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https://github.com/projectacrn/acrn-hypervisor.git
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board_inspector: add GPIO and generic serial connection parsers
GPIO and generic serial connection resources in ACPI resource descriptors usually encode resource sources which are important in detecting cross-device dependencies. This patch adds parsers for GPIO and generic serial connection descriptors. Tracked-On: #6287 Signed-off-by: Junjie Mao <junjie.mao@intel.com>
This commit is contained in:
Junjie Mao
wenlingz
parent
52c3ed7e09
commit
a2e9a05737
@ -259,7 +259,7 @@ def LargeResourceItemQWordAddressSpace_factory(_len=43):
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] + ([
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('reserved2', ctypes.c_uint8)
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] if (_len > 43) else []) + ([
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('source', ctypes.c_char * (_len - 44))
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('resource_source_opt', ctypes.c_char * (_len - 44))
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] if (_len > 44) else [])
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_formats = {
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'_TYP': unpack.format_table("{}", resource_type),
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@ -267,6 +267,11 @@ def LargeResourceItemQWordAddressSpace_factory(_len=43):
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'_MIF': unpack.format_table("{}", min_address_fixed),
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'_MAF': unpack.format_table("{}", max_address_fixed),
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}
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@property
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def resource_source(self):
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return getattr(self, "resource_source_opt", None)
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return LargeResourceItemQWordAddressSpace
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# 6.4.3.5.2 DWord Address Space Descriptor
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@ -290,7 +295,7 @@ def LargeResourceItemDWordAddressSpace_factory(_len=23):
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] + ([
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('reserved2', ctypes.c_uint8)
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] if (_len > 23) else []) + ([
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('source', ctypes.c_char * (_len - 24))
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('resource_source_opt', ctypes.c_char * (_len - 24))
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] if (_len > 24) else [])
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_formats = {
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'_TYP': unpack.format_table("{}", resource_type),
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@ -298,6 +303,11 @@ def LargeResourceItemDWordAddressSpace_factory(_len=23):
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'_MIF': unpack.format_table("{}", min_address_fixed),
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'_MAF': unpack.format_table("{}", max_address_fixed),
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}
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@property
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def resource_source(self):
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return getattr(self, "resource_source_opt", None)
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return LargeResourceItemDWordAddressSpace
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# 6.4.3.5.3 Word Address Space Descriptor
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@ -321,7 +331,7 @@ def LargeResourceItemWordAddressSpace_factory(_len=13):
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] + ([
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('reserved2', ctypes.c_uint8)
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] if (_len > 13) else []) + ([
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('source', ctypes.c_char * (_len - 14))
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('resource_source_opt', ctypes.c_char * (_len - 14))
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] if (_len > 14) else [])
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_formats = {
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'_TYP': unpack.format_table("{}", resource_type),
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@ -329,6 +339,11 @@ def LargeResourceItemWordAddressSpace_factory(_len=13):
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'_MIF': unpack.format_table("{}", min_address_fixed),
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'_MAF': unpack.format_table("{}", max_address_fixed),
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}
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@property
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def resource_source(self):
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return getattr(self, "resource_source_opt", None)
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return LargeResourceItemWordAddressSpace
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# 6.4.3.5.4 Extended Address Space Descriptor
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@ -361,31 +376,39 @@ class LargeResourceItemExtendedAddressSpace(cdata.Struct):
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# 6.4.3.6 Extended Interrupt Descriptor
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class LargeResourceItemExtendedInterruptHeader(cdata.Struct):
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_pack_ = 1
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_fields_ = LargeResourceDataTag._fields_ + [
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('flags', ctypes.c_uint8),
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('_LEN', ctypes.c_uint8),
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]
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def LargeResourceItemExtendedInterrupt_factory(_len, _it_len):
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class LargeResourceItemExtendedInterrupt(cdata.Struct):
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def LargeResourceItemExtendedInterrupt_factory(_addr):
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class LargeResourceItemExtendedInterruptLayout(cdata.Struct):
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_pack_ = 1
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_fields_ = LargeResourceDataTag._fields_ + [
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('_CP', ctypes.c_uint8, 1),
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('_HE', ctypes.c_uint8, 1),
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('_LL', ctypes.c_uint8, 1),
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('_SHR', ctypes.c_uint8, 1),
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('_WKC', ctypes.c_uint8, 1),
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('reserved1', ctypes.c_uint8, 3),
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('flags', ctypes.c_uint8),
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('_LEN', ctypes.c_uint8),
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('_INT', ctypes.c_uint32 * _it_len),
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] + ([
