diff options
| author | Jason Wang <jasowang@redhat.com> | 2016-12-30 18:09:16 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2017-01-10 05:56:59 +0200 |
| commit | bd2baaccd521a9cfcc56e0a9a69c903fcee56aa4 (patch) | |
| tree | f2d5d67e42589bd55683f554f785d56e8266ae86 /include | |
| parent | 615c4ed20598ab3eda5e071ba7ba2a5bf70be59f (diff) | |
acpi: add ATSR for q35
This patch provides ATSR which was a requirement for software that
wants to enable ATS on endpoint devices behind a Root Port. This is
done simply by setting ALL_PORTS which indicates all PCI-Express Root
Ports support ATS transactions.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/hw/acpi/acpi-defs.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/hw/acpi/acpi-defs.h b/include/hw/acpi/acpi-defs.h index d43ec005cb..4cc3630e61 100644 --- a/include/hw/acpi/acpi-defs.h +++ b/include/hw/acpi/acpi-defs.h @@ -627,8 +627,20 @@ struct AcpiDmarHardwareUnit { } QEMU_PACKED; typedef struct AcpiDmarHardwareUnit AcpiDmarHardwareUnit; +/* Type 2: Root Port ATS Capability Reporting Structure */ +struct AcpiDmarRootPortATS { + uint16_t type; + uint16_t length; + uint8_t flags; + uint8_t reserved; + uint16_t pci_segment; + AcpiDmarDeviceScope scope[0]; +} QEMU_PACKED; +typedef struct AcpiDmarRootPortATS AcpiDmarRootPortATS; + /* Masks for Flags field above */ #define ACPI_DMAR_INCLUDE_PCI_ALL 1 +#define ACPI_DMAR_ATSR_ALL_PORTS 1 /* * Input Output Remapping Table (IORT) |