search for: max_page

...you weren''t allocating headroom up front -- if >you can fix ia64 to allocate the extra memory as needed then you >shouldn''t need either of your workarounds? > > -- Keir OK, the question by far is that ia64 describes the memory hierarchy presented to domain by d->max_pages. Before balloon is ready, we at least need to ensure all frames covered by d->max_pages allocated for target domain. Then there''re two alternatives: - Keep the first piece of change on increase_reservation, which ensures all pages including extra spaces allocated immediately. - Pa...

...Info *info) +{ + /* common symbol */ + SYMBOL_INIT(dom_xen, "dom_xen"); + SYMBOL_INIT(dom_io, "dom_io"); + SYMBOL_INIT(domain_list, "domain_list"); + SYMBOL_INIT(frame_table, "frame_table"); + SYMBOL_INIT(alloc_bitmap, "alloc_bitmap"); + SYMBOL_INIT(max_page, "max_page"); + SYMBOL_INIT(xenheap_phys_end, "xenheap_phys_end"); + + /* architecture specific */ + SYMBOL_INIT(pgd_l2, "idle_pg_table_l2"); /* x86 */ + SYMBOL_INIT(pgd_l3, "idle_pg_table_l3"); /* x86-PAE */ + SYMBOL_INIT(pgd_l4, "idle_pg_table_4")...

u.inuse.type_info is at the end of the pfn_info structure, and is u32 for both x86_32 and x86_64--in this location it can also be the last 32 bits of a page. several functions use bitopts.h functions to manipulate this member, and on x86_64 these functions use u64 instructions, which will overflow the page boundary, and possibly the end of memory as we see here: (XEN)

...00100000 - 00000000f0000000 (usable) BIOS-e820: 00000000fc000000 - 0000000100000000 (reserved) BIOS-e820: 0000000100000000 - 000000030f000000 (usable) I see that the highest usable gpa is over 12GB due to the reserved slots and the max gfn is 30f000. If I use xc_domain_getinfolist() and look at max_pages, it returns 300100 which correctly reflects 12GB. But is there a way for me to find out the max gfn that is reflected in the guest using libxc? Thanks, AP

The following two patches are about how to speed up in xenpaging when page in pages. On suse11-64 with 4G memory,if we page out 2G pages,it will cost about 15.5 seconds, but take 2088 seconds to finish paging in.If page-in costs too much time,it will cause unmesurable problems when vm or dom0 access the paged_out page,such as BSOD,crash. What鈥檚 more,the dom0 is always in high I/O pressure.

...Beulich] - New hypercall(s) should fail for unpriv callers [IanC] - Non-zero extent_order disallowed [JBeulich] - Remove bonehead ASSERTs [JBeulich] - Need not hold heaplock for decrease case too [JBeulich] - More descriptive failure return values [JBeulich] - Don''t allow a claim to exceed max_pages [IanC] - Subops must be in correct ifdef block in memory.c [keir] v1->v2: - Add reset-to-zero page claim in domain_kill [JBeulich] - Proper handling of struct passed to hypercall [JBeulich] - Fix alloc_heap_pages when a domain has a claim [JBeulich] - Need not hold heap_lock if !d->unclaime...

...0 ) + goto fail; } d->max_vcpus = 8; diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c index 15632f7..6687e50 100644 --- a/xen/arch/arm/domain_build.c +++ b/xen/arch/arm/domain_build.c @@ -93,9 +93,6 @@ int construct_dom0(struct domain *d) d->max_pages = ~0U; - if ( (rc = p2m_alloc_table(d)) != 0 ) - return rc; - printk("Populate P2M %#llx->%#llx\n", kinfo.ram_start, kinfo.ram_end); p2m_populate_ram(d, kinfo.ram_start, kinfo.ram_end); diff --git a/xen/arch/arm/p2m.c b/xen/arch/arm/p2m.c index 051a0e8..4f624d8...

All, We met several system failures on different hardware platforms, which are all caused by VT-d fault. err 1: disk is corrupted by VT-d fault on SATA. err 2: Dom0 kernel panics at booting, which is caused VT-d fault on UHCI. err 3, Dom0 complains disk errors while creating HVM guests. The culprit would be changeset 19054 "x86_64: Remove statically-partitioned Xen heap.". Detailed

...int i; @@ -637,6 +638,17 @@ } victims = calloc(paging->num_pages, sizeof(xenpaging_victim_t)); + if (NULL == victims) + { + ERROR("Failed to alloc memory\n"); + goto out; + } + page_out_index = (victim_to_i_t *)calloc(paging->domain_info->max_pages, sizeof(victim_to_i_t)); + if ( NULL == page_out_index ) + { + ERROR("Failed to alloc memory\n"); + goto out; + } /* ensure that if we get a signal, we''ll do cleanup, then exit */ act.sa_handler = close_handler; @@ -660,6 +672,7 @@...

This adds a boolean boot parameter to xen to allow reserved memory regions to be added to the iommu mappings for dom0. The parameter is "iommu_include_reserved" and is off by default. A warning is also traced when incorrect RMRR to system memory map values are detected. This is being added to address some incorrect BIOS''s that do not report correctly the requied reserved memory

...Tue Jul 6 15:09:30 2004 --- obj-unstable/xeno-unstable.bk/linux-2.4.26-xen-sparse/arch/xen/drivers/balloon/balloon.c Fri Jul 16 15:12:11 2004 *************** *** 39,44 **** --- 39,45 ---- static struct proc_dir_entry *balloon_pde; unsigned long credit; + static unsigned long current_pages, max_pages; static inline pte_t *get_ptep(unsigned long addr) { *************** *** 221,270 **** return ret; } static int balloon_write(struct file *file, const char *buffer, u_long count, void *data) { ! user_balloon_op_t bop; /* Only admin can p...

