+++ /dev/null
-/******************************************************************************
- * xc_netbsd_build.c
- */
-
-#include "xc_private.h"
-#define ELFSIZE 32 /* XXX */
-#include "xc_elf.h"
-#include <zlib.h>
-
-#ifdef DEBUG
-#define DPRINTF(x) printf x
-#else
-#define DPRINTF(x)
-#endif
-
-static int loadelfimage(gzFile, int, u32, unsigned long *, unsigned long,
- unsigned long *, unsigned long *,
- unsigned long *, unsigned long *);
-
-#define ELFROUND (ELFSIZE / 8)
-
-#define L1_PROT (_PAGE_PRESENT|_PAGE_RW|_PAGE_ACCESSED)
-#define L2_PROT (_PAGE_PRESENT|_PAGE_RW|_PAGE_ACCESSED|_PAGE_DIRTY|_PAGE_USER)
-
-static long get_tot_pages(int xc_handle, u32 domid)
-{
- dom0_op_t op;
- op.cmd = DOM0_GETDOMAININFO;
- op.u.getdomaininfo.domain = (domid_t)domid;
- op.u.getdomaininfo.ctxt = NULL;
- return (do_dom0_op(xc_handle, &op) < 0) ?
- -1 : op.u.getdomaininfo.tot_pages;
-}
-
-static int get_pfn_list(int xc_handle,
- u32 domid,
- unsigned long *pfn_buf,
- unsigned long max_pfns)
-{
- dom0_op_t op;
- int ret;
- op.cmd = DOM0_GETMEMLIST;
- op.u.getmemlist.domain = (domid_t)domid;
- op.u.getmemlist.max_pfns = max_pfns;
- op.u.getmemlist.buffer = pfn_buf;
-
- if ( mlock(pfn_buf, max_pfns * sizeof(unsigned long)) != 0 )
- return -1;
-
- ret = do_dom0_op(xc_handle, &op);
-
- (void)munlock(pfn_buf, max_pfns * sizeof(unsigned long));
-
- return (ret < 0) ? -1 : op.u.getmemlist.num_pfns;
-}
-
-static int setup_guestos(int xc_handle,
- u32 dom,
- gzFile kernel_gfd,
- unsigned long tot_pages,
- unsigned long *virt_startinfo_addr,
- unsigned long *virt_load_addr,
- full_execution_context_t *ctxt,
- const char *cmdline,
- unsigned long shared_info_frame,
- unsigned int control_evtchn)
-{
- l1_pgentry_t *vl1tab=NULL, *vl1e=NULL;
- l2_pgentry_t *vl2tab=NULL, *vl2e=NULL;
- unsigned long *page_array = NULL;
- int alloc_index, num_pt_pages;
- unsigned long l2tab;
- unsigned long l1tab;
- unsigned long count, pt_start;
- unsigned long symtab_addr = 0, symtab_len = 0;
- start_info_t *start_info;
- shared_info_t *shared_info;
- unsigned long ksize;
- mmu_t *mmu = NULL;
- int i;
-
- if ( (page_array = malloc(tot_pages * sizeof(unsigned long))) == NULL )
- {
- PERROR("Could not allocate memory");
- goto error_out;
- }
-
- if ( get_pfn_list(xc_handle, dom, page_array, tot_pages) != tot_pages )
- {
- PERROR("Could not get the page frame list");
- goto error_out;
- }
-
- if (loadelfimage(kernel_gfd, xc_handle, dom, page_array, tot_pages,
- virt_load_addr, &ksize, &symtab_addr, &symtab_len))
- goto error_out;
-
- /* ksize is kernel-image size rounded up to a page boundary. */
-
- alloc_index = tot_pages - 1;
-
- /* Count bottom-level PTs, rounding up. */
- num_pt_pages = (l1_table_offset(*virt_load_addr) + tot_pages + 1023)
- / 1024;
-
- /* We must also count the page directory. */
- num_pt_pages++;
-
- /* Index of first PT page. */
- pt_start = tot_pages - num_pt_pages;
-
- /*
- * First allocate page for page dir. Allocation goes backwards from the end
- * of the allocated physical address space.
