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* libxc: remove dependency on xenstore headers.Ian Campbell2011-03-211-1/+0
| | | | | | | | xc_offline_page doesn't really need xs.h. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
* libxc: finalise transition to hypercall buffers.Ian Campbell2010-10-221-3/+3
| | | | | | | | | | | | | | | | | | | | | Rename xc_set_xen_guest_handle to set_xen_guest_handle[0] and remove now unused functions: - xc_memalign - lock_pages - unlock_pages - hcall_buf_prep - hcall_buf_release [0] sed -i -e 's/xc_set_xen_guest_handle/set_xen_guest_handle/g' \ tools/libxc/*.[ch] \ tools/python/xen/lowlevel/xc/xc.c \ tools/python/xen/lowlevel/acm/acm.c \ tools/libxc/ia64/xc_ia64_stubs.c \ tools/security/secpol_tool.c \ tools/misc/xenpm.c Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Ian Jackson <ian.jackson.citrix.com>
* libxc: switch page offlining interfaces to hypercall buffersIan Campbell2010-10-221-9/+1
| | | | | | | | There is no need to lock/bounce minfo->pfn_type in init_mem_info since xc_get_pfn_type_batch() will take care of that for us. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Ian Jackson <ian.jackson.citrix.com>
* libxc: convert sysctl interfaces over to hypercall buffersIan Campbell2010-10-221-12/+15
| | | | | Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Ian Jackson <ian.jackson.citrix.com>
* libxc: add xc_maximum_ram_page to wrap XENMEM_maximum_ram_pageIan Campbell2010-10-181-1/+1
| | | | | Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
* libxc: add xc_domain_memory_exchange_pages to wrap XENMEM_exchangeIan Campbell2010-10-181-30/+3
| | | | | | | Generalised from exchange_page in xc_offline_page.c Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
* libxc: pass an xc_interface handle to page locking functionsIan Campbell2010-10-181-8/+8
| | | | | | | | | Not actually used here but useful to confirm that a handle is passed down to each location where it will be required once we switch to hypercall buffers. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
* # HG changeset patchIan Campbell2010-08-241-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | | # User Ian Campbell <ian.campbell@citrix.com> # Date 1282671421 -3600 # Node ID d1dd29a470ef1b9d2c77478a123326036dfe90bb # Parent d7a4adad9c328decbd384d87b23001aea8951b86 tools/libxc, tools/libelf: Relicense under LGPL v2.1 Relicense these two libraries under LGPL v2.1 only except where individual files already included the "or later" provision. Copyright holders have been contacted by Stephen Spector and have all agreed this change. Removed tools/libxc/ia64/aclinux.h since it appeared to be unused. There is a separate, more up to date, copy in xen/include/acpi/platform/aclinux.h which does appear to be used. Clarify the license of MiniOS privcmd.h under the same terms as other tools/include/xen-sys headers. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Stephen Spector <stephen.spector@citrix.com> Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
* libxc: eliminate static variables, use xentoollog; API changeKeir Fraser2010-05-281-54/+57
| | | | | | | | | | | | | | | | | | | | This patch eliminate the global variables in libxenctrl (used for logging and error reporting). Instead the information which was in the global variables is now in a new xc_interface* opaque structure, which xc_interface open returns instead of the raw file descriptor; furthermore, logging is done via xentoollog. There are three new parameters to xc_interface_open to control the logging, but existing callers can just pass "0" for all three to get the old behaviour. All libxc callers have been adjusted accordingly. Also update QEMU_TAG for corresponding qemu change. Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
* x86: add and use XEN_DOMCTL_getpageframeinfo3Keir Fraser2010-01-131-7/+8
| | | | | | | | | | | | | | | | | | To support wider than 28-bit MFNs, add XEN_DOMCTL_getpageframeinfo3 (with the type replacing the passed in MFN rather than getting or-ed into it) to properly back xc_get_pfn_type_batch(). With xc_get_pfn_type_batch() only used internally to libxc, move its prototype from xenctrl.h to xc_private.h. This also fixes a couple of bugs in pre-existing code: - the failure path for init_mem_info() leaked minfo->pfn_type, - one error path of the XEN_DOMCTL_getpageframeinfo2 handler used put_domain() where rcu_unlock_domain() was meant, and - the XEN_DOMCTL_getpageframeinfo2 handler could call xsm_getpageframeinfo() with an invalid struct page_info pointer. Signed-off-by: Jan Beulich <jbeulich@novell.com>
* libxc: create a domain_info_context structure to store guest_width and ↵Keir Fraser2009-12-011-5/+5
| | | | | | | | p2m_size for macros. Macro now refers to guest_width and p2m_size through a dinfo pointer. Signed-off-by: Vincent Hanquez <vincent.hanquez@eu.citrix.com>
* libxenctrl: Build fix after gnttab_v2 changes.Keir Fraser2009-10-071-7/+7
| | | | Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
* Introduce a grant_entry_v2 structure.Keir Fraser2009-10-071-10/+35
| | | | Signed-off-by: Steven Smith <steven.smith@citrix.com>
* Rename the struct grant_entry to struct grant_entry_v1, so that itKeir Fraser2009-10-071-3/+3
| | | | | | isn't in the way when we introduce struct grant_entry_v2. Signed-off-by: Steven Smith <steven.smith@citrix.com>
* libxc: Fix bugs in xc_exchange_page: pfn_type indexed by gpfn.Keir Fraser2009-07-021-2/+2
| | | | Signed-off-by: Jiang, Yunhong <yunhong.jiang@intel.com>
* libxc: Exchange a page for PV guestKeir Fraser2009-06-011-0/+664
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch support exchange a page for a suspended PV guest from user space. The basic idea to offline a page is: 1) mark a page offline pending 2) If the page is owned by a HVM domain, user have to live migrate it. In future, with stub-domain support, we can also exchange the page without migration. 3) If the page is owned by a PV domain, we will try to exchange the offline pending page to a new one and free the old page. This patch achieves item 3. The method to exchange the offline pending page for PV domain is: 1) Suspend the guest. 2) If the page is being granted out, return with offline pending. 3) Get a copy for the content 4) Scan all page table page to see if any reference to the offending page, if yes, make the entry to be non-present to reduce the reference count. 5) After update all page tables, user space tools will try to exchange the old page. If the new mfn has no reference anymore (i.e. count_info & count_mask =3D 1), the exchange will allocate a new page, update the m2p and return success, otherwise it will return fail. 6) If step 5 is success, user space tools will update the content of the new page change the p2m table, and change all entries scaned in step 4 to point to new entry. if step failed, it will try to undo step 4 to revert page table. 7) Resume the guest. Please refer to thread in http://www.mailinglistarchive.com/xen-devel@lists.xensource.com/msg63084.html for more information. Signed-off-by: Jiang, Yunhong <yunhong.jiang@intel.com>
* Export page offline hypercalls to user space tools.Keir Fraser2009-06-011-0/+100
Signed-off-by: Jiang, Yunhong <yunhong.jiang@intel.com>
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