[7/7] KVM: assigned dev: Big endian support for MSI-X MMIO

Commit Message

Sheng Yang Nov. 11, 2010, 7:47 a.m. UTC

None

Patch

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)) {