...c.pae 2005-08-05 15:39:23.000000000 +0200 +++ xen/arch/x86/x86_32/mm.c 2005-08-05 16:05:39.115794436 +0200 @@ -98,7 +98,9 @@ * installed, but at least 4MB to cover 4GB address space. This is needed * to make PCI I/O memory address lookups work in guests. */ - if ( (mpt_size = max_page * 4) < (4*1024*1024) ) +#define L2_MASK ((1<<L2_PAGETABLE_SHIFT)-1) + mpt_size = (max_page * 4 + L2_MASK) & ~L2_MASK; + if (mpt_size < 4*1024*1024) mpt_size = 4*1024*1024; for ( i = 0; i < (mpt_size >> L2_PAGETABLE_SHIFT); i++ ) { _________________...

...-- a/xen/drivers/passthrough/amd/pci_amd_iommu.c +++ b/xen/drivers/passthrough/amd/pci_amd_iommu.c @@ -230,8 +230,16 @@ static void __init amd_iommu_dom0_init(s if ( !iommu_passthrough && !need_iommu(d) ) { /* Set up 1:1 page table for dom0 */ - for ( i = 0; i < max_page; i++ ) - amd_iommu_map_page(d, i, i, IOMMUF_readable|IOMMUF_writable); + for ( i = 0; i < max_pdx; i++ ) + { + unsigned long pfn = pdx_to_pfn(i); + + /* + * XXX Should we really map all non-RAM (above 4G)? Minimally + * a pfn...

...page is being written to. To this end, I''ve looked at the xen-access.c example, where at first all the pages are being monitored: xc_hvm_set_mem_access(xch, domain_id, HVMMEM_access_rx, ~0ull, 0); xc_hvm_set_mem_access(xch, domain_id, HVMMEM_access_rx, 0, xenaccess->domain_info->max_pages); Then, after an event is received: xc_hvm_set_mem_access(xch, domain_id, HVMMEM_access_rwx, req.gfn, 1); thus allowing ''rwx'' access to 1 page starting at req.gfn. This strategy indeed allows me to inspect writes to any page of the guest OS, however I can only do this once p...

...listener required\n", rc); + goto exit; + } /* Set the default access type and convert all pages to it */ rc = xc_hvm_set_mem_access(xch, domain_id, default_access, ~0ull, 0); - rc = xc_hvm_set_mem_access(xch, domain_id, default_access, 0, xenaccess->domain_info->max_pages); + if ( rc < 0 ) + { + ERROR("Error %d setting default mem access type\n", rc); + goto exit; + } + + rc = xc_hvm_set_mem_access(xch, domain_id, default_access, 0, + xenaccess->domain_info->max_pages); + if ( rc < 0 )...

...et, pointer to L2 directory). @@ -103,6 +106,8 @@ struct l1_entry { struct sparse_array { struct l1_entry *l1_dir; /* L1 directory. */ size_t l1_size; /* Number of entries in L1 directory. */ + size_t used_pages; /* Number of non-NULL L2 entries. */ + uint64_t max_pages; /* Maximum L2 pages if fully allocated. */ bool debug; }; @@ -140,6 +145,8 @@ alloc_sparse_array (bool debug) return NULL; sa->l1_dir = NULL; sa->l1_size = 0; + sa->used_pages = 0; + sa->max_pages = 0; sa->debug = debug; return sa; } @@ -254,6 +26...

Hi, On paravirt x86 (both 32- and 64-bit), since cset 13998: http://xenbits.xensource.com/xen-unstable.hg?rev/13998 we translate all ptes from being mfn-based to pfn-based when the hardware _PAGE_PRESENT bit is cleared. We do this for PROT_NONE pages, which appear to the HV to be non-present, but which are special-cased in the kernel to appear present (a different bit in the

...u64 pxmram, e820ram; - pxmram = 0; - for_each_node_mask(i, nodes_parsed) { - u64 s = nodes[i].start >> PAGE_SHIFT; - u64 e = nodes[i].end >> PAGE_SHIFT; - pxmram += e - s; - } + for (i = 0; i < e820.nr_map; i++) { + int j, found; + unsigned long long start, end; - e820ram = max_page; - /* We seem to lose 3 pages somewhere. Allow a bit of slack. */ - if ((long)(e820ram - pxmram) >= 1*1024*1024) { - printk(KERN_ERR "SRAT: PXMs only cover %"PRIu64"MB of your %" - PRIu64"MB e820 RAM. Not used.\n", - (pxmram << PAGE_SHIFT) >> 20, -...

...u.getdomaininfo.tot_pages; + info->nr_unclaimed_pages = domctl.u.getdomaininfo.unclaimed_pages; info->nr_shared_pages = domctl.u.getdomaininfo.shr_pages; info->nr_paged_pages = domctl.u.getdomaininfo.paged_pages; info->max_memkb = domctl.u.getdomaininfo.max_pages << (PAGE_SHIFT-10); diff --git a/tools/libxc/xenctrl.h b/tools/libxc/xenctrl.h index 7eb5743..325f4a3 100644 --- a/tools/libxc/xenctrl.h +++ b/tools/libxc/xenctrl.h @@ -364,6 +364,7 @@ typedef struct xc_dominfo { hvm:1, debugged:1; unsigned int shutdown_reason; /* on...

Due to IA64 balloon driver not ready and it depends on max memory value to allocate its memory. So this fix is necessary now. Thanks & Best Regards -Xiantao OTC,Intel Corporation _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel