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* tools/build: Introduce {PREPEND,APPEND}_{LIB,INCLUDES}Roger Pau Monne2011-11-141-3/+3
| | | | | | | | | | | | | | | | | | | | | | | Create two new variables called APPEND_ and PREPEND_ to add compile flags at the beginning or at the end of the search path. Added a new semantic for user defined compile flags, here is the list of possible options: PREPEND_LIB: add libraries to the search path before xen (before xen installation folders). PREPEND_INCLUDES: add headers to the search path before xen (before xen installation folders). APPEND_LIB: add libraries to the search path at the end (after all xen installation folders have been added). APPEND_INCLUDES: add libraries to the search path at the end (after all xen installation folders have been added). EXTRA_INCLUDES and EXTRA_LIB can still be used, and they will have the same effect as PREPEND_INCLUDES and PREPEND_LIB. Signed-off-by: Roger Pau Monne <roger.pau@entel.upc.edu> Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
* xen: provide pse36 cpuid bitTim Deegan2011-11-031-3/+7
| | | | | | | | | | | Provide pse36 cpuid bit if guest runs in 32bit PAE or in long mode. Hyper-V refuses to start as the "cpu does not provide required hw features" if it does not find the pse36 cpuid bits. Signed-off-by: Christoph Egger <Christoph.Egger@amd.com> Acked-by: Tim Deegan <tim@xen.org> Committed-by: Tim Deegan <tim@xen.org>
* x86 pm: provide CC7/PC2 residencyYang Zhang2011-10-252-0/+4
| | | | | | | | | Sandy bridge introduces new MSR to get cc7/pc2 residency (core C-state 7/package C-state 2). Print the cc7/pc2 residency when on sandy bridge platform. Signed-off-by: Yang Zhang <yang.z.zhang@intel.com> Committed-by: Keir Fraser <keir@xen.org>
* libxc: osdep: report missing backends in common codeIan Campbell2011-10-133-6/+16
| | | | | | | | | | | Backends were inconsistent about reporting and it's a pain to edit them all when adding a new class of osdep. Signed-off-by: Ian Campbell <Ian.campbell@citrix.com> Acked-by: Ian Jackson <ian.jackson.citrix.com> Committed-by: Ian Jackson <ian.jackson.citrix.com> --- Requires Daniel De Graaf's "libxc: add xc_gntshr_* functions"
* libxc: add xc_gntshr_* functionsDaniel De Graaf2011-10-065-0/+200
| | | | | | | | | These functions and the xc_gntshr device (/dev/xen/gntalloc on linux) allow applications to create pages shared with other domains. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Acked-by: Ian Campbell <ian.campbell@citrix.com> Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
* libxc: add xc_gnttab_map_grant_ref_notifyDaniel De Graaf2011-10-065-120/+115
| | | | | | | | | | | | | | | Normally, when a userspace process mapping a grant crashes, the domain providing the reference receives no indication that its peer has crashed, possibly leading to unexpected freezes or timeouts. This function provides a notification of the unmap by signalling an event channel and/or clearing a specific byte in the page. This also unifies the 3 very similar grant-mapping osdep interfaces into a single function instead of introducing yet another minor variation. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Committed-by: Ian Jackson <ian.jackson@eu.citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
* xenpaging: track number of paged pages in struct domainOlaf Hering2011-09-262-0/+2
| | | | | | | | | | | | | | | The toolstack should know how many pages are paged-out at a given point in time so it could make smarter decisions about how many pages should be paged or ballooned. Add a new member to xen_domctl_getdomaininfo and bump interface version. Use the new member in xc_dominfo_t. The SONAME of libxc should be changed if this patch gets applied. Signed-off-by: Olaf Hering <olaf@aepfle.de> Acked-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Tim Deegan <tim@xen.org> Committed-by: Tim Deegan <tim@xen.org>
* PCI multi-seg: adjust domctl interfaceJan Beulich2011-09-221-8/+8
| | | | | | | Again, a couple of directly related functions at once get adjusted to account for the segment number. Signed-off-by: Jan Beulich <jbeulich@suse.com>
* mem_event: use different ringbuffers for share, paging and accessOlaf Hering2011-09-166-37/+59
