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Commit d5108316 authored by Jeremy Fitzhardinge's avatar Jeremy Fitzhardinge
Browse files

xen: use normal virt_to_machine for ptes 



We no longer support HIGHPTE allocations, so ptes should always be
within the kernel's direct map, and don't need pagetable walks
to convert to machine addresses.

Signed-off-by: default avatarJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
parent 4c13629f

arch/x86/xen/mmu.c

+5 −5
Original line number Diff line number Diff line
@@ -246,7 +246,7 @@ void xen_set_domain_pte(pte_t *ptep, pte_t pteval, unsigned domid) 
	u = mcs.args;



	/* ptep might be kmapped when using 32-bit HIGHPTE */

	u->ptr = arbitrary_virt_to_machine(ptep).maddr;

	u->ptr = virt_to_machine(ptep).maddr;

	u->val = pte_val_ma(pteval);



	MULTI_mmu_update(mcs.mc, mcs.args, 1, NULL, domid);
@@ -292,7 +292,7 @@ static void xen_set_pmd_hyper(pmd_t *ptr, pmd_t val) 
	xen_mc_batch();



	/* ptr may be ioremapped for 64-bit pagetable setup */

	u.ptr = arbitrary_virt_to_machine(ptr).maddr;

	u.ptr = virt_to_machine(ptr).maddr;

	u.val = pmd_val_ma(val);

	xen_extend_mmu_update(&u);
@@ -375,7 +375,7 @@ void xen_ptep_modify_prot_commit(struct mm_struct *mm, unsigned long addr, 


	xen_mc_batch();



	u.ptr = arbitrary_virt_to_machine(ptep).maddr | MMU_PT_UPDATE_PRESERVE_AD;

	u.ptr = virt_to_machine(ptep).maddr | MMU_PT_UPDATE_PRESERVE_AD;

	u.val = pte_val_ma(pte);

	xen_extend_mmu_update(&u);
@@ -589,7 +589,7 @@ static void xen_set_pud_hyper(pud_t *ptr, pud_t val) 
	xen_mc_batch();



	/* ptr may be ioremapped for 64-bit pagetable setup */

	u.ptr = arbitrary_virt_to_machine(ptr).maddr;

	u.ptr = virt_to_machine(ptr).maddr;

	u.val = pud_val_ma(val);

	xen_extend_mmu_update(&u);
@@ -2331,7 +2331,7 @@ static int remap_area_mfn_pte_fn(pte_t *ptep, pgtable_t token, 
	struct remap_data *rmd = data;

	pte_t pte = pte_mkspecial(pfn_pte(rmd->mfn++, rmd->prot));



	rmd->mmu_update->ptr = arbitrary_virt_to_machine(ptep).maddr;

	rmd->mmu_update->ptr = virt_to_machine(ptep).maddr;

	rmd->mmu_update->val = pte_val_ma(pte);

	rmd->mmu_update++;