process.cc (14022:a7cdc33dab35) process.cc (14024:abe47b13653d)
1/*
2 * Copyright (c) 2014-2016 Advanced Micro Devices, Inc.
3 * Copyright (c) 2012 ARM Limited
4 * All rights reserved
5 *
6 * The license below extends only to copyright in the software and shall
7 * not be construed as granting a license to any other intellectual
8 * property including but not limited to intellectual property relating

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157 /**
158 * Share the process memory address space between the new process
159 * and the old process. Changes in one will be visible in the other
160 * due to the pointer use.
161 */
162 delete np->pTable;
163 np->pTable = pTable;
164 auto &proxy = dynamic_cast<SETranslatingPortProxy &>(
1/*
2 * Copyright (c) 2014-2016 Advanced Micro Devices, Inc.
3 * Copyright (c) 2012 ARM Limited
4 * All rights reserved
5 *
6 * The license below extends only to copyright in the software and shall
7 * not be construed as granting a license to any other intellectual
8 * property including but not limited to intellectual property relating

--- 148 unchanged lines hidden (view full) ---

157 /**
158 * Share the process memory address space between the new process
159 * and the old process. Changes in one will be visible in the other
160 * due to the pointer use.
161 */
162 delete np->pTable;
163 np->pTable = pTable;
164 auto &proxy = dynamic_cast<SETranslatingPortProxy &>(
165 ntc->getMemProxy());
165 ntc->getVirtProxy());
166 proxy.setPageTable(np->pTable);
167
168 np->memState = memState;
169 } else {
170 /**
171 * Duplicate the process memory address space. The state needs to be
172 * copied over (rather than using pointers to share everything).
173 */

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306Process::replicatePage(Addr vaddr, Addr new_paddr, ThreadContext *old_tc,
307 ThreadContext *new_tc, bool allocate_page)
308{
309 if (allocate_page)
310 new_paddr = system->allocPhysPages(1);
311
312 // Read from old physical page.
313 uint8_t *buf_p = new uint8_t[PageBytes];
166 proxy.setPageTable(np->pTable);
167
168 np->memState = memState;
169 } else {
170 /**
171 * Duplicate the process memory address space. The state needs to be
172 * copied over (rather than using pointers to share everything).
173 */

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306Process::replicatePage(Addr vaddr, Addr new_paddr, ThreadContext *old_tc,
307 ThreadContext *new_tc, bool allocate_page)
308{
309 if (allocate_page)
310 new_paddr = system->allocPhysPages(1);
311
312 // Read from old physical page.
313 uint8_t *buf_p = new uint8_t[PageBytes];
314 old_tc->getMemProxy().readBlob(vaddr, buf_p, PageBytes);
314 old_tc->getVirtProxy().readBlob(vaddr, buf_p, PageBytes);
315
316 // Create new mapping in process address space by clobbering existing
317 // mapping (if any existed) and then write to the new physical page.
318 bool clobber = true;
319 pTable->map(vaddr, new_paddr, PageBytes, clobber);
315
316 // Create new mapping in process address space by clobbering existing
317 // mapping (if any existed) and then write to the new physical page.
318 bool clobber = true;
319 pTable->map(vaddr, new_paddr, PageBytes, clobber);
320 new_tc->getMemProxy().writeBlob(vaddr, buf_p, PageBytes);
320 new_tc->getVirtProxy().writeBlob(vaddr, buf_p, PageBytes);
321 delete[] buf_p;
322}
323
324bool
325Process::fixupStackFault(Addr vaddr)
326{
327 Addr stack_min = memState->getStackMin();
328 Addr stack_base = memState->getStackBase();

--- 219 unchanged lines hidden --- 		321 delete[] buf_p;
322}
323
324bool
325Process::fixupStackFault(Addr vaddr)
326{
327 Addr stack_min = memState->getStackMin();
328 Addr stack_base = memState->getStackBase();

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