memobj-r0drv-solaris.c@ 78253

Last change on this file since 78253 was 78120, checked in by vboxsync, 6 years ago
IPRT: Started adding a RTR0MemObjMapUserEx function that takes offSub and cbSub. bugref:9217
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File size: 40.4 KB

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1	/* $Id: memobj-r0drv-solaris.c 78120 2019-04-12 13:20:50Z vboxsync $ */
2	/** @file
3	* IPRT - Ring-0 Memory Objects, Solaris.
4	*/
5
6	/*
7	* Copyright (C) 2006-2019 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*
17	* The contents of this file may alternatively be used under the terms
18	* of the Common Development and Distribution License Version 1.0
19	* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
20	* VirtualBox OSE distribution, in which case the provisions of the
21	* CDDL are applicable instead of those of the GPL.
22	*
23	* You may elect to license modified versions of this file under the
24	* terms and conditions of either the GPL or the CDDL or both.
25	*/
26
27
28	/*********************************************************************************************************************************
29	* Header Files *
30	*********************************************************************************************************************************/
31	#include "the-solaris-kernel.h"
32	#include "internal/iprt.h"
33	#include <iprt/memobj.h>
34
35	#include <iprt/asm.h>
36	#include <iprt/assert.h>
37	#include <iprt/err.h>
38	#include <iprt/log.h>
39	#include <iprt/mem.h>
40	#include <iprt/param.h>
41	#include <iprt/process.h>
42	#include "internal/memobj.h"
43	#include "memobj-r0drv-solaris.h"
44
45
46	/*********************************************************************************************************************************
47	* Defined Constants And Macros *
48	*********************************************************************************************************************************/
49	#define SOL_IS_KRNL_ADDR(vx) ((uintptr_t)(vx) >= kernelbase)
50
51
52	/*********************************************************************************************************************************
53	* Structures and Typedefs *
54	*********************************************************************************************************************************/
55	/**
56	* The Solaris version of the memory object structure.
57	*/
58	typedef struct RTR0MEMOBJSOL
59	{
60	/** The core structure. */
61	RTR0MEMOBJINTERNAL Core;
62	/** Pointer to kernel memory cookie. */
63	ddi_umem_cookie_t Cookie;
64	/** Shadow locked pages. */
65	void *pvHandle;
66	/** Access during locking. */
67	int fAccess;
68	/** Set if large pages are involved in an RTR0MEMOBJTYPE_PHYS
69	* allocation. */
70	bool fLargePage;
71	/** Whether we have individual pages or a kernel-mapped virtual memory block in
72	* an RTR0MEMOBJTYPE_PHYS_NC allocation. */
73	bool fIndivPages;
74	} RTR0MEMOBJSOL, *PRTR0MEMOBJSOL;
75
76
77	/*********************************************************************************************************************************
78	* Global Variables *
79	*********************************************************************************************************************************/
80	static vnode_t g_PageVnode;
81	static kmutex_t g_OffsetMtx;
82	static u_offset_t g_offPage;
83
84	static vnode_t g_LargePageVnode;
85	static kmutex_t g_LargePageOffsetMtx;
86	static u_offset_t g_offLargePage;
87	static bool g_fLargePageNoReloc;
88
89
90	/**
91	* Returns the physical address for a virtual address.
92	*
93	* @param pv The virtual address.
94	*
95	* @returns The physical address corresponding to @a pv.
96	*/
97	static uint64_t rtR0MemObjSolVirtToPhys(void *pv)
98	{
99	struct hat *pHat = NULL;
100	pfn_t PageFrameNum = 0;
101	uintptr_t uVirtAddr = (uintptr_t)pv;
102
103	if (SOL_IS_KRNL_ADDR(pv))
104	pHat = kas.a_hat;
105	else
106	{
107	proc_t pProcess = (proc_t )RTR0ProcHandleSelf();
108	AssertRelease(pProcess);
109	pHat = pProcess->p_as->a_hat;
110	}
111
112	PageFrameNum = hat_getpfnum(pHat, (caddr_t)(uVirtAddr & PAGEMASK));
113	AssertReleaseMsg(PageFrameNum != PFN_INVALID, ("rtR0MemObjSolVirtToPhys failed. pv=%p\n", pv));
114	return (((uint64_t)PageFrameNum << PAGE_SHIFT) \| (uVirtAddr & PAGE_OFFSET_MASK));
115	}
116
117
118	/**
119	* Returns the physical address for a page.
120	*
121	* @param pPage Pointer to the page.
122	*
123	* @returns The physical address for a page.
124	*/
125	static inline uint64_t rtR0MemObjSolPagePhys(page_t *pPage)
126	{
127	AssertPtr(pPage);
128	pfn_t PageFrameNum = page_pptonum(pPage);
129	AssertReleaseMsg(PageFrameNum != PFN_INVALID, ("rtR0MemObjSolPagePhys failed pPage=%p\n"));
130	return (uint64_t)PageFrameNum << PAGE_SHIFT;
131	}
132
133
134	/**
135	* Allocates one page.
136	*
137	* @param virtAddr The virtual address to which this page maybe mapped in
138	* the future.
139	*
140	* @returns Pointer to the allocated page, NULL on failure.
141	*/
142	static page_t *rtR0MemObjSolPageAlloc(caddr_t virtAddr)
143	{
144	u_offset_t offPage;
145	seg_t KernelSeg;
146
147	/*
148	* 16777215 terabytes of total memory for all VMs or
149	* restart 8000 1GB VMs 2147483 times until wraparound!
150	*/
151	mutex_enter(&g_OffsetMtx);
152	AssertCompileSize(u_offset_t, sizeof(uint64_t)); NOREF(RTASSERTVAR);
153	g_offPage = RT_ALIGN_64(g_offPage, PAGE_SIZE) + PAGE_SIZE;
154	offPage = g_offPage;
155	mutex_exit(&g_OffsetMtx);
156
157	KernelSeg.s_as = &kas;
158	page_t *pPage = page_create_va(&g_PageVnode, offPage, PAGE_SIZE, PG_WAIT \| PG_NORELOC, &KernelSeg, virtAddr);
159	if (RT_LIKELY(pPage))
160	{
161	/*
162	* Lock this page into memory "long term" to prevent this page from being paged out
163	* when we drop the page lock temporarily (during free). Downgrade to a shared lock
164	* to prevent page relocation.
165	*/
166	page_pp_lock(pPage, 0 /* COW /, 1 / Kernel */);
167	page_io_unlock(pPage);
168	page_downgrade(pPage);
169	Assert(PAGE_LOCKED_SE(pPage, SE_SHARED));
170	}
171
172	return pPage;
173	}
174
175
176	/**
177	* Destroys an allocated page.
