diff options
Diffstat (limited to 'lib/libvmmapi/vmmapi.h')
| -rw-r--r-- | lib/libvmmapi/vmmapi.h | 52 |
1 files changed, 49 insertions, 3 deletions
diff --git a/lib/libvmmapi/vmmapi.h b/lib/libvmmapi/vmmapi.h index d3ecdc4..57f8c56 100644 --- a/lib/libvmmapi/vmmapi.h +++ b/lib/libvmmapi/vmmapi.h @@ -36,7 +36,7 @@ * API version for out-of-tree consumers like grub-bhyve for making compile * time decisions. */ -#define VMMAPI_VERSION 0101 /* 2 digit major followed by 2 digit minor */ +#define VMMAPI_VERSION 0102 /* 2 digit major followed by 2 digit minor */ struct iovec; struct vmctx; @@ -52,14 +52,59 @@ enum vm_mmap_style { VM_MMAP_SPARSE, /* mappings created on-demand */ }; +/* + * 'flags' value passed to 'vm_set_memflags()'. + */ #define VM_MEM_F_INCORE 0x01 /* include guest memory in core file */ +#define VM_MEM_F_WIRED 0x02 /* guest memory is wired */ + +/* + * Identifiers for memory segments: + * - vm_setup_memory() uses VM_SYSMEM for the system memory segment. + * - the remaining identifiers can be used to create devmem segments. + */ +enum { + VM_SYSMEM, + VM_BOOTROM, + VM_FRAMEBUFFER, +}; + +/* + * Get the length and name of the memory segment identified by 'segid'. + * Note that system memory segments are identified with a nul name. + * + * Returns 0 on success and non-zero otherwise. + */ +int vm_get_memseg(struct vmctx *ctx, int ident, size_t *lenp, char *name, + size_t namesiz); + +/* + * Iterate over the guest address space. This function finds an address range + * that starts at an address >= *gpa. + * + * Returns 0 if the next address range was found and non-zero otherwise. + */ +int vm_mmap_getnext(struct vmctx *ctx, vm_paddr_t *gpa, int *segid, + vm_ooffset_t *segoff, size_t *len, int *prot, int *flags); +/* + * Create a device memory segment identified by 'segid'. + * + * Returns a pointer to the memory segment on success and MAP_FAILED otherwise. + */ +void *vm_create_devmem(struct vmctx *ctx, int segid, const char *name, + size_t len); + +/* + * Map the memory segment identified by 'segid' into the guest address space + * at [gpa,gpa+len) with protection 'prot'. + */ +int vm_mmap_memseg(struct vmctx *ctx, vm_paddr_t gpa, int segid, + vm_ooffset_t segoff, size_t len, int prot); int vm_create(const char *name); struct vmctx *vm_open(const char *name); void vm_destroy(struct vmctx *ctx); int vm_parse_memsize(const char *optarg, size_t *memsize); -int vm_get_memory_seg(struct vmctx *ctx, vm_paddr_t gpa, size_t *ret_len, - int *wired); int vm_setup_memory(struct vmctx *ctx, size_t len, enum vm_mmap_style s); void *vm_map_gpa(struct vmctx *ctx, vm_paddr_t gaddr, size_t len); int vm_get_gpa_pmap(struct vmctx *, uint64_t gpa, uint64_t *pte, int *num); @@ -68,6 +113,7 @@ int vm_gla2gpa(struct vmctx *, int vcpuid, struct vm_guest_paging *paging, uint32_t vm_get_lowmem_limit(struct vmctx *ctx); void vm_set_lowmem_limit(struct vmctx *ctx, uint32_t limit); void vm_set_memflags(struct vmctx *ctx, int flags); +int vm_get_memflags(struct vmctx *ctx); size_t vm_get_lowmem_size(struct vmctx *ctx); size_t vm_get_highmem_size(struct vmctx *ctx); int vm_set_desc(struct vmctx *ctx, int vcpu, int reg, |
