*
* @APPLE_LICENSE_HEADER_START@
*
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
*
* @APPLE_LICENSE_HEADER_END@
*/
**
** C routines that we are adding to the MacOS X kernel.
**
-** Weird Apple PSL stuff goes here...
-**
-** Until then, Copyright 2000, Connectix
-----------------------------------------------------------------------*/
#include <mach/mach_types.h>
#include <kern/host.h>
#include <kern/task.h>
#include <kern/thread.h>
+#include <kern/thread_act.h>
#include <ppc/exception.h>
#include <ppc/mappings.h>
#include <ppc/thread_act.h>
-#include <ppc/pmap_internals.h>
#include <vm/vm_kern.h>
#include <ppc/vmachmon.h>
vmmCntrlTable *CTable;
vmmCntrlEntry *CEntry;
+ index = index & vmmTInum; /* Clean up the index */
+
if (act->mact.vmmControl == 0) return NULL; /* No control table means no vmm */
- if ((index - 1) >= kVmmMaxContextsPerThread) return NULL; /* Index not in range */
+ if ((index - 1) >= kVmmMaxContexts) return NULL; /* Index not in range */
CTable = act->mact.vmmControl; /* Make the address a bit more convienient */
CEntry = &CTable->vmmc[index - 1]; /* Point to the entry */
return CEntry;
}
+/*-----------------------------------------------------------------------
+** vmm_get_adsp
+**
+** This function verifies and returns the pmap for an address space.
+** If there is none and the request is valid, a pmap will be created.
+**
+** Inputs:
+** act - pointer to current thread activation
+** index - index into vmm control table (this is a "one based" value)
+**
+** Outputs:
+** address of a pmap or 0 if not found or could no be created
+** Note that if there is no pmap for the address space it will be created.
+-----------------------------------------------------------------------*/
+
+pmap_t vmm_get_adsp(thread_act_t act, vmm_thread_index_t index)
+{
+ pmap_t pmap;
+
+ if (act->mact.vmmControl == 0) return NULL; /* No control table means no vmm */
+ if ((index - 1) >= kVmmMaxContexts) return NULL; /* Index not in range */
+
+ pmap = act->mact.vmmControl->vmmAdsp[index - 1]; /* Get the pmap */
+ if(pmap) return pmap; /* We've got it... */
+
+ pmap = pmap_create(0); /* Make a fresh one */
+ act->mact.vmmControl->vmmAdsp[index - 1] = pmap; /* Remember it */
+/*
+ * Note that if the create fails, we will return a null.
+ */
+ return pmap; /* Return it... */
+}
+
/*************************************************************************************
int vmm_get_features(struct savearea *save)
{
save->save_r3 = kVmmCurrentFeatures; /* Return the features */
+ if(per_proc_info->pf.Available & pf64Bit) {
+ save->save_r3 &= ~kVmmFeature_LittleEndian; /* No little endian here */
+ save->save_r3 |= kVmmFeature_SixtyFourBit; /* Set that we can do 64-bit */
+ }
return 1;
}
+/*-----------------------------------------------------------------------
+** vmm_max_addr
+**
+** This function returns the maximum addressable virtual address sported
+**
+** Outputs:
+** Returns max address
+-----------------------------------------------------------------------*/
+
+addr64_t vmm_max_addr(thread_act_t act)
+{
+ return vm_max_address; /* Return the maximum address */
+}
+
+/*-----------------------------------------------------------------------
+** vmm_get_XA
+**
+** This function retrieves the eXtended Architecture flags for the specifed VM.
+**
+** We need to return the result in the return code rather than in the return parameters
+** because we need an architecture independent format so the results are actually
+** usable by the host. For example, the return parameters for 64-bit are 8 bytes wide vs.
+** 4 for 32-bit.
+**
+**
+** Inputs:
+** act - pointer to current thread activation structure
+** index - index returned by vmm_init_context
+**
+** Outputs:
+** Return code is set to the XA flags. If the index is invalid or the
+** context has not been created, we return 0.
