Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
x86/xen: Drop xen_mmu_ops
Instead of having a pre-filled array xen_mmu_ops for Xen PV paravirt
functions, drop the array and assign each element individually.
This is in preparation of reducing the paravirt include hell by
splitting paravirt.h into multiple more fine grained header files,
which will in turn require to split up the pv_ops vector as well.
Dropping the pre-filled array makes life easier for objtool to
detect missing initializers in multiple pv_ops_ arrays.
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://patch.msgid.link/20260105110520.21356-18-jgross@suse.com
authored by
Juergen Gross
and committed by
Borislav Petkov (AMD)
7aef17f3
817f66e3
+38
-63
+38
-62
arch/x86/xen/mmu_pv.c
+38
-62
arch/x86/xen/mmu_pv.c
···
2175
2175
preempt_enable();
2176
2176
}
2177
2177
2178
-
static const typeof(pv_ops) xen_mmu_ops __initconst = {
2179
-
.mmu = {
2180
-
.read_cr2 = __PV_IS_CALLEE_SAVE(xen_read_cr2),
2181
-
.write_cr2 = xen_write_cr2,
2182
-
2183
-
.read_cr3 = xen_read_cr3,
2184
-
.write_cr3 = xen_write_cr3_init,
2185
-
2186
-
.flush_tlb_user = xen_flush_tlb,
2187
-
.flush_tlb_kernel = xen_flush_tlb,
2188
-
.flush_tlb_one_user = xen_flush_tlb_one_user,
2189
-
.flush_tlb_multi = xen_flush_tlb_multi,
2190
-
2191
-
.pgd_alloc = xen_pgd_alloc,
2192
-
.pgd_free = xen_pgd_free,
2193
-
2194
-
.alloc_pte = xen_alloc_pte_init,
2195
-
.release_pte = xen_release_pte_init,
2196
-
.alloc_pmd = xen_alloc_pmd_init,
2197
-
.release_pmd = xen_release_pmd_init,
2198
-
2199
-
.set_pte = xen_set_pte_init,
2200
-
.set_pmd = xen_set_pmd_hyper,
2201
-
2202
-
.ptep_modify_prot_start = xen_ptep_modify_prot_start,
2203
-
.ptep_modify_prot_commit = xen_ptep_modify_prot_commit,
2204
-
2205
-
.pte_val = PV_CALLEE_SAVE(xen_pte_val),
2206
-
.pgd_val = PV_CALLEE_SAVE(xen_pgd_val),
2207
-
2208
-
.make_pte = PV_CALLEE_SAVE(xen_make_pte_init),
2209
-
.make_pgd = PV_CALLEE_SAVE(xen_make_pgd),
2210
-
2211
-
.set_pud = xen_set_pud_hyper,
2212
-
2213
-
.make_pmd = PV_CALLEE_SAVE(xen_make_pmd),
2214
-
.pmd_val = PV_CALLEE_SAVE(xen_pmd_val),
2215
-
2216
-
.pud_val = PV_CALLEE_SAVE(xen_pud_val),
2217
-
.make_pud = PV_CALLEE_SAVE(xen_make_pud),
2218
-
.set_p4d = xen_set_p4d_hyper,
2219
-
2220
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.alloc_pud = xen_alloc_pmd_init,
2221
-
.release_pud = xen_release_pmd_init,
2222
-
2223
-
.p4d_val = PV_CALLEE_SAVE(xen_p4d_val),
2224
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.make_p4d = PV_CALLEE_SAVE(xen_make_p4d),
2225
-
2226
-
.enter_mmap = xen_enter_mmap,
2227
-
.exit_mmap = xen_exit_mmap,
2228
-
2229
-
.lazy_mode = {