- */
- l2tab = page_array[alloc_index] << PAGE_SHIFT;
- alloc_index--;
- ctxt->pt_base = l2tab;
-
- if ( (mmu = init_mmu_updates(xc_handle, dom)) == NULL )
- goto error_out;
-
- /* Initialise the page tables. */
- if ( (vl2tab = xc_map_foreign_range(xc_handle, dom, PAGE_SIZE,
- PROT_READ|PROT_WRITE,
- l2tab >> PAGE_SHIFT)) == NULL )
- goto error_out;
- memset(vl2tab, 0, PAGE_SIZE);
- vl2e = &vl2tab[l2_table_offset(*virt_load_addr)];
- for ( count = 0; count < tot_pages; count++ )
- {
- if ( ((unsigned long)vl1e & (PAGE_SIZE-1)) == 0 )
- {
- l1tab = page_array[alloc_index--] << PAGE_SHIFT;
- if ( vl1tab != NULL )
- munmap(vl1tab, PAGE_SIZE);
- if ( (vl1tab = xc_map_foreign_range(xc_handle, dom, PAGE_SIZE,
- PROT_READ|PROT_WRITE,
- l1tab >> PAGE_SHIFT)) == NULL )
- {
- munmap(vl2tab, PAGE_SIZE);
- goto error_out;
- }
- memset(vl1tab, 0, PAGE_SIZE);
- vl1e = &vl1tab[l1_table_offset(*virt_load_addr +
- (count<<PAGE_SHIFT))];
- *vl2e++ = l1tab | L2_PROT;
- }
-
- *vl1e = (page_array[count] << PAGE_SHIFT) | L1_PROT;
- if ( count >= pt_start )
- *vl1e &= ~_PAGE_RW;
- vl1e++;
-
- if ( add_mmu_update(xc_handle, mmu,
- (page_array[count] << PAGE_SHIFT) |
- MMU_MACHPHYS_UPDATE, count) )
- {
- munmap(vl1tab, PAGE_SIZE);
- munmap(vl2tab, PAGE_SIZE);
- goto error_out;
- }
- }
- munmap(vl1tab, PAGE_SIZE);
- munmap(vl2tab, PAGE_SIZE);
-
- /*
- * Pin down l2tab addr as page dir page - causes hypervisor to provide
- * correct protection for the page
- */
- if ( add_mmu_update(xc_handle, mmu,
- l2tab | MMU_EXTENDED_COMMAND, MMUEXT_PIN_L2_TABLE) )
- goto error_out;
-
- *virt_startinfo_addr =
- *virt_load_addr + ((alloc_index-1) << PAGE_SHIFT);
-
- start_info = xc_map_foreign_range(
- xc_handle, dom, PAGE_SIZE, PROT_WRITE, page_array[alloc_index-1]);
- memset(start_info, 0, sizeof(*start_info));
- start_info->pt_base = *virt_load_addr + ((tot_pages-1) << PAGE_SHIFT);
- start_info->mod_start = symtab_addr;
- start_info->mod_len = symtab_len;
- start_info->nr_pages = tot_pages;
- start_info->shared_info = shared_info_frame << PAGE_SHIFT;
- start_info->flags = 0;
- start_info->domain_controller_evtchn = control_evtchn;
- strncpy(start_info->cmd_line, cmdline, MAX_CMDLINE);
- start_info->cmd_line[MAX_CMDLINE-1] = '\0';
- munmap(start_info, PAGE_SIZE);
-
- /* shared_info page starts its life empty. */
- shared_info = xc_map_foreign_range(
- xc_handle, dom, PAGE_SIZE, PROT_WRITE, shared_info_frame);
- memset(shared_info, 0, PAGE_SIZE);
- /* Mask all upcalls... */
- for ( i = 0; i < MAX_VIRT_CPUS; i++ )
- shared_info->vcpu_data[i].evtchn_upcall_mask = 1;
- munmap(shared_info, PAGE_SIZE);
-
- /* Send the page update requests down to the hypervisor. */
- if ( finish_mmu_updates(xc_handle, mmu) )
- goto error_out;
-
- free(mmu);
- free(page_array);
- return 0;
-
- error_out:
- if ( mmu != NULL )
- free(mmu);
- if ( page_array == NULL )
- free(page_array);
- return -1;
-}
-
-int xc_netbsd_build(int xc_handle,
- u32 domid,
- const char *image_name,
- const char *cmdline,
- unsigned int control_evtchn)