178	*
179	* @param pPage Pointer to the page to be destroyed.
180	* @remarks This function expects page in @c pPage to be shared locked.
181	*/
182	static void rtR0MemObjSolPageDestroy(page_t *pPage)
183	{
184	/*
185	* We need to exclusive lock the pages before freeing them, if upgrading the shared lock to exclusive fails,
186	* drop the page lock and look it up from the hash. Record the page offset before we drop the page lock as
187	* we cannot touch any page_t members once the lock is dropped.
188	*/
189	AssertPtr(pPage);
190	Assert(PAGE_LOCKED_SE(pPage, SE_SHARED));
191
192	u_offset_t offPage = pPage->p_offset;
193	int rc = page_tryupgrade(pPage);
194	if (!rc)
195	{
196	page_unlock(pPage);
197	page_t *pFoundPage = page_lookup(&g_PageVnode, offPage, SE_EXCL);
198
199	/*
200	* Since we allocated the pages as PG_NORELOC we should only get back the exact page always.
201	*/
202	AssertReleaseMsg(pFoundPage == pPage, ("Page lookup failed %p:%llx returned %p, expected %p\n",
203	&g_PageVnode, offPage, pFoundPage, pPage));
204	}
205	Assert(PAGE_LOCKED_SE(pPage, SE_EXCL));
206	page_pp_unlock(pPage, 0 /* COW /, 1 / Kernel */);
207	page_destroy(pPage, 0 /* move it to the free list */);
208	}
209
210
211	/* Currently not used on 32-bits, define it to shut up gcc. */
212	#if HC_ARCH_BITS == 64
213	/**
214	* Allocates physical, non-contiguous memory of pages.
215	*
216	* @param puPhys Where to store the physical address of first page. Optional,
217	* can be NULL.
218	* @param cb The size of the allocation.
219	*
220	* @return Array of allocated pages, NULL on failure.
221	*/
222	static page_t *rtR0MemObjSolPagesAlloc(uint64_t puPhys, size_t cb)
223	{
224	/*
225	* VM1:
226	* The page freelist and cachelist both hold pages that are not mapped into any address space.
227	* The cachelist is not really free pages but when memory is exhausted they'll be moved to the
228	* free lists, it's the total of the free+cache list that we see on the 'free' column in vmstat.
229	*
230	* VM2:
231	* @todo Document what happens behind the scenes in VM2 regarding the free and cachelist.
232	*/
233
234	/*
235	* Non-pageable memory reservation request for _4K pages, don't sleep.
236	*/
237	size_t cPages = (cb + PAGE_SIZE - 1) >> PAGE_SHIFT;
238	int rc = page_resv(cPages, KM_NOSLEEP);
239	if (rc)
240	{
241	size_t cbPages = cPages * sizeof(page_t *);
242	page_t **ppPages = kmem_zalloc(cbPages, KM_SLEEP);
243	if (RT_LIKELY(ppPages))
244	{
245	/*
246	* Get pages from kseg, the 'virtAddr' here is only for colouring but unfortunately
247	* we don't yet have the 'virtAddr' to which this memory may be mapped.
248	*/
249	caddr_t virtAddr = 0;
250	for (size_t i = 0; i < cPages; i++, virtAddr += PAGE_SIZE)
251	{
252	/*
253	* Get a page from the free list locked exclusively. The page will be named (hashed in)
254	* and we rely on it during free. The page we get will be shared locked to prevent the page
255	* from being relocated.
256	*/
257	page_t *pPage = rtR0MemObjSolPageAlloc(virtAddr);
258	if (RT_UNLIKELY(!pPage))
259	{
260	/*
261	* No page found, release whatever pages we grabbed so far.
262	*/
263	for (size_t k = 0; k < i; k++)
264	rtR0MemObjSolPageDestroy(ppPages[k]);
265	kmem_free(ppPages, cbPages);
266	page_unresv(cPages);
267	return NULL;
268	}
269
270	ppPages[i] = pPage;
271	}
272
273	if (puPhys)
274	*puPhys = rtR0MemObjSolPagePhys(ppPages[0]);
275	return ppPages;
276	}
277
278	page_unresv(cPages);
279	}
280
281	return NULL;
282	}
283	#endif /* HC_ARCH_BITS == 64 */
284
285
286	/**
287	* Frees the allocates pages.
288	*
289	* @param ppPages Pointer to the page list.
290	* @param cbPages Size of the allocation.
291	*/
292	static void rtR0MemObjSolPagesFree(page_t **ppPages, size_t cb)
293	{
294	size_t cPages = (cb + PAGE_SIZE - 1) >> PAGE_SHIFT;
295	size_t cbPages = cPages * sizeof(page_t *);
296	for (size_t iPage = 0; iPage < cPages; iPage++)
297	rtR0MemObjSolPageDestroy(ppPages[iPage]);
298
299	kmem_free(ppPages, cbPages);
300	page_unresv(cPages);
301	}
302
303
304	/**
305	* Allocates one large page.
306	*
307	* @param puPhys Where to store the physical address of the allocated
308	* page. Optional, can be NULL.
309	* @param cbLargePage Size of the large page.
310	*
311	* @returns Pointer to a list of pages that cover the large page, NULL on
312	* failure.
313	*/
314	static page_t *rtR0MemObjSolLargePageAlloc(uint64_t puPhys, size_t cbLargePage)
315	{
316	/*
317	* Check PG_NORELOC support for large pages. Using this helps prevent _1G page
318	* fragementation on systems that support it.
319	*/
320	static bool fPageNoRelocChecked = false;
321	if (fPageNoRelocChecked == false)
322	{
323	fPageNoRelocChecked = true;
324	g_fLargePageNoReloc = false;
325	if ( g_pfnrtR0Sol_page_noreloc_supported
326	&& g_pfnrtR0Sol_page_noreloc_supported(cbLargePage))
327	{
328	g_fLargePageNoReloc = true;
329	}
330	}
331
332	/*
333	* Non-pageable memory reservation request for _4K pages, don't sleep.
