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Commit 9d93dc1c authored by Marc Zyngier's avatar Marc Zyngier
Browse files

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: default avatarChristoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
parent 13b7756c

arch/arm/kvm/mmu.c

+0 −9
Original line number Diff line number Diff line
@@ -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;

}

include/linux/kvm_host.h

+0 −1
Original line number Diff line number Diff line
@@ -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