-{
- dom0_op_t launch_op, op;
- unsigned long load_addr;
- long tot_pages;
- int kernel_fd = -1;
- gzFile kernel_gfd = NULL;
- int rc, i;
- full_execution_context_t st_ctxt, *ctxt = &st_ctxt;
- unsigned long virt_startinfo_addr;
-
- if ( (tot_pages = get_tot_pages(xc_handle, domid)) < 0 )
- {
- PERROR("Could not find total pages for domain");
- return 1;
- }
-
- kernel_fd = open(image_name, O_RDONLY);
- if ( kernel_fd < 0 )
- {
- PERROR("Could not open kernel image");
- return 1;
- }
-
- if ( (kernel_gfd = gzdopen(kernel_fd, "rb")) == NULL )
- {
- PERROR("Could not allocate decompression state for state file");
- close(kernel_fd);
- return 1;
- }
-
- if ( mlock(&st_ctxt, sizeof(st_ctxt) ) )
- {
- PERROR("Unable to mlock ctxt");
- return 1;
- }
-
- op.cmd = DOM0_GETDOMAININFO;
- op.u.getdomaininfo.domain = (domid_t)domid;
- op.u.getdomaininfo.ctxt = ctxt;
- if ( (do_dom0_op(xc_handle, &op) < 0) ||
- ((u16)op.u.getdomaininfo.domain != domid) )
- {
- PERROR("Could not get info on domain");
- goto error_out;
- }
- if ( !(op.u.getdomaininfo.flags & DOMFLAGS_PAUSED) ||
- (op.u.getdomaininfo.ctxt->pt_base != 0) )
- {
- ERROR("Domain is already constructed");
- goto error_out;
- }
-
- if ( setup_guestos(xc_handle, domid, kernel_gfd, tot_pages,
- &virt_startinfo_addr,
- &load_addr, &st_ctxt, cmdline,
- op.u.getdomaininfo.shared_info_frame,
- control_evtchn) < 0 )
- {
- ERROR("Error constructing guest OS");
- goto error_out;
- }
-
- if ( kernel_fd >= 0 )
- close(kernel_fd);
- if( kernel_gfd )
- gzclose(kernel_gfd);
-
- ctxt->flags = 0;
-
- /*
- * Initial register values:
- * DS,ES,FS,GS = FLAT_GUESTOS_DS
- * CS:EIP = FLAT_GUESTOS_CS:start_pc
- * SS:ESP = FLAT_GUESTOS_DS:start_stack
- * ESI = start_info
- * [EAX,EBX,ECX,EDX,EDI,EBP are zero]
- * EFLAGS = IF | 2 (bit 1 is reserved and should always be 1)
- */
- ctxt->cpu_ctxt.ds = FLAT_GUESTOS_DS;
- ctxt->cpu_ctxt.es = FLAT_GUESTOS_DS;
- ctxt->cpu_ctxt.fs = FLAT_GUESTOS_DS;
- ctxt->cpu_ctxt.gs = FLAT_GUESTOS_DS;
- ctxt->cpu_ctxt.ss = FLAT_GUESTOS_DS;
- ctxt->cpu_ctxt.cs = FLAT_GUESTOS_CS;
- ctxt->cpu_ctxt.eip = load_addr;
- ctxt->cpu_ctxt.esp = virt_startinfo_addr;
- ctxt->cpu_ctxt.esi = virt_startinfo_addr;
- ctxt->cpu_ctxt.eflags = (1<<9) | (1<<2);
-
- /* FPU is set up to default initial state. */
- memset(ctxt->fpu_ctxt, 0, sizeof(ctxt->fpu_ctxt));
-
- /* Virtual IDT is empty at start-of-day. */
- for ( i = 0; i < 256; i++ )
- {
- ctxt->trap_ctxt[i].vector = i;
- ctxt->trap_ctxt[i].cs = FLAT_GUESTOS_CS;
- }
- ctxt->fast_trap_idx = 0;
-
- /* No LDT. */
- ctxt->ldt_ents = 0;
-
- /* Use the default Xen-provided GDT. */
- ctxt->gdt_ents = 0;
-
- /* Ring 1 stack is the initial stack. */
- ctxt->guestos_ss = FLAT_GUESTOS_DS;
- ctxt->guestos_esp = virt_startinfo_addr;
-
- /* No debugging. */
- memset(ctxt->debugreg, 0, sizeof(ctxt->debugreg));
-
- /* No callback handlers. */
- ctxt->event_callback_cs = FLAT_GUESTOS_CS;
- ctxt->event_callback_eip = 0;
- ctxt->failsafe_callback_cs = FLAT_GUESTOS_CS;
- ctxt->failsafe_callback_eip = 0;