334	*/
335	size_t cPages = (cbLargePage + PAGE_SIZE - 1) >> PAGE_SHIFT;
336	size_t cbPages = cPages * sizeof(page_t *);
337	u_offset_t offPage = 0;
338	int rc = page_resv(cPages, KM_NOSLEEP);
339	if (rc)
340	{
341	page_t **ppPages = kmem_zalloc(cbPages, KM_SLEEP);
342	if (RT_LIKELY(ppPages))
343	{
344	mutex_enter(&g_LargePageOffsetMtx);
345	AssertCompileSize(u_offset_t, sizeof(uint64_t)); NOREF(RTASSERTVAR);
346	g_offLargePage = RT_ALIGN_64(g_offLargePage, cbLargePage) + cbLargePage;
347	offPage = g_offLargePage;
348	mutex_exit(&g_LargePageOffsetMtx);
349
350	seg_t KernelSeg;
351	KernelSeg.s_as = &kas;
352	page_t *pRootPage = page_create_va_large(&g_LargePageVnode, offPage, cbLargePage,
353	PG_EXCL \| (g_fLargePageNoReloc ? PG_NORELOC : 0), &KernelSeg,
354	0 /* vaddr /,NULL / locality group */);
355	if (pRootPage)
356	{
357	/*
358	* Split it into sub-pages, downgrade each page to a shared lock to prevent page relocation.
359	*/
360	page_t *pPageList = pRootPage;
361	for (size_t iPage = 0; iPage < cPages; iPage++)
362	{
363	page_t *pPage = pPageList;
364	AssertPtr(pPage);
365	AssertMsg(page_pptonum(pPage) == iPage + page_pptonum(pRootPage),
366	("%p:%lx %lx+%lx\n", pPage, page_pptonum(pPage), iPage, page_pptonum(pRootPage)));
367	AssertMsg(pPage->p_szc == pRootPage->p_szc, ("Size code mismatch %p %d %d\n", pPage,
368	(int)pPage->p_szc, (int)pRootPage->p_szc));
369
370	/*
371	* Lock the page into memory "long term". This prevents callers of page_try_demote_pages() (such as the
372	* pageout scanner) from demoting the large page into smaller pages while we temporarily release the
373	* exclusive lock (during free). We pass "0, 1" since we've already accounted for availrmem during
374	* page_resv().
375	*/
376	page_pp_lock(pPage, 0 /* COW /, 1 / Kernel */);
377
378	page_sub(&pPageList, pPage);
379	page_io_unlock(pPage);
380	page_downgrade(pPage);
381	Assert(PAGE_LOCKED_SE(pPage, SE_SHARED));
382
383	ppPages[iPage] = pPage;
384	}
385	Assert(pPageList == NULL);
386	Assert(ppPages[0] == pRootPage);
387
388	uint64_t uPhys = rtR0MemObjSolPagePhys(pRootPage);
389	AssertMsg(!(uPhys & (cbLargePage - 1)), ("%llx %zx\n", uPhys, cbLargePage));
390	if (puPhys)
391	*puPhys = uPhys;
392	return ppPages;
393	}
394
395	/*
396	* Don't restore offPrev in case of failure (race condition), we have plenty of offset space.
397	* The offset must be unique (for the same vnode) or we'll encounter panics on page_create_va_large().
398	*/
399	kmem_free(ppPages, cbPages);
400	}
401
402	page_unresv(cPages);
403	}
404	return NULL;
405	}
406
407
408	/**
409	* Frees the large page.
410	*
411	* @param ppPages Pointer to the list of small pages that cover the
412	* large page.
413	* @param cbLargePage Size of the allocation (i.e. size of the large
414	* page).
415	*/
416	static void rtR0MemObjSolLargePageFree(page_t **ppPages, size_t cbLargePage)
417	{
418	Assert(ppPages);
419	Assert(cbLargePage > PAGE_SIZE);
420
421	bool fDemoted = false;
422	size_t cPages = (cbLargePage + PAGE_SIZE - 1) >> PAGE_SHIFT;
423	size_t cbPages = cPages * sizeof(page_t *);
424	page_t *pPageList = ppPages[0];
425
426	for (size_t iPage = 0; iPage < cPages; iPage++)
427	{
428	/*
429	* We need the pages exclusively locked, try upgrading the shared lock.
430	* If it fails, drop the shared page lock (cannot access any page_t members once this is done)
431	* and lookup the page from the page hash locking it exclusively.
432	*/
433	page_t *pPage = ppPages[iPage];
434	u_offset_t offPage = pPage->p_offset;
435	int rc = page_tryupgrade(pPage);
436	if (!rc)
437	{
438	page_unlock(pPage);
439	page_t *pFoundPage = page_lookup(&g_LargePageVnode, offPage, SE_EXCL);
440	AssertRelease(pFoundPage);
441
442	if (g_fLargePageNoReloc)
443	{
444	/*
445	* This can only be guaranteed if PG_NORELOC is used while allocating the pages.
446	*/
447	AssertReleaseMsg(pFoundPage == pPage,
448	("lookup failed %p:%llu returned %p, expected %p\n", &g_LargePageVnode, offPage,
449	pFoundPage, pPage));
450	}
451
452	/*
453	* Check for page demotion (regardless of relocation). Some places in Solaris (e.g. VM1 page_retire())
454	* could possibly demote the large page to _4K pages between our call to page_unlock() and page_lookup().
455	*/
456	if (page_get_pagecnt(pFoundPage->p_szc) == 1) /* Base size of only _4K associated with this page. */
457	fDemoted = true;
458	pPage = pFoundPage;
459	ppPages[iPage] = pFoundPage;
460	}
461	Assert(PAGE_LOCKED_SE(pPage, SE_EXCL));
462	page_pp_unlock(pPage, 0 /* COW /, 1 / Kernel */);
463	}
464
465	if (fDemoted)
466	{
467	for (size_t iPage = 0; iPage < cPages; iPage++)
468	{
469	Assert(page_get_pagecnt(ppPages[iPage]->p_szc) == 1);
470	page_destroy(ppPages[iPage], 0 /* move it to the free list */);
471	}
472	}
473	else
474	{
475	/*
476	* Although we shred the adjacent pages in the linked list, page_destroy_pages works on
477	* adjacent pages via array increments. So this does indeed free all the pages.
478	*/
479	AssertPtr(pPageList);
480	page_destroy_pages(pPageList);
481	}
482	kmem_free(ppPages, cbPages);
483	page_unresv(cPages);
484	}
485
486
487	/**
488	* Unmaps kernel/user-space mapped memory.
489	*
490	* @param pv Pointer to the mapped memory block.
491	* @param cb Size of the memory block.
492	*/
493	static void rtR0MemObjSolUnmap(void *pv, size_t cb)
494	{
495	if (SOL_IS_KRNL_ADDR(pv))
496	{
497	hat_unload(kas.a_hat, pv, cb, HAT_UNLOAD \| HAT_UNLOAD_UNLOCK);
498	vmem_free(heap_arena, pv, cb);
499	}
500	else
501	{
502	struct as pAddrSpace = ((proc_t )RTR0ProcHandleSelf())->p_as;
503	AssertPtr(pAddrSpace);
504	as_rangelock(pAddrSpace);
505	as_unmap(pAddrSpace, pv, cb);
506	as_rangeunlock(pAddrSpace);
507	}
508	}
509
510
511	/**
512	* Lock down memory mappings for a virtual address.
