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lapic: add send_dest_ipi function

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send_dest_ipi is trying to send ipi to dest with a group.

Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
This commit is contained in:
Jason Chen CJ 2018-08-12 20:40:31 +08:00 committed by lijinxia
parent 6e96243b01
commit 49d3446861
2 changed files with 19 additions and 7 deletions
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24
hypervisor/arch/x86/lapic.c
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@ -416,18 +416,18 @@ send_startup_ipi(enum intr_cpu_startup_shorthand cpu_startup_shorthand,
return status; return status;
} }
void send_single_ipi(uint16_t pcpu_id, uint32_t vector) /* dest_mode must be INTR_LAPIC_ICR_PHYSICAL(0x0U) or
* INTR_LAPIC_ICR_LOGICAL(0x1U)
*/
void send_dest_ipi(uint32_t dest, uint32_t vector, uint32_t dest_mode)
{ {
uint32_t dest_lapic_id, hi_32, lo_32; uint32_t hi_32, lo_32;
/* Get the lapic ID of the destination processor. */
dest_lapic_id = per_cpu(lapic_id, pcpu_id);
/* Set the target processor. */ /* Set the target processor. */
hi_32 = dest_lapic_id << 24; hi_32 = dest << 24U;
/* Set the vector ID. */ /* Set the vector ID. */
lo_32 = vector; lo_32 = vector | (dest_mode << 11U);
/* Set the destination field to the target processor. */ /* Set the destination field to the target processor. */
write_lapic_reg32(LAPIC_INT_COMMAND_REGISTER_1, hi_32); write_lapic_reg32(LAPIC_INT_COMMAND_REGISTER_1, hi_32);
@ -438,6 +438,16 @@ void send_single_ipi(uint16_t pcpu_id, uint32_t vector)
wait_for_delivery(); wait_for_delivery();
} }
void send_single_ipi(uint16_t pcpu_id, uint32_t vector)
{
uint32_t dest_lapic_id;
/* Get the lapic ID of the destination processor. */
dest_lapic_id = per_cpu(lapic_id, pcpu_id);
return send_dest_ipi(dest_lapic_id, vector, INTR_LAPIC_ICR_PHYSICAL);
}
int send_shorthand_ipi(uint8_t vector, int send_shorthand_ipi(uint8_t vector,
uint8_t shorthand, uint8_t delivery_mode) uint8_t shorthand, uint8_t delivery_mode)
{ {

2
hypervisor/include/arch/x86/lapic.h
View File

@ -141,6 +141,8 @@ uint8_t get_cur_lapic_id(void);
int send_startup_ipi(enum intr_cpu_startup_shorthand cpu_startup_shorthand, int send_startup_ipi(enum intr_cpu_startup_shorthand cpu_startup_shorthand,
uint16_t dest_pcpu_id, uint16_t dest_pcpu_id,
uint64_t cpu_startup_start_address); uint64_t cpu_startup_start_address);
/* API to send an IPI to dest guest */
void send_dest_ipi(uint32_t dest, uint32_t vector, uint32_t dest_mode);
/* API to send an IPI to a single guest */ /* API to send an IPI to a single guest */
void send_single_ipi(uint16_t pcpu_id, uint32_t vector); void send_single_ipi(uint16_t pcpu_id, uint32_t vector);