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yaml
---
r: 143236
b: refs/heads/master
c: c7da8c8
h: refs/heads/master
v: v3
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Jeremy Fitzhardinge committed Apr 8, 2009
1 parent c5f6a1a commit ea139d1
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Showing 2 changed files with 14 additions and 3 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: cdaead6b4e657f960d6d6f9f380e7dfeedc6a09b
refs/heads/master: c7da8c829b3f919089ff021d6ddc376d38299729
15 changes: 13 additions & 2 deletions trunk/arch/x86/xen/enlighten.c
Original file line number Diff line number Diff line change
Expand Up @@ -301,10 +301,21 @@ static void xen_load_gdt(const struct desc_ptr *dtr)
frames = mcs.args;

for (f = 0; va < dtr->address + size; va += PAGE_SIZE, f++) {
frames[f] = arbitrary_virt_to_mfn((void *)va);
int level;
pte_t *ptep = lookup_address(va, &level);
unsigned long pfn, mfn;
void *virt;

BUG_ON(ptep == NULL);

pfn = pte_pfn(*ptep);
mfn = pfn_to_mfn(pfn);
virt = __va(PFN_PHYS(pfn));

frames[f] = mfn;

make_lowmem_page_readonly((void *)va);
make_lowmem_page_readonly(mfn_to_virt(frames[f]));
make_lowmem_page_readonly(virt);
}

MULTI_set_gdt(mcs.mc, frames, size / sizeof(struct desc_struct));
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