2230
-
.enter = xen_enter_lazy_mmu,
2231
-
.leave = xen_leave_lazy_mmu,
2232
-
.flush = xen_flush_lazy_mmu,
2233
-
},
2234
-
2235
-
.set_fixmap = xen_set_fixmap,
2236
-
},
2237
-
};
2238
-
2239
2178
void __init xen_init_mmu_ops(void)
2240
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{
2241
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x86_init.paging.pagetable_init = xen_pagetable_init;
2242
2181
x86_init.hyper.init_after_bootmem = xen_after_bootmem;
2243
2182
2244
-
pv_ops.mmu = xen_mmu_ops.mmu;
2183
+
pv_ops.mmu.read_cr2 = __PV_IS_CALLEE_SAVE(xen_read_cr2);
2184
+
pv_ops.mmu.write_cr2 = xen_write_cr2;
2185
+
pv_ops.mmu.read_cr3 = xen_read_cr3;
2186
+
pv_ops.mmu.write_cr3 = xen_write_cr3_init;
2187
+
pv_ops.mmu.flush_tlb_user = xen_flush_tlb;
2188
+
pv_ops.mmu.flush_tlb_kernel = xen_flush_tlb;
2189
+
pv_ops.mmu.flush_tlb_one_user = xen_flush_tlb_one_user;
2190
+
pv_ops.mmu.flush_tlb_multi = xen_flush_tlb_multi;
2191
+
pv_ops.mmu.pgd_alloc = xen_pgd_alloc;
2192
+
pv_ops.mmu.pgd_free = xen_pgd_free;
2193
+
pv_ops.mmu.alloc_pte = xen_alloc_pte_init;
2194
+
pv_ops.mmu.release_pte = xen_release_pte_init;
2195
+
pv_ops.mmu.alloc_pmd = xen_alloc_pmd_init;
2196
+
pv_ops.mmu.release_pmd = xen_release_pmd_init;
2197
+
pv_ops.mmu.set_pte = xen_set_pte_init;
2198
+
pv_ops.mmu.set_pmd = xen_set_pmd_hyper;
2199
+
pv_ops.mmu.ptep_modify_prot_start = xen_ptep_modify_prot_start;
2200
+
pv_ops.mmu.ptep_modify_prot_commit = xen_ptep_modify_prot_commit;
2201
+
pv_ops.mmu.pte_val = PV_CALLEE_SAVE(xen_pte_val);
2202
+
pv_ops.mmu.pgd_val = PV_CALLEE_SAVE(xen_pgd_val);
2203
+
pv_ops.mmu.make_pte = PV_CALLEE_SAVE(xen_make_pte_init);
2204
+
pv_ops.mmu.make_pgd = PV_CALLEE_SAVE(xen_make_pgd);
2205
+
pv_ops.mmu.set_pud = xen_set_pud_hyper;
2206
+
pv_ops.mmu.make_pmd = PV_CALLEE_SAVE(xen_make_pmd);
2207
+
pv_ops.mmu.pmd_val = PV_CALLEE_SAVE(xen_pmd_val);
2208
+
pv_ops.mmu.pud_val = PV_CALLEE_SAVE(xen_pud_val);
2209
+
pv_ops.mmu.make_pud = PV_CALLEE_SAVE(xen_make_pud);
2210
+
pv_ops.mmu.set_p4d = xen_set_p4d_hyper;
2211
+
pv_ops.mmu.alloc_pud = xen_alloc_pmd_init;
2212
+
pv_ops.mmu.release_pud = xen_release_pmd_init;
2213
+
pv_ops.mmu.p4d_val = PV_CALLEE_SAVE(xen_p4d_val);
2214
+
pv_ops.mmu.make_p4d = PV_CALLEE_SAVE(xen_make_p4d);
2215
+
pv_ops.mmu.enter_mmap = xen_enter_mmap;
2216
+
pv_ops.mmu.exit_mmap = xen_exit_mmap;
2217
+
pv_ops.mmu.lazy_mode.enter = xen_enter_lazy_mmu;
2218
+
pv_ops.mmu.lazy_mode.leave = xen_leave_lazy_mmu;
2219
+
pv_ops.mmu.lazy_mode.flush = xen_flush_lazy_mmu;
2220
+
pv_ops.mmu.set_fixmap = xen_set_fixmap;
2245
2221
2246
2222
memset(dummy_mapping, 0xff, PAGE_SIZE);
2247
2223
}