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authorJake Oshins <jakeo@microsoft.com>2015-12-14 16:01:39 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-12-14 19:12:21 -0800
commit619848bd074343ff2bdeeafca0be39748f6da372 (patch)
tree1859ac19a893f8db5910b3219a4ffe66e8f5de40 /include/linux/hyperv.h
parent17efbee8ba02ef00d3b270998978f8a1a90f1d92 (diff)
drivers:hv: Export a function that maps Linux CPU num onto Hyper-V proc num
This patch exposes the mapping between Linux CPU number and Hyper-V virtual processor number. This is necessary because the hypervisor needs to know which virtual processors to target when making a mapping in the Interrupt Redirection Table in the I/O MMU. Signed-off-by: Jake Oshins <jakeo@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/hyperv.h')
-rw-r--r--include/linux/hyperv.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 8fdc17b84739..fddb3e0e8feb 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -983,6 +983,8 @@ int vmbus_allocate_mmio(struct resource **new, struct hv_device *device_obj,
resource_size_t size, resource_size_t align,
bool fb_overlap_ok);
+int vmbus_cpu_number_to_vp_number(int cpu_number);
+
/**
* VMBUS_DEVICE - macro used to describe a specific hyperv vmbus device
*