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('reserved2', ctypes.c_uint8),
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] if (_len > 2 + _it_len * 4) else []) + ([
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('source', ctypes.c_char * (_len - _it_len * 4 - 3))
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] if (_len > 2 + _it_len * 4 + 1) else [])
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return LargeResourceItemExtendedInterrupt
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]
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def aux(layout):
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class LargeResourceItemExtendedInterrupt(cdata.Struct):
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_pack_ = 1
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_fields_ = LargeResourceDataTag._fields_ + [
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('_CP', ctypes.c_uint8, 1),
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('_HE', ctypes.c_uint8, 1),
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('_LL', ctypes.c_uint8, 1),
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('_SHR', ctypes.c_uint8, 1),
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('_WKC', ctypes.c_uint8, 1),
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('reserved1', ctypes.c_uint8, 3),
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('_LEN', ctypes.c_uint8),
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('_INT', ctypes.c_uint32 * layout._LEN),
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] + ([
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('reserved2', ctypes.c_uint8),
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] if (layout.length > 2 + layout._LEN * 4) else []) + ([
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('resource_source_opt', ctypes.c_char * (layout.length - layout._LEN * 4 - 3))
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] if (layout.length > 2 + layout._LEN * 4 + 1) else [])
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@property
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def resource_source(self):
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return getattr(self, "resource_source_opt", None)
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return LargeResourceItemExtendedInterrupt
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return aux(LargeResourceItemExtendedInterruptLayout.from_address(_addr))
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# 6.4.3.7 Generic Register Descriptor
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@ -399,30 +422,107 @@ class LargeResourceItemGenericRegister(cdata.Struct):
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('_ADR', ctypes.c_uint64),
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]
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# 6.4.3.8.1 GPIO Connection Descriptor (TODO)
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# 6.4.3.8.1 GPIO Connection Descriptor
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def LargeResourceItemGPIOConnection_factory(_len):
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class LargeResourceItemGPIOConnection(cdata.Struct):
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def LargeResourceItemGPIOConnection_factory(_addr):
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class LargeResourceItemGPIOConnectionLayout(cdata.Struct):
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_pack_ = 1
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_fields_ = LargeResourceDataTag._fields_ + [
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('_REV', ctypes.c_uint8),
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('_TYP', ctypes.c_uint8),
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('data', ctypes.c_uint8 * (_len - 2)),
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('revision_id', ctypes.c_uint8),
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('connection_type', ctypes.c_uint8),
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# Byte 5 to 13 (both inclusive) are not involved in detecting the layout of the descriptor
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('data1', ctypes.c_uint8 * 9),
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('pin_table_offset', ctypes.c_uint16),
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('data2', ctypes.c_uint8),
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('resource_source_name_offset', ctypes.c_uint16),
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('vendor_data_offset', ctypes.c_uint16),
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('vendor_data_length', ctypes.c_uint16),
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]
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return LargeResourceItemGPIOConnection
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# 6.4.3.8.2 GenericSerialBus Connection Descriptors (TODO)
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def aux(layout):
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if layout.connection_type == 0: # Interrupt connection
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interrupt_and_io_flags_fields = [
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('_MOD', ctypes.c_uint16, 1),
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('_POL', ctypes.c_uint16, 2),
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('_SHR', ctypes.c_uint16, 1),
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('_WKC', ctypes.c_uint16, 1),
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('reserved2', ctypes.c_uint16, 11),
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]
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elif layout.connection_type == 1: # I/O connection
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interrupt_and_io_flags_fields = [
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('_IOR', ctypes.c_uint16, 1),
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('reserved2_1', ctypes.c_uint16, 2),
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('_SHR', ctypes.c_uint16, 1),
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('reserved2_2', ctypes.c_uint16, 12),
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]
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else:
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interrupt_and_io_flags_fields = [('interrupt_and_io_flags', ctypes.c_uint16)]
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def LargeResourceItemGenericSerialBusConnection_factory(_len):
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class LargeResourceItemGenericSerialBusConnection(cdata.Struct):
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pre_pin_table_length = layout.pin_table_offset - 23
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pin_count = (layout.resource_source_name_offset - layout.pin_table_offset) // 2
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resource_source_name_length = layout.vendor_data_offset - layout.resource_source_name_offset
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class LargeResourceItemGPIOConnection(cdata.Struct):
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_pack_ = 1
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_fields_ = LargeResourceDataTag._fields_ + [
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('revision_id', ctypes.c_uint8),
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('connection_type', ctypes.c_uint8),
