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Diffstat (limited to 'drivers/hv/hv.c')
-rw-r--r--drivers/hv/hv.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c
index e989c6fd1f8f..363532add4c7 100644
--- a/drivers/hv/hv.c
+++ b/drivers/hv/hv.c
@@ -27,6 +27,7 @@
#include <linux/vmalloc.h>
#include <linux/hyperv.h>
#include <linux/version.h>
+#include <linux/interrupt.h>
#include <asm/hyperv.h>
#include "hyperv_vmbus.h"
@@ -137,6 +138,8 @@ int hv_init(void)
sizeof(void *) * NR_CPUS);
memset(hv_context.vp_index, 0,
sizeof(int) * NR_CPUS);
+ memset(hv_context.event_dpc, 0,
+ sizeof(void *) * NR_CPUS);
max_leaf = query_hypervisor_info();
@@ -285,6 +288,15 @@ void hv_synic_init(void *irqarg)
/* Check the version */
rdmsrl(HV_X64_MSR_SVERSION, version);
+ hv_context.event_dpc[cpu] = (struct tasklet_struct *)
+ kmalloc(sizeof(struct tasklet_struct),
+ GFP_ATOMIC);
+ if (hv_context.event_dpc[cpu] == NULL) {
+ pr_err("Unable to allocate event dpc\n");
+ goto cleanup;
+ }
+ tasklet_init(hv_context.event_dpc[cpu], vmbus_on_event, cpu);
+
hv_context.synic_message_page[cpu] =
(void *)get_zeroed_page(GFP_ATOMIC);

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