023ae9a88a
Max memslot size supported by kvm on s390 is 8Tb, move logic of splitting RAM in chunks upto 8T to KVM code. This way it will hide KVM specific restrictions in KVM code and won't affect board level design decisions. Which would allow us to avoid misusing memory_region_allocate_system_memory() API and eventually use a single hostmem backend for guest RAM. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Message-Id: <20190924144751.24149-4-imammedo@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
46 lines
1.0 KiB
C
46 lines
1.0 KiB
C
/*
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* Internal definitions for a target's KVM support
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*
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*/
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#ifndef QEMU_KVM_INT_H
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#define QEMU_KVM_INT_H
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#include "exec/memory.h"
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#include "sysemu/accel.h"
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#include "sysemu/kvm.h"
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typedef struct KVMSlot
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{
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hwaddr start_addr;
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ram_addr_t memory_size;
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void *ram;
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int slot;
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int flags;
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int old_flags;
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/* Dirty bitmap cache for the slot */
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unsigned long *dirty_bmap;
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} KVMSlot;
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typedef struct KVMMemoryListener {
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MemoryListener listener;
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/* Protects the slots and all inside them */
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QemuMutex slots_lock;
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KVMSlot *slots;
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int as_id;
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} KVMMemoryListener;
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#define TYPE_KVM_ACCEL ACCEL_CLASS_NAME("kvm")
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#define KVM_STATE(obj) \
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OBJECT_CHECK(KVMState, (obj), TYPE_KVM_ACCEL)
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void kvm_memory_listener_register(KVMState *s, KVMMemoryListener *kml,
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AddressSpace *as, int as_id);
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void kvm_set_max_memslot_size(hwaddr max_slot_size);
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#endif
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