1.1 --- a/tools/libxc/ia64/xc_ia64_hvm_build.c	Wed Nov 07 10:31:09 2007 -0700
     1.2 +++ b/tools/libxc/ia64/xc_ia64_hvm_build.c	Wed Nov 07 10:34:09 2007 -0700
     1.3 @@ -893,9 +893,6 @@ setup_guest(int xc_handle, uint32_t dom,
     1.4              char *image, unsigned long image_size)
     1.5  {
     1.6      xen_pfn_t *pfn_list;
     1.7 -    shared_iopage_t *sp;
     1.8 -    void *ioreq_buffer_page;
     1.9 -    void *pio_buffer_page;
    1.10      unsigned long dom_memsize = memsize << 20;
    1.11      unsigned long nr_pages = memsize << (20 - PAGE_SHIFT);
    1.12      unsigned long vcpus;
    1.13 @@ -905,6 +902,16 @@ setup_guest(int xc_handle, uint32_t dom,
    1.14      unsigned long nvram_start = NVRAM_START, nvram_fd = 0; 
    1.15      int rc;
    1.16      long i;
    1.17 +    const struct hvm_special_page {
    1.18 +        int             param;
    1.19 +        xen_pfn_t       pfn;
    1.20 +    } special_pages[] = {
    1.21 +        // pfn-sorted array
    1.22 +        { HVM_PARAM_IOREQ_PFN,          IO_PAGE_START         >> PAGE_SHIFT},
    1.23 +        { HVM_PARAM_STORE_PFN,          STORE_PAGE_START      >> PAGE_SHIFT},
    1.24 +        { HVM_PARAM_BUFIOREQ_PFN,       BUFFER_IO_PAGE_START  >> PAGE_SHIFT}, 
    1.25 +        { HVM_PARAM_BUFPIOREQ_PFN,      BUFFER_PIO_PAGE_START >> PAGE_SHIFT},
    1.26 +    };
    1.27      DECLARE_DOMCTL;
    1.28  
    1.29  
    1.30 @@ -957,18 +964,12 @@ setup_guest(int xc_handle, uint32_t dom,
    1.31          goto error_out;
    1.32      }
    1.33  
    1.34 -    nr_special_pages = 0;
    1.35 -    pfn_list[nr_special_pages] = IO_PAGE_START >> PAGE_SHIFT;
    1.36 -    nr_special_pages++;
    1.37 -    pfn_list[nr_special_pages] = STORE_PAGE_START >> PAGE_SHIFT;
    1.38 -    nr_special_pages++;
    1.39 -    pfn_list[nr_special_pages] = BUFFER_IO_PAGE_START >> PAGE_SHIFT;
    1.40 -    nr_special_pages++;
    1.41 -    pfn_list[nr_special_pages] = BUFFER_PIO_PAGE_START >> PAGE_SHIFT;
    1.42 +    for (i = 0; i < sizeof(special_pages) / sizeof(special_pages[0]); i++)
    1.43 +        pfn_list[i] = special_pages[i].pfn;
    1.44  
    1.45 -    memmap_info_pfn = pfn_list[nr_special_pages] + 1;
    1.46 +    nr_special_pages = i;
    1.47 +    memmap_info_pfn = pfn_list[nr_special_pages - 1] + 1;
    1.48      memmap_info_num_pages = 1;
    1.49 -    nr_special_pages++;
    1.50      pfn_list[nr_special_pages] = memmap_info_pfn;
    1.51      nr_special_pages++;
    1.52  
    1.53 @@ -1033,28 +1034,14 @@ setup_guest(int xc_handle, uint32_t dom,
    1.54          goto error_out;
    1.55      }
    1.56  
    1.57 -    xc_set_hvm_param(xc_handle, dom, HVM_PARAM_STORE_PFN, pfn_list[1]);
    1.58 -
    1.59 -    // Retrieve special pages like io, xenstore, etc. 
