Modify the GTDT table parsing logic to prevent reading past the ACPI
buffer lengths provided and to make it consistent with other table
parsers. This includes converting the do-while loop in ParseAcpiGtdt()
into a while loop.
Remove a check which ensures that the entire Platform GT Block
Structure buffer has been parsed. The ACPI specification does not ban
from defining buffers which are larger than the size indicated by the
count and sizes of substructures which constitute it.
Change the data type of the Length parameter to the DumpGTBlock()
function to reflect the width of the respective ACPI structure's
field.
References:
- ACPI 6.3, January 2019, Table 5-124
Signed-off-by: Krzysztof Koch <krzysztof.koch@arm.com>
Reviewed-by: Alexei Fedorov <Alexei.Fedorov@arm.com>
Reviewed-by: Zhichao Gao <zhichao.gao@inte.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Remove redundant forward function declarations by repositioning
blocks of code. This way the code structure is consistent across
ACPI table parsers and the code becomes more concise.
Replace multple use of literal values for GT Block Timer Frame
count/number validation with a macro definition.
Signed-off-by: Krzysztof Koch <krzysztof.koch@arm.com>
Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Reviewed-by: Alexei Fedorov <Alexei.Fedorov@arm.com>
Reviewed-by: Zhichao Gao <zhichao.gao@intel.com>
The ACPI 6.3 specification introduces support to describe
the ARMv8.1 virtual EL2 timers. This patch updates the GTDT parser
of acpiview to decode the EL2 virtual timer fields.
Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Reviewed-by: Alexei Fedorov <Alexei.Fedorov@arm.com>
Reviewed-by: Zhichao Gao <zhichao.gao@intel.com>
The ACPI 6.2 specification mandates that the Generic Timer (GT) Block
Timer Structures must have a frame number in the range 0-7.
Update the GTDT parser to warn if this condition is violated.
Signed-off-by: Krzysztof Koch <krzysztof.koch@arm.com>
Reviewed-by: Zhichao Gao <zhichao.gao@intel.com>
1. Separate variable definition and initialization.
2. Make the variable naming following Edk2 rule.
V2: Remove the updates of guard macros in header files.
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Evan Lloyd <evan.lloyd@arm.com>
Cc: Jaben Carsey <jaben.carsey@intel.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
This program is provided to allow examination of ACPI table contents
from the UEFI Shell. This can help with investigations, especially at
that stage where the tables are not enabling an OS to boot.
The program is not exhaustive, and only encapsulates detailed knowledge
of a limited number of table types.
Default behaviour is to display the content of all tables installed.
'Known' table types will be parsed and displayed with descriptions and
field values. Where appropriate a degree of consistency checking is
done and errors may be reported in the output.
Other table types will be displayed as an array of Hexadecimal bytes.
To facilitate debugging, the -s and -d options can be used to generate a
binary file image of a table that can be copied elsewhere for
investigation using tools such as those provided by acpica.org. This is
especially relevant for AML type tables like DSDT and SSDT.
The inspiration for this is the existing smbiosview Debug1 Shell
command.
Many tables are not explicitly handled, in part because no examples are
available for our testing.
The program is designed to be extended to new tables with minimal
effort, and contributions are invited.
Change-Id: Ifa23dc80ab8ab042c56e88424847e796a8122a7c
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Sami Mujawar <sami.mujawar@arm.com>
Signed-off-by: Evan Lloyd <evan.lloyd@arm.com>
Signed-off-by: Sami Mujawar <sami.mujawar@arm.com>
Signed-off-by: Evan Lloyd <evan.lloyd@arm.com>
Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Krzysztof Koch
Pierre Gondois
Michael D Kinney
AlexeiFedorov
Dandan Bi
Ruiyu Ni