search for: frame_list

hi I try to understand the code of balloon ,and got confused about the following parts of code: static int decrease_reservation(unsigned long nr_pages) { .... if (!PageHighMem(page)) { v = phys_to_virt(pfn << PAGE_SHIFT); scrub_pages(v, 1); ret = HYPERVISOR_update_va_mapping( (unsigned long)v, __pte_ma(0), 0);

...tions(+), 12 deletions(-) diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c index a50c6e3..b232908 100644 --- a/drivers/xen/balloon.c +++ b/drivers/xen/balloon.c @@ -398,8 +398,6 @@ static enum bp_state decrease_reservation(unsigned long nr_pages, gfp_t gfp) if (nr_pages > ARRAY_SIZE(frame_list)) nr_pages = ARRAY_SIZE(frame_list); - scratch_page = get_balloon_scratch_page(); - for (i = 0; i < nr_pages; i++) { page = alloc_page(gfp); if (page == NULL) { @@ -413,6 +411,12 @@ static enum bp_state decrease_reservation(unsigned long nr_pages, gfp_t gfp) scrub_page(page);...

...ditional_memory(unsigned long nr_pages) +{ + long rc; + resource_size_t r_min, r_size; + struct resource *r; + struct xen_memory_reservation reservation = { + .address_bits = 0, + .extent_order = 0, + .domid = DOMID_SELF + }; + unsigned long flags, i, pfn; + + if (nr_pages > ARRAY_SIZE(frame_list)) + nr_pages = ARRAY_SIZE(frame_list); + + spin_lock_irqsave(&balloon_lock, flags); + + if (!is_memory_resource_reserved()) { + + /* + * Look for first unused memory region starting at page + * boundary. Skip last memory section created at boot time + * becuase it may contains unused me...

Hi Jeremy. Here are the 3 patches for ia64/xen support. The first one is just to move manage.c under drivers/xen. This is trivial. The second and third ones are for compilation fix on ia64. You may want to postpone those 2 patches to make your merge task easy as you said before. thanks, Diffstat arch/x86/xen/Makefile | 2 +- drivers/xen/Makefile | 2 +-

Hi Jeremy. Here are the 3 patches for ia64/xen support. The first one is just to move manage.c under drivers/xen. This is trivial. The second and third ones are for compilation fix on ia64. You may want to postpone those 2 patches to make your merge task easy as you said before. thanks, Diffstat arch/x86/xen/Makefile | 2 +- drivers/xen/Makefile | 2 +-

...; > + struct resource *r; > > + struct xen_memory_reservation reservation = { > > + .address_bits = 0, > > + .extent_order = 0, > > + .domid = DOMID_SELF > > + }; > > + unsigned long flags, i, pfn; > > + > > + if (nr_pages > ARRAY_SIZE(frame_list)) > > + nr_pages = ARRAY_SIZE(frame_list); > > + > > + spin_lock_irqsave(&balloon_lock, flags); > > + > > + if (!is_memory_resource_reserved()) { > > + > > + /* > > + * Look for first unused memory region starting at page > > + * bound...

This series implements ballooning for Xen on ARM and builds and Mukesh''s PVH privcmd stuff to implement foreign page mapping on ARM, replacing the old "HACK: initial (very hacky) XENMAPSPACE_gmfn_foreign" patch. The baseline is a bit complex, it is basically Stefano''s xenarm-forlinus branch (commit bbd6eb29214e) merged with Konrad''s linux-next-pvh branch

...000'}}}, datalen = 0, samples = 320, mallocd = 1, mallocd_hdr_len = 1076, offset = 64, src = 0x51623b0 "func_jitterbuffer interpolation", data = {ptr = 0x0, uint32 = 0, pad = "\000\000\000\000\000\000\000"}, delivery = { tv_sec = 1436290187, tv_usec = 304285}, frame_list = {next = 0x0}, flags = 0, ts = 0, len = 0, seqno = 0} so datalen is 0 and samples nonzero. ast_frame_adjust_volume, however, iterates over samples, not datalen. Is that correct? What does it mean to have a packet with a zero datalen anyway?

