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/* $Id: DBGFInline.h $ */
/** @file
* DBGF - Internal header file containing the inlined functions.
*/
/*
* Copyright (C) 2020-2023 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* SPDX-License-Identifier: GPL-3.0-only
*/
#ifndef VMM_INCLUDED_SRC_include_DBGFInline_h
#define VMM_INCLUDED_SRC_include_DBGFInline_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif
/**
* Initializes the given L2 table entry with the given values.
*
* @param pL2Entry The L2 entry to intialize.
* @param hBp The breakpoint handle.
* @param GCPtr The GC pointer used as the key (only the upper 6 bytes are used).
* @param idxL2Left The left L2 table index.
* @param idxL2Right The right L2 table index.
* @param iDepth The depth of the node in the tree.
*/
DECLINLINE(void) dbgfBpL2TblEntryInit(PDBGFBPL2ENTRY pL2Entry, DBGFBP hBp, RTGCPTR GCPtr,
uint32_t idxL2Left, uint32_t idxL2Right, uint8_t iDepth)
{
uint64_t u64GCPtrKeyAndBpHnd1 = ((uint64_t)hBp & DBGF_BP_L2_ENTRY_BP_1ST_MASK) << DBGF_BP_L2_ENTRY_BP_1ST_SHIFT
| DBGF_BP_INT3_L2_KEY_EXTRACT_FROM_ADDR(GCPtr);
uint64_t u64LeftRightIdxDepthBpHnd2 = (((uint64_t)hBp & DBGF_BP_L2_ENTRY_BP_2ND_MASK) >> 16) << DBGF_BP_L2_ENTRY_BP_2ND_SHIFT
| ((uint64_t)iDepth << DBGF_BP_L2_ENTRY_DEPTH_SHIFT)
| ((uint64_t)idxL2Right << DBGF_BP_L2_ENTRY_RIGHT_IDX_SHIFT)
| ((uint64_t)idxL2Left << DBGF_BP_L2_ENTRY_LEFT_IDX_SHIFT);
ASMAtomicWriteU64(&pL2Entry->u64GCPtrKeyAndBpHnd1, u64GCPtrKeyAndBpHnd1);
ASMAtomicWriteU64(&pL2Entry->u64LeftRightIdxDepthBpHnd2, u64LeftRightIdxDepthBpHnd2);
}
/**
* Updates the given L2 table entry with the new pointers.
*
* @param pL2Entry The L2 entry to update.
* @param idxL2Left The new left L2 table index.
* @param idxL2Right The new right L2 table index.
* @param iDepth The new depth of the tree.
*/
DECLINLINE(void) dbgfBpL2TblEntryUpdate(PDBGFBPL2ENTRY pL2Entry, uint32_t idxL2Left, uint32_t idxL2Right,
uint8_t iDepth)
{
uint64_t u64LeftRightIdxDepthBpHnd2 = ASMAtomicReadU64(&pL2Entry->u64LeftRightIdxDepthBpHnd2) & DBGF_BP_L2_ENTRY_BP_2ND_L2_ENTRY_MASK;
u64LeftRightIdxDepthBpHnd2 |= ((uint64_t)iDepth << DBGF_BP_L2_ENTRY_DEPTH_SHIFT)
| ((uint64_t)idxL2Right << DBGF_BP_L2_ENTRY_RIGHT_IDX_SHIFT)
| ((uint64_t)idxL2Left << DBGF_BP_L2_ENTRY_LEFT_IDX_SHIFT);
ASMAtomicWriteU64(&pL2Entry->u64LeftRightIdxDepthBpHnd2, u64LeftRightIdxDepthBpHnd2);
}
/**
* Updates the given L2 table entry with the left pointer.
*
* @param pL2Entry The L2 entry to update.
* @param idxL2Left The new left L2 table index.
* @param iDepth The new depth of the tree.
*/
DECLINLINE(void) dbgfBpL2TblEntryUpdateLeft(PDBGFBPL2ENTRY pL2Entry, uint32_t idxL2Left, uint8_t iDepth)
{
uint64_t u64LeftRightIdxDepthBpHnd2 = ASMAtomicReadU64(&pL2Entry->u64LeftRightIdxDepthBpHnd2) & ( DBGF_BP_L2_ENTRY_BP_2ND_L2_ENTRY_MASK
| DBGF_BP_L2_ENTRY_RIGHT_IDX_MASK);
u64LeftRightIdxDepthBpHnd2 |= ((uint64_t)iDepth << DBGF_BP_L2_ENTRY_DEPTH_SHIFT)
| ((uint64_t)idxL2Left << DBGF_BP_L2_ENTRY_LEFT_IDX_SHIFT);
ASMAtomicWriteU64(&pL2Entry->u64LeftRightIdxDepthBpHnd2, u64LeftRightIdxDepthBpHnd2);
}
/**
* Updates the given L2 table entry with the right pointer.
*
* @param pL2Entry The L2 entry to update.
* @param idxL2Right The new right L2 table index.
* @param iDepth The new depth of the tree.
*/
DECLINLINE(void) dbgfBpL2TblEntryUpdateRight(PDBGFBPL2ENTRY pL2Entry, uint32_t idxL2Right, uint8_t iDepth)
{
uint64_t u64LeftRightIdxDepthBpHnd2 = ASMAtomicReadU64(&pL2Entry->u64LeftRightIdxDepthBpHnd2) & ( DBGF_BP_L2_ENTRY_BP_2ND_L2_ENTRY_MASK
| DBGF_BP_L2_ENTRY_LEFT_IDX_MASK);
u64LeftRightIdxDepthBpHnd2 |= ((uint64_t)iDepth << DBGF_BP_L2_ENTRY_DEPTH_SHIFT)
| ((uint64_t)idxL2Right << DBGF_BP_L2_ENTRY_RIGHT_IDX_SHIFT);
ASMAtomicWriteU64(&pL2Entry->u64LeftRightIdxDepthBpHnd2, u64LeftRightIdxDepthBpHnd2);
}
#ifdef IN_RING3
/**
* Returns the internal breakpoint owner state for the given handle.
*
* @returns Pointer to the internal breakpoint owner state or NULL if the handle is invalid.
* @param pUVM The user mode VM handle.
* @param hBpOwner The breakpoint owner handle to resolve.
*/
DECLINLINE(PDBGFBPOWNERINT) dbgfR3BpOwnerGetByHnd(PUVM pUVM, DBGFBPOWNER hBpOwner)
{
AssertReturn(hBpOwner < DBGF_BP_OWNER_COUNT_MAX, NULL);
AssertPtrReturn(pUVM->dbgf.s.pbmBpOwnersAllocR3, NULL);
AssertReturn(ASMBitTest(pUVM->dbgf.s.pbmBpOwnersAllocR3, hBpOwner), NULL);
return &pUVM->dbgf.s.paBpOwnersR3[hBpOwner];
}
#endif
#endif /* !VMM_INCLUDED_SRC_include_DBGFInline_h */
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