search for: shpage

attached is the vmx domain save/restore patch. works well for different guest/host combination W/O breaking domu save/restore according to my test. pls. first apply xiaowei''s qemu dm fix. ===know issue=== * shpage pfn * HV look for shpage pfn in an e820 entry when init. but some guest(win/em64t linux) will reuse this e820 ram, which cause losing shpage pfn when restore. so this entry is marked as "reserved" to avoid guest reuse (in this patch xc_hvm_build.c). we can change this if having go...

...; unsigned long pfn = vmalloc_to_pfn((void *)(x->buffer_addr+recv_offset*PAGE_SIZE)); printk(KERN_INFO "PFN 1 : %lu\n", pfn); // The returned PFN is "0", it''s therefore useless if(pfn_valid(pfn)){ printk(KERN_INFO "PFN 1 est valide\n"); } struct page * shPage = vmalloc_to_page((void *)(x->buffer_addr+recv_offset*PAGE_SIZE)); if(!page_count(shPage)){ printk(KERN_INFO "Error in page_count\n"); // I get a page, but the function page_count fails } I also tried to apply the operation >> PAGE_SHIFT to "manually" get the PFN b...

...hared_page_nr); + + /* caculate the store_mfn , wrong val cause hang when introduceDomain */ + *store_mfn = (v_end >> PAGE_SHIFT) - 2; + DPRINTF("hvm restore:calculate new store_mfn=0x%lx,v_end=0x%llx..\n", *store_mfn, v_end); + + /* restore hvm context including pic/pit/shpage */ + if (!read_exact(io_fd, &rec_len, sizeof(uint32_t))) { + ERROR("error read hvm context size!\n"); + goto out; + } + if (rec_len != sizeof(hvm_ctxt)) { + ERROR("hvm context size dismatch!\n"); + goto out; + } + + if (!read_exact(...