| | | | | | | | | | | | | | | | | | | | | | | Up to now a single ring buffer was used for mem_share, xenpaging and xen-access. Each helper would have to cooperate and pull only its own requests from the ring. Unfortunately this was not implemented. And even if it was, it would make the whole concept fragile because a crash or early exit of one helper would stall the others. What happend up to now is that active xenpaging + memory_sharing would push memsharing requests in the buffer. xenpaging is not prepared for such requests. This patch creates an independet ring buffer for mem_share, xenpaging and xen-access and adds also new functions to enable xenpaging and xen-access. The xc_mem_event_enable/xc_mem_event_disable functions will be removed. The various XEN_DOMCTL_MEM_EVENT_* macros were cleaned up. Due to the removal the API changed, so the SONAME will be changed too. Signed-off-by: Olaf Hering <olaf@aepfle.de> Acked-by: Tim Deegan <tim@xen.org> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> Committed-by: Tim Deegan <tim@xen.org>
* libxc: Enable cpuid performance counter leaf for HVMJuergen Gross2011-09-151-0/+1
| | | | | | | | In HVM domains the usable performance counters can be checked automatically only, if cpuid leaf 0x0000000a is accessible. Signed-off-by: Juergen Gross <juergen.gross@ts.fujitsu.com> Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
* add privileged (dom0) kernel feature indicationJan Beulich2011-07-231-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | With our switching away from supporting 32-bit Dom0 operation, users complained that attempts (perhaps due to lack of knowledge of that change) to boot the no longer privileged kernel in Dom0 resulted in apparently silent failure. To make the mismatch explicit and visible, add dom0 feature flag that the kernel can set to indicate operation as dom0 is supported. Due to the way elf_xen_parse_features() worked up to now (getting fixed here), adding features indications to the old, string based ELF note would make the respective kernel unusable on older hypervisors. For that reason, a new ELF Note is being introduced that allows specifying supported features as a bit array instead (with features unknown to the hypervisor simply ignored, as now also done by elf_xen_parse_features(), whereas here unknown kernel-required features still keep the kernel [and hence VM] from booting). Introduce and use elf_note_numeric_array() to be forward compatible (or else an old hypervisor wouldn't be able to parse kernel specified features occupying more than 64 bits - thanks, Ian!). Signed-off-by: Jan Beulich <jbeulich@novell.com>
* nestedsvm: Support TSC Rate MSRChristoph Egger2011-07-161-1/+1
| | | | | | | | | | | | | | | | | | | | Support TSC Rate MSR and enable TSC scaling for nested virtualization. With it, guest VMs don't need take #VMEXIT to calculate a translated TSC value when it is running under TSC emulation mode. I measured native performance of the rdtsc instruction in the l2 guest with xen-on-xen and both host and and l1 guest run under TSC emulation mode. TSC scaling just needs MSR emulation and correct tsc offset calculation to be done and thus can be emulated also on older hardware. In this case rdtsc instruction is intercepted and handled by the host directly and safes the cost of a full VMRUN/VMEXIT emulation cycle. Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>
* libxc: remove obsolete comment.Ian Campbell2011-07-161-4/+0
| | | | | | Seems to predate Xen 3.0... Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
* xen/libxc: Clean up pv_cpuid switch statements.Keir Fraser2011-07-161-5/+5
| | | | Signed-off-by: Keir Fraser <keir@xen.org>
* xen/libxc: set CPUID topology leaf as unsupported for PV guestsDavid Vrabel2011-07-161-0/+1
| | | | | | | | | | | | | | | The result of a CPUID Extended Topology Enumeration leaf for PV guests is invalid as the level in ECX is ignored. This can cause some guests to loop endlessly when trying to enumerate the topology. Since the physical topology isn't useful to PV guests set the topology leaf as unsupported. Guests affected include Linux kernels prior 2.6.32 where a workaround was applied ("xen: mask extended topology info in cpu", 82d6469916c6fcfa345636a49004c9d1753905d1). Signed-off-by: David Vrabel <david.vrabel@citrix.com>
* Revert 23664:3e3c0a8be9f9Keir Fraser2011-07-081-9/+0
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* add privileged/unprivileged kernel feature indicationJan Beulich2011-07-081-0/+9
| | | | | | | | | | | | | With our switching away from supporting 32-bit Dom0 operation, users complained that attempts (perhaps due to lack of knowledge of that change) to boot the no longer privileged kernel in Dom0 resulted in apparently silent failure. To make the mismatch explicit and visible, add feature flags that the kernel can set to indicate operation in what modes it supports. For backward compatibility, absence of both feature flags is taken to indicate a kernel that may be capable of operating in both modes. Signed-off-by: Jan Beulich <jbeulich@novell.com>