+-----------------------------------------------------------------------*/
+
+unsigned int vmm_get_XA(
+ thread_act_t act,
+ vmm_thread_index_t index)
+{
+ vmmCntrlEntry *CEntry;
+
+ CEntry = vmm_get_entry(act, index); /* Convert index to entry */
+ if (CEntry == NULL) return 0; /* Either this isn't a vmm or the index is bogus */
+
+ return CEntry->vmmXAFlgs; /* Return the flags */
+}
+
/*-----------------------------------------------------------------------
** vmm_init_context
**
vmmCntrlTable *CTable;
vm_offset_t conkern;
vmm_state_page_t * vks;
- vm_offset_t conphys;
+ ppnum_t conphys;
kern_return_t ret;
pmap_t new_pmap;
int cvi, i;
return 1;
}
- /* If the client is requesting a newer major version than */
- /* we currently support, we'll have to fail. In the future, */
- /* we can add new major versions and support the older ones. */
+ /* Make sure that the version requested is supported */
version = save->save_r3; /* Pick up passed in version */
- if ((version >> 16) > (kVmmCurrentVersion >> 16)) {
+ if (((version >> 16) < kVmmMinMajorVersion) || ((version >> 16) > (kVmmCurrentVersion >> 16))) {
+ save->save_r3 = KERN_FAILURE; /* Return failure */
+ return 1;
}
-
+
+ if((version & 0xFFFF) > kVmmCurMinorVersion) { /* Check for valid minor */
+ save->save_r3 = KERN_FAILURE; /* Return failure */
+ return 1;
+ }
+
act = current_act(); /* Pick up our activation */
ml_set_interrupts_enabled(TRUE); /* This can take a bit of time so pass interruptions */
act->mact.vmmControl = CTable; /* Initialize the table anchor */
}
- for(cvi = 0; cvi < kVmmMaxContextsPerThread; cvi++) { /* Search to find a free slot */
+ for(cvi = 0; cvi < kVmmMaxContexts; cvi++) { /* Search to find a free slot */
if(!(CTable->vmmc[cvi].vmmFlags & vmmInUse)) break; /* Bail if we find an unused slot */
}
- if(cvi >= kVmmMaxContextsPerThread) { /* Did we find one? */
+ if(cvi >= kVmmMaxContexts) { /* Did we find one? */
ml_set_interrupts_enabled(FALSE); /* Set back interruptions */
save->save_r3 = KERN_RESOURCE_SHORTAGE; /* No empty slots... */
return 1;
goto return_in_shame;
/* Map the vmm state into the kernel's address space. */
- conphys = pmap_extract(act->map->pmap, (vm_offset_t)vmm_user_state);
+ conphys = pmap_find_phys(act->map->pmap, (addr64_t)vmm_user_state);
/* Find a virtual address to use. */
ret = kmem_alloc_pageable(kernel_map, &conkern, PAGE_SIZE);
}
/* Map it into the kernel's address space. */
- pmap_enter(kernel_pmap, conkern, conphys, VM_PROT_READ | VM_PROT_WRITE, TRUE);
+
+ pmap_enter(kernel_pmap, conkern, conphys,
+ VM_PROT_READ | VM_PROT_WRITE,
+ VM_WIMG_USE_DEFAULT, TRUE);
/* Clear the vmm state structure. */
vks = (vmm_state_page_t *)conkern;
bzero((char *)vks, PAGE_SIZE);
- /* Allocate a new pmap for the new vmm context. */
- new_pmap = pmap_create(0);
- if (new_pmap == PMAP_NULL) {
- (void) vm_map_unwire(act->map, /* Couldn't get a pmap, unwire the user page */
- (vm_offset_t)vmm_user_state,
- (vm_offset_t)vmm_user_state + PAGE_SIZE,
- TRUE);
-
- kmem_free(kernel_map, conkern, PAGE_SIZE); /* Release the kernel address */
- goto return_in_shame;
- }
/* We're home free now. Simply fill in the necessary info and return. */
vks->thread_index = cvi + 1; /* Tell the user the index for this virtual machine */
CTable->vmmc[cvi].vmmFlags = vmmInUse; /* Mark the slot in use and make sure the rest are clear */
- CTable->vmmc[cvi].vmmPmap = new_pmap; /* Remember the pmap for this guy */
CTable->vmmc[cvi].vmmContextKern = vks; /* Remember the kernel address of comm area */
+ CTable->vmmc[cvi].vmmContextPhys = (vmm_state_page_t *)conphys; /* Remember the state page physical addr */