...ending = 0}, datalen = 0, samples = 640, mallocd = 1, mallocd_hdr_len = 232, offset = 64, src = 0x2ac07413e7f8 "siren14tolin32", data = {ptr = 0x3cab9378, uint32 = 1017877368, pad = "x\223\253<\000\000\000"}, delivery = { tv_sec = 1491485582, tv_usec = 407272}, frame_list = {next = 0x0}, flags = 0, ts = 0, len = 0, seqno = 0} frame->data.ptr is an out-of-range address. Does this ring a bell to anybody? Without sources of the Siren14 codec, how would you recommend we debug this?

...ex a3dc75d..3101cf6 100644 --- a/drivers/xen/balloon.c +++ b/drivers/xen/balloon.c @@ -430,8 +430,13 @@ static enum bp_state decrease_reservation(unsigned long nr_pages, gfp_t gfp) /* No more mappings: invalidate P2M and add to balloon. */ for (i = 0; i < nr_pages; i++) { pfn = mfn_to_pfn(frame_list[i]); - __set_phys_to_machine(pfn, - pfn_to_mfn(page_to_pfn(__get_cpu_var(balloon_scratch_page)))); + if (!xen_feature(XENFEAT_auto_translated_physmap)) { + unsigned long p; + struct page *pg; + pg = __get_cpu_var(balloon_scratch_page); + p = page_to_pfn(pg); + __set_phys_to_machine(p...

...0}, datalen = 0, samples = 640, mallocd = 1, mallocd_hdr_len = 324, offset = 64, src = 0x2ad290064a08 "siren14tolin32/speex", data = {ptr = 0x80893318, uint32 = 2156475160, pad = "\030\063\211\200\000\000\000"}, delivery = { tv_sec = 1492000520, tv_usec = 225198}, frame_list = {next = 0x0}, flags = 0, ts = 0, len = 0, seqno = 0} Note that datalen is zero, but samples aren't. main/slinfactory.c near line 177 doesn't check for datalen of zero, but copies using samples. Fixed thusly: *** slinfactory.c.orig 2017-02-13 15:00:19.000000000 -0500 --- slinfactor...

We have implemented hugepage support for guests in following manner In our implementation we added a parameter hugepage_num which is specified in the config file of the DomU. It is the number of hugepages that the guest is guaranteed to receive whenever the kernel asks for hugepage by using its boot time parameter or reserving after booting (eg. Using echo XX > /proc/sys/vm/nr_hugepages).

...rivers/xen/balloon.c b/drivers/xen/balloon.c index db3aa34..92449a0 100644 --- a/drivers/xen/balloon.c +++ b/drivers/xen/balloon.c @@ -360,6 +360,7 @@ static enum bp_state increase_reservation(unsigned long nr_pages) if (!xen_feature(XENFEAT_auto_translated_physmap)) set_phys_to_machine(pfn, frame_list[i]); +#ifdef CONFIG_XEN_HAVE_PVMMU /* Link back into the page tables if not highmem. */ if (xen_pv_domain() && !PageHighMem(page) && !xen_feature(XENFEAT_auto_translated_physmap)) { @@ -371,6 +372,7 @@ static enum bp_state increase_reservation(unsigned long nr_pages)...

....status = GNTST_okay; for ( i = 0; i < op.nr_frames; i++ ) { - gmfn = gnttab_shared_gmfn(d, d->grant_table, i); + gmfn = gnttab_shared_gmfn(d, gt, i); /* Grant tables cannot be shared */ BUG_ON(SHARED_M2P(gmfn)); (void)copy_to_guest_offset(op.frame_list, i, &gmfn, 1); } out3: - spin_unlock(&d->grant_table->lock); + spin_unlock(&gt->lock); out2: rcu_unlock_domain(d); out1: @@ -1430,7 +1434,7 @@ gnttab_prepare_for_transfer( goto fail; } - if ( unlikely(ref >= nr_grant_entries(rd->...

