/*
 * Copyright 2026, Haiku, Inc. All rights reserved.
 * Distributed under the terms of the MIT License.
 */


#include "paging/nested/X86VMTranslationMapRVI.h"

#include "paging/64bit/X86PagingStructures64Bit.h"


//#define TRACE_X86_VM_TRANSLATION_MAP_RVI
#ifdef TRACE_X86_VM_TRANSLATION_MAP_RVI
#       define TRACE(x...) dprintf(x)
#else
#       define TRACE(x...) ;
#endif


// #pragma mark - X86VMTranslationMapRVI


X86VMTranslationMapRVI::X86VMTranslationMapRVI()
        :
        X86VMTranslationMap64Bit(false)
{
}


X86VMTranslationMapRVI::~X86VMTranslationMapRVI()
{
}


status_t
X86VMTranslationMapRVI::Init()
{
        TRACE("X86VMTranslationMapRVI::Init()\n");

        status_t status = X86VMTranslationMap64Bit::Init(false);
        if (status != B_OK)
                return status;

        // Clear the PMLTop, as we don't want the kernel mappings in there.
        memset(PagingStructures64Bit()->VirtualPMLTop(), 0, B_PAGE_SIZE);

        return B_OK;
}


void
X86VMTranslationMapRVI::SetFlushCallback(void (**callback)(void*), void* arg)
{
        fFlushCallback = callback;
        fFlushCallbackArg = arg;
}


void
X86VMTranslationMapRVI::Flush()
{
        if (fInvalidPagesCount <= 0)
                return;

        if (fFlushCallback != NULL && *fFlushCallback != NULL)
                (*fFlushCallback)(fFlushCallbackArg);
}


status_t
X86VMTranslationMapRVI::Map(addr_t virtualAddress, phys_addr_t physicalAddress,
        uint32 attributes, uint32 memoryType, vm_page_reservation* reservation)
{
        // Always specify B_EXECUTE_AREA, so that the NX flag isn't set.
        attributes |= B_EXECUTE_AREA;

        return X86VMTranslationMap64Bit::Map(virtualAddress, physicalAddress,
                attributes, memoryType, reservation);
}


status_t
X86VMTranslationMapRVI::Protect(addr_t start, addr_t end, uint32 attributes,
        uint32 memoryType)
{
        ASSERT_UNREACHABLE();
        return B_ERROR;
}