* libxc: Squash xc_e820.h (and delete) into xenctrl.hKonrad Rzeszutek Wilk2011-06-284-42/+17
| | | | | | | | | | | | | | .. as there is no need to keep that internal header file anymore. We export two functions xc_domain_[set|get]_memory_map which depend on the 'struct e820entry' defined in 'xc_e820.h'. We move the contents of the 'xc_e820.h' to the 'xenctrl.h' fixing compiler errors when applications outside the Xen tree are trying to compile against the libraries. Tested-by: Daniel Castro <evil.dani@gmail.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
* tools: merge several bitop functions into xc_bitops.hOlaf Hering2011-06-105-108/+78
| | | | | | | | | | | | | | | | | | | | | | | | Bitmaps are used in save/restore, xenpaging and blktap2. Merge the code into a private xc_bitops.h file. All users are single threaded, so locking is not an issue. The array of bits is handled as volatile because the x86 save/restore code passes the bitmap to the hypervisor which in turn modifies the bitmap. blktap2 uses a private bitmap. There was a possible overflow in the bitmap_size() function, the remainder was not considered. ia64 save/restore uses a bitmap to send the number of vcpus to the host. x86 save/restore uses a bitmap to track dirty pages. This bitmap is shared with the hypervisor. An unused function count_bits() was removed and a new bitmap_size() function is now used. xenpaging uses 3 private bitmaps to track the gfns which are in paged-out state. It had a copy of some Linux bitops.h, which is now obsolete. Also the BITS_PER_LONG macro was hardcoded to 64 which made it impossible to run 32bit tools on a 64bit host. Wether this works at all has to be tested, yet. Signed-off-by: Olaf Hering <olaf@aepfle.de> Committed-by: Ian Jackson <ian.jackson.citrix.com>
* Enable RDWRGSFS feature support for HVM guestsYang, Wei2011-06-151-1/+2
| | | | | | | Write/read FS/GS base instructions enable user level code to read/write FS & GS segment base registers for thread local storage. Signed-off-by: Yang, Wei <wei.y.yang@intel.com>
* x86: Pass through ERMS CPUID feature for HVM and PV guestsYang, Wei2011-06-142-2/+5
| | | | | | | | | This patch exposes ERMS feature to HVM and PV guests. The REP MOVSB/STOSB instruction can enhance fast strings attempts to move as much of the data with larger size load/stores as possible. Signed-off-by: Yang, Wei <wei.y.yang@intel.com>
* x86/hvm: Make DRNG feature visible in CPUIDYang, Wei2011-06-142-0/+2
| | | | | | | | | This patch exposes DRNG feature to HVM guests. The RDRAND instruction can provide software with sequences of random numbers generated from white noise. Signed-off-by: Yang, Wei <wei.y.yang@intel.com>
* x86/hvm: add SMEP support to HVM guestTim Deegan2011-06-062-0/+9
| | | | | | | | | | | | | | | Intel new CPU supports SMEP (Supervisor Mode Execution Protection). SMEP prevents software operating with CPL < 3 (supervisor mode) from fetching instructions from any linear address with a valid translation for which the U/S flag (bit 2) is 1 in every paging-structure entry controlling the translation for the linear address. This patch adds SMEP support to HVM guest. Signed-off-by: Yang Wei <wei.y.yang@intel.com> Signed-off-by: Shan Haitao <haitao.shan@intel.com> Signed-off-by: Li Xin <xin.li@intel.com> Signed-off-by: Tim Deegan <Tim.Deegan@citrix.com>
* nestedsvm: Support DecodeassistChristoph Egger2011-06-081-1/+2
| | | | | | Offer l1 guest to use decode assist if available in hardware. Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>
* libxc: Don't refer to meaningless 'word offsets' in xc_cpufeature.hKeir Fraser2011-06-031-6/+6
| | | | Signed-off-by: Keir Fraser <keir@xen.org>
* libxc: Simplify and clean up xc_cpufeature.hKeir Fraser2011-06-022-117/+98
| | | | | | | | * Remove Linux-private defns with no direct relation to CPUID * Remove word offsets into Linux-defined cpu_caps array * Hard tabs -> soft tabs Signed-off-by: Keir Fraser <keir@xen.org>
* x86: Hide CPUID leaf 7 from PV guests.Keir Fraser2011-06-022-1/+12
| | | | | | Except for the whitelisted FSGSBASE feature. Signed-off-by: Keir Fraser <keir@xen.org>
* tools: Introduce "allocate-only" page type for migrationGeorge Dunlap2011-05-262-21/+31
| | | | | | | | | | | | | | | | | | To detect presence of superpages on the receiver side, we need to have strings of sequential pfns sent across on the first iteration through the memory. However, as we go through the memory, more and more of it will be marked dirty, making it wasteful to send those pages. This patch introduces a new PFINFO type, "XALLOC". Like PFINFO_XTAB, it indicates that there is no corresponding page present in the subsquent page buffer. However, unlike PFINFO_XTAB, it contains a pfn which should be allocated. This new type is only used for migration; but it's placed in xen/public/domctl.h so that the value isn't reused. Signed-off-by: George Dunlap <george.dunlap@eu.citrix.com> Committed-by: Ian Jackson <ian.jackson.citrix.com>