CTable->vmmc[cvi].vmmContextUser = vmm_user_state; /* Remember user address of comm area */
- CTable->vmmc[cvi].vmmFPU_pcb = 0; /* Clear saved floating point context */
- CTable->vmmc[cvi].vmmFPU_cpu = -1; /* Invalidate CPU saved fp context is valid on */
- CTable->vmmc[cvi].vmmVMX_pcb = 0; /* Clear saved vector context */
- CTable->vmmc[cvi].vmmVMX_cpu = -1; /* Invalidate CPU saved vector context is valid on */
-
- hw_atomic_add(&saveanchor.saveneed, 2); /* Account for the number of extra saveareas we think we might "need" */
+
+ CTable->vmmc[cvi].vmmFacCtx.FPUsave = 0; /* Clear facility context control */
+ CTable->vmmc[cvi].vmmFacCtx.FPUlevel = 0; /* Clear facility context control */
+ CTable->vmmc[cvi].vmmFacCtx.FPUcpu = 0; /* Clear facility context control */
+ CTable->vmmc[cvi].vmmFacCtx.VMXsave = 0; /* Clear facility context control */
+ CTable->vmmc[cvi].vmmFacCtx.VMXlevel = 0; /* Clear facility context control */
+ CTable->vmmc[cvi].vmmFacCtx.VMXcpu = 0; /* Clear facility context control */
+ CTable->vmmc[cvi].vmmFacCtx.facAct = act; /* Point back to the activation */
+
+ hw_atomic_add((int *)&saveanchor.savetarget, 2); /* Account for the number of extra saveareas we think we might "need" */
+
+ if (!(act->map->pmap->pmapFlags & pmapVMhost)) {
+ simple_lock(&(act->map->pmap->lock));
+ act->map->pmap->pmapFlags |= pmapVMhost;
+ simple_unlock(&(act->map->pmap->lock));
+ }
ml_set_interrupts_enabled(FALSE); /* Set back interruptions */
save->save_r3 = KERN_SUCCESS; /* Hip, hip, horay... */
**
** Outputs:
** kernel return code indicating success or failure
+**
+** Strangeness note:
+** This call will also trash the address space with the same ID. While this
+** is really not too cool, we have to do it because we need to make
+** sure that old VMM users (not that we really have any) who depend upon
+** the address space going away with the context still work the same.
-----------------------------------------------------------------------*/
kern_return_t vmm_tear_down_context(
ml_set_interrupts_enabled(TRUE); /* This can take a bit of time so pass interruptions */
- hw_atomic_sub(&saveanchor.saveneed, 2); /* We don't need these extra saveareas anymore */
+ hw_atomic_sub((int *)&saveanchor.savetarget, 2); /* We don't need these extra saveareas anymore */
- if(CEntry->vmmFPU_pcb) { /* Is there any floating point context? */
- sv = (savearea *)CEntry->vmmFPU_pcb; /* Make useable */
- sv->save_flags &= ~SAVfpuvalid; /* Clear in use bit */
- if(!(sv->save_flags & SAVinuse)) { /* Anyone left with this one? */
- save_release(sv); /* Nope, release it */
- }
+ if(CEntry->vmmFacCtx.FPUsave) { /* Is there any floating point context? */
+ toss_live_fpu(&CEntry->vmmFacCtx); /* Get rid of any live context here */
+ save_release((savearea *)CEntry->vmmFacCtx.FPUsave); /* Release it */
}
- if(CEntry->vmmVMX_pcb) { /* Is there any vector context? */
- sv = (savearea *)CEntry->vmmVMX_pcb; /* Make useable */
- sv->save_flags &= ~SAVvmxvalid; /* Clear in use bit */
- if(!(sv->save_flags & SAVinuse)) { /* Anyone left with this one? */
- save_release(sv); /* Nope, release it */
- }
+ if(CEntry->vmmFacCtx.VMXsave) { /* Is there any vector context? */
+ toss_live_vec(&CEntry->vmmFacCtx); /* Get rid of any live context here */
+ save_release((savearea *)CEntry->vmmFacCtx.VMXsave); /* Release it */
}
- mapping_remove(CEntry->vmmPmap, 0xFFFFF000); /* Remove final page explicitly because we might have mapped it */
- pmap_remove(CEntry->vmmPmap, 0, 0xFFFFF000); /* Remove all entries from this map */
