[PATCH 4/5] kvmtool: Save datamatch as little endian in {add,del}_event

[Andreas Herrmann <andreas.herrmann@caviumnetworks.com>]

W/o dedicated endianess it's impossible to find reliably a match
e.g. in kernel/virt/kvm/eventfd.c ioeventfd_in_range.

Signed-off-by: Andreas Herrmann <andreas.herrmann@caviumnetworks.com>
---
 ioeventfd.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/ioeventfd.c b/ioeventfd.c
index bce6861..a724baa 100644
--- a/ioeventfd.c
+++ b/ioeventfd.c
@@ -8,6 +8,7 @@
 #include <linux/kernel.h>
 #include <linux/kvm.h>
 #include <linux/types.h>
+#include <linux/byteorder.h>
 
 #include "kvm/ioeventfd.h"
 #include "kvm/kvm.h"
@@ -140,7 +141,7 @@ int ioeventfd__add_event(struct ioevent *ioevent, int flags)
 	kvm_ioevent = (struct kvm_ioeventfd) {
 		.addr		= ioevent->io_addr,
 		.len		= ioevent->io_len,
-		.datamatch	= ioevent->datamatch,
+		.datamatch	= cpu_to_le64(ioevent->datamatch),
 		.fd		= event,
 		.flags		= KVM_IOEVENTFD_FLAG_DATAMATCH,
 	};
@@ -199,7 +200,7 @@ int ioeventfd__del_event(u64 addr, u64 datamatch)
 	kvm_ioevent = (struct kvm_ioeventfd) {
 		.addr			= ioevent->io_addr,
 		.len			= ioevent->io_len,
-		.datamatch		= ioevent->datamatch,
+		.datamatch		= cpu_to_le64(ioevent->datamatch),
 		.flags			= KVM_IOEVENTFD_FLAG_PIO
 					| KVM_IOEVENTFD_FLAG_DEASSIGN
 					| KVM_IOEVENTFD_FLAG_DATAMATCH,
-- 
1.7.9.5