...count(page, 1); } } diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c index 930fb68..c8aab4e 100644 --- a/drivers/xen/balloon.c +++ b/drivers/xen/balloon.c @@ -89,14 +89,6 @@ EXPORT_SYMBOL_GPL(balloon_stats); /* We increase/decrease in batches which fit in a page */ static xen_pfn_t frame_list[PAGE_SIZE / sizeof(unsigned long)]; -#ifdef CONFIG_HIGHMEM -#define inc_totalhigh_pages() (totalhigh_pages++) -#define dec_totalhigh_pages() (totalhigh_pages--) -#else -#define inc_totalhigh_pages() do {} while (0) -#define dec_totalhigh_pages() do {} while (0) -#endif - /* List of ballooned pag...

...count(page, 1); } } diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c index 930fb68..c8aab4e 100644 --- a/drivers/xen/balloon.c +++ b/drivers/xen/balloon.c @@ -89,14 +89,6 @@ EXPORT_SYMBOL_GPL(balloon_stats); /* We increase/decrease in batches which fit in a page */ static xen_pfn_t frame_list[PAGE_SIZE / sizeof(unsigned long)]; -#ifdef CONFIG_HIGHMEM -#define inc_totalhigh_pages() (totalhigh_pages++) -#define dec_totalhigh_pages() (totalhigh_pages--) -#else -#define inc_totalhigh_pages() do {} while (0) -#define dec_totalhigh_pages() do {} while (0) -#endif - /* List of ballooned pag...

...count(page, 1); } } diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c index 930fb68..c8aab4e 100644 --- a/drivers/xen/balloon.c +++ b/drivers/xen/balloon.c @@ -89,14 +89,6 @@ EXPORT_SYMBOL_GPL(balloon_stats); /* We increase/decrease in batches which fit in a page */ static xen_pfn_t frame_list[PAGE_SIZE / sizeof(unsigned long)]; -#ifdef CONFIG_HIGHMEM -#define inc_totalhigh_pages() (totalhigh_pages++) -#define dec_totalhigh_pages() (totalhigh_pages--) -#else -#define inc_totalhigh_pages() do {} while (0) -#define dec_totalhigh_pages() do {} while (0) -#endif - /* List of ballooned pag...

...nclude <public/xen.h> extern void * shared_page; extern grant_entry_t * grant_table; void offer_page() { uint16_t flags; /* create the grant table*/ gnttab_setup_table_t setup_op; setup_op.dom ＝DOMID＿SELF； setup_op.nr_frames = 1; setup_op.frame_list = grant_table; HYPERVISOR_grant_table_op(GNTTABOP_setup_table, &setup_op, 1); /*offer the grant */ grant_table[0].domid=DOMID_FRIEND; grant_table[0].frame = shared_page >>12; flgas = GTF_permit_access & GTF_reading & GTF_writing; grant_table[0].flags...

...Program received signal SIGSEGV, Segmentation fault. [Switching to Thread -1215390800 (LWP 8504)] 0x08082599 in __ast_read (chan=0x9a17458, dropaudio=0) at channel.c:2128 2128 if (AST_LIST_EMPTY(&chan->readq) || !AST_LIST_NEXT(AST_LIST_FIRST(&chan->readq), frame_list)) { -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20070403/8e3c6e10/attachment.htm

...'\000'}}}, datalen = 0, samples = 97009376, mallocd = 0, mallocd_hdr_len = 177, offset = 1, src = 0x7f7928f9a050 "\207", <incomplete sequence \350\200>, data = {ptr = 0x0, uint32 = 0, pad = "\000\000\000\000\000\000\000"}, delivery = {tv_sec = 0, tv_usec = 0}, frame_list = {next = 0x0}, flags = 0, ts = 0, len = 0, seqno = 0}, offset = "\000\000\000\000\000\000\000\000\310\314\335\005\000\000\000\000\310\314\335\005", '\000' <repeats 20 times>, "`\177\316\005\000\000\000\000\377\377\000\000\001\000\000\000\000\000\000\000\000\000\000...