- pmap_destroy(CEntry->vmmPmap); /* Toss the pmap for this context */
- CEntry->vmmPmap = NULL; /* Clean it up */
+ CEntry->vmmPmap = 0; /* Remove this trace */
+ if(act->mact.vmmControl->vmmAdsp[index - 1]) { /* Check if there is an address space assigned here */
+ mapping_remove(act->mact.vmmControl->vmmAdsp[index - 1], 0xFFFFFFFFFFFFF000LL); /* Remove final page explicitly because we might have mapped it */
+ pmap_remove(act->mact.vmmControl->vmmAdsp[index - 1], 0, 0xFFFFFFFFFFFFF000LL); /* Remove all entries from this map */
+ pmap_destroy(act->mact.vmmControl->vmmAdsp[index - 1]); /* Toss the pmap for this context */
+ act->mact.vmmControl->vmmAdsp[index - 1] = NULL; /* Clean it up */
+ }
(void) vm_map_unwire( /* Unwire the user comm page */
act->map,
kmem_free(kernel_map, (vm_offset_t)CEntry->vmmContextKern, PAGE_SIZE); /* Remove kernel's view of the comm page */
+ CTable = act->mact.vmmControl; /* Get the control table address */
+ CTable->vmmGFlags = CTable->vmmGFlags & ~vmmLastAdSp; /* Make sure we don't try to automap into this */
+
CEntry->vmmFlags = 0; /* Clear out all of the flags for this entry including in use */
- CEntry->vmmPmap = 0; /* Clear pmap pointer */
CEntry->vmmContextKern = 0; /* Clear the kernel address of comm area */
CEntry->vmmContextUser = 0; /* Clear the user address of comm area */
- CEntry->vmmFPU_pcb = 0; /* Clear saved floating point context */
- CEntry->vmmFPU_cpu = -1; /* Invalidate CPU saved fp context is valid on */
- CEntry->vmmVMX_pcb = 0; /* Clear saved vector context */
- CEntry->vmmVMX_cpu = -1; /* Invalidate CPU saved vector context is valid on */
- CTable = act->mact.vmmControl; /* Get the control table address */
- for(cvi = 0; cvi < kVmmMaxContextsPerThread; cvi++) { /* Search to find a free slot */
+ CEntry->vmmFacCtx.FPUsave = 0; /* Clear facility context control */
+ CEntry->vmmFacCtx.FPUlevel = 0; /* Clear facility context control */
+ CEntry->vmmFacCtx.FPUcpu = 0; /* Clear facility context control */
+ CEntry->vmmFacCtx.VMXsave = 0; /* Clear facility context control */
+ CEntry->vmmFacCtx.VMXlevel = 0; /* Clear facility context control */
+ CEntry->vmmFacCtx.VMXcpu = 0; /* Clear facility context control */
+ CEntry->vmmFacCtx.facAct = 0; /* Clear facility context control */
+
+ for(cvi = 0; cvi < kVmmMaxContexts; cvi++) { /* Search to find a free slot */
if(CTable->vmmc[cvi].vmmFlags & vmmInUse) { /* Return if there are still some in use */
ml_set_interrupts_enabled(FALSE); /* No more interruptions */
return KERN_SUCCESS; /* Leave... */
}
}
+/*
+ * When we have tossed the last context, toss any address spaces left over before releasing
+ * the VMM control block
+ */
+
+ for(cvi = 1; cvi <= kVmmMaxContexts; cvi++) { /* Look at all slots */
+ if(!act->mact.vmmControl->vmmAdsp[index - 1]) continue; /* Nothing to remove here */
+ mapping_remove(act->mact.vmmControl->vmmAdsp[index - 1], 0xFFFFFFFFFFFFF000LL); /* Remove final page explicitly because we might have mapped it */
+ pmap_remove(act->mact.vmmControl->vmmAdsp[index - 1], 0, 0xFFFFFFFFFFFFF000LL); /* Remove all entries from this map */
+ pmap_destroy(act->mact.vmmControl->vmmAdsp[index - 1]); /* Toss the pmap for this context */
+ act->mact.vmmControl->vmmAdsp[index - 1] = 0; /* Clear just in case */
+ }
+
kfree((vm_offset_t)CTable, sizeof(vmmCntrlTable)); /* Toss the table because to tossed the last context */
act->mact.vmmControl = 0; /* Unmark us as vmm */
return KERN_SUCCESS;
}
+
+/*-----------------------------------------------------------------------
+** vmm_set_XA
+**
+** This function sets the eXtended Architecture flags for the specifed VM.
