diff options
| -rw-r--r-- | extras/mini-os/arch/x86/mm.c | 17 |
1 files changed, 2 insertions, 15 deletions
diff --git a/extras/mini-os/arch/x86/mm.c b/extras/mini-os/arch/x86/mm.c index 1ef083aca8..50fcc11688 100644 --- a/extras/mini-os/arch/x86/mm.c +++ b/extras/mini-os/arch/x86/mm.c @@ -59,11 +59,10 @@ void new_pt_frame(unsigned long *pt_pfn, unsigned long prev_l_mfn, { pgentry_t *tab = (pgentry_t *)start_info.pt_base; unsigned long pt_page = (unsigned long)pfn_to_virt(*pt_pfn); - unsigned long prot_e, prot_t, pincmd; + unsigned long prot_e, prot_t; mmu_update_t mmu_updates[1]; - struct mmuext_op pin_request; - prot_e = prot_t = pincmd = 0; + prot_e = prot_t = 0; DEBUG("Allocating new L%d pt frame for pt_pfn=%lx, " "prev_l_mfn=%lx, offset=%lx", level, *pt_pfn, prev_l_mfn, offset); @@ -77,18 +76,15 @@ void new_pt_frame(unsigned long *pt_pfn, unsigned long prev_l_mfn, case L1_FRAME: prot_e = L1_PROT; prot_t = L2_PROT; - pincmd = MMUEXT_PIN_L1_TABLE; break; case L2_FRAME: prot_e = L2_PROT; prot_t = L3_PROT; - pincmd = MMUEXT_PIN_L2_TABLE; break; #if defined(__x86_64__) case L3_FRAME: prot_e = L3_PROT; prot_t = L4_PROT; - pincmd = MMUEXT_PIN_L3_TABLE; break; #endif default: @@ -113,15 +109,6 @@ void new_pt_frame(unsigned long *pt_pfn, unsigned long prev_l_mfn, do_exit(); } - /* Pin the page to provide correct protection */ - pin_request.cmd = pincmd; - pin_request.arg1.mfn = pfn_to_mfn(*pt_pfn); - if(HYPERVISOR_mmuext_op(&pin_request, 1, NULL, DOMID_SELF) < 0) - { - printk("ERROR: pinning failed\n"); - do_exit(); - } - /* Now fill the new page table page with entries. Update the page directory as well. */ mmu_updates[0].ptr = ((pgentry_t)prev_l_mfn << PAGE_SHIFT) + sizeof(pgentry_t) * offset; |