    1.60 -    sp = (shared_iopage_t *)xc_map_foreign_range(xc_handle, dom, PAGE_SIZE,
    1.61 -                                                 PROT_READ | PROT_WRITE,
    1.62 -                                                 pfn_list[0]);
    1.63 -    if (sp == 0)
    1.64 -        goto error_out;
    1.65 +    // zero clear all special pages
    1.66 +    for (i = 0; i < sizeof(special_pages) / sizeof(special_pages[0]); i++) {
    1.67 +        xc_set_hvm_param(xc_handle, dom,
    1.68 +                         special_pages[i].param, special_pages[i].pfn);
    1.69 +        if (xc_clear_domain_page(xc_handle, dom, special_pages[i].pfn))
    1.70 +            goto error_out;
    1.71 +    }
    1.72  
    1.73 -    memset(sp, 0, PAGE_SIZE);
    1.74 -    munmap(sp, PAGE_SIZE);
    1.75 -    ioreq_buffer_page = xc_map_foreign_range(xc_handle, dom, PAGE_SIZE,
    1.76 -                                             PROT_READ | PROT_WRITE,
    1.77 -                                             pfn_list[2]); 
    1.78 -    memset(ioreq_buffer_page,0,PAGE_SIZE);
    1.79 -    munmap(ioreq_buffer_page, PAGE_SIZE);
    1.80 -
    1.81 -    pio_buffer_page = xc_map_foreign_range(xc_handle, dom, PAGE_SIZE,
    1.82 -                                           PROT_READ | PROT_WRITE,
    1.83 -                                           pfn_list[3]);
    1.84 -    memset(pio_buffer_page,0,PAGE_SIZE);
    1.85 -    munmap(pio_buffer_page, PAGE_SIZE);
    1.86      free(pfn_list);
    1.87      return 0;
    1.88  

     2.1 --- a/tools/libxc/ia64/xc_ia64_linux_restore.c	Wed Nov 07 10:31:09 2007 -0700
     2.2 +++ b/tools/libxc/ia64/xc_ia64_linux_restore.c	Wed Nov 07 10:34:09 2007 -0700
     2.3 @@ -285,9 +285,10 @@ xc_ia64_hvm_recv_context(int xc_handle, 
     2.4  
     2.5      /* HVM: magic frames for ioreqs and xenstore comms */
     2.6      const int hvm_params[] = {
     2.7 +        HVM_PARAM_STORE_PFN,
     2.8          HVM_PARAM_IOREQ_PFN,
     2.9          HVM_PARAM_BUFIOREQ_PFN,
    2.10 -        HVM_PARAM_STORE_PFN,
    2.11 +        HVM_PARAM_BUFPIOREQ_PFN,
    2.12      };
    2.13      const int NR_PARAMS = sizeof(hvm_params) / sizeof(hvm_params[0]);
    2.14      /* ioreq_pfn, bufioreq_pfn, store_pfn */
    2.15 @@ -368,7 +369,7 @@ xc_ia64_hvm_recv_context(int xc_handle, 
    2.16          ERROR("error setting HVM params: %i", rc);
    2.17          goto out;
    2.18      }
    2.19 -    *store_mfn = magic_pfns[2];
    2.20 +    *store_mfn = magic_pfns[0];
    2.21  
    2.22      /* Read HVM context */
    2.23      if (!read_exact(io_fd, &rec_size, sizeof(rec_size))) {

     3.1 --- a/tools/libxc/ia64/xc_ia64_linux_save.c	Wed Nov 07 10:31:09 2007 -0700
     3.2 +++ b/tools/libxc/ia64/xc_ia64_linux_save.c	Wed Nov 07 10:34:09 2007 -0700
     3.3 @@ -285,9 +285,10 @@ xc_ia64_hvm_send_context(int xc_handle, 
     3.4  
     3.5      /* HVM: magic frames for ioreqs and xenstore comms */
     3.6      const int hvm_params[] = {
     3.7 +        HVM_PARAM_STORE_PFN,
     3.8          HVM_PARAM_IOREQ_PFN,
     3.9          HVM_PARAM_BUFIOREQ_PFN,
    3.10 -        HVM_PARAM_STORE_PFN,
    3.11 +        HVM_PARAM_BUFPIOREQ_PFN,
    3.12      };
    3.13      const int NR_PARAMS = sizeof(hvm_params) / sizeof(hvm_params[0]);
    3.14      /* ioreq_pfn, bufioreq_pfn, store_pfn */