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authorNikolaus Voss <nikolaus.voss@loewensteinmedical.de>2019-06-12 10:36:06 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2019-06-14 11:39:42 +0200
commitd06c47e3dd07fdf3f07e8fc45f2ce655e9b295c5 (patch)
tree46b9b9e156bce8d5c2f5aec761c9a0539afa468a /drivers/acpi
parentc78fea61f0c1f8568fbbb36ac3d1e1c85a903ae4 (diff)
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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.c6
-rw-r--r--drivers/acpi/acpica/tbxfload.c11
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);
}