To prepare for performing CMOs for guest stage-2 in the fault handlers in pgtable.c, here introduce two cache maintenance callbacks in struct kvm_pgtable_mm_ops. We also adjust the comment alignment for the existing part but make no real content change at all.
Signed-off-by: Yanan Wang <[email protected]> --- arch/arm64/include/asm/kvm_pgtable.h | 42 +++++++++++++++++----------- 1 file changed, 25 insertions(+), 17 deletions(-) diff --git a/arch/arm64/include/asm/kvm_pgtable.h b/arch/arm64/include/asm/kvm_pgtable.h index c3674c47d48c..b6ce34aa44bb 100644 --- a/arch/arm64/include/asm/kvm_pgtable.h +++ b/arch/arm64/include/asm/kvm_pgtable.h @@ -27,23 +27,29 @@ typedef u64 kvm_pte_t; /** * struct kvm_pgtable_mm_ops - Memory management callbacks. - * @zalloc_page: Allocate a single zeroed memory page. The @arg parameter - * can be used by the walker to pass a memcache. The - * initial refcount of the page is 1. - * @zalloc_pages_exact: Allocate an exact number of zeroed memory pages. The - * @size parameter is in bytes, and is rounded-up to the - * next page boundary. The resulting allocation is - * physically contiguous. - * @free_pages_exact: Free an exact number of memory pages previously - * allocated by zalloc_pages_exact. - * @get_page: Increment the refcount on a page. - * @put_page: Decrement the refcount on a page. When the refcount - * reaches 0 the page is automatically freed. - * @page_count: Return the refcount of a page. - * @phys_to_virt: Convert a physical address into a virtual address mapped - * in the current context. - * @virt_to_phys: Convert a virtual address mapped in the current context - * into a physical address. + * @zalloc_page: Allocate a single zeroed memory page. + * The @arg parameter can be used by the walker + * to pass a memcache. The initial refcount of + * the page is 1. + * @zalloc_pages_exact: Allocate an exact number of zeroed memory pages. + * The @size parameter is in bytes, and is rounded + * up to the next page boundary. The resulting + * allocation is physically contiguous. + * @free_pages_exact: Free an exact number of memory pages previously + * allocated by zalloc_pages_exact. + * @get_page: Increment the refcount on a page. + * @put_page: Decrement the refcount on a page. When the + * refcount reaches 0 the page is automatically + * freed. + * @page_count: Return the refcount of a page. + * @phys_to_virt: Convert a physical address into a virtual address + * mapped in the current context. + * @virt_to_phys: Convert a virtual address mapped in the current + * context into a physical address. + * @clean_invalidate_dcache: Clean and invalidate the data cache for the + * specified memory address range. + * @invalidate_icache: Invalidate the instruction cache for the + * specified memory address range. */ struct kvm_pgtable_mm_ops { void* (*zalloc_page)(void *arg); @@ -54,6 +60,8 @@ struct kvm_pgtable_mm_ops { int (*page_count)(void *addr); void* (*phys_to_virt)(phys_addr_t phys); phys_addr_t (*virt_to_phys)(void *addr); + void (*clean_invalidate_dcache)(void *addr, size_t size); + void (*invalidate_icache)(void *addr, size_t size); }; /** -- 2.23.0 _______________________________________________ kvmarm mailing list [email protected] https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
