[Xen-changelog] [xen master] libxl/arm: Initialize domain param HVM_PARAM_CALLBACK_IRQ

[patchbot@xxxxxxx]

commit 99fb06be525ef9cb13fb6d27656fc6cb84b152a1
Author:     Shannon Zhao <shannon.zhao@xxxxxxxxxx>
AuthorDate: Wed Sep 28 18:19:01 2016 -0700
Commit:     Wei Liu <wei.liu2@xxxxxxxxxx>
CommitDate: Fri Sep 30 11:47:27 2016 +0100

    libxl/arm: Initialize domain param HVM_PARAM_CALLBACK_IRQ
    
    The guest kernel will get the event channel interrupt information via
    domain param HVM_PARAM_CALLBACK_IRQ. Initialize it here.
    
    Signed-off-by: Shannon Zhao <shannon.zhao@xxxxxxxxxx>
    Acked-by: Julien Grall <julien.grall@xxxxxxx>
    Acked-by: Wei Liu <wei.liu2@xxxxxxxxxx>
---
 tools/libxl/libxl_arm.c      | 14 ++++++++++++++
 tools/libxl/libxl_internal.h |  3 +++
 2 files changed, 17 insertions(+)

diff --git a/tools/libxl/libxl_arm.c b/tools/libxl/libxl_arm.c
index 376307e..5f5ff03 100644
--- a/tools/libxl/libxl_arm.c
+++ b/tools/libxl/libxl_arm.c
@@ -900,8 +900,22 @@ int libxl__arch_domain_init_hw_description(libxl__gc *gc,
                                            struct xc_dom_image *dom)
 {
     int rc;
+    uint64_t val;
 
     assert(info->type == LIBXL_DOMAIN_TYPE_PV);
+
+    /* Set the value of domain param HVM_PARAM_CALLBACK_IRQ. */
+    val = MASK_INSR(HVM_PARAM_CALLBACK_TYPE_PPI,
+                    HVM_PARAM_CALLBACK_IRQ_TYPE_MASK);
+    /* Active-low level-sensitive  */
+    val |= MASK_INSR(HVM_PARAM_CALLBACK_TYPE_PPI_FLAG_LOW_LEVEL,
+                     HVM_PARAM_CALLBACK_TYPE_PPI_FLAG_MASK);
+    val |= GUEST_EVTCHN_PPI;
+    rc = xc_hvm_param_set(dom->xch, dom->guest_domid, HVM_PARAM_CALLBACK_IRQ,
+                          val);
+    if (rc)
+        return rc;
+
     rc = libxl__prepare_dtb(gc, info, state, dom);
     if (rc) goto out;
 
diff --git a/tools/libxl/libxl_internal.h b/tools/libxl/libxl_internal.h
index f1ba473..cb6d9e0 100644
--- a/tools/libxl/libxl_internal.h
+++ b/tools/libxl/libxl_internal.h
@@ -128,6 +128,9 @@
 #define ROUNDUP(_val, _order)                                           \
     (((unsigned long)(_val)+(1UL<<(_order))-1) & ~((1UL<<(_order))-1))
 
+#define MASK_EXTR(v, m) (((v) & (m)) / ((m) & -(m)))
+#define MASK_INSR(v, m) (((v) * ((m) & -(m))) & (m))
+
 #define min(X, Y) ({                             \
             const typeof (X) _x = (X);           \
             const typeof (Y) _y = (Y);           \
--
generated by git-patchbot for /home/xen/git/xen.git#master

_______________________________________________
Xen-changelog mailing list
Xen-changelog@xxxxxxxxxxxxx
https://lists.xenproject.org/xen-changelog