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| author | Jeremy Fitzhardinge | 2008-06-16 13:30:01 +0200 |
|---|---|---|
| committer | Ingo Molnar | 2008-06-25 15:16:00 +0200 |
| commit | 08b882c627aeeeb3cfd3c4354f0d360d7949549d (patch) | |
| tree | bf4a25b0bf67c8e5886425ccd9eddc436602fa21 /arch | |
| parent | mm: add a ptep_modify_prot transaction abstraction (diff) | |
| download | kernel-qcow2-linux-08b882c627aeeeb3cfd3c4354f0d360d7949549d.tar.gz kernel-qcow2-linux-08b882c627aeeeb3cfd3c4354f0d360d7949549d.tar.xz kernel-qcow2-linux-08b882c627aeeeb3cfd3c4354f0d360d7949549d.zip | |
paravirt: add hooks for ptep_modify_prot_start/commit
This patch adds paravirt-ops hooks in pv_mmu_ops for ptep_modify_prot_start and
ptep_modify_prot_commit. This allows the hypervisor-specific backends to
implement these in some more efficient way.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/paravirt.c | 3 | ||||
| -rw-r--r-- | arch/x86/xen/enlighten.c | 3 |
2 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c index c98d54688180..f1ab0f727007 100644 --- a/arch/x86/kernel/paravirt.c +++ b/arch/x86/kernel/paravirt.c @@ -380,6 +380,9 @@ struct pv_mmu_ops pv_mmu_ops = { .pte_update = paravirt_nop, .pte_update_defer = paravirt_nop, + .ptep_modify_prot_start = __ptep_modify_prot_start, + .ptep_modify_prot_commit = __ptep_modify_prot_commit, + #ifdef CONFIG_HIGHPTE .kmap_atomic_pte = kmap_atomic, #endif diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index 73fb0c4c150a..0b7553cbc529 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -1138,6 +1138,9 @@ static const struct pv_mmu_ops xen_mmu_ops __initdata = { .set_pte_at = xen_set_pte_at, .set_pmd = xen_set_pmd_hyper, + .ptep_modify_prot_start = __ptep_modify_prot_start, + .ptep_modify_prot_commit = __ptep_modify_prot_commit, + .pte_val = xen_pte_val, .pte_flags = native_pte_val, .pgd_val = xen_pgd_val, |