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| author | Quentin Perret <qperret@google.com> | 2021-03-19 10:01:33 +0000 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2021-03-19 12:01:21 +0000 |
| commit | e37f37a0e780f23210b2a5cb314dab39fea7086a (patch) | |
| tree | 6aa9fb7351c362a2ec52d737abd08ae53aabeb49 /arch/arm64/include/asm/kvm_pgtable.h | |
| parent | 159b859beed76836a2c7cfa6303c312a40bb9dc7 (diff) | |
| download | linux-e37f37a0e780f23210b2a5cb314dab39fea7086a.tar.gz linux-e37f37a0e780f23210b2a5cb314dab39fea7086a.tar.bz2 linux-e37f37a0e780f23210b2a5cb314dab39fea7086a.zip | |
KVM: arm64: Make memcache anonymous in pgtable allocator
The current stage2 page-table allocator uses a memcache to get
pre-allocated pages when it needs any. To allow re-using this code at
EL2 which uses a concept of memory pools, make the memcache argument of
kvm_pgtable_stage2_map() anonymous, and let the mm_ops zalloc_page()
callbacks use it the way they need to.
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210319100146.1149909-26-qperret@google.com
Diffstat (limited to 'arch/arm64/include/asm/kvm_pgtable.h')
| -rw-r--r-- | arch/arm64/include/asm/kvm_pgtable.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/arm64/include/asm/kvm_pgtable.h b/arch/arm64/include/asm/kvm_pgtable.h index 9cdc198ea6b4..4ae19247837b 100644 --- a/arch/arm64/include/asm/kvm_pgtable.h +++ b/arch/arm64/include/asm/kvm_pgtable.h @@ -213,8 +213,8 @@ void kvm_pgtable_stage2_destroy(struct kvm_pgtable *pgt); * @size: Size of the mapping. * @phys: Physical address of the memory to map. * @prot: Permissions and attributes for the mapping. - * @mc: Cache of pre-allocated GFP_PGTABLE_USER memory from which to - * allocate page-table pages. + * @mc: Cache of pre-allocated and zeroed memory from which to allocate + * page-table pages. * * The offset of @addr within a page is ignored, @size is rounded-up to * the next page boundary and @phys is rounded-down to the previous page @@ -236,7 +236,7 @@ void kvm_pgtable_stage2_destroy(struct kvm_pgtable *pgt); */ int kvm_pgtable_stage2_map(struct kvm_pgtable *pgt, u64 addr, u64 size, u64 phys, enum kvm_pgtable_prot prot, - struct kvm_mmu_memory_cache *mc); + void *mc); /** * kvm_pgtable_stage2_unmap() - Remove a mapping from a guest stage-2 page-table. |