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using Ryujinx.Memory;
using System.Collections.Generic;
namespace Ryujinx.Cpu.AppleHv
{
class HvMemoryBlockAllocator : PrivateMemoryAllocatorImpl<HvMemoryBlockAllocator.Block>
{
private const ulong InvalidOffset = ulong.MaxValue;
public class Block : PrivateMemoryAllocator.Block
{
private readonly HvIpaAllocator _ipaAllocator;
public ulong Ipa { get; }
public Block(HvIpaAllocator ipaAllocator, MemoryBlock memory, ulong size) : base(memory, size)
{
_ipaAllocator = ipaAllocator;
lock (ipaAllocator)
{
Ipa = ipaAllocator.Allocate(size);
}
HvApi.hv_vm_map((ulong)Memory.Pointer, Ipa, size, hv_memory_flags_t.HV_MEMORY_READ | hv_memory_flags_t.HV_MEMORY_WRITE).ThrowOnError();
}
public override void Destroy()
{
HvApi.hv_vm_unmap(Ipa, Size).ThrowOnError();
lock (_ipaAllocator)
{
_ipaAllocator.Free(Ipa, Size);
}
base.Destroy();
}
}
private readonly HvIpaAllocator _ipaAllocator;
public HvMemoryBlockAllocator(HvIpaAllocator ipaAllocator, int blockAlignment) : base(blockAlignment, MemoryAllocationFlags.None)
{
_ipaAllocator = ipaAllocator;
}
public unsafe HvMemoryBlockAllocation Allocate(ulong size, ulong alignment)
{
var allocation = Allocate(size, alignment, CreateBlock);
return new HvMemoryBlockAllocation(this, allocation.Block, allocation.Offset, allocation.Size);
}
private Block CreateBlock(MemoryBlock memory, ulong size)
{
return new Block(_ipaAllocator, memory, size);
}
}
}
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