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hv: Enumerate IOAPIC info from DMAR table

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IOAPIC info from DMAR table is needed to match the IOAPIC info from
MADT. This patch adds support to get id and bus, devfn for IOAPIC
from DMAR. IOAPIC info for SBL platform is hardcoded in the header
file.

Tracked-On: #2426
Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Reviewed-by: Binbin Wu <binbin.wu@intel.com>
This commit is contained in:
Grandhi, Sainath
2019-01-26 00:04:48 -08:00
committed by Eddie Dong
parent 4ff9f5dfb2
commit cb46937bf5
4 changed files with 26 additions and 24 deletions
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13
hypervisor/include/arch/x86/vtd.h
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@@ -35,6 +35,17 @@
#define DMAR_ICS_REG 0x9cU /* Invalidation complete status register */
#define DMAR_IRTA_REG 0xb8U /* Interrupt remapping table addr register */
/* Values for entry_type in ACPI_DMAR_DEVICE_SCOPE - device types */
enum acpi_dmar_scope_type {
ACPI_DMAR_SCOPE_TYPE_NOT_USED = 0,
ACPI_DMAR_SCOPE_TYPE_ENDPOINT = 1,
ACPI_DMAR_SCOPE_TYPE_BRIDGE = 2,
ACPI_DMAR_SCOPE_TYPE_IOAPIC = 3,
ACPI_DMAR_SCOPE_TYPE_HPET = 4,
ACPI_DMAR_SCOPE_TYPE_NAMESPACE = 5,
ACPI_DMAR_SCOPE_TYPE_RESERVED = 6 /* 6 and greater are reserved */
};
static inline uint8_t dmar_ver_major(uint64_t version)
{
return (((uint8_t)version & 0xf0U) >> 4U);
@@ -442,6 +453,8 @@ static inline uint16_t dma_frcd_up_sid(uint64_t up_sid)
#define DEVFUN(dev, fun) (((dev & 0x1FU) << 3U) | ((fun & 0x7U)))
struct dmar_dev_scope {
enum acpi_dmar_scope_type type;
uint8_t id;
uint8_t bus;
uint8_t devfun;
};