513	*
514	* @param pv Pointer to the memory to lock down.
515	* @param cb Size of the memory block.
516	* @param fAccess Page access rights (S_READ, S_WRITE, S_EXEC)
517	*
518	* @returns IPRT status code.
519	*/
520	static int rtR0MemObjSolLock(void *pv, size_t cb, int fPageAccess)
521	{
522	/*
523	* Kernel memory mappings on x86/amd64 are always locked, only handle user-space memory.
524	*/
525	if (!SOL_IS_KRNL_ADDR(pv))
526	{
527	proc_t pProc = (proc_t )RTR0ProcHandleSelf();
528	AssertPtr(pProc);
529	faultcode_t rc = as_fault(pProc->p_as->a_hat, pProc->p_as, (caddr_t)pv, cb, F_SOFTLOCK, fPageAccess);
530	if (rc)
531	{
532	LogRel(("rtR0MemObjSolLock failed for pv=%pv cb=%lx fPageAccess=%d rc=%d\n", pv, cb, fPageAccess, rc));
533	return VERR_LOCK_FAILED;
534	}
535	}
536	return VINF_SUCCESS;
537	}
538
539
540	/**
541	* Unlock memory mappings for a virtual address.
542	*
543	* @param pv Pointer to the locked memory.
544	* @param cb Size of the memory block.
545	* @param fPageAccess Page access rights (S_READ, S_WRITE, S_EXEC).
546	*/
547	static void rtR0MemObjSolUnlock(void *pv, size_t cb, int fPageAccess)
548	{
549	if (!SOL_IS_KRNL_ADDR(pv))
550	{
551	proc_t pProcess = (proc_t )RTR0ProcHandleSelf();
552	AssertPtr(pProcess);
553	as_fault(pProcess->p_as->a_hat, pProcess->p_as, (caddr_t)pv, cb, F_SOFTUNLOCK, fPageAccess);
554	}
555	}
556
557
558	/**
559	* Maps a list of physical pages into user address space.
560	*
561	* @param pVirtAddr Where to store the virtual address of the mapping.
562	* @param fPageAccess Page access rights (PROT_READ, PROT_WRITE,
563	* PROT_EXEC)
564	* @param paPhysAddrs Array of physical addresses to pages.
565	* @param cb Size of memory being mapped.
566	*
567	* @returns IPRT status code.
568	*/
569	static int rtR0MemObjSolUserMap(caddr_t pVirtAddr, unsigned fPageAccess, uint64_t paPhysAddrs, size_t cb, size_t cbPageSize)
570	{
571	struct as pAddrSpace = ((proc_t )RTR0ProcHandleSelf())->p_as;
572	int rc = VERR_INTERNAL_ERROR;
573	SEGVBOX_CRARGS Args;
574
575	Args.paPhysAddrs = paPhysAddrs;
576	Args.fPageAccess = fPageAccess;
577	Args.cbPageSize = cbPageSize;
578
579	as_rangelock(pAddrSpace);
580	map_addr(pVirtAddr, cb, 0 /* offset /, 0 / vacalign */, MAP_SHARED);
581	if (*pVirtAddr != NULL)
582	rc = as_map(pAddrSpace, *pVirtAddr, cb, rtR0SegVBoxSolCreate, &Args);
583	else
584	rc = ENOMEM;
585	as_rangeunlock(pAddrSpace);
586
587	return RTErrConvertFromErrno(rc);
588	}
589
590
591	DECLHIDDEN(int) rtR0MemObjNativeFree(RTR0MEMOBJ pMem)
592	{
593	PRTR0MEMOBJSOL pMemSolaris = (PRTR0MEMOBJSOL)pMem;
594
595	switch (pMemSolaris->Core.enmType)
596	{
597	case RTR0MEMOBJTYPE_LOW:
598	rtR0SolMemFree(pMemSolaris->Core.pv, pMemSolaris->Core.cb);
599	break;
600
601	case RTR0MEMOBJTYPE_PHYS:
602	if (pMemSolaris->Core.u.Phys.fAllocated)
603	{
604	if (pMemSolaris->fLargePage)
605	rtR0MemObjSolLargePageFree(pMemSolaris->pvHandle, pMemSolaris->Core.cb);
606	else
607	rtR0SolMemFree(pMemSolaris->Core.pv, pMemSolaris->Core.cb);
608	}
609	break;
610
611	case RTR0MEMOBJTYPE_PHYS_NC:
612	if (pMemSolaris->fIndivPages)
613	rtR0MemObjSolPagesFree(pMemSolaris->pvHandle, pMemSolaris->Core.cb);
614	else
615	rtR0SolMemFree(pMemSolaris->Core.pv, pMemSolaris->Core.cb);
616	break;
617
618	case RTR0MEMOBJTYPE_PAGE:
619	ddi_umem_free(pMemSolaris->Cookie);
620	break;
621
622	case RTR0MEMOBJTYPE_LOCK:
623	rtR0MemObjSolUnlock(pMemSolaris->Core.pv, pMemSolaris->Core.cb, pMemSolaris->fAccess);
624	break;
625
626	case RTR0MEMOBJTYPE_MAPPING:
627	rtR0MemObjSolUnmap(pMemSolaris->Core.pv, pMemSolaris->Core.cb);
628	break;
629
630	case RTR0MEMOBJTYPE_RES_VIRT:
631	{
632	if (pMemSolaris->Core.u.ResVirt.R0Process == NIL_RTR0PROCESS)
633	vmem_xfree(heap_arena, pMemSolaris->Core.pv, pMemSolaris->Core.cb);
634	else
635	AssertFailed();
636	break;
637	}
638
639	case RTR0MEMOBJTYPE_CONT: /* we don't use this type here. */
640	default:
641	AssertMsgFailed(("enmType=%d\n", pMemSolaris->Core.enmType));
642	return VERR_INTERNAL_ERROR;
643	}
644
645	return VINF_SUCCESS;
646	}
647
648
649	DECLHIDDEN(int) rtR0MemObjNativeAllocPage(PPRTR0MEMOBJINTERNAL ppMem, size_t cb, bool fExecutable)
650	{
651	/* Create the object. */
652	PRTR0MEMOBJSOL pMemSolaris = (PRTR0MEMOBJSOL)rtR0MemObjNew(sizeof(*pMemSolaris), RTR0MEMOBJTYPE_PAGE, NULL, cb);
