/* $Id: initterm-r0drv-solaris.c 93115 2022-01-01 11:31:46Z vboxsync $ */ /** @file * IPRT - Initialization & Termination, Ring-0 Driver, Solaris. */ /* * Copyright (C) 2006-2022 Oracle Corporation * * This file is part of VirtualBox Open Source Edition (OSE), as * available from http://www.virtualbox.org. This file is free software; * you can redistribute it and/or modify it under the terms of the GNU * General Public License (GPL) as published by the Free Software * Foundation, in version 2 as it comes in the "COPYING" file of the * VirtualBox OSE distribution. VirtualBox OSE is distributed in the * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. * * The contents of this file may alternatively be used under the terms * of the Common Development and Distribution License Version 1.0 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the * VirtualBox OSE distribution, in which case the provisions of the * CDDL are applicable instead of those of the GPL. * * You may elect to license modified versions of this file under the * terms and conditions of either the GPL or the CDDL or both. */ /********************************************************************************************************************************* * Header Files * *********************************************************************************************************************************/ #include "the-solaris-kernel.h" #include "internal/iprt.h" #include #include #if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86) # include #endif #include "internal/initterm.h" /********************************************************************************************************************************* * Global Variables * *********************************************************************************************************************************/ /** Kernel debug info handle. */ RTDBGKRNLINFO g_hKrnlDbgInfo; /** Indicates that the spl routines (and therefore a bunch of other ones too) * will set EFLAGS::IF and break code that disables interrupts. */ bool g_frtSolSplSetsEIF = false; /** timeout_generic address. */ PFNSOL_timeout_generic g_pfnrtR0Sol_timeout_generic = NULL; /** untimeout_generic address. */ PFNSOL_untimeout_generic g_pfnrtR0Sol_untimeout_generic = NULL; /** cyclic_reprogram address. */ PFNSOL_cyclic_reprogram g_pfnrtR0Sol_cyclic_reprogram = NULL; /** page_noreloc_supported address. */ PFNSOL_page_noreloc_supported g_pfnrtR0Sol_page_noreloc_supported = NULL; /** Whether to use the kernel page freelist. */ bool g_frtSolUseKflt = false; /** Whether we've completed R0 initialization. */ bool g_frtSolInitDone = false; /** Whether to use old-style xc_call interface. */ bool g_frtSolOldIPI = false; /** Whether to use old-style xc_call interface using one ulong_t as the CPU set * representation. */ bool g_frtSolOldIPIUlong = false; /** The xc_call callout table structure. */ RTR0FNSOLXCCALL g_rtSolXcCall; /** Whether to use the old-style installctx()/removectx() routines. */ bool g_frtSolOldThreadCtx = false; /** The thread-context hooks callout table structure. */ RTR0FNSOLTHREADCTX g_rtSolThreadCtx; /** Thread preemption offset in the thread structure. */ size_t g_offrtSolThreadPreempt; /** Thread ID offset in the thread structure. */ size_t g_offrtSolThreadId; /** The interrupt (pinned) thread pointer offset in the thread structure. */ size_t g_offrtSolThreadIntrThread; /** The dispatcher lock pointer offset