mmu_pv.c (ecb41832bd2a7a3f8ac93527cec5e51e3827daed) mmu_pv.c (55aedddb6149ab71bec9f050846855113977b033)
1// SPDX-License-Identifier: GPL-2.0
2
3/*
4 * Xen mmu operations
5 *
6 * This file contains the various mmu fetch and update operations.
7 * The most important job they must perform is the mapping between the
8 * domain's pfn and the overall machine mfns.

--- 1293 unchanged lines hidden (view full) ---

1302 xen_remap_memory();
1303 xen_setup_mfn_list_list();
1304}
1305static void xen_write_cr2(unsigned long cr2)
1306{
1307 this_cpu_read(xen_vcpu)->arch.cr2 = cr2;
1308}
1309
1// SPDX-License-Identifier: GPL-2.0
2
3/*
4 * Xen mmu operations
5 *
6 * This file contains the various mmu fetch and update operations.
7 * The most important job they must perform is the mapping between the
8 * domain's pfn and the overall machine mfns.

--- 1293 unchanged lines hidden (view full) ---

1302 xen_remap_memory();
1303 xen_setup_mfn_list_list();
1304}
1305static void xen_write_cr2(unsigned long cr2)
1306{
1307 this_cpu_read(xen_vcpu)->arch.cr2 = cr2;
1308}
1309
1310static unsigned long xen_read_cr2(void)
1311{
1312 return this_cpu_read(xen_vcpu)->arch.cr2;
1313}
1314
1315unsigned long xen_read_cr2_direct(void)
1316{
1317 return this_cpu_read(xen_vcpu_info.arch.cr2);
1318}
1319
1320static noinline void xen_flush_tlb(void)
1321{
1322 struct mmuext_op *op;
1323 struct multicall_space mcs;
1324
1325 preempt_disable();
1326
1327 mcs = xen_mc_entry(sizeof(*op));

--- 1064 unchanged lines hidden (view full) ---

2392{
2393 preempt_disable();
2394 xen_mc_flush();
2395 paravirt_leave_lazy_mmu();
2396 preempt_enable();
2397}
2398
2399static const struct pv_mmu_ops xen_mmu_ops __initconst = {
1310static noinline void xen_flush_tlb(void)
1311{
1312 struct mmuext_op *op;
1313 struct multicall_space mcs;
1314
1315 preempt_disable();
1316
1317 mcs = xen_mc_entry(sizeof(*op));

--- 1064 unchanged lines hidden (view full) ---

2382{
2383 preempt_disable();
2384 xen_mc_flush();
2385 paravirt_leave_lazy_mmu();
2386 preempt_enable();
2387}
2388
2389static const struct pv_mmu_ops xen_mmu_ops __initconst = {
2400 .read_cr2 = xen_read_cr2,
2390 .read_cr2 = __PV_IS_CALLEE_SAVE(xen_read_cr2),
2401 .write_cr2 = xen_write_cr2,
2402
2403 .read_cr3 = xen_read_cr3,
2404 .write_cr3 = xen_write_cr3_init,
2405
2406 .flush_tlb_user = xen_flush_tlb,
2407 .flush_tlb_kernel = xen_flush_tlb,
2408 .flush_tlb_one_user = xen_flush_tlb_one_user,

--- 286 unchanged lines hidden (view full) ---

2695struct remap_data {
2696 xen_pfn_t *pfn;
2697 bool contiguous;
2698 bool no_translate;
2699 pgprot_t prot;
2700 struct mmu_update *mmu_update;
2701};
2702
2391 .write_cr2 = xen_write_cr2,
2392
2393 .read_cr3 = xen_read_cr3,
2394 .write_cr3 = xen_write_cr3_init,
2395
2396 .flush_tlb_user = xen_flush_tlb,
2397 .flush_tlb_kernel = xen_flush_tlb,
2398 .flush_tlb_one_user = xen_flush_tlb_one_user,

--- 286 unchanged lines hidden (view full) ---

2685struct remap_data {
2686 xen_pfn_t *pfn;
2687 bool contiguous;
2688 bool no_translate;
2689 pgprot_t prot;
2690 struct mmu_update *mmu_update;
2691};
2692
2703static int remap_area_pfn_pte_fn(pte_t *ptep, pgtable_t token,
2704 unsigned long addr, void *data)
2693static int remap_area_pfn_pte_fn(pte_t *ptep, unsigned long addr, void *data)
2705{
2706 struct remap_data *rmd = data;
2707 pte_t pte = pte_mkspecial(mfn_pte(*rmd->pfn, rmd->prot));
2708
2709 /*
2710 * If we have a contiguous range, just update the pfn itself,
2711 * else update pointer to be "next pfn".
2712 */

--- 103 unchanged lines hidden --- 		2694{
2695 struct remap_data *rmd = data;
2696 pte_t pte = pte_mkspecial(mfn_pte(*rmd->pfn, rmd->prot));
2697
2698 /*
2699 * If we have a contiguous range, just update the pfn itself,
2700 * else update pointer to be "next pfn".
2701 */

--- 103 unchanged lines hidden ---