diff options
Diffstat (limited to 'tools/xc/lib/xc_linux_save.c')
| -rw-r--r-- | tools/xc/lib/xc_linux_save.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/tools/xc/lib/xc_linux_save.c b/tools/xc/lib/xc_linux_save.c index 40fc06acd5..1695bd63c0 100644 --- a/tools/xc/lib/xc_linux_save.c +++ b/tools/xc/lib/xc_linux_save.c @@ -189,7 +189,7 @@ int xc_linux_save(int xc_handle, } /* If the suspend-record MFN is okay then grab a copy of it to @srec. */ - p_srec = map_pfn(pm_handle, ctxt.i386_ctxt.esi); + p_srec = map_pfn_readonly(pm_handle, ctxt.i386_ctxt.esi); memcpy(&srec, p_srec, sizeof(srec)); unmap_pfn(pm_handle, p_srec); @@ -206,7 +206,8 @@ int xc_linux_save(int xc_handle, } /* Grab a copy of the pfn-to-mfn table frame list. */ - p_pfn_to_mfn_frame_list = map_pfn(pm_handle, srec.pfn_to_mfn_frame_list); + p_pfn_to_mfn_frame_list = map_pfn_readonly( + pm_handle, srec.pfn_to_mfn_frame_list); memcpy(pfn_to_mfn_frame_list, p_pfn_to_mfn_frame_list, PAGE_SIZE); unmap_pfn(pm_handle, p_pfn_to_mfn_frame_list); @@ -243,7 +244,7 @@ int xc_linux_save(int xc_handle, } if ( pfn_to_mfn_frame != NULL ) unmap_pfn(pm_handle, pfn_to_mfn_frame); - pfn_to_mfn_frame = map_pfn(pm_handle, mfn); + pfn_to_mfn_frame = map_pfn_readonly(pm_handle, mfn); } mfn = pfn_to_mfn_frame[i & 1023]; @@ -306,7 +307,7 @@ int xc_linux_save(int xc_handle, } /* Start writing out the saved-domain record. */ - ppage = map_pfn(pm_handle, shared_info_frame); + ppage = map_pfn_readonly(pm_handle, shared_info_frame); if ( !checked_write(gfd, "XenoLinuxSuspend", 16) || !checked_write(gfd, name, sizeof(name)) || !checked_write(gfd, &srec.nr_pfns, sizeof(unsigned long)) || @@ -335,7 +336,7 @@ int xc_linux_save(int xc_handle, mfn = pfn_to_mfn_table[i]; - ppage = map_pfn(pm_handle, mfn); + ppage = map_pfn_readonly(pm_handle, mfn); memcpy(page, ppage, PAGE_SIZE); unmap_pfn(pm_handle, ppage); |