search for: hvmop_get_param

.../* Replies and async watch events. */     XENSTORE_RING_IDX req_cons, req_prod;     XENSTORE_RING_IDX rsp_cons, rsp_prod;     };     struct xenstore_domain_interface *xenstore;     xen_hvm_param_t param;     param.domid = DOMID_SELF;     param.index = HVM_PARAM_STORE_PFN;     if ( hypercall_hvm_op(HVMOP_get_param, &param) )         BUG();     xenstore = (void *) (unsigned long) (param.value << PAGE_SHIFT);     param.domid = DOMID_SELF;     param.index = HVM_PARAM_STORE_EVTCHN;     if ( hypercall_hvm_op(HVMOP_get_param, &param) )         BUG();     xenstore_event = param.value;     I get the x...

...sing following code, how can i use it? Simply using __va() seems wrong, for the ( param.value << PAGE_SHIFT ) is feffc000 in my test module, using __va() will overflow.         xen_hvm_param_t param;     param.domid = DOMID_SELF;     param.index = HVM_PARAM_STORE_PFN;      hypercall_hvm_op(HVMOP_get_param, &param); _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

...y supported + * + * HYPERVISOR_sysctl + * All generic sub-operations, with the exception of: + * * XEN_SYSCTL_page_offline_op + * * XEN_SYSCTL_get_pmstat + * * XEN_SYSCTL_pm_op + * + * HYPERVISOR_hvm_op + * Exactly these sub-operations are supported: + * * HVMOP_set_param + * * HVMOP_get_param + * + * HYPERVISOR_grant_table_op + * All generic sub-operations + * + * HYPERVISOR_vcpu_op + * Exactly these sub-operations are supported: + * * VCPUOP_register_vcpu_info + * * VCPUOP_register_runstate_memory_area + */ + #define XEN_HYPERCALL_TAG 0XEA1 #define uint64_aligned_t ui...

As you know, HVM save/restore broke recently because restored config miss guest memsize that used by xc_hvm_restore to locate some pfn. After discussion, we decided to remove the pfn deduction logic from restore side by adding a general memory layout. I have a patch for it. But then qemu broke, because it also require the memsize to locate the share page. We can''t use the previous

...t; # _hvm_op "_t", _field) + + switch (op) { + case HVMOP_set_param: + __PRE_XEN_HVMOP_READ(set_param, xen_hvm_param_t, domid); + __PRE_XEN_HVMOP_READ(set_param, xen_hvm_param_t, index); + __PRE_XEN_HVMOP_READ(set_param, xen_hvm_param_t, value); + break; + + case HVMOP_get_param: + __PRE_XEN_HVMOP_READ(get_param, xen_hvm_param_t, domid); + __PRE_XEN_HVMOP_READ(get_param, xen_hvm_param_t, index); + break; + + default: + bad_subop(tid, layout, arrghs, status, flags, + "__HYPERVISOR_hvm_op", op); + break; + } +#undef __PRE...