-
- memset( &launch_op, 0, sizeof(launch_op) );
-
- launch_op.u.builddomain.domain = (domid_t)domid;
- launch_op.u.builddomain.ctxt = ctxt;
- launch_op.cmd = DOM0_BUILDDOMAIN;
- rc = do_dom0_op(xc_handle, &launch_op);
-
- return rc;
-
- error_out:
- if ( kernel_fd >= 0 )
- close(kernel_fd);
- if( kernel_gfd )
- gzclose(kernel_gfd);
-
- return -1;
-}
-
-#define MYSEEK_BUFSIZE 1024
-static off_t
-myseek(gzFile gfd, off_t offset, int whence)
-{
- unsigned char tmp[MYSEEK_BUFSIZE];
- int c;
-
- if ( offset < 0 )
- {
- ERROR("seek back not supported");
- return -1;
- }
-
- while ( offset != 0 )
- {
- c = offset;
- if ( c > MYSEEK_BUFSIZE )
- c = MYSEEK_BUFSIZE;
- if ( gzread(gfd, tmp, c) != c )
- {
- PERROR("Error seeking in image.");
- return -1;
- }
- offset -= c;
- }
-
- return 0; /* XXX */
-}
-
-/*
- * NetBSD memory layout:
- *
- * ---------------- *virt_load_addr = ehdr.e_entry (0xc0100000)
- * | kernel text |
- * | |
- * ----------------
- * | kernel data |
- * | |
- * ----------------
- * | kernel bss |
- * | |
- * ---------------- *symtab_addr
- * | symtab size | = *symtab_len
- * ----------------
- * | elf header | offsets to symbol sections mangled to be relative
- * | | to headers location
- * ----------------
- * | sym section |
- * | headers |
- * ----------------
- * | sym sections |
- * | |
- * ---------------- *symtab_addr + *symtab_len
- * | padding |
- * ---------------- ehdr.e_entry + *ksize << PAGE_SHIFT
- */
-
-#define IS_TEXT(p) (p.p_flags & PF_X)
-#define IS_DATA(p) (p.p_flags & PF_W)
-#define IS_BSS(p) (p.p_filesz < p.p_memsz)
-
-static int
-loadelfimage(gzFile kernel_gfd, int xch, u32 dom, unsigned long *page_array,
- unsigned long tot_pages, unsigned long *virt_load_addr,
- unsigned long *ksize, unsigned long *symtab_addr,
- unsigned long *symtab_len)
-{
- Elf_Ehdr ehdr;
- Elf_Phdr *phdr;
- Elf_Shdr *shdr;
- void *vaddr;
- char page[PAGE_SIZE], *p;
- unsigned long iva, maxva, symva;
- int c, curpos, h, i, ret, s;
-
- ret = -1;
- phdr = NULL;
- p = NULL;
- maxva = 0;
-
- if ( gzread(kernel_gfd, &ehdr, sizeof(Elf_Ehdr)) != sizeof(Elf_Ehdr) )
- {
- PERROR("Error reading kernel image ELF header.");
- goto out;
- }
- curpos = sizeof(Elf_Ehdr);
-
- if ( !IS_ELF(ehdr) )
- {
- PERROR("Image does not have an ELF header.");
- goto out;
- }
-
- *virt_load_addr = ehdr.e_entry;
-
- if ( (*virt_load_addr & (PAGE_SIZE-1)) != 0 )
- {
- ERROR("We can only deal with page-aligned load addresses");
- goto out;
- }
-
- if ( (*virt_load_addr + (tot_pages << PAGE_SHIFT)) >
- HYPERVISOR_VIRT_START )
- {
- ERROR("Cannot map all domain memory without hitting Xen space");
- goto out;
- }
-
-
- phdr = malloc(ehdr.e_phnum * sizeof(Elf_Phdr));
- if ( phdr == NULL )
- {
- ERROR("Cannot allocate memory for Elf_Phdrs");
- goto out;
- }
-
- if ( myseek(kernel_gfd, ehdr.e_phoff - curpos, SEEK_SET) == -1 )
- {
- ERROR("Seek to program header failed");
- goto out;
- }
- curpos = ehdr.e_phoff;
-
- if ( gzread(kernel_gfd, phdr, ehdr.e_phnum * sizeof(Elf_Phdr)) !=