+**
+** We need to return the result in the return code rather than in the return parameters
+** because we need an architecture independent format so the results are actually
+** usable by the host. For example, the return parameters for 64-bit are 8 bytes wide vs.
+** 4 for 32-bit.
+**
+** Note that this function does a lot of the same stuff as vmm_tear_down_context
+** and vmm_init_context.
+**
+** Inputs:
+** act - pointer to current thread activation structure
+** index - index returned by vmm_init_context
+** flags - the extended architecture flags
+**
+**
+** Outputs:
+** KERN_SUCCESS if vm is valid and initialized. KERN_FAILURE if not.
+** Also, the internal flags are set and, additionally, the VM is completely reset.
+-----------------------------------------------------------------------*/
+
+kern_return_t vmm_set_XA(
+ thread_act_t act,
+ vmm_thread_index_t index,
+ unsigned int xaflags)
+{
+ vmmCntrlEntry *CEntry;
+ vmmCntrlTable *CTable;
+ vmm_state_page_t *vks;
+ vmm_version_t version;
+
+ if(xaflags & ~vmm64Bit) return KERN_FAILURE; /* We only support this one kind now */
+
+ CEntry = vmm_get_entry(act, index); /* Convert index to entry */
+ if (CEntry == NULL) return KERN_FAILURE; /* Either this isn't a vmm or the index is bogus */
+
+ ml_set_interrupts_enabled(TRUE); /* This can take a bit of time so pass interruptions */
+
+ if(CEntry->vmmFacCtx.FPUsave) { /* Is there any floating point context? */
+ toss_live_fpu(&CEntry->vmmFacCtx); /* Get rid of any live context here */
+ save_release((savearea *)CEntry->vmmFacCtx.FPUsave); /* Release it */
+ }
+
+ if(CEntry->vmmFacCtx.VMXsave) { /* Is there any vector context? */
+ toss_live_vec(&CEntry->vmmFacCtx); /* Get rid of any live context here */
+ save_release((savearea *)CEntry->vmmFacCtx.VMXsave); /* Release it */
+ }
+
+ CTable = act->mact.vmmControl; /* Get the control table address */
+ CTable->vmmGFlags = CTable->vmmGFlags & ~vmmLastAdSp; /* Make sure we don't try to automap into this */
+
+ CEntry->vmmFlags &= vmmInUse; /* Clear out all of the flags for this entry except in use */
+ CEntry->vmmXAFlgs = (xaflags & vmm64Bit) | (CEntry->vmmXAFlgs & ~vmm64Bit); /* Set the XA flags */
+ CEntry->vmmFacCtx.FPUsave = 0; /* Clear facility context control */
+ CEntry->vmmFacCtx.FPUlevel = 0; /* Clear facility context control */
+ CEntry->vmmFacCtx.FPUcpu = 0; /* Clear facility context control */
+ CEntry->vmmFacCtx.VMXsave = 0; /* Clear facility context control */
+ CEntry->vmmFacCtx.VMXlevel = 0; /* Clear facility context control */
+ CEntry->vmmFacCtx.VMXcpu = 0; /* Clear facility context control */
+
+ vks = CEntry->vmmContextKern; /* Get address of the context page */
+ version = vks->interface_version; /* Save the version code */
+ bzero((char *)vks, 4096); /* Clear all */
+
+ vks->interface_version = version; /* Set our version code */
+ vks->thread_index = index % vmmTInum; /* Tell the user the index for this virtual machine */
+
+ ml_set_interrupts_enabled(FALSE); /* No more interruptions */
+
+ return KERN_SUCCESS; /* Return the flags */
+}
+
+
/*-----------------------------------------------------------------------
** vmm_tear_down_all
**
spl_t s;
if(act->mact.specFlags & runningVM) { /* Are we actually in a context right now? */
- save = (savearea *)find_user_regs(act); /* Find the user state context */
+ save = find_user_regs(act); /* Find the user state context */
if(!save) { /* Did we find it? */
panic("vmm_tear_down_all: runningVM marked but no user state context\n");
return;
}
+ save->save_exception = kVmmBogusContext*4; /* Indicate that this context is bogus now */
s = splhigh(); /* Make sure interrupts are off */
vmm_force_exit(act, save); /* Force and exit from VM state */
splx(s); /* Restore interrupts */
if(CTable = act->mact.vmmControl) { /* Do we have a vmm control block? */
- for(cvi = 1; cvi <= kVmmMaxContextsPerThread; cvi++) { /* Look at all slots */
+
+ for(cvi = 1; cvi <= kVmmMaxContexts; cvi++) { /* Look at all slots */
if(CTable->vmmc[cvi - 1].vmmFlags & vmmInUse) { /* Is this one in use */
ret = vmm_tear_down_context(act, cvi); /* Take down the found context */
if(ret != KERN_SUCCESS) { /* Did it go away? */
}
}
}
+
+/*
+ * Note that all address apces should be gone here.
