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Commit 03133347 authored by Claudio Imbrenda's avatar Claudio Imbrenda Committed by Christian Borntraeger
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KVM: s390: a utility function for migration 



Introduce a utility function that will be used later on for storage
attributes migration, and use it in kvm_main.c to replace existing code
that does the same thing.

Signed-off-by: default avatarClaudio Imbrenda <imbrenda@linux.vnet.ibm.com>
Message-Id: <1525106005-13931-2-git-send-email-imbrenda@linux.vnet.ibm.com>
Signed-off-by: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
parent 0230cae7

include/linux/kvm_host.h

+7 −0
Original line number Diff line number Diff line
@@ -309,6 +309,13 @@ static inline unsigned long kvm_dirty_bitmap_bytes(struct kvm_memory_slot *memsl 
	return ALIGN(memslot->npages, BITS_PER_LONG) / 8;

}



static inline unsigned long *kvm_second_dirty_bitmap(struct kvm_memory_slot *memslot)

{

	unsigned long len = kvm_dirty_bitmap_bytes(memslot);



	return memslot->dirty_bitmap + len / sizeof(*memslot->dirty_bitmap);

}



struct kvm_s390_adapter_int {

	u64 ind_addr;

	u64 summary_addr;

virt/kvm/kvm_main.c

+1 −1
Original line number Diff line number Diff line
@@ -1169,7 +1169,7 @@ int kvm_get_dirty_log_protect(struct kvm *kvm, 


	n = kvm_dirty_bitmap_bytes(memslot);



	dirty_bitmap_buffer = dirty_bitmap + n / sizeof(long);

	dirty_bitmap_buffer = kvm_second_dirty_bitmap(memslot);

	memset(dirty_bitmap_buffer, 0, n);



	spin_lock(&kvm->mmu_lock);