diff options
| author | Bob Moore <robert.moore@intel.com> | 2006-02-17 00:00:00 -0500 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2006-04-01 01:23:23 -0500 |
| commit | ea936b78f46cbe089a4ac363e1682dee7d427096 (patch) | |
| tree | c444b65c3d02b05934497caefcdcbbe675a00bdf /drivers/acpi/resources/rslist.c | |
| parent | 52fc0b026e99b5d5d585095148d997d5634bbc25 (diff) | |
ACPI: ACPICA 20060217
Implemented a change to the IndexField support to match
the behavior of the Microsoft AML interpreter. The value
written to the Index register is now a byte offset,
no longer an index based upon the width of the Data
register. This should fix IndexField problems seen on
some machines where the Data register is not exactly one
byte wide. The ACPI specification will be clarified on
this point.
Fixed a problem where several resource descriptor
types could overrun the internal descriptor buffer due
to size miscalculation: VendorShort, VendorLong, and
Interrupt. This was noticed on IA64 machines, but could
affect all platforms.
Fixed a problem where individual resource descriptors were
misaligned within the internal buffer, causing alignment
faults on IA64 platforms.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/resources/rslist.c')
| -rw-r--r-- | drivers/acpi/resources/rslist.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/acpi/resources/rslist.c b/drivers/acpi/resources/rslist.c index c27dca64d5d0..6f2d8de39523 100644 --- a/drivers/acpi/resources/rslist.c +++ b/drivers/acpi/resources/rslist.c @@ -77,6 +77,15 @@ acpi_rs_convert_aml_to_resources(u8 * aml, u32 aml_length, u8 * output_buffer) /* Loop until end-of-buffer or an end_tag is found */ while (aml < end_aml) { + /* + * Check that the input buffer and all subsequent pointers into it + * are aligned on a native word boundary. Most important on IA64 + */ + if (ACPI_IS_MISALIGNED(resource)) { + ACPI_WARNING((AE_INFO, + "Misaligned resource pointer %p", + resource)); + } /* Validate the Resource Type and Resource Length */ @@ -101,6 +110,12 @@ acpi_rs_convert_aml_to_resources(u8 * aml, u32 aml_length, u8 * output_buffer) return_ACPI_STATUS(status); } + ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, + "Type %.2X, Aml %.2X internal %.2X\n", + acpi_ut_get_resource_type(aml), + acpi_ut_get_descriptor_length(aml), + resource->length)); + /* Normal exit on completion of an end_tag resource descriptor */ if (acpi_ut_get_resource_type(aml) == |