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Differential D32006 Diff 95291 sys/amd64/amd64/mp_machdep.c

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sys/amd64/amd64/mp_machdep.c

Show First 20 Lines • Show All 328 Lines • ▼ Show 20 Linesstart_all_aps(void)
vm_paddr_t boot_address; vm_paddr_t boot_address;
u_int32_t mpbioswarmvec; u_int32_t mpbioswarmvec;
int apic_id, cpu, domain, i; int apic_id, cpu, domain, i;
u_char mpbiosreason; u_char mpbiosreason;
mtx_init(&ap_boot_mtx, "ap boot", NULL, MTX_SPIN); mtx_init(&ap_boot_mtx, "ap boot", NULL, MTX_SPIN);
MPASS(bootMP_size <= PAGE_SIZE); MPASS(bootMP_size <= PAGE_SIZE);
m_boottramp = vm_page_alloc_contig(NULL, 0, VM_ALLOC_NORMAL | m_boottramp = vm_page_alloc_noobj_contig(VM_ALLOC_NORMAL, 1, 0,
alcUnsubmitted
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I observe that you eliminated VM_ALLOC_NOBUSY here but not elsewhere. Why?

alc: I observe that you eliminated VM_ALLOC_NOBUSY here but not elsewhere. Why?
markjAuthorUnsubmitted
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No good reason. I think it makes sense to simply drop the VM_ALLOC_NOBUSY flag from all callers, as it is already implied by VM_ALLOC_NOOBJ.

markj: No good reason. I think it makes sense to simply drop the VM_ALLOC_NOBUSY flag from all callers…
alcUnsubmitted
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I agree.

alc: I agree.
VM_ALLOC_NOBUSY | VM_ALLOC_NOOBJ, 1, 0,
(1ULL << 20), /* Trampoline should be below 1M for real mode */ (1ULL << 20), /* Trampoline should be below 1M for real mode */
PAGE_SIZE, 0, VM_MEMATTR_DEFAULT); PAGE_SIZE, 0, VM_MEMATTR_DEFAULT);
boot_address = VM_PAGE_TO_PHYS(m_boottramp); boot_address = VM_PAGE_TO_PHYS(m_boottramp);
/* Create a transient 1:1 mapping of low 4G */ /* Create a transient 1:1 mapping of low 4G */
if (la57) { if (la57) {
m_pml4 = pmap_page_alloc_below_4g(true); m_pml4 = pmap_page_alloc_below_4g(true);
v_pml4 = (pml4_entry_t *)PHYS_TO_DMAP(VM_PAGE_TO_PHYS(m_pml4)); v_pml4 = (pml4_entry_t *)PHYS_TO_DMAP(VM_PAGE_TO_PHYS(m_pml4));
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