in the thread structure. */ size_t g_offrtSolThreadLock; /** The process pointer offset in the thread structure. */ size_t g_offrtSolThreadProc; /** Host scheduler preemption offset. */ size_t g_offrtSolCpuPreempt; /** Host scheduler force preemption offset. */ size_t g_offrtSolCpuForceKernelPreempt; /** Whether to use the old-style map_addr() routine. */ bool g_frtSolOldMapAddr = false; /** The map_addr() hooks callout table structure. */ RTR0FNSOLMAPADDR g_rtSolMapAddr; /* Resolve using dl_lookup (remove if no longer relevant for supported S10 versions) */ extern void contig_free(void *addr, size_t size); #pragma weak contig_free /** contig_free address. */ PFNSOL_contig_free g_pfnrtR0Sol_contig_free = contig_free; DECLHIDDEN(int) rtR0InitNative(void) { /* * IPRT has not yet been initialized at this point, so use Solaris' native cmn_err() for logging. */ int rc = RTR0DbgKrnlInfoOpen(&g_hKrnlDbgInfo, 0 /* fFlags */); if (RT_SUCCESS(rc)) { #if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86) /* * Detect whether spl*() is preserving the interrupt flag or not. * This is a problem on S10. */ RTCCUINTREG uOldFlags = ASMIntDisableFlags(); int iOld = splr(DISP_LEVEL); if (ASMIntAreEnabled()) g_frtSolSplSetsEIF = true; splx(iOld); if (ASMIntAreEnabled()) g_frtSolSplSetsEIF = true; ASMSetFlags(uOldFlags); #else /* PORTME: See if the amd64/x86 problem applies to this architecture. */ #endif /* * Mandatory: Preemption offsets. */ rc = RTR0DbgKrnlInfoQueryMember(g_hKrnlDbgInfo, NULL, "cpu_t", "cpu_runrun", &g_offrtSolCpuPreempt); if (RT_FAILURE(rc)) { cmn_err(CE_NOTE, "Failed to find cpu_t::cpu_runrun!\n"); goto errorbail; } rc = RTR0DbgKrnlInfoQueryMember(g_hKrnlDbgInfo, NULL, "cpu_t", "cpu_kprunrun", &g_offrtSolCpuForceKernelPreempt); if (RT_FAILURE(rc)) { cmn_err(CE_NOTE, "Failed to find cpu_t::cpu_kprunrun!\n"); goto errorbail; } rc = RTR0DbgKrnlInfoQueryMember(g_hKrnlDbgInfo, NULL, "kthread_t", "t_preempt", &g_offrtSolThreadPreempt); if (RT_FAILURE(rc)) { cmn_err(CE_NOTE, "Failed to find kthread_t::t_preempt!\n"); goto errorbail; } rc = RTR0DbgKrnlInfoQueryMember(g_hKrnlDbgInfo, NULL, "kthread_t", "t_did", &g_offrtSolThreadId); if (RT_FAILURE(rc)) { cmn_err(CE_NOTE, "Failed to find kthread_t::t_did!\n"); goto errorbail; } rc = RTR0DbgKrnlInfoQueryMember(g_hKrnlDbgInfo, NULL, "kthread_t", "t_intr", &g_offrtSolThreadIntrThread); if (RT_FAILURE(rc)) { cmn_err(CE_NOTE, "Failed to find kthread_t::t_intr!\n"); goto errorbail; } rc = RTR0DbgKrnlInfoQueryMember(g_hKrnlDbgInfo, NULL, "kthread_t", "t_lockp", &g_offrtSolThreadLock); if (RT_FAILURE(rc)) { cmn_err(CE_NOTE, "Failed to find kthread_t::t_lockp!\n"); goto errorbail; } rc = RTR0DbgKrnlInfoQueryMember(g_hKrnlDbgInfo, NULL, "kthread_t", "t_procp", &g_offrtSolThreadProc); if (RT_FAILURE(rc)) { cmn_err(CE_NOTE, "Failed to find kthread_t::t_procp!\n"); goto errorbail; } cmn_err(CE_CONT, "!cpu_t::cpu_runrun @ 0x%lx (%ld)\n", g_offrtSolCpuPreempt, g_offrtSolCpuPreempt); cmn_err(CE_CONT, "!cpu_t::cpu_kprunrun @ 0x%lx (%ld)\n", g_offrtSolCpuForceKernelPreempt, g_offrtSolCpuForceKernelPreempt); cmn_err(CE_CONT, "!kthread_t::t_preempt @ 0x%lx (%ld)\n", g_offrtSolThreadPreempt, g_offrtSolThreadPreempt); cmn_err(CE_CONT, "!kthread_t::t_did @ 0x%lx (%ld)\n", g_offrtSolThreadId, g_offrtSolThreadId); cmn_err(CE_CONT, "!kthread_t::t_intr @ 0x%lx (%ld)\n", g_offrtSolThreadIntrThread, g_offrtSolThreadIntrThread); cmn_err(CE_CONT, "!kthread_t::t_lockp @ 0x%lx (%ld)\n", g_offrtSolThreadLock, g_offrtSolThreadLock); cmn_err(CE_CONT, "!kthread_t::t_procp @ 0x%lx (%ld)\n", g_offrtSolThreadProc, g_offrtSolThreadProc); /* * Mandatory: CPU cross call infrastructure. Refer the-solaris-kernel.h for details. */ rc = RTR0DbgKrnlInfoQuerySymbol(g_hKrnlDbgInfo, NULL /* pszModule */, "xc_init_cpu", NULL /* ppvSymbol */); if (RT_SUCCESS(rc)) { if (ncpus > IPRT_SOL_NCPUS) { cmn_err(CE_NOTE, "rtR0InitNative: CPU count mismatch! ncpus=%d IPRT_SOL_NCPUS=%d\n", ncpus, IPRT_SOL_NCPUS); rc = VERR_NOT_SUPPORTED; goto errorbail; } g_rtSolXcCall.u.pfnSol_xc_call = (void *)xc_call; } else { g_frtSolOldIPI = true; g_rtSolXcCall.u.pfnSol_xc_call_old = (void *)xc_call; if (max_cpuid + 1 == sizeof(ulong_t) * 8) { g_frtSolOldIPIUlong = true; g_rtSolXcCall.u.pfnSol_xc_call_old_ulong = (void *)xc_call; } else if (max_cpuid + 1 != IPRT_SOL_NCPUS) { cmn_err(CE_NOTE, "rtR0InitNative: cpuset_t size mismatch! max_cpuid=%d IPRT_SOL_NCPUS=%d\n", max_cpuid, IPRT_SOL_NCPUS); rc = VERR_NOT_SUPPORTED; goto errorbail; } } /* * Mandatory: Thread-context hooks. */ rc = RTR0DbgKrnlInfoQuerySymbol(g_hKrnlDbgInfo, NULL /* pszModule */, "exitctx", NULL /* ppvSymbol */); if (RT_SUCCESS(rc)) { g_rtSolThreadCtx.Install.pfnSol_installctx = (void *)installctx; g_rtSolThreadCtx.Remove.pfnSol_removectx = (void *)removectx; } else { g_frtSolOldThreadCtx = true; g_rtSolThreadCtx.Install.pfnSol_installctx_old = (void *)installctx; g_rtSolThreadCtx.Remove.pfnSol_removectx_old = (void *)removectx; } /* * Mandatory: map_addr() hooks. */ rc = RTR0DbgKrnlInfoQuerySymbol(g_hKrnlDbgInfo, NULL /* pszModule */, "plat_map_align_amount", NULL /* ppvSymbol */); if (RT_SUCCESS(rc)) { g_rtSolMapAddr.u.pfnSol_map_addr = (void *)map_addr; } else { g_frtSolOldMapAddr = true; g_rtSolMapAddr.u.pfnSol_map_addr_old = (void *)map_addr; } /* * Optional: Timeout hooks. */ RTR0DbgKrnlInfoQuerySymbol(g_hKrnlDbgInfo, NULL /* pszModule */, "timeout_generic", (void **)&g_pfnrtR0Sol_timeout_generic); RTR0DbgKrnlInfoQuerySymbol(g_hKrnlDbgInfo, NULL /* pszModule */, "untimeout_generic", (void **)&g_pfnrtR0Sol_untimeout_generic); if ((g_pfnrtR0Sol_timeout_generic == NULL) != (g_pfnrtR0Sol_untimeout_generic == NULL)) { static const char *s_apszFn[2] = { "timeout_generic", "untimeout_generic" }; bool iMissingFn = g_pfnrtR0Sol_timeout_generic == NULL; cmn_err(CE_NOTE, "rtR0InitNative: Weird! Found %s but not %s!\n", s_apszFn[!iMissingFn], s_apszFn[iMissingFn]); g_pfnrtR0Sol_timeout_generic = NULL; g_pfnrtR0Sol_untimeout_generic = NULL; } RTR0DbgKrnlInfoQuerySymbol(g_hKrnlDbgInfo, NULL /* pszModule */, "cyclic_reprogram", (void **)&g_pfnrtR0Sol_cyclic_reprogram); /* * Optional: Querying page no-relocation support. */ RTR0DbgKrnlInfoQuerySymbol(g_hKrnlDbgInfo, NULL /*pszModule */, "page_noreloc_supported", (void **)&g_pfnrtR0Sol_page_noreloc_supported); /* * Weak binding failures: contig_free */ if (g_pfnrtR0Sol_contig_free == NULL) { rc = RTR0DbgKrnlInfoQuerySymbol(g_hKrnlDbgInfo, NULL /* pszModule */, "contig_free", (void **)&g_pfnrtR0Sol_contig_free); if (RT_FAILURE(rc)) { cmn_err(CE_NOTE, "rtR0InitNative: failed to find contig_free!\n"); goto errorbail; } } g_frtSolInitDone = true; return VINF_SUCCESS; } else { cmn_err(CE_NOTE, "RTR0DbgKrnlInfoOpen failed. rc=%d\n", rc); return rc; } errorbail: RTR0DbgKrnlInfoRelease(g_hKrnlDbgInfo); return rc; } DECLHIDDEN(void) rtR0TermNative(void) { RTR0DbgKrnlInfoRelease(g_hKrnlDbgInfo); g_frtSolInitDone = false; }