+ */
if(act->mact.vmmControl) { /* Did we find one? */
panic("vmm_tear_down_all: control table did not get deallocated\n"); /* Table did not go away */
}
** vmm_map_page
**
** This function maps a page from within the client's logical
-** address space into the alternate address space of the
-** Virtual Machine Monitor context.
+** address space into the alternate address space.
**
** The page need not be locked or resident. If not resident, it will be faulted
** in by this code, which may take some time. Also, if the page is not locked,
**
** Inputs:
** act - pointer to current thread activation
-** index - index of vmm state for this page
+** index - index of address space to map into
** va - virtual address within the client's address
-** space (must be page aligned)
+** space
** ava - virtual address within the alternate address
-** space (must be page aligned)
+** space
** prot - protection flags
**
** Note that attempted mapping of areas in nested pmaps (shared libraries) or block mapped
kern_return_t vmm_map_page(
thread_act_t act,
- vmm_thread_index_t index,
- vm_offset_t cva,
- vm_offset_t ava,
+ vmm_adsp_id_t index,
+ addr64_t cva,
+ addr64_t ava,
vm_prot_t prot)
{
kern_return_t ret;
vmmCntrlEntry *CEntry;
- vm_offset_t phys_addr;
- register mapping *mpv, *mp, *nmpv, *nmp;
+ register mapping *mp;
struct phys_entry *pp;
- pmap_t mpmap;
vm_map_t map;
+ addr64_t ova, nextva;
+ pmap_t pmap;
+
+ pmap = vmm_get_adsp(act, index); /* Get the pmap for this address space */
+ if(!pmap) return KERN_FAILURE; /* Bogus address space, no VMs, or we can't make a pmap, failure... */
+
+ if(ava > vm_max_address) return kVmmInvalidAddress; /* Does the machine support an address of this size? */
- CEntry = vmm_get_entry(act, index); /* Get and validate the index */
- if (CEntry == NULL)return KERN_FAILURE; /* No good, failure... */
-
-/*
- * Find out if we have already mapped the address and toss it out if so.
- */
- mp = hw_lock_phys_vir(CEntry->vmmPmap->space, ava); /* See if there is already a mapping */
- if((unsigned int)mp & 1) { /* Did we timeout? */
- panic("vmm_map_page: timeout locking physical entry for alternate virtual address (%08X)\n", ava); /* Yeah, scream about it! */
- return KERN_FAILURE; /* Bad hair day, return FALSE... */
- }
- if(mp) { /* If it was there, toss it */
- mpv = hw_cpv(mp); /* Convert mapping block to virtual */
- hw_unlock_bit((unsigned int *)&mpv->physent->phys_link, PHYS_LOCK); /* We're done, unlock the physical entry */
- (void)mapping_remove(CEntry->vmmPmap, ava); /* Throw away the mapping. we're about to replace it */
- }
map = current_act()->map; /* Get the current map */
while(1) { /* Keep trying until we get it or until we fail */
- if(hw_cvp_blk(map->pmap, cva)) return KERN_FAILURE; /* Make sure that there is no block map at this address */
- mp = hw_lock_phys_vir(map->pmap->space, cva); /* Lock the physical entry for emulator's page */
- if((unsigned int)mp&1) { /* Did we timeout? */
- panic("vmm_map_page: timeout locking physical entry for emulator virtual address (%08X)\n", cva); /* Yeah, scream about it! */
- return KERN_FAILURE; /* Bad hair day, return FALSE... */
- }
