivers/acpi/acpica/tbfadt.c index 82b02dcb942..c016335fb75 100644 --- a/drivers/acpi/acpica/tbfadt.c +++ b/drivers/acpi/acpica/tbfadt.c @@ -275,7 +275,6 @@ void acpi_tb_parse_fadt(u32 table_index) void acpi_tb_create_local_fadt(struct acpi_table_header *table, u32 length) { - /* * Check if the FADT is larger than the largest table that we expect * (the ACPI 2.0/3.0 version). If so, truncate the table, and issue |