diff options
| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2017-03-30 11:07:28 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-04-04 08:22:34 +0200 |
| commit | 335437fbf7d3a630d775f06c9ee37d60919561d8 (patch) | |
| tree | 88cab3cf94d723c1f9bec1697da1117759af8200 /arch/x86/kernel/paravirt.c | |
| parent | 4c7c44837be77e2689c577abef155c4b5d873c82 (diff) | |
| download | linux-335437fbf7d3a630d775f06c9ee37d60919561d8.tar.bz2 | |
x86/paravirt: Add 5-level support to the paravirt code
Add operations to allocate/release p4ds.
Xen requires more work. We will need to come back to it.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-arch@vger.kernel.org
Cc: linux-mm@kvack.org
Link: http://lkml.kernel.org/r/20170330080731.65421-5-kirill.shutemov@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kernel/paravirt.c')
| -rw-r--r-- | arch/x86/kernel/paravirt.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c index 110daf22f5c7..3586996fc50d 100644 --- a/arch/x86/kernel/paravirt.c +++ b/arch/x86/kernel/paravirt.c @@ -405,9 +405,11 @@ struct pv_mmu_ops pv_mmu_ops __ro_after_init = { .alloc_pte = paravirt_nop, .alloc_pmd = paravirt_nop, .alloc_pud = paravirt_nop, + .alloc_p4d = paravirt_nop, .release_pte = paravirt_nop, .release_pmd = paravirt_nop, .release_pud = paravirt_nop, + .release_p4d = paravirt_nop, .set_pte = native_set_pte, .set_pte_at = native_set_pte_at, @@ -437,8 +439,11 @@ struct pv_mmu_ops pv_mmu_ops __ro_after_init = { .set_p4d = native_set_p4d, #if CONFIG_PGTABLE_LEVELS >= 5 -#error FIXME -#endif /* CONFIG_PGTABLE_LEVELS >= 4 */ + .p4d_val = PTE_IDENT, + .make_p4d = PTE_IDENT, + + .set_pgd = native_set_pgd, +#endif /* CONFIG_PGTABLE_LEVELS >= 5 */ #endif /* CONFIG_PGTABLE_LEVELS >= 4 */ #endif /* CONFIG_PGTABLE_LEVELS >= 3 */ |