Re: [Xen-devel] [PATCH V2 6/25] tools/libacpi: Add DMA remapping reporting (DMAR) ACPI table structures

2017-08-22 Thread Lan Tianyu 
On 2017年08月22日 20:56, Wei Liu wrote:
> On Wed, Aug 09, 2017 at 04:34:07PM -0400, Lan Tianyu wrote:
>> From: Chao Gao 
>>
>> Add dmar table structure according Chapter 8 "BIOS Considerations" of
>> VTd spec Rev. 2.4.
>>
>> VTd 
>> spec:http://www.intel.com/content/dam/www/public/us/en/documents/product-specifications/vt-directed-io-spec.pdf
>>
>> Signed-off-by: Chao Gao 
>> Signed-off-by: Lan Tianyu 
> 
> I check the spec and the content, they match.
> 

Thanks.

-- 
Best regards
Tianyu Lan

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Re: [Xen-devel] [PATCH V2 6/25] tools/libacpi: Add DMA remapping reporting (DMAR) ACPI table structures

2017-08-22 Thread Wei Liu 
On Wed, Aug 09, 2017 at 04:34:07PM -0400, Lan Tianyu wrote:
> From: Chao Gao 
> 
> Add dmar table structure according Chapter 8 "BIOS Considerations" of
> VTd spec Rev. 2.4.
> 
> VTd 
> spec:http://www.intel.com/content/dam/www/public/us/en/documents/product-specifications/vt-directed-io-spec.pdf
> 
> Signed-off-by: Chao Gao 
> Signed-off-by: Lan Tianyu 

I check the spec and the content, they match.

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[Xen-devel] [PATCH V2 6/25] tools/libacpi: Add DMA remapping reporting (DMAR) ACPI table structures

2017-08-09 Thread Lan Tianyu 
From: Chao Gao 

Add dmar table structure according Chapter 8 "BIOS Considerations" of
VTd spec Rev. 2.4.

VTd 
spec:http://www.intel.com/content/dam/www/public/us/en/documents/product-specifications/vt-directed-io-spec.pdf

Signed-off-by: Chao Gao 
Signed-off-by: Lan Tianyu 
---
 tools/libacpi/acpi2_0.h | 61 +
 1 file changed, 61 insertions(+)

diff --git a/tools/libacpi/acpi2_0.h b/tools/libacpi/acpi2_0.h
index 2619ba3..758a823 100644
--- a/tools/libacpi/acpi2_0.h
+++ b/tools/libacpi/acpi2_0.h
@@ -422,6 +422,65 @@ struct acpi_20_slit {
 };
 
 /*
+ * DMA Remapping Table header definition (DMAR)
+ */
+
+/*
+ * DMAR Flags.
+ */
+#define ACPI_DMAR_INTR_REMAP(1 << 0)
+#define ACPI_DMAR_X2APIC_OPT_OUT(1 << 1)
+
+struct acpi_dmar {
+struct acpi_header header;
+uint8_t host_address_width;
+uint8_t flags;
+uint8_t reserved[10];
+};
+
+/*
+ * Device Scope Types
+ */
+#define ACPI_DMAR_DEVICE_SCOPE_PCI_ENDPOINT 0x01
+#define ACPI_DMAR_DEVICE_SCOPE_PCI_SUB_HIERARACHY   0x01
+#define ACPI_DMAR_DEVICE_SCOPE_IOAPIC   0x03
+#define ACPI_DMAR_DEVICE_SCOPE_HPET 0x04
+#define ACPI_DMAR_DEVICE_SCOPE_ACPI_NAMESPACE_DEVICE0x05
+
+struct dmar_device_scope {
+uint8_t type;
+uint8_t length;
+uint8_t reserved[2];
+uint8_t enumeration_id;
+uint8_t bus;
+uint16_t path[0];
+};
+
+/*
+ * DMA Remapping Hardware Unit Types
+ */
+#define ACPI_DMAR_TYPE_HARDWARE_UNIT0x00
+#define ACPI_DMAR_TYPE_RESERVED_MEMORY  0x01
+#define ACPI_DMAR_TYPE_ATSR 0x02
+#define ACPI_DMAR_TYPE_HARDWARE_AFFINITY0x03
+#define ACPI_DMAR_TYPE_ANDD 0x04
+
+/*
+ * DMA Remapping Hardware Unit Flags. All other bits are reserved and must be 
0.
+ */
+#define ACPI_DMAR_INCLUDE_PCI_ALL   (1 << 0)
+
+struct acpi_dmar_hardware_unit {
+uint16_t type;
+uint16_t length;
+uint8_t flags;
+uint8_t reserved;
+uint16_t pci_segment;
+uint64_t base_address;
+struct dmar_device_scope scope[0];
+};
+
+/*
  * Table Signatures.
  */
 #define ACPI_2_0_RSDP_SIGNATURE ASCII64('R','S','D',' ','P','T','R',' ')
@@ -435,6 +494,7 @@ struct acpi_20_slit {
 #define ACPI_2_0_WAET_SIGNATURE ASCII32('W','A','E','T')
 #define ACPI_2_0_SRAT_SIGNATURE ASCII32('S','R','A','T')
 #define ACPI_2_0_SLIT_SIGNATURE ASCII32('S','L','I','T')
+#define ACPI_2_0_DMAR_SIGNATURE ASCII32('D','M','A','R')
 
 /*
  * Table revision numbers.
@@ -449,6 +509,7 @@ struct acpi_20_slit {
 #define ACPI_1_0_FADT_REVISION 0x01
 #define ACPI_2_0_SRAT_REVISION 0x01
 #define ACPI_2_0_SLIT_REVISION 0x01
+#define ACPI_2_0_DMAR_REVISION 0x01
 
 #pragma pack ()
 
-- 
1.8.3.1


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