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hv: vapic: add mcfg table support

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Add MCFG table support to allow guest access PCIe external CFG space by ECAM

Tracked-On: #4623
Signed-off-by: Li Fei1 <fei1.li@intel.com>
This commit is contained in:
Li Fei1
2020-04-14 15:36:26 +08:00
committed by wenlingz
parent 4eb3f5a0c7
commit 1dccbdbaa2
4 changed files with 53 additions and 9 deletions
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13
hypervisor/boot/include/acpi.h
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@@ -139,6 +139,19 @@ struct acpi_table_fadt {
uint8_t unused3[128]; /* ACRN doesn't use these fields */
} __packed;
struct acpi_table_mcfg {
struct acpi_table_header header; /* Common ACPI table header */
uint8_t reserved[8];
} __packed;
struct acpi_mcfg_allocation {
uint64_t address; /* Base address, processor-relative */
uint16_t pci_segment; /* PCI segment group number */
uint8_t start_bus_number; /* Starting PCI Bus number */
uint8_t end_bus_number; /* Final PCI Bus number */
uint32_t reserved;
} __packed;
struct acpi_table_madt {
/* Common ACPI table header */
struct acpi_table_header header;