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* hypervisor/xen/tools: Remove the XENMEM_get_oustanding_pages and provide the ↵Konrad Rzeszutek Wilk2013-05-141-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | data via xc_phys_info During the review of the patches it was noticed that there exists a race wherein the 'free_memory' value consists of information from two hypercalls. That is the XEN_SYSCTL_physinfo and XENMEM_get_outstanding_pages. The free memory the host has available for guest is the difference between the 'free_pages' (from XEN_SYSCTL_physinfo) and 'outstanding_pages'. As they are two hypercalls many things can happen in between the execution of them. This patch resolves this by eliminating the XENMEM_get_outstanding_pages hypercall and providing the free_pages and outstanding_pages information via the xc_phys_info structure. It also removes the XSM hooks and adds locking as needed. Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Reviewed-by: Tim Deegan <tim@xen.org> Acked-by: Keir Fraser <keir.xen@gmail.com>
* arm: remove rcu_lock_target_domain_by_id usersDaniel De Graaf2013-05-071-0/+3
| | | | | | | | | | This function has been replaced with rcu_lock_domain_by_any_id and an XSM check. Two callers already had an XSM check; add a check to the third. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Acked-by: George Dunlap <george.dunlap@eu.citrix.com> (for 4.3 release) Acked-by: Ian Campbell <ian.campbell@citrix.com> (for thae ARM bits)
* xsm: add hooks for claimDaniel De Graaf2013-05-071-0/+2
| | | | | | | | | | | Adds XSM hooks for the recently introduced XENMEM_claim_pages and XENMEM_get_outstanding_pages operations, and adds FLASK access vectors for them. This makes the access control decisions for these operations match those in the rest of the hypervisor. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Acked-by: George Dunlap <george.dunlap@eu.citrix.com> (for 4.3 release) Acked-by: Keir Fraser <keir@xen.org>
* x86: remove IS_PRIV_FOR referencesDaniel De Graaf2013-04-231-0/+1
| | | | | | | | | | | | The check in guest_physmap_mark_populate_on_demand is redundant, since its only caller is populate_physmap whose only caller checks the xsm_memory_adjust_reservation hook prior to calling. Add a new XSM hook for the other two checks since they allow privileged domains to arbitrarily map a guest's memory. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Acked-by: George Dunlap <george.dunlap@eu.citrix.com> (release perspective)
* x86/hvm: convert access check for nested HVM to XSMDaniel De Graaf2013-04-231-0/+1
| | | | | | | | | | | | This adds an XSM hook for enabling nested HVM support, replacing an IS_PRIV check. This hook is a partial duplicate with the xsm_hvm_param hook, but using the existing hook would require adding the index to the hook and would require the use of a custom hook for the xsm-disabled case (using XSM_OTHER, which is less immediately readable) - whereas adding a new hook retains the clarity of the existing code. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Acked-by: George Dunlap <george.dunlap@eu.citrix.com> (release perspective)
* xen/arch/arm: add XSM hook to HVMOP_{get,set}_paramDaniel De Graaf2013-01-301-1/+1
| | | | | | | | This hook is not x86-specific; move it out of CONFIG_X86. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Acked-by: Ian Campbell <ian.campbell@citrix.com> Committed-by: Keir Fraser <keir@xen.org>
* xen/arch/x86: complete XSM hooks on irq/pirq mappingsDaniel De Graaf2013-01-231-0/+2
| | | | | | | | | | | | | | | | | Manipulation of a domain's pirq namespace was not fully protected by XSM hooks because the XSM hooks for IRQs needed a physical IRQ. Since this may not apply to HVM domains, a complete solution needs to split the XSM hook for this operation, using one hook for the PIRQ manipulation and one for controlling access to the hardware IRQ. This reworking has the advantage of providing the same MSI data to remove_irq that is provided to add_irq, allowing the PCI device to be determined in both functions. It also eliminates the last callers of rcu_lock_target_domain_by_id in x86 and common code in preparation for this function's removal. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Committed-by: Keir Fraser <keir@xen.org>
