search for: page_to_mfn

.... + * + * Coverity Scan doesn''t pick up modifications automatically. The model file + * must be uploaded by an admin in the analysis. + */ + +/* Definitions */ +#define NULL (void *)0 +#define PAGE_SIZE 4096UL +#define PAGE_MASK (~(PAGE_SIZE-1)) + +#define assert(cond) /* empty */ +#define page_to_mfn(p) (unsigned long)(p) + +struct page_info {}; + +/* + * map_domain_page() takes an existing domain page and possibly maps it into + * the Xen pagetables, to allow for direct access. Model this as a memory + * allocation of exactly 1 page. + * + * map_domain_page() never fails (It will BUG() before...

...eing it to the buddy allocator. + */ +#define MAX_ORDER_ALIGNED (1UL << (MAX_ORDER)) void init_heap_pages( unsigned int zone, struct page_info *pg, unsigned long nr_pages) { + unsigned int nid_curr,nid_prev; unsigned long i; ASSERT(zone < NR_ZONES); + if ( likely(page_to_mfn(pg) != 0) ) + nid_prev = phys_to_nid(page_to_maddr(pg-1)); + else + nid_prev = phys_to_nid(page_to_maddr(pg)); + for ( i = 0; i < nr_pages; i++ ) - free_heap_pages(zone, pg+i, 0); -} - + { + nid_curr = phys_to_nid(page_to_maddr(pg+i)); + + /* +...

This patch series restores the use of superpages when restoring or migrating a VM, while retaining efficient batching of 4k pages when superpages are not appropriate or available. Signed-off-by: George Dunlap <george.dunlap@eu.citrix.com> _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

...v_32bit_domain(d) && (bytes == 4) && (addr & 4) && !do_cmpxchg && @@ -3270,7 +3271,7 @@ static int ptwr_emulated_update( adjust_guest_l1e(nl1e, d); /* Checked successfully: do the update (write or cmpxchg). */ - pl1e = map_domain_page(page_to_mfn(page)); + pl1e = map_domain_page(mfn); pl1e = (l1_pgentry_t *)((unsigned long)pl1e + (addr & ~PAGE_MASK)); if ( do_cmpxchg ) { @@ -3285,21 +3286,21 @@ static int ptwr_emulated_update( if ( !okay ) { unmap_domain_page(pl1e); - put_page_...

Hi, V6: The only change from V5 is in patch #6: - changed comment to reflect autoxlate - removed a redundant ASSERT - reworked logic a bit so that get_page_from_gfn() is called with NULL for p2m type as before. arm has ASSERT wanting it to be NULL. Tim: patch 4 needs your approval. Daniel: patch 5 needs your approval. These patches implement PVH dom0. Patches 1 and 2

...u64 *vaddr; unsigned long mfn; - pg = alloc_domheap_page(NULL, 0); + if (d == NULL) + { + pg = alloc_domheap_page(NULL, 0); + } + else + { + pg = alloc_domheap_page(NULL, MEMF_node(domain_to_node(d))); + } + if ( !pg ) return 0; mfn = page_to_mfn(pg); _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

These two patches were originally part of the XSM series that I have posted, and remain prerequisites for that series. However, they are independent of the XSM changes and are a useful simplification regardless of the use of XSM. The Acked-bys on these patches were provided before rebasing them over the copyback changes in 26268:1b72138bddda, which had minor conflicts that I resolved. [PATCH

...> MAX_DIRTY_BITMAP_PAGES ); + + for ( i = 0; i < nr_pages; ++i ) + { + struct page_info *page; + page = alloc_domheap_page(NULL, 0); + if ( page == NULL ) + goto cleanup_on_failure; + + d->arch.dirty.bitmap[i] = map_domain_page_global(__page_to_mfn(page)); + clear_page(d->arch.dirty.bitmap[i]); + } + + d->arch.dirty.bitmap_pages = nr_pages; + return 0; + +cleanup_on_failure: + nr_pages = i; + for ( i = 0; i < nr_pages; ++i ) + { + unmap_domain_page_global(d->arch.dirty.bitmap[i]); + }...

This patch series tidies up a few bits ofthe nested p2m code. The main thing it does is reorganize the locking so that most of the changes to nested p2m tables happen only under the p2m lock, and the nestedp2m lock is only needed to reassign p2m tables to new cr3 values. Changes since v1: - a few minor fixes - more sensible flushing policy in p2m_get_nestedp2m() - smoke-tested this time!

ging_prep ensures that an mfn is backing the paged-out gfn, and transitions to the next state in the paging state machine for this page. Foreign mappings of the gfn will now succeed. This is the key idea, as it allows the pager to now map the gfn and fill in its contents. Unfortunately, it also allows any other foreign mapper to map the gfn and read its contents. This is particularly dangerous

George has release acked all of these. Otherwise mostly minor updates this time around. Summary: A == acked, M == modified A xen: arm64: Add 8250 earlyprintk support A xen: arm64: Add Basic Platform support for APM X-Gene Storm. A xen: arm64: Add APM implementor id to processor implementers. M xen: arm: add a quirk to handle platforms with unusual GIC layout A xen: arm: allow platform

Hi all, this small patch series implement guest SMP support for ARM, using the ARM PSCI interface for secondary cpu bringup. Stefano Stabellini (4): xen/arm: basic PSCI support, implement cpu_on xen/arm: support for guest SGI xen/arm: support vcpu_op hypercalls xen: move VCPUOP_register_vcpu_info to common code xen/arch/arm/domain.c | 66 ++++++++++++++++++++++++

I''m afraid this series is rather a grab bag and it is distressingly large at this stage. With this series I can boot an Xgene board until it fails to find its SATA controller. This is a dom0 issue for which patches are pending from APM (/me nudges Anup). As well as the APM specific platform stuff there are also some generic improvements which were either necessary or useful during this

Hello everyone, this is the fourth version of the patch series that introduces ARMv7 with virtualization extensions support in Xen. The series allows Xen and Dom0 to boot on a Cortex-A15 based Versatile Express simulator. See the following announce email for more informations about what we are trying to achieve, as well as the original git history: See

Hello everyone, this is the very first version of the patch series that introduces ARMv7 with virtualization extensions support in Xen. The series allows Xen and Dom0 to boot on a Cortex-A15 based Versatile Express simulator. See the following announce email for more informations about what we are trying to achieve, as well as the original git history: See

This patch series is a reworking of a series developed by Mukesh Rathor at Oracle. The entirety of the design and development was done by him; I have only reworked, reorganized, and simplified things in a way that I think makes more sense. The vast majority of the credit for this effort therefore goes to him. This version is labelled v13 because it is based on his most recent series, v11.