diff options
| author | Quentin Perret <qperret@google.com> | 2021-06-08 11:45:16 +0000 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2021-06-11 13:24:11 +0100 |
| commit | d978b9cfe6fe8008467f8c5d51677f52e7815b39 (patch) | |
| tree | 5ef2b50354961ec30dcd9d8c72be350d760550ac /arch/arm64/kvm/hyp/include | |
| parent | 7c350ea39e53ade33ca7be00b0947f2b9f53dda0 (diff) | |
KVM: arm64: Remove hyp_pool pointer from struct hyp_page
Each struct hyp_page currently contains a pointer to a hyp_pool struct
where the page should be freed if its refcount reaches 0. However, this
information can always be inferred from the context in the EL2 code, so
drop the pointer to save a few bytes in the vmemmap.
Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210608114518.748712-6-qperret@google.com
Diffstat (limited to 'arch/arm64/kvm/hyp/include')
| -rw-r--r-- | arch/arm64/kvm/hyp/include/nvhe/gfp.h | 4 | ||||
| -rw-r--r-- | arch/arm64/kvm/hyp/include/nvhe/memory.h | 2 |
2 files changed, 2 insertions, 4 deletions
diff --git a/arch/arm64/kvm/hyp/include/nvhe/gfp.h b/arch/arm64/kvm/hyp/include/nvhe/gfp.h index f2c84e4fa40f..3ea7bfb6c380 100644 --- a/arch/arm64/kvm/hyp/include/nvhe/gfp.h +++ b/arch/arm64/kvm/hyp/include/nvhe/gfp.h @@ -24,8 +24,8 @@ struct hyp_pool { /* Allocation */ void *hyp_alloc_pages(struct hyp_pool *pool, unsigned int order); -void hyp_get_page(void *addr); -void hyp_put_page(void *addr); +void hyp_get_page(struct hyp_pool *pool, void *addr); +void hyp_put_page(struct hyp_pool *pool, void *addr); /* Used pages cannot be freed */ int hyp_pool_init(struct hyp_pool *pool, u64 pfn, unsigned int nr_pages, diff --git a/arch/arm64/kvm/hyp/include/nvhe/memory.h b/arch/arm64/kvm/hyp/include/nvhe/memory.h index 7691ab495eb4..991636be2f46 100644 --- a/arch/arm64/kvm/hyp/include/nvhe/memory.h +++ b/arch/arm64/kvm/hyp/include/nvhe/memory.h @@ -7,11 +7,9 @@ #include <linux/types.h> -struct hyp_pool; struct hyp_page { unsigned int refcount; unsigned int order; - struct hyp_pool *pool; }; extern u64 __hyp_vmemmap; |