* xen arm: add XSM hooks to arch_memory_opIan Campbell2013-01-211-2/+3
| | | | | | | | | | Treat XENMEM_add_to_physmap_range the same as XENMEM_add_to_physmap. Reported-by: Lars Rasmusson <Lars.Rasmusson@sics.se> Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Acked-by: Keir Fraser <keir@xen.org> Committed-by: Ian Campbell <ian.campbell@citrix.com>
* xen/xsm: distinguish scheduler get/set operationsDaniel De Graaf2013-01-111-0/+2
| | | | | | | | Add getscheduler and setscheduler permissions to replace the monolithic scheduler permission in the scheduler_op domctl and sysctl. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Committed-by: Keir Fraser <keir@xen.org>
* tmem: add XSM hooksDaniel De Graaf2013-01-111-0/+2
| | | | | | | | | | | This adds a pair of XSM hooks for tmem operations: xsm_tmem_op which controls any use of tmem, and xsm_tmem_control which allows use of the TMEM_CONTROL operations. By default, all domains can use tmem while only IS_PRIV domains can use control operations. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com> Committed-by: Keir Fraser <keir@xen.org>
* xen: platform_hypercall XSM hook removalDaniel De Graaf2013-01-111-12/+0
| | | | | | | | | A number of the platform_hypercall XSM hooks have no parameters or only pass the operation ID, making them redundant with the xsm_platform_op hook. Remove these redundant hooks. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Committed-by: Keir Fraser <keir@xen.org>
* xen: sysctl XSM hook removalDaniel De Graaf2013-01-111-10/+0
| | | | | | | | | A number of the sysctl XSM hooks have no parameters or only pass the operation ID, making them redundant with the xsm_sysctl hook. Remove these redundant hooks. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Committed-by: Keir Fraser <keir@xen.org>
* xen: domctl XSM hook removalDaniel De Graaf2013-01-111-27/+0
| | | | | | | | | | | | | | A number of the domctl XSM hooks do nothing except pass the domain and operation ID, making them redundant with the xsm_domctl hook. Remove these redundant hooks. The remaining domctls all use individual hooks because they pass extra details of the call to the XSM module in order to allow a more fine-grained access decision to be made - for example, considering the exact device or memory range being set up for guest access. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Committed-by: Keir Fraser <keir@xen.org>
* xen: add XSM hook for XENMEM_exchangeDaniel De Graaf2013-01-111-0/+1
| | | | | Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Committed-by: Keir Fraser <keir@xen.org>
* arch/x86: use XSM hooks for get_pg_owner access checksDaniel De Graaf2013-01-111-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are three callers of get_pg_owner: * do_mmuext_op, which does not have XSM hooks on all subfunctions * do_mmu_update, which has hooks that are inefficient * do_update_va_mapping_otherdomain, which has a simple XSM hook In order to preserve return values for the do_mmuext_op hypercall, an additional XSM hook is required to check the operation even for those subfunctions that do not use the pg_owner field. This also covers the MMUEXT_UNPIN_TABLE operation which did previously have an XSM hook. The XSM hooks in do_mmu_update were capable of replacing the checks in get_pg_owner; however, the hooks are buried in the inner loop of the function - not very good for performance when XSM is enabled and these turn in to indirect function calls. This patch removes the PTE from the hooks and replaces it with a bitfield describing what accesses are being requested. The XSM hook can then be called only when additional bits are set instead of once per iteration of the loop. This patch results in a change in the FLASK permissions used for mapping an MMIO page: the target for the permisison check on the memory mapping is no longer resolved to the device-specific type, and is instead either the domain's own type or domio_t (depending on if the domain uses DOMID_SELF or DOMID_IO in the map command). Device-specific access is still controlled via the "resource use" permisison checked at domain creation (or device hotplug). Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Acked-by: Jan Beulich <jbeulich@suse.com> Acked-by: Tim Deegan <tim@xen.org> Committed-by: Keir Fraser <keir@xen.org>