* tools: Save superpages in the same batch, to make detection easierGeorge Dunlap2011-05-261-0/+12
| | | | | | | | | | | On the first time through (when pfns are mostly allocated on the receiving side), try to keep superpages together in the same batch by ending a batch early if we see the first page of a potential superpage and there isn't enough room in the batch for a full superpage. Signed-off-by: George Dunlap <george.dunlap@eu.citrix.com> Committed-by: Ian Jackson <ian.jackson.citrix.com>
* tools: libxc: Detect superpages on domain restoreGeorge Dunlap2011-05-261-16/+106
| | | | | | | | | | | | When receiving pages, look for contiguous 2-meg aligned regions and attempt to allocate a superpage for that region, falling back to 4k pages if the allocation fails. (Minor conflict fixed up. -iwj) Signed-off-by: George Dunlap <george.dunlap@eu.citrix.com> Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com> Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
* Rename inj_msi -> inject_msiKeir Fraser2011-05-261-3/+3
| | | | Signed-off-by: Keir Fraser <keir@xen.org>
* libxc: add new operation in HVMOP to deliver emulated MSI.Wei Liu2011-05-262-0/+31
| | | | Signed-off-by: Wei Liu <liuw@liuw.name>
* libxc: xc_domain_set_memory_map, xc_get_machine_memory_map (x86, amd64 only)Konrad Rzeszutek Wilk2011-05-263-17/+58
| | | | | | | | | | Add these two functions. The later retrieves the E820 as seen by the hypervisor (completely unchanged) and the second call sets the E820 for the specified guest. Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
* tools: libxc: allow HVM firmware to be loaded at an arbitrary alignmentIan Campbell2011-05-241-7/+5
| | | | | | | Enables direct loading of e.g. seabios.elf. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
* tools: libxc: enable libelf logging for HVM domain builder.Ian Campbell2011-05-241-0/+3
| | | | | | 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: save: move static stats variable to stack variable.Ian Campbell2011-05-241-13/+14
| | | | | | Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Ian Jackson <ian.jackson.citrix.com> Committed-by: Ian Jackson <ian.jackson.citrix.com>
* libxc: save: don't bother calculating stat's deltas unless we are going to ↵Ian Campbell2011-05-241-10/+12
| | | | | | | | print them Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Ian Jackson <ian.jackson.citrix.com> Committed-by: Ian Jackson <ian.jackson.citrix.com>
* libxc: save: encapsulate time stats in a structIan Campbell2011-05-241-17/+18
| | | | | | | | As a precursor to making non-static. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Ian Jackson <ian.jackson.citrix.com> Committed-by: Ian Jackson <ian.jackson.citrix.com>
* libxc: save: move static "write_count" variable into outbuf.Ian Campbell2011-05-241-5/+6
| | | | | | Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Ian Jackson <ian.jackson.citrix.com> Committed-by: Ian Jackson <ian.jackson.citrix.com>
* libxc: save: noncached write doesn't use live parameter.Ian Campbell2011-05-241-7/+7
| | | | | | | | so drop it. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Ian Jackson <ian.jackson.citrix.com> Committed-by: Ian Jackson <ian.jackson.citrix.com>
* libxc: save: rename ratewrite to uncached.Ian Campbell2011-05-241-3/+3
| | | | | | | | It doesn't do any ratelimiting... Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Ian Jackson <ian.jackson.citrix.com> Committed-by: Ian Jackson <ian.jackson.citrix.com>
* libxc: save: drop code under ADAPTIVE_SAVE ifdef.Ian Campbell2011-05-241-110/+2
| | | | | | | | | | The ifdef was added in 2005 (7702:b3c2bc39d815) but, as far as I can see, was never enabled by default. Dropping it will help untangle some macros redefining functions etc. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Ian Jackson <ian.jackson.citrix.com> Committed-by: Ian Jackson <ian.jackson.citrix.com>
* libxc: save/restore: remove static context variablesIan Campbell2011-05-242-13/+8
| | | | | | | | | | | | | | 20544:ad9d75d74bd5 and 20545:cc7d66ba0dad seemingly intended to change these global static variables into stack variables but didn't remove the static qualifier. Also zero the entire struct once with memset rather than clearing fields piecemeal in two different places. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Ian Jackson <ian.jackson.citrix.com> Committed-by: Ian Jackson <ian.jackson.citrix.com> Acked-by: Vincent Hanquez <vincent.hanquez@eu.citrix.com>
