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hv: vioapic: minor refine about madt ioapic parse

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Remove ioapic_parse_madt and do MADT IOAPIC parse in parse_madt_ioapic.

Tracked-On: #4550
Signed-off-by: Li Fei1 <fei1.li@intel.com>
This commit is contained in:
Li Fei1 2020-04-23 10:22:19 +08:00 committed by wenlingz
parent 907a0f7c04
commit c8618dd2fb
1 changed files with 21 additions and 41 deletions
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62
hypervisor/boot/acpi_base.c
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@ -209,40 +209,6 @@ local_parse_madt(struct acpi_table_madt *madt, uint32_t lapic_id_array[MAX_PCPU_
return pcpu_num; return pcpu_num;
} }
static uint8_t
ioapic_parse_madt(void *madt, struct ioapic_info *ioapic_id_array)
{
struct acpi_madt_ioapic *ioapic;
struct acpi_table_madt *madt_ptr;
void *first, *end, *iterator;
struct acpi_subtable_header *entry;
uint8_t ioapic_idx = 0U;
madt_ptr = (struct acpi_table_madt *)madt;
first = madt_ptr + 1;
end = (void *)madt_ptr + madt_ptr->header.length;
for (iterator = first; (iterator) < (end); iterator += entry->length) {
entry = (struct acpi_subtable_header *)iterator;
if (entry->length < sizeof(struct acpi_subtable_header)) {
break;
}
if (entry->type == ACPI_MADT_TYPE_IOAPIC) {
ioapic = (struct acpi_madt_ioapic *)iterator;
if (ioapic_idx < CONFIG_MAX_IOAPIC_NUM) {
ioapic_id_array[ioapic_idx].id = ioapic->id;
ioapic_id_array[ioapic_idx].addr = ioapic->addr;
ioapic_id_array[ioapic_idx].gsi_base = ioapic->gsi_base;
}
ioapic_idx++;
}
}
return ioapic_idx;
}
/* The lapic_id info gotten from madt will be returned in lapic_id_array */ /* The lapic_id info gotten from madt will be returned in lapic_id_array */
uint16_t parse_madt(uint32_t lapic_id_array[MAX_PCPU_NUM]) uint16_t parse_madt(uint32_t lapic_id_array[MAX_PCPU_NUM])
{ {
@ -263,17 +229,31 @@ uint16_t parse_madt(uint32_t lapic_id_array[MAX_PCPU_NUM])
uint8_t parse_madt_ioapic(struct ioapic_info *ioapic_id_array) uint8_t parse_madt_ioapic(struct ioapic_info *ioapic_id_array)
{ {
uint8_t ret = 0U; uint8_t ioapic_idx = 0U;
struct acpi_table_rsdp *rsdp = NULL; uint64_t entry, end;
const struct acpi_madt_ioapic *ioapic;
const struct acpi_table_madt *madt;
rsdp = get_rsdp(); if (get_rsdp() != NULL) {
if (rsdp != NULL) { madt = (const struct acpi_table_madt *)get_acpi_tbl(ACPI_SIG_MADT);
void *madt = get_acpi_tbl(ACPI_SIG_MADT);
if (madt != NULL) { if (madt != NULL) {
ret = ioapic_parse_madt(madt, ioapic_id_array); end = (uint64_t)madt + madt->header.length;
for (entry = (uint64_t)(madt + 1); entry < end; entry += ioapic->header.length) {
ioapic = (const struct acpi_madt_ioapic *)entry;
if (ioapic->header.type == ACPI_MADT_TYPE_IOAPIC) {
if (ioapic_idx < CONFIG_MAX_IOAPIC_NUM) {
ioapic_id_array[ioapic_idx].id = ioapic->id;
ioapic_id_array[ioapic_idx].addr = ioapic->addr;
ioapic_id_array[ioapic_idx].gsi_base = ioapic->gsi_base;
}
ioapic_idx++;
}
}
} }
} }
return ret; return ioapic_idx;
} }