* arch/x86: Add missing mem_sharing XSM hooksDaniel De Graaf2013-01-111-1/+4
| | | | | | | | | | | | This patch adds splits up the mem_sharing and mem_event XSM hooks to better cover what the code is doing. It also changes the utility function get_mem_event_op_target to rcu_lock_live_remote_domain_by_id because there is no mm-specific logic in there. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Acked-by: Tim Deegan <tim@xen.org> Acked-by: Jan Beulich <jbeulich@suse.com> Committed-by: Keir Fraser <keir@xen.org>
* arch/x86: convert platform_hypercall to use XSMDaniel De Graaf2013-01-111-0/+1
| | | | | | | | | The newly introduced xsm_platform_op hook addresses new sub-ops, while most ops already have their own XSM hooks. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Acked-by: Jan Beulich <jbeulich@suse.com> Committed-by: Keir Fraser <keir@xen.org>
* xen: convert do_sysctl to use XSMDaniel De Graaf2013-01-111-0/+1
| | | | | | | | The xsm_sysctl hook now covers every sysctl, in addition to the more fine-grained XSM hooks in most sub-functions. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Committed-by: Keir Fraser <keir@xen.org>
* arch/x86: add distinct XSM hooks for map/unmapDaniel De Graaf2013-01-101-0/+3
| | | | | | | | | | | | | | The xsm_iomem_permission and xsm_ioport_permission hooks are intended to be called by the domain builder, while the calls in arch/x86/domctl.c which control mapping are also performed by the device model. Because these operations require distinct access control policies, they cannot use the same XSM hooks. This also adds a missing XSM hook in the unbind IRQ domctl. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Acked-by: Jan Beulich <jbeulich@suse.com> Committed-by: Keir Fraser <keir@xen.org>
* xsm: Use the dummy XSM module if XSM is disabledDaniel De Graaf2013-01-101-602/+5
| | | | | | | | | | | | This patch moves the implementation of the dummy XSM module to a header file that provides inline functions when XSM_ENABLE is not defined. This reduces duplication between the dummy module and callers when the implementation of the dummy return is not just "return 0", and also provides better compile-time checking for completeness of the XSM implementations in the dummy module. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Committed-by: Keir Fraser <keir@xen.org>
* xen: replace XEN_GUEST_HANDLE with XEN_GUEST_HANDLE_PARAM when appropriateStefano Stabellini2012-10-171-1/+1
| | | | | | | | | | | | Note: these changes don't make any difference on x86. Replace XEN_GUEST_HANDLE with XEN_GUEST_HANDLE_PARAM when it is used as an hypercall argument. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Keir Fraser <keir@xen.org> Committed-by: Ian Campbell <ian.campbell@citrix.com>
* xsm/flask: remove page-to-domain lookups from XSM hooksDaniel De Graaf2012-08-221-3/+3
| | | | | | | | | | | | | | | | | Doing a reverse lookup from MFN to its owning domain is redundant with the internal checks Xen does on pages. Change the checks to operate directly on the domain owning the pages for normal memory; MMIO areas are still checked with security_iomem_sid. This fixes a hypervisor crash when a domU attempts to map an MFN that is free in Xen's heap: the XSM hook is called before the validity check, and page_get_owner returns garbage when called on these pages. While explicitly checking for such pages using page_get_owner_and_reference is a possible solution, this ends up duplicating parts of get_page_from_l1e. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Committed-by: Keir Fraser <keir@xen.org>
* xsm: Add missing dummy hooksDaniel De Graaf2012-08-221-0/+30
| | | | | | | | | | A few XSM hooks have been defined without implementation in dummy.c; these will cause a null function pointer deference if called. Also implement the efi_call hook, which was incorrectly added without any implementations. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Committed-by: Keir Fraser <keir@xen.org>
* xsm: Add xsm_map_domain_pirq hookDaniel De Graaf2012-02-021-0/+6
