Add marco for big-endian machine.(Untested!)

Signed-off-by: Sheng Yang <sh...@linux.intel.com>
---
 virt/kvm/assigned-dev.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/virt/kvm/assigned-dev.c b/virt/kvm/assigned-dev.c
index 3010d7d..15b5f74 100644
--- a/virt/kvm/assigned-dev.c
+++ b/virt/kvm/assigned-dev.c
@@ -848,9 +848,9 @@ static int msix_mmio_read(struct kvm_io_device *this, gpa_t 
addr, int len,
                idx = (addr - adev->msix_mmio_base) / PCI_MSIX_ENTRY_SIZE;
                if ((addr % PCI_MSIX_ENTRY_SIZE) ==
                                PCI_MSIX_ENTRY_VECTOR_CTRL)
-                       *(unsigned long *)val =
+                       *(unsigned long *)val = le32_to_cpu(
                                test_bit(idx, adev->msix_mask_bitmap) ?
-                               PCI_MSIX_ENTRY_CTRL_MASKBIT : 0;
+                               PCI_MSIX_ENTRY_CTRL_MASKBIT : 0);
                else
                        r = -EOPNOTSUPP;
                goto out;
@@ -869,6 +869,7 @@ static int msix_mmio_read(struct kvm_io_device *this, gpa_t 
addr, int len,
                        adev->msix_mask_bitmap);
        memcpy(val, &entry[addr % PCI_MSIX_ENTRY_SIZE / sizeof *entry], len);
 
+       *(unsigned long *)val = le32_to_cpu(*(unsigned long *)val);
 out:
        mutex_unlock(&adev->kvm->lock);
        return r;
@@ -881,7 +882,7 @@ static int msix_mmio_write(struct kvm_io_device *this, 
gpa_t addr, int len,
                        container_of(this, struct kvm_assigned_dev_kernel,
                                     msix_mmio_dev);
        int idx, r = 0;
-       unsigned long new_val = *(unsigned long *)val;
+       unsigned long new_val = cpu_to_le32(*(unsigned long *)val);
 
        mutex_lock(&adev->kvm->lock);
        if (!msix_mmio_in_range(adev, addr, len)) {
-- 
1.7.0.1

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