Hi Shannon,
On 02/09/16 03:55, Shannon Zhao wrote:
From: Shannon Zhao <shannon.z...@linaro.org>
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.z...@linaro.org>
Acked-by: Julien Grall <julien.gr...@arm.com>
Regards,
---
tools/libxl/libxl_arm.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/tools/libxl/libxl_arm.c b/tools/libxl/libxl_arm.c
index 6f0bc70..e73d65e 100644
--- a/tools/libxl/libxl_arm.c
+++ b/tools/libxl/libxl_arm.c
@@ -900,8 +900,21 @@ 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 = (uint64_t)HVM_PARAM_CALLBACK_TYPE_PPI <<
HVM_PARAM_CALLBACK_IRQ_TYPE_SHIFT;
+ /* Active-low level-sensitive */
+ val |= (HVM_PARAM_CALLBACK_TYPE_PPI_FLAG_LOW_LEVEL <<
+ HVM_PARAM_CALLBACK_TYPE_PPI_FLAG_SHIFT);
+ 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;
--
Julien Grall
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