- ehdr.e_phnum * sizeof(Elf_Phdr) )
- {
- PERROR("Error reading kernel image ELF program header.");
- goto out;
- }
- curpos += ehdr.e_phnum * sizeof(Elf_Phdr);
-
- /* Copy run-time 'load' segments that are writeable and/or executable. */
- for ( h = 0; h < ehdr.e_phnum; h++ )
- {
- if ( (phdr[h].p_type != PT_LOAD) ||
- ((phdr[h].p_flags & (PF_W|PF_X)) == 0) )
- continue;
-
- if ( IS_TEXT(phdr[h]) || IS_DATA(phdr[h]) )
- {
- if ( myseek(kernel_gfd, phdr[h].p_offset - curpos,
- SEEK_SET) == -1 )
- {
- ERROR("Seek to section failed");
- goto out;
- }
- curpos = phdr[h].p_offset;
-
- for ( iva = phdr[h].p_vaddr;
- iva < phdr[h].p_vaddr + phdr[h].p_filesz;
- iva += c)
- {
- c = PAGE_SIZE - (iva & (PAGE_SIZE - 1));
- if (iva + c > phdr[h].p_vaddr + phdr[h].p_filesz)
- c = phdr[h].p_vaddr + phdr[h].p_filesz - iva;
- if ( gzread(kernel_gfd, page, c) != c )
- {
- PERROR("Error reading kernel image page.");
- goto out;
- }
- curpos += c;
- vaddr = xc_map_foreign_range(
- xch, dom, PAGE_SIZE, PROT_WRITE,
- page_array[(iva - *virt_load_addr) >> PAGE_SHIFT]);
- if ( vaddr == NULL )
- {
- ERROR("Couldn't map guest memory");
- goto out;
- }
- DPRINTF(("copy page %p to %p, count 0x%x\n", (void *)iva,
- vaddr + (iva & (PAGE_SIZE - 1)), c));
- memcpy(vaddr + (iva & (PAGE_SIZE - 1)), page, c);
- munmap(vaddr, PAGE_SIZE);
- }
-
- if ( phdr[h].p_vaddr + phdr[h].p_filesz > maxva )
- maxva = phdr[h].p_vaddr + phdr[h].p_filesz;
- }
-
- if ( IS_BSS(phdr[h]) )
- {
- /* XXX maybe clear phdr[h].p_memsz bytes from
- phdr[h].p_vaddr + phdr[h].p_filesz ??? */
- if (phdr[h].p_vaddr + phdr[h].p_memsz > maxva)
- maxva = phdr[h].p_vaddr + phdr[h].p_memsz;
- DPRINTF(("bss from %p to %p, maxva %p\n",
- (void *)(phdr[h].p_vaddr + phdr[h].p_filesz),
- (void *)(phdr[h].p_vaddr + phdr[h].p_memsz),
- (void *)maxva));
- }
- }
-
- p = malloc(sizeof(int) + sizeof(Elf_Ehdr) +
- ehdr.e_shnum * sizeof(Elf_Shdr));
- if ( p == NULL )
- {
- ERROR("Cannot allocate memory for Elf_Shdrs");
- goto out;
- }
-
- shdr = (Elf_Shdr *)(p + sizeof(int) + sizeof(Elf_Ehdr));
-
- if ( myseek(kernel_gfd, ehdr.e_shoff - curpos, SEEK_SET) == -1 )
- {
- ERROR("Seek to symbol header failed");
- goto out;
- }
- curpos = ehdr.e_shoff;
-
- if ( gzread(kernel_gfd, shdr, ehdr.e_shnum * sizeof(Elf_Shdr)) !=
- ehdr.e_shnum * sizeof(Elf_Shdr) )
- {
- PERROR("Error reading kernel image ELF symbol header.");
- goto out;
- }
- curpos += ehdr.e_shnum * sizeof(Elf_Shdr);
-
- maxva = (maxva + ELFROUND - 1) & ~(ELFROUND - 1);
- symva = maxva;
- maxva += sizeof(int);
- *symtab_addr = maxva;
- *symtab_len = 0;
- maxva += sizeof(Elf_Ehdr) + ehdr.e_shnum * sizeof(Elf_Shdr);
- maxva = (maxva + ELFROUND - 1) & ~(ELFROUND - 1);
-
- /* Copy kernel string / symbol tables into physical memory */
- for ( h = 0; h < ehdr.e_shnum; h++ )
- {
- if ( shdr[h].sh_type == SHT_STRTAB )
- {
- /* Look for a strtab @i linked to symtab @h. */
- for ( i = 0; i < ehdr.e_shnum; i++ )
- if ( (shdr[i].sh_type == SHT_SYMTAB) &&
- (shdr[i].sh_link == h) )
- break;