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('consumer_producer', ctypes.c_uint16, 1),
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('reserved1', ctypes.c_uint16, 15),
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] + interrupt_and_io_flags_fields + [
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('_PPI', ctypes.c_uint8),
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('_DRS', ctypes.c_uint16),
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('_DBT', ctypes.c_uint16),
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('pin_table_offset', ctypes.c_uint16),
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('resource_source_index', ctypes.c_uint8),
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('resource_source_name_offset', ctypes.c_uint16),
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('vendor_data_offset', ctypes.c_uint16),
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('vendor_data_length', ctypes.c_uint16),
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] + ([
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('reserved3', ctypes.c_uint8 * pre_pin_table_length),
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] if pre_pin_table_length > 0 else []) + [
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('pin_numbers', ctypes.c_uint16 * pin_count),
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('resource_source', ctypes.c_char * resource_source_name_length)
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] + ([
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('_VEN', ctypes.c_uint8 * layout.vendor_data_length)
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] if layout.vendor_data_length > 0 else [])
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return LargeResourceItemGPIOConnection
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return aux(LargeResourceItemGPIOConnectionLayout.from_address(_addr))
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# 6.4.3.8.2 GenericSerialBus Connection Descriptors
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def LargeResourceItemGenericSerialBusConnection_factory(_addr):
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class LargeResourceItemGenericSerialBusConnectionLayout(cdata.Struct):
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_pack_ = 1
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_fields_ = LargeResourceDataTag._fields_ + [
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('_REV', ctypes.c_uint8),
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('_RSI', ctypes.c_uint8),
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('_TYP', ctypes.c_uint8),
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('data', ctypes.c_uint8 * (_len - 3)),
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# Byte 3 to 9 (both inclusive) are not involved in detecting the layout of the descriptor
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('data', ctypes.c_uint8 * 7),
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('type_data_length', ctypes.c_uint16),
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]
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return LargeResourceItemGenericSerialBusConnection
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def aux(layout):
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class LargeResourceItemGenericSerialBusConnection(cdata.Struct):
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_pack_ = 1
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_fields_ = LargeResourceDataTag._fields_ + [
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('revision_id', ctypes.c_uint8),
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('resource_source_index', ctypes.c_uint8),
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('serial_bus_type', ctypes.c_uint8),
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('_SLV', ctypes.c_uint8, 1),
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('consumer_producer', ctypes.c_uint8, 1),
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('_SHR', ctypes.c_uint8, 1),
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('reserved', ctypes.c_uint8, 5),
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('type_specific_flags', ctypes.c_uint16),
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('type_specific_revision_id', ctypes.c_uint8),
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('type_data_length', ctypes.c_uint16),
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('type_specific_data', ctypes.c_uint8 * layout.type_data_length),
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('resource_source', ctypes.c_char * (layout.length - 9 - layout.type_data_length)),
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]
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return LargeResourceItemGenericSerialBusConnection
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return aux(LargeResourceItemGenericSerialBusConnectionLayout.from_address(_addr))
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# 6.4.3.9 Pin Function Descriptor
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@ -573,18 +673,17 @@ def rdt_item_list(addr, length):
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elif tag.name == LARGE_RESOURCE_ITEM_WORD_ADDRESS_SPACE:
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cls = LargeResourceItemWordAddressSpace_factory(tag.length)
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elif tag.name == LARGE_RESOURCE_ITEM_EXTENDED_INTERRUPT:
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hdr = LargeResourceItemExtendedInterruptHeader.from_address(addr)
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cls = LargeResourceItemExtendedInterrupt_factory(tag.length, hdr._LEN)
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cls = LargeResourceItemExtendedInterrupt_factory(addr)
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elif tag.name == LARGE_RESOURCE_ITEM_QWORD_ADDRESS_SPACE:
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cls = LargeResourceItemQWordAddressSpace_factory(tag.length)
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elif tag.name == LARGE_RESOURCE_ITEM_EXTENDED_ADDRESS_SPACE:
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cls = LargeResourceItemExtendedAddressSpace
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elif tag.name == LARGE_RESOURCE_ITEM_GPIO_CONNECTION:
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cls = LargeResourceItemGPIOConnection_factory(tag.length)
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cls = LargeResourceItemGPIOConnection_factory(addr)
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elif tag.name == LARGE_RESOURCE_ITEM_PIN_FUNCTION:
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cls = LargeResourceItemPinFunction_factory(tag.length)
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elif tag.name == LARGE_RESOURCE_ITEM_GENERIC_SERIAL_BUS_CONNECTION:
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cls = LargeResourceItemGenericSerialBusConnection_factory(tag.length)
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cls = LargeResourceItemGenericSerialBusConnection_factory(addr)
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elif tag.name == LARGE_RESOURCE_ITEM_PIN_CONFIGURATION:
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cls = LargeResourceItemPinConfiguration_factory(tag.length)
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elif tag.name == LARGE_RESOURCE_ITEM_PIN_GROUP:
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