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authorMarc Zyngier <marc.zyngier@arm.com>2017-01-25 13:47:43 +0000
committerMarc Zyngier <marc.zyngier@arm.com>2017-01-30 13:47:38 +0000
commit9d93dc1c96ec446bef9c34a189ea24556f1af89a (patch)
tree28d7d5ab1939ba50c223e2762a66a9498b0a6e64
parent13b7756cec3d6e8329fa21c314fe150c12601c6c (diff)
arm/arm64: KVM: Get rid of KVM_MEMSLOT_INCOHERENT
KVM_MEMSLOT_INCOHERENT is not used anymore, as we've killed its only use in the arm/arm64 MMU code. Let's remove the last artifacts. Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
-rw-r--r--arch/arm/kvm/mmu.c9
-rw-r--r--include/linux/kvm_host.h1
2 files changed, 0 insertions, 10 deletions
diff --git a/arch/arm/kvm/mmu.c b/arch/arm/kvm/mmu.c
index 5cc35080cbf7..962616fd4ddd 100644
--- a/arch/arm/kvm/mmu.c
+++ b/arch/arm/kvm/mmu.c
@@ -1876,15 +1876,6 @@ void kvm_arch_free_memslot(struct kvm *kvm, struct kvm_memory_slot *free,
int kvm_arch_create_memslot(struct kvm *kvm, struct kvm_memory_slot *slot,
unsigned long npages)
{
- /*
- * Readonly memslots are not incoherent with the caches by definition,
- * but in practice, they are used mostly to emulate ROMs or NOR flashes
- * that the guest may consider devices and hence map as uncached.
- * To prevent incoherency issues in these cases, tag all readonly
- * regions as incoherent.
- */
- if (slot->flags & KVM_MEM_READONLY)
- slot->flags |= KVM_MEMSLOT_INCOHERENT;
return 0;
}
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 1c5190dab2c1..cda457bcedc1 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -45,7 +45,6 @@
* include/linux/kvm_h.
*/
#define KVM_MEMSLOT_INVALID (1UL << 16)
-#define KVM_MEMSLOT_INCOHERENT (1UL << 17)
/* Two fragments for cross MMIO pages. */
#define KVM_MAX_MMIO_FRAGMENTS 2