diff options
| author | Nikolaus Voss <nikolaus.voss@loewensteinmedical.de> | 2019-06-12 10:36:06 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2019-06-14 11:39:42 +0200 |
| commit | d06c47e3dd07fdf3f07e8fc45f2ce655e9b295c5 (patch) | |
| tree | 46b9b9e156bce8d5c2f5aec761c9a0539afa468a /drivers/acpi | |
| parent | ACPI: tables: Allow BGRT to be overridden (diff) | |
| download | linux-d06c47e3dd07fdf3f07e8fc45f2ce655e9b295c5.tar.xz linux-d06c47e3dd07fdf3f07e8fc45f2ce655e9b295c5.zip | |
ACPI: configfs: Resolve objects on host-directed table loads
If an ACPI SSDT overlay is loaded after built-in tables
have been loaded e.g. via configfs or efivar_ssdt_load()
it is necessary to rewalk the namespace to resolve
references. Without this, relative and absolute paths
like ^PCI0.SBUS or \_SB.PCI0.SBUS are not resolved
correctly.
Make configfs loads use the same method as efivar_ssdt_load().
Signed-off-by: Nikolaus Voss <nikolaus.voss@loewensteinmedical.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/acpi_configfs.c | 6 | ||||
| -rw-r--r-- | drivers/acpi/acpica/tbxfload.c | 11 |
2 files changed, 12 insertions, 5 deletions
diff --git a/drivers/acpi/acpi_configfs.c b/drivers/acpi/acpi_configfs.c index f92033661239..663f0d88f912 100644 --- a/drivers/acpi/acpi_configfs.c +++ b/drivers/acpi/acpi_configfs.c @@ -56,11 +56,7 @@ static ssize_t acpi_table_aml_write(struct config_item *cfg, if (!table->header) return -ENOMEM; - ACPI_INFO(("Host-directed Dynamic ACPI Table Load:")); - ret = acpi_tb_install_and_load_table( - ACPI_PTR_TO_PHYSADDR(table->header), - ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL, FALSE, - &table->index); + ret = acpi_load_table(table->header); if (ret) { kfree(table->header); table->header = NULL; diff --git a/drivers/acpi/acpica/tbxfload.c b/drivers/acpi/acpica/tbxfload.c index 4f30f06a6f78..ef8f8a9f3c9c 100644 --- a/drivers/acpi/acpica/tbxfload.c +++ b/drivers/acpi/acpica/tbxfload.c @@ -297,6 +297,17 @@ acpi_status acpi_load_table(struct acpi_table_header *table) status = acpi_tb_install_and_load_table(ACPI_PTR_TO_PHYSADDR(table), ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL, FALSE, &table_index); + + if (ACPI_SUCCESS(status)) { + /* Complete the initialization/resolution of package objects */ + + status = acpi_ns_walk_namespace(ACPI_TYPE_PACKAGE, + ACPI_ROOT_OBJECT, + ACPI_UINT32_MAX, 0, + acpi_ns_init_one_package, + NULL, NULL, NULL); + } + return_ACPI_STATUS(status); } |