653	if (RT_UNLIKELY(!pMemSolaris))
654	return VERR_NO_MEMORY;
655
656	void *pvMem = ddi_umem_alloc(cb, DDI_UMEM_SLEEP, &pMemSolaris->Cookie);
657	if (RT_UNLIKELY(!pvMem))
658	{
659	rtR0MemObjDelete(&pMemSolaris->Core);
660	return VERR_NO_PAGE_MEMORY;
661	}
662
663	pMemSolaris->Core.pv = pvMem;
664	pMemSolaris->pvHandle = NULL;
665	*ppMem = &pMemSolaris->Core;
666	return VINF_SUCCESS;
667	}
668
669
670	DECLHIDDEN(int) rtR0MemObjNativeAllocLow(PPRTR0MEMOBJINTERNAL ppMem, size_t cb, bool fExecutable)
671	{
672	NOREF(fExecutable);
673
674	/* Create the object */
675	PRTR0MEMOBJSOL pMemSolaris = (PRTR0MEMOBJSOL)rtR0MemObjNew(sizeof(*pMemSolaris), RTR0MEMOBJTYPE_LOW, NULL, cb);
676	if (!pMemSolaris)
677	return VERR_NO_MEMORY;
678
679	/* Allocate physically low page-aligned memory. */
680	uint64_t uPhysHi = _4G - 1;
681	void pvMem = rtR0SolMemAlloc(uPhysHi, NULL / puPhys /, cb, PAGE_SIZE, false / fContig */);
682	if (RT_UNLIKELY(!pvMem))
683	{
684	rtR0MemObjDelete(&pMemSolaris->Core);
685	return VERR_NO_LOW_MEMORY;
686	}
687	pMemSolaris->Core.pv = pvMem;
688	pMemSolaris->pvHandle = NULL;
689	*ppMem = &pMemSolaris->Core;
690	return VINF_SUCCESS;
691	}
692
693
694	DECLHIDDEN(int) rtR0MemObjNativeAllocCont(PPRTR0MEMOBJINTERNAL ppMem, size_t cb, bool fExecutable)
695	{
696	NOREF(fExecutable);
697	return rtR0MemObjNativeAllocPhys(ppMem, cb, _4G - 1, PAGE_SIZE /* alignment */);
698	}
699
700
701	DECLHIDDEN(int) rtR0MemObjNativeAllocPhysNC(PPRTR0MEMOBJINTERNAL ppMem, size_t cb, RTHCPHYS PhysHighest)
702	{
703	#if HC_ARCH_BITS == 64
704	PRTR0MEMOBJSOL pMemSolaris = (PRTR0MEMOBJSOL)rtR0MemObjNew(sizeof(*pMemSolaris), RTR0MEMOBJTYPE_PHYS_NC, NULL, cb);
705	if (RT_UNLIKELY(!pMemSolaris))
706	return VERR_NO_MEMORY;
707
708	if (PhysHighest == NIL_RTHCPHYS)
709	{
710	uint64_t PhysAddr = UINT64_MAX;
711	void *pvPages = rtR0MemObjSolPagesAlloc(&PhysAddr, cb);
712	if (!pvPages)
713	{
714	LogRel(("rtR0MemObjNativeAllocPhysNC: rtR0MemObjSolPagesAlloc failed for cb=%u.\n", cb));
715	rtR0MemObjDelete(&pMemSolaris->Core);
716	return VERR_NO_MEMORY;
717	}
718	Assert(PhysAddr != UINT64_MAX);
719	Assert(!(PhysAddr & PAGE_OFFSET_MASK));
720
721	pMemSolaris->Core.pv = NULL;
722	pMemSolaris->pvHandle = pvPages;
723	pMemSolaris->fIndivPages = true;
724	*ppMem = &pMemSolaris->Core;
725	return VINF_SUCCESS;
726	}
727	else
728	{
729	/*
730	* If we must satisfy an upper limit constraint, it isn't feasible to grab individual pages.
731	* We fall back to using contig_alloc().
732	*/
733	uint64_t PhysAddr = UINT64_MAX;
734	void pvMem = rtR0SolMemAlloc(PhysHighest, &PhysAddr, cb, PAGE_SIZE, false / fContig */);
735	if (!pvMem)
736	{
737	LogRel(("rtR0MemObjNativeAllocPhysNC: rtR0SolMemAlloc failed for cb=%u PhysHighest=%RHp.\n", cb, PhysHighest));
738	rtR0MemObjDelete(&pMemSolaris->Core);
739	return VERR_NO_MEMORY;
740	}
741	Assert(PhysAddr != UINT64_MAX);
742	Assert(!(PhysAddr & PAGE_OFFSET_MASK));
743
744	pMemSolaris->Core.pv = pvMem;
745	pMemSolaris->pvHandle = NULL;
746	pMemSolaris->fIndivPages = false;
747	*ppMem = &pMemSolaris->Core;
748	return VINF_SUCCESS;
749	}
750
751	#else /* 32 bit: */
752	return VERR_NOT_SUPPORTED; /* see the RTR0MemObjAllocPhysNC specs */
753	#endif
754	}
755
756
757	DECLHIDDEN(int) rtR0MemObjNativeAllocPhys(PPRTR0MEMOBJINTERNAL ppMem, size_t cb, RTHCPHYS PhysHighest, size_t uAlignment)
758	{
759	AssertMsgReturn(PhysHighest >= 16 *_1M, ("PhysHigest=%RHp\n", PhysHighest), VERR_NOT_SUPPORTED);
760
761	PRTR0MEMOBJSOL pMemSolaris = (PRTR0MEMOBJSOL)rtR0MemObjNew(sizeof(*pMemSolaris), RTR0MEMOBJTYPE_PHYS, NULL, cb);
762	if (RT_UNLIKELY(!pMemSolaris))
763	return VERR_NO_MEMORY;
764
765	/*
766	* Allocating one large page gets special treatment.
767	*/
768	static uint32_t s_cbLargePage = UINT32_MAX;
769	if (s_cbLargePage == UINT32_MAX)
770	{
771	if (page_num_pagesizes() > 1)
772	ASMAtomicWriteU32(&s_cbLargePage, page_get_pagesize(1)); /* Page-size code 1 maps to _2M on Solaris x86/amd64. */
773	else
774	ASMAtomicWriteU32(&s_cbLargePage, 0);
775	}
776
777	uint64_t PhysAddr;
778	if ( cb == s_cbLargePage
779	&& cb == uAlignment
780	&& PhysHighest == NIL_RTHCPHYS)
781	{
782	/*
783	* Allocate one large page (backed by physically contiguous memory).
