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hv: ptdev: add source_id for ptdev to identify source

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Then use the source id to lookup the ptdev remapping entry.
For msi interrupt ptdev: use bdf and vector_index to identify the id;
For intx interrupt ptdev: use pin and pin source to identify the id.

Signed-off-by: Li, Fei1 <fei1.li@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
This commit is contained in:
Li, Fei1
2018-08-20 10:47:35 +08:00
committed by wenlingz
parent 6367650a70
commit e8c0763de6
6 changed files with 190 additions and 323 deletions
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48
hypervisor/include/common/ptdev.h
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@@ -9,17 +9,33 @@
#define ACTIVE_FLAG 0x1U /* any non zero should be okay */
enum ptdev_intr_type {
PTDEV_INTR_MSI,
PTDEV_INTR_INTX,
PTDEV_INTR_INV,
};
#define PTDEV_INTR_MSI (1U << 0U)
#define PTDEV_INTR_INTX (1U << 1U)
enum ptdev_vpin_source {
PTDEV_VPIN_IOAPIC,
PTDEV_VPIN_PIC,
};
#define DEFINE_MSI_SID(name, a, b) \
union source_id name = {.msi_id = {.bdf = (a), .entry_nr = (b)}}
#define DEFINE_IOAPIC_SID(name, a, b) \
union source_id name = {.intx_id = {.pin = (a), .src = (b)}}
union source_id {
uint32_t value;
struct {
uint16_t bdf;
uint16_t entry_nr;
} msi_id;
struct {
uint8_t pin;
uint8_t src;
uint16_t reserved;
} intx_id;
};
/* entry per guest virt vector */
struct ptdev_msi_info {
uint32_t vmsi_addr; /* virt msi_addr */
@@ -33,37 +49,25 @@ struct ptdev_msi_info {
uint32_t phys_vector;
};
/* entry per guest vioapic pin */
struct ptdev_intx_info {
enum ptdev_vpin_source vpin_src;
uint8_t virt_pin;
uint8_t phys_pin;
};
/* entry per each allocated irq/vector
* it represents a pass-thru device's remapping data entry which collecting
* information related with its vm and msi/intx mapping & interaction nodes
* with interrupt handler and softirq.
*/
struct ptdev_remapping_info {
uint32_t intr_type;
union source_id phys_sid;
union source_id virt_sid;
struct vm *vm;
uint16_t virt_bdf; /* PCI bus:slot.func*/
uint16_t phys_bdf; /* PCI bus:slot.func*/
uint32_t active; /* 1=active, 0=inactive and to free*/
enum ptdev_intr_type type;
uint32_t allocated_pirq;
struct list_head softirq_node;
struct list_head entry_node;
union {
struct ptdev_msi_info msi;
struct ptdev_intx_info intx;
} ptdev_intr_info;
struct ptdev_msi_info msi;
};
extern struct list_head ptdev_list;
extern spinlock_t ptdev_lock;
extern struct ptdev_remapping_info invalid_entry;
void ptdev_softirq(__unused uint16_t cpu_id);
void ptdev_init(void);
@@ -71,7 +75,7 @@ void ptdev_release_all_entries(struct vm *vm);
struct ptdev_remapping_info *ptdev_dequeue_softirq(void);
struct ptdev_remapping_info *alloc_entry(struct vm *vm,
enum ptdev_intr_type type);
uint32_t intr_type);
void release_entry(struct ptdev_remapping_info *entry);
void ptdev_activate_entry(
struct ptdev_remapping_info *entry,