* libxc: obtain correct length of p2m during core dumpingMarkus Gross2011-05-241-2/+1
| | | | | | | | | | | | | | | | | | | | | | while implementing core dumping functionality for the libxl driver of libvirt, I discovered an issue with mapping pages of a pv guest. After dumping the core of a pv guest the domain was not cleared up properly and some pages were not unmapped. This issue is similar to the one reported here: http://lists.xensource.com/archives/html/xen-devel/2011-05/msg01314.html In xc_domain_dumpcore_via_callback in the file xc_core.c the function xc_core_arch_map_p2m is called to map P2M_FL_ENTRIES pages to the variable p2m. But to unmap the pages later, the dinfo->p2m_size has to be set accordingly. This was not done, instead a variable named p2m_size was set. This way P2M_FL_ENTRIES was always zero and the pages were left mapped. [ This change should be considered for backport to relevant trees. ] Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
* libxc: after saving, unmap correct amount for live_m2pJim Fehlig2011-05-241-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With some help from Olaf, I've finally got to the bottom of an issue I came across while trying to implement save/restore in the libvirt libxenlight driver. After issuing the save operation, the saved domain was not being cleaned up properly and left in this state from xl's perspective xen33:# xl list Name ID Mem VCPUs State Time(s) Domain-0 0 6821 8 r----- 122.5 (null) 2 2 2 --pssd 10.8 Checking the libvirtd /proc/$pid/maps I found this 7f3798984000-7f3798b86000 r--s 00002000 00:03 4026532097 /proc/xen/privcmd So not all all pages belonging to the domain were unmapped from libvirtd. In tools/libxc/xc_domain_save.c we found that P2M_FL_ENTRIES were being mapped but only P2M_FLL_ENTRIES were being unmapped. The attached patch changes the unmapping to use the same P2M_FL_ENTRIES macro. I'm not too familiar with this code though so posting here for review. I suspect this was not noticed before since most (all?) processes doing save terminate after the save and are not long-running like libvirtd. Ian Campbell writes: > Looks like I introduced this in 18558:ccf0205255e1, sorry! > > I guess it is also wrong in the error path out of map_and_save_p2m_table > and so we also need [another hunk]. This change should be backported to relevant earlier trees. -iwj From: Jim Fehlig <jfehlig@novell.com> From: Ian Campbell <Ian.Campbell@citrix.com> Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com> Cc: Olaf Hering <olaf@aepfle.de> Acked-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>
* gcc-4.6 compile fix: tools/libxc/xc_domain_restore.cOlaf Hering2011-05-201-2/+0
| | | | | | | | xc_domain_restore.c: In function 'xc_domain_restore': xc_domain_restore.c:1090:18: error: variable 'prev_pc' set but not used [-Werror=unused-but-set-variable] Signed-off-by: Olaf Hering <olaf@aepfle.de>
* gcc-4.6 compile fix: tools/libxc/xc_tmem.cOlaf Hering2011-05-201-2/+1
| | | | | | | | xc_tmem.c: In function 'xc_tmem_restore': xc_tmem.c:393:14: error: variable 'save_max_pools' set but not used [-Werror=unused-but-set-variable] Signed-off-by: Olaf Hering <olaf@aepfle.de>
* libxc: [CVE-2011-1583] pv kernel image validationIan Jackson2011-05-091-44/+95
| | | | | | | | | | | | | | | | | | | | | | The functions which interpret the kernel image supplied for a paravirtualised guest, and decompress it into memory when booting the domain, are incautious. Specifically: (i) Integer overflow in the decompression loop memory allocator might result in overrunning the buffer used for the decompressed image; (ii) Integer overflows and lack of checking of certain length fields can result in the loader reading its own address space beyond the size of the supplied kernel image file. (iii) Lack of error checking in the decompression loop can lead to an infinite loop. This patch fixes these problems. CVE-2011-1583. Signed-off-by: Ian Campbell <Ian.Campbell@eu.citrix.com> Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com> Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
* x86/LWP: export LWP related CPUID to AMD SVM guestWei Huang2011-05-091-2/+4
| | | | | | This patch exposes LWP CPUID 0x8000001C to SVM guests. Signed-off-by: Wei Huang <wei.huang2@amd.com>
* libxc: Fill in XSAVE-related CPUID leaves for PV guests.Keir Fraser2011-04-251-4/+10
| | | | Signed-off-by: Keir Fraser <keir@xen.org>
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