+ mp = mapping_find(map->pmap, cva, &nextva, 0); /* Find the mapping for this address */
- if(mp) { /* We found it... */
- mpv = hw_cpv(mp); /* Convert mapping block to virtual */
- if(!(mpv->PTEr & 1)) break; /* If we are not write protected, we are ok... */
- }
+ if(mp) break; /* We found it */
ml_set_interrupts_enabled(TRUE); /* Enable interruptions */
- ret = vm_fault(map, trunc_page(cva), VM_PROT_READ | VM_PROT_WRITE, FALSE); /* Didn't find it, try to fault it in read/write... */
+ ret = vm_fault(map, trunc_page_32((vm_offset_t)cva), VM_PROT_READ | VM_PROT_WRITE, FALSE); /* Didn't find it, try to fault it in read/write... */
ml_set_interrupts_enabled(FALSE); /* Disable interruptions */
if (ret != KERN_SUCCESS) return KERN_FAILURE; /* There isn't a page there, return... */
}
-
- if(!mpv->physent) { /* Is this an I/O area, e.g., framebuffer? */
- return KERN_FAILURE; /* Yes, we won't map it... */
+ if(mp->mpFlags & (mpBlock | mpNest | mpSpecial)) { /* If this is a block, a nest, or some other special thing, we can't map it */
+ mapping_drop_busy(mp); /* We have everything we need from the mapping */
+ return KERN_FAILURE; /* Leave in shame */
+ }
+
+ while(1) { /* Keep trying the enter until it goes in */
+ ova = mapping_make(pmap, ava, mp->mpPAddr, 0, 1, prot); /* Enter the mapping into the pmap */
+ if(!ova) break; /* If there were no collisions, we are done... */
+ mapping_remove(pmap, ova); /* Remove the mapping that collided */
}
-/*
- * Now we make a mapping using all of the attributes of the source page except for protection.
- * Also specify that the physical entry is locked.
- */
- nmpv = mapping_make(CEntry->vmmPmap, mpv->physent, (ava & -PAGE_SIZE),
- (mpv->physent->pte1 & -PAGE_SIZE), prot, ((mpv->physent->pte1 >> 3) & 0xF), 1);
+ mapping_drop_busy(mp); /* We have everything we need from the mapping */
- hw_unlock_bit((unsigned int *)&mpv->physent->phys_link, PHYS_LOCK); /* Unlock the physical entry now, we're done with it */
-
- CEntry->vmmLastMap = ava & -PAGE_SIZE; /* Remember the last mapping we made */
- CEntry->vmmFlags |= vmmMapDone; /* Set that we did a map operation */
+ if (!((per_proc_info[cpu_number()].spcFlags) & FamVMmode)) {
+ act->mact.vmmControl->vmmLastMap = ava & 0xFFFFFFFFFFFFF000ULL; /* Remember the last mapping we made */
+ act->mact.vmmControl->vmmGFlags = (act->mact.vmmControl->vmmGFlags & ~vmmLastAdSp) | index; /* Remember last address space */
+ }
return KERN_SUCCESS;
}
+/*-----------------------------------------------------------------------
+** vmm_map_execute
+**
+** This function maps a page from within the client's logical
+** address space into the alternate address space of the
+** Virtual Machine Monitor context and then directly starts executing.
+**
+** See description of vmm_map_page for details.
+**
+** Inputs:
+** Index is used for both the context and the address space ID.
+** index[24:31] is the context id and index[16:23] is the address space.
+** if the address space ID is 0, the context ID is used for it.
+**
+** Outputs:
+** Normal exit is to run the VM. Abnormal exit is triggered via a
+** non-KERN_SUCCESS return from vmm_map_page or later during the
+** attempt to transition into the VM.