- /* Skip symtab @h if we found no corresponding strtab @i. */
- if ( i == ehdr.e_shnum )
- {
- shdr[h].sh_offset = 0;
- continue;
- }
- }
-
- if ( (shdr[h].sh_type == SHT_STRTAB) ||
- (shdr[h].sh_type == SHT_SYMTAB) )
- {
- if ( myseek(kernel_gfd, shdr[h].sh_offset - curpos,
- SEEK_SET) == -1 )
- {
- ERROR("Seek to symbol section failed");
- goto out;
- }
- curpos = shdr[h].sh_offset;
-
- /* Mangled to be based on ELF header location. */
- shdr[h].sh_offset = maxva - *symtab_addr;
-
- DPRINTF(("copy section %d, size 0x%x\n", h, shdr[h].sh_size));
- for ( i = 0; i < shdr[h].sh_size; i += c, maxva += c )
- {
- c = PAGE_SIZE - (maxva & (PAGE_SIZE - 1));
- if ( c > (shdr[h].sh_size - i) )
- c = shdr[h].sh_size - i;
- if ( gzread(kernel_gfd, page, c) != c )
- {
- PERROR("Error reading kernel image page.");
- goto out;
- }
- curpos += c;
-
- vaddr = xc_map_foreign_range(
- xch, dom, PAGE_SIZE, PROT_WRITE,
- page_array[(maxva - *virt_load_addr) >> PAGE_SHIFT]);
- if ( vaddr == NULL )
- {
- ERROR("Couldn't map guest memory");
- goto out;
- }
- DPRINTF(("copy page %p to %p, count 0x%x\n", (void *)maxva,
- vaddr + (maxva & (PAGE_SIZE - 1)), c));
- memcpy(vaddr + (maxva & (PAGE_SIZE - 1)), page, c);
- munmap(vaddr, PAGE_SIZE);
- }
-
- *symtab_len += shdr[h].sh_size;
- maxva = (maxva + ELFROUND - 1) & ~(ELFROUND - 1);
-
- }
- shdr[h].sh_name = 0; /* Name is NULL. */
- }
-
- if ( *symtab_len == 0 )
- {
- DPRINTF(("no symbol table\n"));
- *symtab_addr = 0;
- ret = 0;
- goto out;
- }
-
- DPRINTF(("sym header va %p from %p/%p size %x/%x\n", (void *)symva,
- shdr, p, ehdr.e_shnum * sizeof(Elf_Shdr),
- ehdr.e_shnum * sizeof(Elf_Shdr) + sizeof(Elf_Ehdr)));
- ehdr.e_phoff = 0;
- ehdr.e_shoff = sizeof(Elf_Ehdr);
- ehdr.e_phentsize = 0;
- ehdr.e_phnum = 0;
- ehdr.e_shstrndx = SHN_UNDEF;
- memcpy(p + sizeof(int), &ehdr, sizeof(Elf_Ehdr));
- *(int *)p = maxva - *symtab_addr;
-
- /* Copy total length, crafted ELF header and section header table */
- s = sizeof(int) + sizeof(Elf_Ehdr) + ehdr.e_shnum * sizeof(Elf_Shdr);
- for ( i = 0; i < s; i += c, symva += c )
- {
- c = PAGE_SIZE - (symva & (PAGE_SIZE - 1));
- if ( c > s - i )
- c = s - i;
- vaddr = xc_map_foreign_range(
- xch, dom, PAGE_SIZE, PROT_WRITE,
- page_array[(symva - *virt_load_addr) >> PAGE_SHIFT]);
- if ( vaddr == NULL )
- {
- ERROR("Couldn't map guest memory");
- goto out;
- }
- DPRINTF(("copy page %p to %p, count 0x%x\n", (void *)symva,
- vaddr + (symva & (PAGE_SIZE - 1)), c));
- memcpy(vaddr + (symva & (PAGE_SIZE - 1)), p + i, c);
- munmap(vaddr, PAGE_SIZE);
- }
-
- *symtab_len = maxva - *symtab_addr;
-
- ret = 0;
-
- out:
- if ( ret == 0 )
- {
- maxva = (maxva + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1);
- *ksize = (maxva - *virt_load_addr) >> PAGE_SHIFT;
-
- DPRINTF(("virt_addr %p, kpages 0x%lx, symtab_addr %p, symtab_len %p\n",
- (void *)*virt_load_addr, *ksize, (void *)*symtab_addr,
- (void *)*symtab_len));
- }
-
- if ( phdr != NULL )
- free(phdr);
- if ( p != NULL )
- free(p);
- return ret;
-}
projects / xen.git / commitdiff