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hugetlb: add ept map memseg support

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adding API vm_map_memseg_vma() which using ioctl IC_SET_MEMSEG call
into VHM for futher mem(ept) mapping, based on user vma information.

Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Xu, Anthony <anthony.xu@intel.com>
This commit is contained in:
Jason Chen CJ
2018-01-30 22:58:40 +08:00
committed by Jack Ren
parent 4cad694be2
commit 25ef14edac
4 changed files with 52 additions and 11 deletions
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27
devicemodel/include/public/vhm_ioctl_defs.h
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@@ -121,19 +121,30 @@ struct vm_memseg {
/**
* struct vm_memmap - EPT memory mapping info for guest
*
* @type: memory mapping type
* @gpa: guest physical start address of memory mapping
* @hpa: host physical start address of memory
* @len: the length of memory range mapped
* @prot: memory mapping attribute
*/
struct vm_memmap {
/** @type: memory mapping type */
uint32_t type;
uint32_t reserved;
/** @using_vma: using vma_base to get vm0_gpa,
* only for type == VM_SYSTEM
*/
uint32_t using_vma;
/** @gpa: user OS guest physical start address of memory mapping */
uint64_t gpa;
uint64_t hpa; /* only for type == VM_MMIO */
/** union */
union {
/** @hpa: host physical start address of memory,
* only for type == VM_MMIO
*/
uint64_t hpa;
/** @vma_base: service OS user virtual start address of
* memory, only for type == VM_SYSMEM && using_vma == true
*/
uint64_t vma_base;
};
/** @len: the length of memory range mapped */
uint64_t len; /* mmap length */
/** @prot: memory mapping attribute */
uint32_t prot; /* RWX */
};