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ACPICA: Tables: Change table duplication check to be related to acpi_gbl_verify_table_checksum

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ACPICA commit 3d837b5d4b1033942b4d91c7d3801a09c3157918

acpi_gbl_verify_table_checksum is used to avoid validating (mapping) an entire
table in OS boot stage. 2nd "Reload" check in acpi_tb_install_standard_table()
is prepared for the same purpose. So this patch combines them together
using a renamed acpi_gbl_enable_table_validation flag. Lv Zheng.

Link: https://github.com/acpica/acpica/commit/3d837b5d
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Lv Zheng 2017-07-10 15:23:45 +08:00 committed by Rafael J. Wysocki
parent 04ba15aa55
commit 023e2ee16c
6 changed files with 20 additions and 14 deletions
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4
drivers/acpi/acpica/tbdata.c
View File

@ -338,7 +338,7 @@ void acpi_tb_invalidate_table(struct acpi_table_desc *table_desc)
acpi_status acpi_tb_validate_temp_table(struct acpi_table_desc *table_desc)
{
if (!table_desc->pointer && !acpi_gbl_verify_table_checksum) {
if (!table_desc->pointer && !acpi_gbl_enable_table_validation) {
/*
* Only validates the header of the table.
* Note that Length contains the size of the mapping after invoking
@ -394,7 +394,7 @@ acpi_tb_verify_temp_table(struct acpi_table_desc *table_desc, char *signature)
/* Verify the checksum */
if (acpi_gbl_verify_table_checksum) {
if (acpi_gbl_enable_table_validation) {
status =
acpi_tb_verify_checksum(table_desc->pointer,
table_desc->length);

2
drivers/acpi/acpica/tbinstal.c
View File

@ -221,7 +221,7 @@ acpi_tb_install_standard_table(acpi_physical_address address,
(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
if (reload) {
if (acpi_gbl_enable_table_validation) {
/* Check if table is already registered */

8
drivers/acpi/acpica/tbxface.c
View File

@ -194,6 +194,14 @@ acpi_status ACPI_INIT_FUNCTION acpi_reallocate_root_table(void)
}
}
if (!acpi_gbl_enable_table_validation) {
/*
* Now it's safe to do full table validation. We can do deferred
* table initilization here once the flag is set.
*/
acpi_gbl_enable_table_validation = TRUE;
}
acpi_gbl_root_table_list.flags |= ACPI_ROOT_ALLOW_RESIZE;
status = acpi_tb_resize_root_table_list();

3
drivers/acpi/bus.c
View File

@ -995,9 +995,6 @@ void __init acpi_early_init(void)
printk(KERN_INFO PREFIX "Core revision %08x\n", ACPI_CA_VERSION);
/* It's safe to verify table checksums during late stage */
acpi_gbl_verify_table_checksum = TRUE;
/* enable workarounds, unless strict ACPI spec. compliance */
if (!acpi_strict)
acpi_gbl_enable_interpreter_slack = TRUE;

4
drivers/acpi/tables.c
View File

@ -740,10 +740,10 @@ int __init acpi_table_init(void)
if (acpi_verify_table_checksum) {
pr_info("Early table checksum verification enabled\n");
acpi_gbl_verify_table_checksum = TRUE;
acpi_gbl_enable_table_validation = TRUE;
} else {
pr_info("Early table checksum verification disabled\n");
acpi_gbl_verify_table_checksum = FALSE;
acpi_gbl_enable_table_validation = FALSE;
}
status = acpi_initialize_tables(initial_tables, ACPI_MAX_TABLES, 0);

13
include/acpi/acpixf.h
View File

@ -160,13 +160,14 @@ ACPI_INIT_GLOBAL(u8, acpi_gbl_create_osi_method, TRUE);
ACPI_INIT_GLOBAL(u8, acpi_gbl_use_default_register_widths, TRUE);
/*
* Whether or not to verify the table checksum before installation. Set
* this to TRUE to verify the table checksum before install it to the table
* manager. Note that enabling this option causes errors to happen in some
* OSPMs during early initialization stages. Default behavior is to do such
* verification.
* Whether or not to validate (map) an entire table to verify
* checksum/duplication in early stage before install. Set this to TRUE to
* allow early table validation before install it to the table manager.
* Note that enabling this option causes errors to happen in some OSPMs
* during early initialization stages. Default behavior is to allow such
* validation.
*/
ACPI_INIT_GLOBAL(u8, acpi_gbl_verify_table_checksum, TRUE);
ACPI_INIT_GLOBAL(u8, acpi_gbl_enable_table_validation, TRUE);
/*
* Optionally enable output from the AML Debug Object.