File valgrind.xen-4.9-handle-IOCTL_PRIVCMD_DM_OP.patch of Package valgrind

From: Olaf Hering <olaf@aepfle.de>
Date: Fri, 16 Nov 2018 17:29:39 +0100
Subject: xen-4.9: handle IOCTL_PRIVCMD_DM_OP

Handle IOCTL_PRIVCMD_DM_OP

bz#390553
---
 coregrind/m_syswrap/syswrap-linux.c | 17 +++++++++++++++++
 include/vki/vki-linux.h             | 14 ++++++++++++++
 2 files changed, 31 insertions(+)

--- a/coregrind/m_syswrap/syswrap-linux.c
+++ b/coregrind/m_syswrap/syswrap-linux.c
@@ -8428,24 +8428,35 @@ PRE(sys_ioctl)
        struct vki_xen_privcmd_mmapbatch_v2 *args =
            (struct vki_xen_privcmd_mmapbatch_v2 *)(Addr)(ARG3);
        PRE_MEM_READ("VKI_XEN_IOCTL_PRIVCMD_MMAPBATCH_V2(num)",
                     (Addr)&args->num, sizeof(args->num));
        PRE_MEM_READ("VKI_XEN_IOCTL_PRIVCMD_MMAPBATCH_V2(dom)",
                     (Addr)&args->dom, sizeof(args->dom));
        PRE_MEM_READ("VKI_XEN_IOCTL_PRIVCMD_MMAPBATCH_V2(addr)",
                     (Addr)&args->addr, sizeof(args->addr));
        PRE_MEM_READ("VKI_XEN_IOCTL_PRIVCMD_MMAPBATCH_V2(arr)",
                     (Addr)args->arr, sizeof(*(args->arr)) * args->num);
       break;
    }
+   case VKI_XEN_IOCTL_PRIVCMD_DM_OP: {
+      struct vki_xen_privcmd_dm_op *args =
+         (struct vki_xen_privcmd_dm_op *)(ARG3);
+      PRE_MEM_READ("VKI_XEN_IOCTL_PRIVCMD_DM_OP(dom)",
+                  (Addr)&args->dom, sizeof(args->dom));
+      PRE_MEM_READ("VKI_XEN_IOCTL_PRIVCMD_DM_OP(num)",
+                  (Addr)&args->num, sizeof(args->num));
+      PRE_MEM_READ("VKI_XEN_IOCTL_PRIVCMD_DM_OP(ubufs)",
+                  (Addr)args->ubufs, sizeof(*(args->ubufs)) * args->num);
+      break;
+   }
 
    case VKI_XEN_IOCTL_EVTCHN_BIND_VIRQ: {
          struct vki_xen_ioctl_evtchn_bind_virq *args =
             (struct vki_xen_ioctl_evtchn_bind_virq *)(Addr)(ARG3);
          PRE_MEM_READ("VKI_XEN_IOCTL_EVTCHN_BIND_VIRQ(virq)",
                  (Addr)&args->virq, sizeof(args->virq));
       }
       break;
    case VKI_XEN_IOCTL_EVTCHN_BIND_INTERDOMAIN: {
          struct vki_xen_ioctl_evtchn_bind_interdomain *args =
             (struct vki_xen_ioctl_evtchn_bind_interdomain *)(Addr)(ARG3);
          PRE_MEM_READ("VKI_XEN_IOCTL_EVTCHN_BIND_INTERDOMAIN(remote_domain)",
@@ -11140,24 +11151,30 @@ POST(sys_ioctl)
    case VKI_XEN_IOCTL_PRIVCMD_MMAPBATCH: {
        struct vki_xen_privcmd_mmapbatch *args =
            (struct vki_xen_privcmd_mmapbatch *)(Addr)(ARG3);
        POST_MEM_WRITE((Addr)args->arr, sizeof(*(args->arr)) * args->num);
       }
       break;
    case VKI_XEN_IOCTL_PRIVCMD_MMAPBATCH_V2: {
        struct vki_xen_privcmd_mmapbatch_v2 *args =
            (struct vki_xen_privcmd_mmapbatch_v2 *)(Addr)(ARG3);
        POST_MEM_WRITE((Addr)args->err, sizeof(*(args->err)) * args->num);
       }
       break;
+   case VKI_XEN_IOCTL_PRIVCMD_DM_OP: {
+      struct vki_xen_privcmd_dm_op *args =
+         (struct vki_xen_privcmd_dm_op *)(ARG3);
+      POST_MEM_WRITE((Addr)args->ubufs, sizeof(*(args->ubufs)) * args->num);
+      }
+      break;
 
