Hi, Len
The linuxized patches for ACPICA release 20110527 attached.
[PATCH 1/3] ACPICA: Load operator: re-instate most restrictions on incoming table signature
[PATCH 2/3] ACPICA: Add missing _TDL to list of predefined names
[PATCH 3/3] ACPICA: Update to version 20110527
Lin Ming
>From c8f1e6fd30c0c274a4c251f86ad30e4e509e4319 Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@xxxxxxxxx>
Date: Tue, 14 Jun 2011 10:42:53 +0800
Subject: [PATCH 1/3] ACPICA: Load operator: re-instate most restrictions on incoming table signature
Now, only allow "SSDT" "OEM", and a null signature.
Signed-off-by: Bob Moore <robert.moore@xxxxxxxxx>
Signed-off-by: Lin Ming <ming.m.lin@xxxxxxxxx>
---
drivers/acpi/acpica/tbinstal.c | 27 ++++++++++++++++++++++-----
1 files changed, 22 insertions(+), 5 deletions(-)
diff --git a/drivers/acpi/acpica/tbinstal.c b/drivers/acpi/acpica/tbinstal.c
index 48db094..62365f6 100644
--- a/drivers/acpi/acpica/tbinstal.c
+++ b/drivers/acpi/acpica/tbinstal.c
@@ -126,12 +126,29 @@ acpi_tb_add_table(struct acpi_table_desc *table_desc, u32 *table_index)
}
/*
- * Originally, we checked the table signature for "SSDT" or "PSDT" here.
- * Next, we added support for OEMx tables, signature "OEM".
- * Valid tables were encountered with a null signature, so we've just
- * given up on validating the signature, since it seems to be a waste
- * of code. The original code was removed (05/2008).
+ * Validate the incoming table signature.
+ *
+ * 1) Originally, we checked the table signature for "SSDT" or "PSDT".
+ * 2) We added support for OEMx tables, signature "OEM".
+ * 3) Valid tables were encountered with a null signature, so we just
+ * gave up on validating the signature, (05/2008).
+ * 4) We encountered non-AML tables such as the MADT, which caused
+ * interpreter errors and kernel faults. So now, we once again allow
+ * only "SSDT", "OEMx", and now, also a null signature. (05/2011).
*/
+ if ((table_desc->pointer->signature[0] != 0x00) &&
+ (!ACPI_COMPARE_NAME(table_desc->pointer->signature, ACPI_SIG_SSDT))
+ && (ACPI_STRNCMP(table_desc->pointer->signature, "OEM", 3))) {
+ ACPI_ERROR((AE_INFO,
+ "Table has invalid signature [%4.4s] (0x%8.8X), must be SSDT or OEMx",
+ acpi_ut_valid_acpi_name(*(u32 *)table_desc->
+ pointer->
+ signature) ? table_desc->
+ pointer->signature : "????",
+ *(u32 *)table_desc->pointer->signature));
+
+ return_ACPI_STATUS(AE_BAD_SIGNATURE);
+ }
(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
>From f683079b2774c7aeb3725a5c2e6aa7a52198cb81 Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@xxxxxxxxx>
Date: Tue, 14 Jun 2011 10:44:51 +0800
Subject: [PATCH 2/3] ACPICA: Add missing _TDL to list of predefined names
Affects both iASL and core ACPICA.
Signed-off-by: Bob Moore <robert.moore@xxxxxxxxx>
Signed-off-by: Lin Ming <ming.m.lin@xxxxxxxxx>
---
drivers/acpi/acpica/acpredef.h | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/drivers/acpi/acpica/acpredef.h b/drivers/acpi/acpica/acpredef.h
index 94e73c9..c445cca 100644
--- a/drivers/acpi/acpica/acpredef.h
+++ b/drivers/acpi/acpica/acpredef.h
@@ -468,6 +468,7 @@ static const union acpi_predefined_info predefined_names[] =
{{"_SWS", 0, ACPI_RTYPE_INTEGER}},
{{"_TC1", 0, ACPI_RTYPE_INTEGER}},
{{"_TC2", 0, ACPI_RTYPE_INTEGER}},
+ {{"_TDL", 0, ACPI_RTYPE_INTEGER}},
{{"_TIP", 1, ACPI_RTYPE_INTEGER}},
{{"_TIV", 1, ACPI_RTYPE_INTEGER}},
{{"_TMP", 0, ACPI_RTYPE_INTEGER}},
>From 0e91fd3fed4ed134f6f68695596b7b4d1d0f47e3 Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@xxxxxxxxx>
Date: Tue, 14 Jun 2011 10:45:57 +0800
Subject: [PATCH 3/3] ACPICA: Update to version 20110527
Version 20110527.
Signed-off-by: Bob Moore <robert.moore@xxxxxxxxx>
Signed-off-by: Lin Ming <ming.m.lin@xxxxxxxxx>
---
include/acpi/acpixf.h | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index 2ed0a84..06853f7 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -47,7 +47,7 @@
/* Current ACPICA subsystem version in YYYYMMDD format */
-#define ACPI_CA_VERSION 0x20110413
+#define ACPI_CA_VERSION 0x20110527
#include "actypes.h"
#include "actbl.h"
