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Diffstat (limited to 'src/VBox/VMM/include/DBGFInline.h')
| -rw-r--r-- | src/VBox/VMM/include/DBGFInline.h | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/src/VBox/VMM/include/DBGFInline.h b/src/VBox/VMM/include/DBGFInline.h new file mode 100644 index 00000000..0737c681 --- /dev/null +++ b/src/VBox/VMM/include/DBGFInline.h @@ -0,0 +1,135 @@ +/* $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 */ |