| | | | | | | | | | When checking permissions in map_domain_pirq, the msi_desc field of the irq_desc is not yet populated with the PCI device being used. Pass in the msi_info structure which contains the intended PCI device whose label will be used in the security check. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Committed-by: Keir Fraser <keir@xen.org>
* xsm: Add security label to IRQ debug outputDaniel De Graaf2012-02-021-1/+6
| | | | | Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Committed-by: Keir Fraser <keir@xen.org>
* xsm: Add security labels to event-channel dumpDaniel De Graaf2012-02-021-0/+6
| | | | | | | | | | | | | | In FLASK, event channel labels are distinct from the labels of the domain using them. When debugging policy issues, it is useful to be able to view the current label of event channels; add this label to the event channel dump. This patch also adds the IRQ associated with a PIRQ for event channels bound to a PIRQ, and moves the xen_consumer flag to the front to create more consistent alignment in the output. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Committed-by: Keir Fraser <keir@xen.org>
* xen: use XSM instead of IS_PRIV for getdomaininfoDaniel De Graaf2012-01-281-0/+2
| | | | | | | | | | | | | | | The XEN_DOMCTL_getdomaininfo domctl does not allow manipulation of domains, only basic information such as size and state, so its use does not fully justify making a domain privileged. XSM modules can also provide fine-grained control over what domains are visible to domains that call getdomaininfo. If XSM is disabled (either at compile time or by using the dummy XSM module) then there is no change in behavior: only IS_PRIV domains can use this domctl. If enabled, the XSM module controls access. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Committed-by: Keir Fraser <keir@xen.org>
* xen: allow global VIRQ handlers to be delegated to other domainsDaniel De Graaf2012-01-281-0/+6
| | | | | | | | | | | | | | | | | This patch sends global VIRQs to a domain designated as the VIRQ handler instead of sending all global VIRQ events to dom0. This is required in order to run xenstored in a stubdom, because VIRQ_DOM_EXC must be sent to xenstored for domain destruction to work properly. This patch was inspired by the xenstored stubdomain patch series sent to xen-devel by Alex Zeffertt in 2009. Signed-off-by: Diego Ongaro <diego.ongaro@citrix.com> Signed-off-by: Alex Zeffertt <alex.zeffertt@eu.citrix.com> Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Acked-by: Ian Campbell <ian.campbell@citrix.com> Committed-by: Keir Fraser <keir@xen.org>
* xen: reinstate previously unused XENMEM_remove_from_physmap hypercallDaniel De Graaf2012-01-281-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch reinstates the XENMEM_remove_from_physmap hypercall which was removed in 19041:ee62aaafff46 because it was not used. However, is now needed in order to support xenstored stub domains. The xenstored stub domain is not priviliged like dom0 and so cannot unilaterally map the xenbus page of other guests into it's address space. Therefore, before creating a domU the domain builder needs to seed its grant table with a grant ref allowing the xenstored stub domain to access the new domU's xenbus page. At present domU's do not start with their grant table mapped. Instead it gets mapped when the guest requests a grant table from the hypervisor. In order to seed the grant table, the domain builder first needs to map it into dom0 address space. But the hypercall to do this requires a gpfn (guest pfn), which is an mfn for PV guest, but a pfn for HVM guests. Therfore, in order to seed the grant table of an HVM guest, dom0 needs to *temporarily* map it into the guest's "physical" address space. Hence the need to reinstate the XENMEM_remove_from_physmap hypercall. Signed-off-by: Alex Zeffertt <alex.zeffertt@eu.citrix.com> Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Acked-by: Ian Campbell <ian.campbell@citrix.com> Committed-by: Keir Fraser <keir@xen.org>
* xsm: add checks on PCI configuration accessDaniel De Graaf2011-12-181-0/+8
| | | | | | | | PCI configuration access is allowed to any privileged domain regardless of I/O port access restrictions; add XSM hooks for these accesses. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
* xsm: fix up dummy opsDaniel De Graaf2011-12-181-20/+126
| | | | Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
* xsm: add remote_remap permissionDaniel De Graaf2011-12-181-2/+2
| | | | | | | | The mmu_update hypercall can be used to manipulate the page tables of a remote domain. Add a check for this in the XSM hook in addition to the existing check on mapping pages of a remote domain. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
* xsm: only log dummy override if not setting up dummy_xsm_opsDaniel De Graaf2011-12-181-8/+9
| | | | | | | | The log messages from dummy overrides appear on every boot with XSM enabled, and are just noise when filling in the dummy_xsm_ops structure. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
* xsm: Expand I/O resource hooksDaniel De Graaf2011-12-021-5/+9
| | | | | | | | | | | | | | | | | | The XSM hooks inside rangeset are not useful in capturing the PIRQ mappings in HVM domains. They can also be called from softirq context where current->domain is invalid, causing spurious AVC denials from unrelated domains on such calls. Within FLASK code, the rangeset hooks were already divided between IRQs, I/O memory, and x86 IO ports; propagate this division back through the XSM hooks and call the XSM functions directly when needed. This removes XSM checks for the initial rangeset population for dom0 and the removal checks on domain destruction; denying either of these actions does not make sense. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Committed-by: Keir Fraser <keir@xen.org>
* xsm: Revert "Fix xsm_mmu_* and xsm_update_va_mapping hooks"Daniel De Graaf2011-12-021-6/+5
| | | | | | | | | This reverts 23220:56a3b9c7367f, which removes all validation of the target pages in the mapping. This crash was solved by properly marking pages without known SIDs in 22207:20f139010445. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Committed-by: Keir Fraser <keir@xen.org>
* xsm: remove unused xsm_assign_vector checkDaniel De Graaf2011-12-021-6/+0
| | | | | | | | The PHYSDEVOP_alloc_irq_vector hypercall is a noop, so its XSM check is not useful. Remove it and the "event vector" FLASK permission. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Committed-by: Keir Fraser <keir@xen.org>
* xen/xsm: Add missing dummy operationJames Carter2011-06-281-0/+6
| | | | | | This patch adds a dummy op for the xsm_vcpuextstate operation. Signed-off-by: James Carter <jwcart2@tycho.nsa.gov>
* xsm: Fix xsm_mmu_* and xsm_update_va_mapping hooksStephen Smalley2011-04-121-5/+6
| | | | | | | | | | | | | | | | | This is an attempt to properly fix the hypervisor crash previously described in http://marc.info/?l=xen-devel&m=128396289707362&w=2 In looking into this issue, I think the proper fix is to move the xsm_mmu_* and xsm_update_va_mapping hook calls later in the callers, after more validation has been performed and the page_info struct is readily available, and pass the page_info to the hooks. This patch moves the xsm_mmu_normal_update, xsm_mmu_machphys_update and xsm_update_va_mapping hook calls accordingly, and updates their interfaces and hook function implementations. This appears to resolve the crashes for me. Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
* [XSM] missing entries to xsm_fixup_opsKeir Fraser2009-04-141-0/+2
| | | | | | | This patch adds the missing presence checks for the pm_op and get_pmstat hooks in xsm_fixup_ops. Signed-off-by: George S. Coker, II <gscoker@alpha.ncsc.mil>
* xenpm: Set scheduler vcpu_migration_delay by xenpmKeir Fraser2009-04-061-0/+10
| | | | | Signed-off-by: Yu Ke <ke.yu@intel.com> Signed-off-by: Yang Xiaowei <xiaowei.yang@intel.com>
* Remove unused XENMEM_remove_from_physmap.Keir Fraser2009-01-141-5/+0
| | | | | | | Never present in any stable release of Xen. Introduced for use by qemu-dm but now not needed. Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
* Remove unused XENMEM_translate_pfn_list.Keir Fraser2009-01-141-6/+0
| | | | | | | | Never used by a guest OS (except in IA64 hcall translation layer) and obsoleted in the tools for ages. Recent usage by qemu-dm is now removed. Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
* xsm: XSM foreigndom usage bugKeir Fraser2008-09-111-2/+4