784	*/
785	void *pvPages = rtR0MemObjSolLargePageAlloc(&PhysAddr, cb);
786	if (RT_LIKELY(pvPages))
787	{
788	AssertMsg(!(PhysAddr & (cb - 1)), ("%RHp\n", PhysAddr));
789	pMemSolaris->Core.pv = NULL;
790	pMemSolaris->Core.u.Phys.PhysBase = PhysAddr;
791	pMemSolaris->Core.u.Phys.fAllocated = true;
792	pMemSolaris->pvHandle = pvPages;
793	pMemSolaris->fLargePage = true;
794
795	*ppMem = &pMemSolaris->Core;
796	return VINF_SUCCESS;
797	}
798	}
799	else
800	{
801	/*
802	* Allocate physically contiguous memory aligned as specified.
803	*/
804	AssertCompile(NIL_RTHCPHYS == UINT64_MAX); NOREF(RTASSERTVAR);
805	PhysAddr = PhysHighest;
806	void pvMem = rtR0SolMemAlloc(PhysHighest, &PhysAddr, cb, uAlignment, true / fContig */);
807	if (RT_LIKELY(pvMem))
808	{
809	Assert(!(PhysAddr & PAGE_OFFSET_MASK));
810	Assert(PhysAddr < PhysHighest);
811	Assert(PhysAddr + cb <= PhysHighest);
812
813	pMemSolaris->Core.pv = pvMem;
814	pMemSolaris->Core.u.Phys.PhysBase = PhysAddr;
815	pMemSolaris->Core.u.Phys.fAllocated = true;
816	pMemSolaris->pvHandle = NULL;
817	pMemSolaris->fLargePage = false;
818
819	*ppMem = &pMemSolaris->Core;
820	return VINF_SUCCESS;
821	}
822	}
823	rtR0MemObjDelete(&pMemSolaris->Core);
824	return VERR_NO_CONT_MEMORY;
825	}
826
827
828	DECLHIDDEN(int) rtR0MemObjNativeEnterPhys(PPRTR0MEMOBJINTERNAL ppMem, RTHCPHYS Phys, size_t cb, uint32_t uCachePolicy)
829	{
830	AssertReturn(uCachePolicy == RTMEM_CACHE_POLICY_DONT_CARE, VERR_NOT_SUPPORTED);
831
832	/* Create the object. */
833	PRTR0MEMOBJSOL pMemSolaris = (PRTR0MEMOBJSOL)rtR0MemObjNew(sizeof(*pMemSolaris), RTR0MEMOBJTYPE_PHYS, NULL, cb);
834	if (!pMemSolaris)
835	return VERR_NO_MEMORY;
836
837	/* There is no allocation here, it needs to be mapped somewhere first. */
838	pMemSolaris->Core.u.Phys.fAllocated = false;
839	pMemSolaris->Core.u.Phys.PhysBase = Phys;
840	pMemSolaris->Core.u.Phys.uCachePolicy = uCachePolicy;
841	*ppMem = &pMemSolaris->Core;
842	return VINF_SUCCESS;
843	}
844
845
846	DECLHIDDEN(int) rtR0MemObjNativeLockUser(PPRTR0MEMOBJINTERNAL ppMem, RTR3PTR R3Ptr, size_t cb, uint32_t fAccess,
847	RTR0PROCESS R0Process)
848	{
849	AssertReturn(R0Process == RTR0ProcHandleSelf(), VERR_INVALID_PARAMETER);
850	NOREF(fAccess);
851
852	/* Create the locking object */
853	PRTR0MEMOBJSOL pMemSolaris = (PRTR0MEMOBJSOL)rtR0MemObjNew(sizeof(pMemSolaris), RTR0MEMOBJTYPE_LOCK, (void )R3Ptr, cb);
854	if (!pMemSolaris)
855	return VERR_NO_MEMORY;
856
857	/* Lock down user pages. */
858	int fPageAccess = S_READ;
859	if (fAccess & RTMEM_PROT_WRITE)
860	fPageAccess = S_WRITE;
861	if (fAccess & RTMEM_PROT_EXEC)
862	fPageAccess = S_EXEC;
863	int rc = rtR0MemObjSolLock((void *)R3Ptr, cb, fPageAccess);
864	if (RT_FAILURE(rc))
865	{
866	LogRel(("rtR0MemObjNativeLockUser: rtR0MemObjSolLock failed rc=%d\n", rc));
867	rtR0MemObjDelete(&pMemSolaris->Core);
868	return rc;
869	}
870
871	/* Fill in the object attributes and return successfully. */
872	pMemSolaris->Core.u.Lock.R0Process = R0Process;
873	pMemSolaris->pvHandle = NULL;
874	pMemSolaris->fAccess = fPageAccess;
875	*ppMem = &pMemSolaris->Core;
876	return VINF_SUCCESS;
877	}
878
879
880	DECLHIDDEN(int) rtR0MemObjNativeLockKernel(PPRTR0MEMOBJINTERNAL ppMem, void *pv, size_t cb, uint32_t fAccess)
881	{
882	NOREF(fAccess);
883
884	PRTR0MEMOBJSOL pMemSolaris = (PRTR0MEMOBJSOL)rtR0MemObjNew(sizeof(*pMemSolaris), RTR0MEMOBJTYPE_LOCK, pv, cb);
885	if (!pMemSolaris)
886	return VERR_NO_MEMORY;
887
888	/* Lock down kernel pages. */
889	int fPageAccess = S_READ;
890	if (fAccess & RTMEM_PROT_WRITE)
891	fPageAccess = S_WRITE;
892	if (fAccess & RTMEM_PROT_EXEC)
893	fPageAccess = S_EXEC;
894	int rc = rtR0MemObjSolLock(pv, cb, fPageAccess);
895	if (RT_FAILURE(rc))
896	{
897	LogRel(("rtR0MemObjNativeLockKernel: rtR0MemObjSolLock failed rc=%d\n", rc));
898	rtR0MemObjDelete(&pMemSolaris->Core);
899	return rc;
900	}
901
902	/* Fill in the object attributes and return successfully. */
903	pMemSolaris->Core.u.Lock.R0Process = NIL_RTR0PROCESS;
904	pMemSolaris->pvHandle = NULL;
905	pMemSolaris->fAccess = fPageAccess;
906	*ppMem = &pMemSolaris->Core;
907	return VINF_SUCCESS;
908	}
909
910
911	DECLHIDDEN(int) rtR0MemObjNativeReserveKernel(PPRTR0MEMOBJINTERNAL ppMem, void *pvFixed, size_t cb, size_t uAlignment)
912	{
913	PRTR0MEMOBJSOL pMemSolaris;
914
915	/*
916	* Use xalloc.
