File valgrind.xen-4.9-handle-dm_op-hypercall.patch of Package valgrind

Overview Repositories Revisions Requests Users Attributes Meta

File valgrind.xen-4.9-handle-dm_op-hypercall.patch of Package valgrind (Revision 40fbeb26415ff8562c036174237ee715)

Currently displaying revision 40fbeb26415ff8562c036174237ee715 , Show latest

From: Olaf Hering <olaf@aepfle.de>
Date: Fri, 16 Nov 2018 17:29:38 +0100
Subject: xen-4.9: handle dm_op hypercall

Handle dm_op hypercall

bz#390553
---
 coregrind/m_syswrap/syswrap-xen.c | 19 +++++++++++++++++++
 include/vki/vki-xen.h             |  1 +
 2 files changed, 20 insertions(+)

--- a/coregrind/m_syswrap/syswrap-xen.c
+++ b/coregrind/m_syswrap/syswrap-xen.c
@@ -1621,6 +1621,16 @@ PRE(tmem_op)
 #undef __PRE_XEN_TMEMOP_READ
 }
 
+PRE(dm_op)
+{
+   unsigned int domid = ARG1, num = ARG2;
+   struct vki_xen_privcmd_dm_op_buf *args = (void *)(ARG3);
+
+   PRINT("__HYPERVISOR_dm_op ( %u, %u, %p )", domid, num, args);
+
+   PRE_MEM_READ("__HYPERVISOR_dm_op ubuf", (Addr)args, sizeof(*args) * num);
+}
+
 POST(memory_op)
 {
    switch (ARG1) {
@@ -2482,6 +2492,14 @@ POST(tmem_op)
     }
 }
 
+POST(dm_op)
+{
+   unsigned int num = ARG2;
+   struct vki_xen_privcmd_dm_op_buf *args = (void *)(ARG3);
+
+   POST_MEM_WRITE((Addr) args, sizeof(*args) * num);
+}
+
 typedef
    struct {
       SyscallTableEntry entry;
@@ -2544,6 +2562,7 @@ static XenHypercallTableEntry hypercall_table[] = {
    //    __VKI_XEN_kexec_op                                        // 37
    HYPXY(__VKI_XEN_tmem_op,                 tmem_op,           1), // 38
    //    __VKI_XEN_xenpmu_op                                       // 40
+   HYPXY(__VKI_XEN_dm_op,                   dm_op,             3), // 41
 };
 
 static void bad_before ( ThreadId              tid,
--- a/include/vki/vki-xen.h
+++ b/include/vki/vki-xen.h
@@ -70,6 +70,7 @@
 #define __VKI_XEN_tmem_op              38
 #define __VKI_XEN_xc_reserved_op       39 /* reserved for XenClient */
 #define __VKI_XEN_xenpmu_op            40
+#define __VKI_XEN_dm_op                41
 
 #define __DEFINE_VKI_XEN_GUEST_HANDLE(name, type) \
     ___DEFINE_VKI_XEN_GUEST_HANDLE(name, type);   \

Places

File valgrind.xen-4.9-handle-dm_op-hypercall.patch of Package valgrind (Revision 40fbeb26415ff8562c036174237ee715)

Places