    case VKI_XEN_IOCTL_EVTCHN_BIND_VIRQ:
    case VKI_XEN_IOCTL_EVTCHN_BIND_INTERDOMAIN:
    case VKI_XEN_IOCTL_EVTCHN_BIND_UNBOUND_PORT:
    case VKI_XEN_IOCTL_EVTCHN_UNBIND:
    case VKI_XEN_IOCTL_EVTCHN_NOTIFY:
    case VKI_XEN_IOCTL_EVTCHN_RESET:
       /* No output */
       break;
    case VKI_XEN_IOCTL_GNTDEV_MAP_GRANT_REF: {
        struct vki_xen_ioctl_gntdev_map_grant_ref *args =
             (struct vki_xen_ioctl_gntdev_map_grant_ref*)(Addr)(ARG3);
--- a/include/vki/vki-linux.h
+++ b/include/vki/vki-linux.h
@@ -3448,30 +3448,44 @@ struct vki_xen_privcmd_mmapbatch {
         __vki_u64 addr;  /* virtual address */
         __vki_xen_pfn_t *arr; /* array of mfns - top nibble set on err */
 };
 
 struct vki_xen_privcmd_mmapbatch_v2 {
         unsigned int num; /* number of pages to populate */
         __vki_u16 dom;      /* target domain */
         __vki_u64 addr;       /* virtual address */
         const __vki_xen_pfn_t *arr; /* array of mfns */
         int __user *err;  /* array of error codes */
 };
 
+struct vki_xen_privcmd_dm_op_buf {
+        void __user *uptr;
+        __vki_kernel_size_t size;
+};
+
+struct vki_xen_privcmd_dm_op {
+        __vki_u16 dom;
+        __vki_u16 num;
+        const struct vki_xen_privcmd_dm_op_buf __user *ubufs;
+};
+
+
 #define VKI_XEN_IOCTL_PRIVCMD_HYPERCALL    _VKI_IOC(_VKI_IOC_NONE, 'P', 0, sizeof(struct vki_xen_privcmd_hypercall))
 #define VKI_XEN_IOCTL_PRIVCMD_MMAP         _VKI_IOC(_VKI_IOC_NONE, 'P', 2, sizeof(struct vki_xen_privcmd_mmap))
 
 #define VKI_XEN_IOCTL_PRIVCMD_MMAPBATCH    _VKI_IOC(_VKI_IOC_NONE, 'P', 3, sizeof(struct vki_xen_privcmd_mmapbatch))
 #define VKI_XEN_IOCTL_PRIVCMD_MMAPBATCH_V2 _VKI_IOC(_VKI_IOC_NONE, 'P', 4, sizeof(struct vki_xen_privcmd_mmapbatch_v2))
 
+#define VKI_XEN_IOCTL_PRIVCMD_DM_OP        _VKI_IOC(_VKI_IOC_NONE, 'P', 5, sizeof(struct vki_xen_privcmd_dm_op))
+
 //----------------------------------------------------------------------
 // Xen evtchn IOCTL
 //----------------------------------------------------------------------
 
 #define VKI_XEN_IOCTL_EVTCHN_BIND_VIRQ				\
 	_VKI_IOC(_VKI_IOC_NONE, 'E', 0, sizeof(struct vki_xen_ioctl_evtchn_bind_virq))
 struct vki_xen_ioctl_evtchn_bind_virq {
 	vki_uint32_t virq;
 };
 
 #define VKI_XEN_IOCTL_EVTCHN_BIND_INTERDOMAIN			\
 	_VKI_IOC(_VKI_IOC_NONE, 'E', 1, sizeof(struct vki_xen_ioctl_evtchn_bind_interdomain))