| | | | | | | | | | | - This patch corrects an unsafe/incorrect usage of FOREIGNDOM. The value of FOREIGNDOM is now passed through the XSM interface. Corresponding updates to the Flask module are included in this patch. - This patch also includes a minor header update to allow the Flask module to compile after recent updates to Xen. Signed-off-by: George Coker <gscoker@alpha.ncsc.mil>
* xsm: refactor IO hooks/sysctl hooksKeir Fraser2008-09-041-11/+95
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - The patch refactors the IO resource checks into the rangeset add/del code. This produces a much more architecture friendly implementation and ensures that HVM and paravirtualized guests are checked consistently. - The patch removes the following hooks in support of the refactoring of the IO resource checks: - xsm_irq_permission - xsm_iomem_permission - xsm_ioport_permission - The patch adds the following hooks in support of the refactoring of the IO resource checks: - xsm_add_range - xsm_remove_range - These IO refactoring changes are transparent to any pre-existing Flask policies. - The patch adds also adds hooks for sysctl functionality that was added since the last major XSM patch. The following hooks were added: - xsm_set_target - xsm_debug_keys - xsm_getcpuinfo - xsm_availheap - xsm_firmware_info - xsm_acpi_sleep - xsm_change_freq - xsm_getidletime - xsm_sendtrigger - xsm_test_assign_device - xsm_assign_device - xsm_deassign_device - xsm_bind_pt_irq - xsm_pin_mem_cacheattr - xsm_ext_vcpucontext Signed-off-by: George Coker <gscoker@alpha.ncsc.mil>
* hvm: Use main memory for video memory.Keir Fraser2008-08-271-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | When creating an HVM domain, if e.g. another domain is created before qemu allocates video memory, the extra 8MB memory ballooning is not available any more, because it got consumed by the other domain. This fixes it by taking video memory from the main memory: - make hvmloader use e820_malloc to reserve some of the main memory and notify ioemu of its address through the Xen platform PCI card. - add XENMAPSPACE_mfn to the xen_add_to_physmap memory op, to allow ioemu to move the MFNs between the original position and the PCI mapping, when LFB acceleration is disabled/enabled - add a remove_from_physmap memory op, to allow ioemu to unmap it completely for the case of old guests with acceleration disabled. - add xc_domain_memory_translate_gpfn_list to libxc to allow ioemu to get the MFNs of the video memory. - have xend save the PCI memory space instead of ioemu: if a memory page is there, the guest can access it like usual memory, so xend can safely be responsible to save it. The extra benefit is that live migration will apply the logdirty optimization there too. - handle old saved images, populating the video memory from ioemu if really needed. Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
* [XSM][FLASK] Remove unused code from XSM and FlaskKeir Fraser2008-07-211-6/+0
| | | | | | | The complete_init hook has been unused since the introduction of the create secure interface for domain_create. Signed-off-by: George Coker <gscoker@alpha.ncsc.mil>
* xsm: Missing function in dummy moduleKeir Fraser2008-07-171-0/+5
| | | | | | This adds a missing function to the dummy module to make it compile. Signed-off-by: Stefan Berger <stefanb@us.ibm.com>
* x86: allow control domain to limit machine addresses given to a particular guestKeir Fraser2008-07-111-0/+1
| | | | | | | This allows domains which make buggy assumptions about the maximum possible MFN to be worked around. Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
* [XSM] correctly located update_va_mapping hook within x86 ifdefskfraser@localhost.localdomain2007-09-061-6/+6
| | | | | | | | | | | | | The following patch addresses the issue where the XSM update_va_mapping hook was not correctly located inside the x86 ifdefs. Included are updates for the dummy and flask modules which are also effected by this issue. - update_va_mapping ifdef fix for xsm - update_va_mapping ifdef fix for dummy module - update_va_mapping ifdef fix for flask module Signed-off-by: George Coker <gscoker@alpha.ncsc.mil>
* Xen Security Modules: XSMkfraser@localhost.localdomain2007-08-311-0/+488
Signed-off-by: George Coker <gscoker@alpha.ncsc.mil>
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-09 11:21:46 +0000