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[4/5] ARM: kvm vgic mmio should return data in BE format in BE case

Message ID 1387524419-4216-5-git-send-email-victor.kamensky@linaro.org
State Superseded
Headers show

Commit Message

vkamensky Dec. 20, 2013, 7:26 a.m. UTC 
KVM mmio in BE case assumes that data it recieves is in BE format. Vgic
operates in LE, so need byteswap data in BE case.

Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
---
 virt/kvm/arm/vgic.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
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Patch

diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c
index 685fc72..7e11458 100644
--- a/virt/kvm/arm/vgic.c
+++ b/virt/kvm/arm/vgic.c
@@ -236,12 +236,12 @@  static void vgic_cpu_irq_clear(struct kvm_vcpu *vcpu, int irq)
 
 static u32 mmio_data_read(struct kvm_exit_mmio *mmio, u32 mask)
 {
-	return *((u32 *)mmio->data) & mask;
+	return le32_to_cpu(*((u32 *)mmio->data)) & mask;
 }
 
 static void mmio_data_write(struct kvm_exit_mmio *mmio, u32 mask, u32 value)
 {
-	*((u32 *)mmio->data) = value & mask;
+	*((u32 *)mmio->data) = cpu_to_le32(value) & mask;
 }
 
 /**