917	*/
918	void pv = vmem_xalloc(heap_arena, cb, uAlignment, 0 / phase /, 0 / nocross */,
919	NULL /* minaddr /, NULL / maxaddr */, VM_SLEEP);
920	if (RT_UNLIKELY(!pv))
921	return VERR_NO_MEMORY;
922
923	/* Create the object. */
924	pMemSolaris = (PRTR0MEMOBJSOL)rtR0MemObjNew(sizeof(*pMemSolaris), RTR0MEMOBJTYPE_RES_VIRT, pv, cb);
925	if (!pMemSolaris)
926	{
927	LogRel(("rtR0MemObjNativeReserveKernel failed to alloc memory object.\n"));
928	vmem_xfree(heap_arena, pv, cb);
929	return VERR_NO_MEMORY;
930	}
931
932	pMemSolaris->Core.u.ResVirt.R0Process = NIL_RTR0PROCESS;
933	*ppMem = &pMemSolaris->Core;
934	return VINF_SUCCESS;
935	}
936
937
938	DECLHIDDEN(int) rtR0MemObjNativeReserveUser(PPRTR0MEMOBJINTERNAL ppMem, RTR3PTR R3PtrFixed, size_t cb, size_t uAlignment,
939	RTR0PROCESS R0Process)
940	{
941	return VERR_NOT_SUPPORTED;
942	}
943
944
945	DECLHIDDEN(int) rtR0MemObjNativeMapKernel(PPRTR0MEMOBJINTERNAL ppMem, RTR0MEMOBJ pMemToMap, void *pvFixed, size_t uAlignment,
946	unsigned fProt, size_t offSub, size_t cbSub)
947	{
948	/* Fail if requested to do something we can't. */
949	AssertMsgReturn(pvFixed == (void *)-1, ("%p\n", pvFixed), VERR_NOT_SUPPORTED);
950	if (uAlignment > PAGE_SIZE)
951	return VERR_NOT_SUPPORTED;
952
953	/*
954	* Use xalloc to get address space.
955	*/
956	if (!cbSub)
957	cbSub = pMemToMap->cb;
958	void pv = vmem_xalloc(heap_arena, cbSub, uAlignment, 0 / phase /, 0 / nocross */,
959	NULL /* minaddr /, NULL / maxaddr */, VM_SLEEP);
960	if (RT_UNLIKELY(!pv))
961	return VERR_MAP_FAILED;
962
963	/*
964	* Load the pages from the other object into it.
965	*/
966	uint32_t fAttr = HAT_UNORDERED_OK \| HAT_MERGING_OK \| HAT_LOADCACHING_OK \| HAT_STORECACHING_OK;
967	if (fProt & RTMEM_PROT_READ)
968	fAttr \|= PROT_READ;
969	if (fProt & RTMEM_PROT_EXEC)
970	fAttr \|= PROT_EXEC;
971	if (fProt & RTMEM_PROT_WRITE)
972	fAttr \|= PROT_WRITE;
973	fAttr \|= HAT_NOSYNC;
974
975	int rc = VINF_SUCCESS;
976	size_t off = 0;
977	while (off < cbSub)
978	{
979	RTHCPHYS HCPhys = RTR0MemObjGetPagePhysAddr(pMemToMap, (offSub + offSub) >> PAGE_SHIFT);
980	AssertBreakStmt(HCPhys != NIL_RTHCPHYS, rc = VERR_INTERNAL_ERROR_2);
981	pfn_t pfn = HCPhys >> PAGE_SHIFT;
982	AssertBreakStmt(((RTHCPHYS)pfn << PAGE_SHIFT) == HCPhys, rc = VERR_INTERNAL_ERROR_3);
983
984	hat_devload(kas.a_hat, (uint8_t *)pv + off, PAGE_SIZE, pfn, fAttr, HAT_LOAD_LOCK);
985
986	/* Advance. */
987	off += PAGE_SIZE;
988	}
989	if (RT_SUCCESS(rc))
990	{
991	/*
992	* Create a memory object for the mapping.
993	*/
994	PRTR0MEMOBJSOL pMemSolaris = (PRTR0MEMOBJSOL)rtR0MemObjNew(sizeof(*pMemSolaris), RTR0MEMOBJTYPE_MAPPING, pv, cbSub);
995	if (pMemSolaris)
996	{
997	pMemSolaris->Core.u.Mapping.R0Process = NIL_RTR0PROCESS;
998	*ppMem = &pMemSolaris->Core;
999	return VINF_SUCCESS;
1000	}
1001
1002	LogRel(("rtR0MemObjNativeMapKernel failed to alloc memory object.\n"));
1003	rc = VERR_NO_MEMORY;
1004	}
1005
1006	if (off)
1007	hat_unload(kas.a_hat, pv, off, HAT_UNLOAD \| HAT_UNLOAD_UNLOCK);
1008	vmem_xfree(heap_arena, pv, cbSub);
1009	return rc;
1010	}
1011
1012
1013	DECLHIDDEN(int) rtR0MemObjNativeMapUser(PPRTR0MEMOBJINTERNAL ppMem, PRTR0MEMOBJINTERNAL pMemToMap, RTR3PTR R3PtrFixed,
1014	size_t uAlignment, unsigned fProt, RTR0PROCESS R0Process, size_t offSub, size_t cbSub)
1015	{
1016	/*
1017	* Fend off things we cannot do.
1018	*/
1019	AssertMsgReturn(R3PtrFixed == (RTR3PTR)-1, ("%p\n", R3PtrFixed), VERR_NOT_SUPPORTED);
1020	AssertMsgReturn(R0Process == RTR0ProcHandleSelf(), ("%p != %p\n", R0Process, RTR0ProcHandleSelf()), VERR_NOT_SUPPORTED);
1021	if (uAlignment != PAGE_SIZE)
1022	return VERR_NOT_SUPPORTED;
1023	AssertMsgReturn(!offSub && !cbSub, ("%#zx %#zx\n", offSub, cbSub), VERR_NOT_SUPPORTED); /** @todo implement sub maps */
1024
1025	/*
1026	* Get parameters from the source object.
1027	*/
1028	PRTR0MEMOBJSOL pMemToMapSolaris = (PRTR0MEMOBJSOL)pMemToMap;
1029	void *pv = pMemToMapSolaris->Core.pv;
1030	size_t cb = pMemToMapSolaris->Core.cb;
1031	size_t cPages = (cb + PAGE_SIZE - 1) >> PAGE_SHIFT;
1032
1033	/*
1034	* Create the mapping object
1035	*/
1036	PRTR0MEMOBJSOL pMemSolaris;
1037	pMemSolaris = (PRTR0MEMOBJSOL)rtR0MemObjNew(sizeof(*pMemSolaris), RTR0MEMOBJTYPE_MAPPING, pv, cb);
1038	if (RT_UNLIKELY(!pMemSolaris))
1039	return VERR_NO_MEMORY;
1040
1041	int rc = VINF_SUCCESS;
1042	uint64_t paPhysAddrs = kmem_zalloc(sizeof(uint64_t) cPages, KM_SLEEP);
1043	if (RT_LIKELY(paPhysAddrs))
1044	{
1045	/*
1046	* Prepare the pages for mapping according to type.
1047	*/
1048	if ( pMemToMapSolaris->Core.enmType == RTR0MEMOBJTYPE_PHYS_NC
1049	&& pMemToMapSolaris->fIndivPages)
1050	{
1051	page_t **ppPages = pMemToMapSolaris->pvHandle;
1052	AssertPtr(ppPages);
1053	for (size_t iPage = 0; iPage < cPages; iPage++)
1054	paPhysAddrs[iPage] = rtR0MemObjSolPagePhys(ppPages[iPage]);
1055	}
1056	else if ( pMemToMapSolaris->Core.enmType == RTR0MEMOBJTYPE_PHYS
1057	&& pMemToMapSolaris->fLargePage)
1058	{
1059	RTHCPHYS Phys = pMemToMapSolaris->Core.u.Phys.PhysBase;
1060	for (size_t iPage = 0; iPage < cPages; iPage++, Phys += PAGE_SIZE)
1061	paPhysAddrs[iPage] = Phys;
1062	}
1063	else
1064	{
1065	/*
1066	* Have kernel mapping, just translate virtual to physical.
1067	*/
1068	AssertPtr(pv);
1069	rc = VINF_SUCCESS;
1070	for (size_t iPage = 0; iPage < cPages; iPage++)
1071	{
1072	paPhysAddrs[iPage] = rtR0MemObjSolVirtToPhys(pv);
1073	if (RT_UNLIKELY(paPhysAddrs[iPage] == -(uint64_t)1))
1074	{
1075	LogRel(("rtR0MemObjNativeMapUser: no page to map.\n"));
1076	rc = VERR_MAP_FAILED;
1077	break;
1078	}
1079	pv = (void *)((uintptr_t)pv + PAGE_SIZE);
1080	}
1081	}
1082	if (RT_SUCCESS(rc))
1083	{
1084	unsigned fPageAccess = PROT_READ;
1085	if (fProt & RTMEM_PROT_WRITE)
1086	fPageAccess \|= PROT_WRITE;
1087	if (fProt & RTMEM_PROT_EXEC)
1088	fPageAccess \|= PROT_EXEC;
1089
1090	/*
1091	* Perform the actual mapping.
1092	*/
1093	caddr_t UserAddr = NULL;
1094	rc = rtR0MemObjSolUserMap(&UserAddr, fPageAccess, paPhysAddrs, cb, PAGE_SIZE);
1095	if (RT_SUCCESS(rc))
1096	{
1097	pMemSolaris->Core.u.Mapping.R0Process = R0Process;
1098	pMemSolaris->Core.pv = UserAddr;
1099
1100	*ppMem = &pMemSolaris->Core;
1101	kmem_free(paPhysAddrs, sizeof(uint64_t) * cPages);
1102	return VINF_SUCCESS;
1103	}
1104
1105	LogRel(("rtR0MemObjNativeMapUser: rtR0MemObjSolUserMap failed rc=%d.\n", rc));
1106	}
1107
1108	rc = VERR_MAP_FAILED;
1109	kmem_free(paPhysAddrs, sizeof(uint64_t) * cPages);
1110	}
1111	else
1112	rc = VERR_NO_MEMORY;
1113	rtR0MemObjDelete(&pMemSolaris->Core);
1114	return rc;
1115	}
1116
1117
1118	DECLHIDDEN(int) rtR0MemObjNativeProtect(PRTR0MEMOBJINTERNAL pMem, size_t offSub, size_t cbSub, uint32_t fProt)
1119	{
1120	NOREF(pMem);
1121	NOREF(offSub);
1122	NOREF(cbSub);
1123	NOREF(fProt);
1124	return VERR_NOT_SUPPORTED;
1125	}
1126
1127
1128	DECLHIDDEN(RTHCPHYS) rtR0MemObjNativeGetPagePhysAddr(PRTR0MEMOBJINTERNAL pMem, size_t iPage)
1129	{
1130	PRTR0MEMOBJSOL pMemSolaris = (PRTR0MEMOBJSOL)pMem;
1131
1132	switch (pMemSolaris->Core.enmType)
1133	{
1134	case RTR0MEMOBJTYPE_PHYS_NC:
1135	if ( pMemSolaris->Core.u.Phys.fAllocated
1136	\|\| !pMemSolaris->fIndivPages)
1137	{
1138	uint8_t pb = (uint8_t )pMemSolaris->Core.pv + ((size_t)iPage << PAGE_SHIFT);
1139	return rtR0MemObjSolVirtToPhys(pb);
1140	}
1141	page_t **ppPages = pMemSolaris->pvHandle;
1142	return rtR0MemObjSolPagePhys(ppPages[iPage]);
1143
1144	case RTR0MEMOBJTYPE_PAGE:
1145	case RTR0MEMOBJTYPE_LOW:
1146	case RTR0MEMOBJTYPE_LOCK:
1147	{
1148	uint8_t pb = (uint8_t )pMemSolaris->Core.pv + ((size_t)iPage << PAGE_SHIFT);
1149	return rtR0MemObjSolVirtToPhys(pb);
1150	}
1151
1152	/*
1153	* Although mapping can be handled by rtR0MemObjSolVirtToPhys(offset) like the above case,
1154	* request it from the parent so that we have a clear distinction between CONT/PHYS_NC.
1155	*/
1156	case RTR0MEMOBJTYPE_MAPPING:
1157	return rtR0MemObjNativeGetPagePhysAddr(pMemSolaris->Core.uRel.Child.pParent, iPage);
1158
1159	case RTR0MEMOBJTYPE_CONT:
1160	case RTR0MEMOBJTYPE_PHYS:
1161	AssertFailed(); /* handled by the caller */
1162	case RTR0MEMOBJTYPE_RES_VIRT:
1163	default:
1164	return NIL_RTHCPHYS;
1165	}
1166	}
1167

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source: vbox/trunk/src/VBox/Runtime/r0drv/solaris/memobj-r0drv-solaris.c@ 78253

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