+-----------------------------------------------------------------------*/
+
+vmm_return_code_t vmm_map_execute(
+ thread_act_t act,
+ vmm_thread_index_t index,
+ addr64_t cva,
+ addr64_t ava,
+ vm_prot_t prot)
+{
+ kern_return_t ret;
+ vmmCntrlEntry *CEntry;
+ unsigned int adsp;
+ vmm_thread_index_t cndx;
+
+ cndx = index & 0xFF; /* Clean it up */
+
+ CEntry = vmm_get_entry(act, cndx); /* Get and validate the index */
+ if (CEntry == NULL) return kVmmBogusContext; /* Return bogus context */
+
+ if (((per_proc_info[cpu_number()].spcFlags) & FamVMmode) && (CEntry != act->mact.vmmCEntry))
+ return kVmmBogusContext; /* Yes, invalid index in Fam */
+
+ adsp = (index >> 8) & 0xFF; /* Get any requested address space */
+ if(!adsp) adsp = (index & 0xFF); /* If 0, use context ID as address space ID */
+
+ ret = vmm_map_page(act, adsp, cva, ava, prot); /* Go try to map the page on in */
+
+
+ if(ret == KERN_SUCCESS) {
+ act->mact.vmmControl->vmmLastMap = ava & 0xFFFFFFFFFFFFF000ULL; /* Remember the last mapping we made */
+ act->mact.vmmControl->vmmGFlags = (act->mact.vmmControl->vmmGFlags & ~vmmLastAdSp) | cndx; /* Remember last address space */
+ vmm_execute_vm(act, cndx); /* Return was ok, launch the VM */
+ }
+
+ return ret; /* We had trouble mapping in the page */
+
+}
+
+/*-----------------------------------------------------------------------
+** vmm_map_list
+**
+** This function maps a list of pages into various address spaces
+**
+** Inputs:
+** act - pointer to current thread activation
+** index - index of default address space (used if not specifed in list entry
+** count - number of pages to release
+** flavor - 0 if 32-bit version, 1 if 64-bit
+** vmcpComm in the comm page contains up to kVmmMaxMapPages to map
+**
+** Outputs:
+** kernel return code indicating success or failure
+** KERN_FAILURE is returned if kVmmMaxUnmapPages is exceeded
+** or the vmm_map_page call fails.
+** We return kVmmInvalidAddress if virtual address size is not supported
+-----------------------------------------------------------------------*/
+
+kern_return_t vmm_map_list(
+ thread_act_t act,
+ vmm_adsp_id_t index,
+ unsigned int cnt,
+ unsigned int flavor)
+{
+ vmmCntrlEntry *CEntry;
+ boolean_t ret;
+ unsigned int i;
+ vmmMList *lst;
+ vmmMList64 *lstx;
+ addr64_t cva;
+ addr64_t ava;
+ vm_prot_t prot;
+ vmm_adsp_id_t adsp;
+
+ CEntry = vmm_get_entry(act, index); /* Convert index to entry */
+ if (CEntry == NULL) return KERN_FAILURE; /* Either this isn't a vmm or the index is bogus */
+
+ if(cnt > kVmmMaxMapPages) return KERN_FAILURE; /* They tried to map too many */
+ if(!cnt) return KERN_SUCCESS; /* If they said none, we're done... */
+
+ lst = (vmmMList *)&((vmm_comm_page_t *)CEntry->vmmContextKern)->vmcpComm[0]; /* Point to the first entry */
+ lstx = (vmmMList64 *)&((vmm_comm_page_t *)CEntry->vmmContextKern)->vmcpComm[0]; /* Point to the first entry */
+
+ for(i = 0; i < cnt; i++) { /* Step and release all pages in list */
+ if(flavor) { /* Check if 32- or 64-bit addresses */
+ cva = lstx[i].vmlva; /* Get the 64-bit actual address */
+ ava = lstx[i].vmlava; /* Get the 64-bit guest address */
+ }
+ else {
+ cva = lst[i].vmlva; /* Get the 32-bit actual address */
+ ava = lst[i].vmlava; /* Get the 32-bit guest address */
+ }
+
+ prot = ava & vmmlProt; /* Extract the protection bits */
+ adsp = (ava & vmmlAdID) >> 4; /* Extract an explicit address space request */
+ if(!adsp) adsp = index - 1; /* If no explicit, use supplied default */
+ ava = ava &= 0xFFFFFFFFFFFFF000ULL; /* Clean up the address */
+
+ ret = vmm_map_page(act, index, cva, ava, prot); /* Go try to map the page on in */
+ if(ret != KERN_SUCCESS) return ret; /* Bail if any error */
+ }
+
+ return KERN_SUCCESS ; /* Return... */
+}
+
/*-----------------------------------------------------------------------
** vmm_get_page_mapping
**
** this call could return the wrong one. Moral of the story: no aliases.
-----------------------------------------------------------------------*/
-vm_offset_t vmm_get_page_mapping(
+addr64_t vmm_get_page_mapping(
thread_act_t act,
- vmm_thread_index_t index,
- vm_offset_t va)
+ vmm_adsp_id_t index,
+ addr64_t va)
{
vmmCntrlEntry *CEntry;
- vm_offset_t ova;
- register mapping *mpv, *mp, *nmpv, *nmp;
+ register mapping *mp;
pmap_t pmap;
+ addr64_t nextva, sva;
+ ppnum_t pa;
- CEntry = vmm_get_entry(act, index); /* Get and validate the index */
- if (CEntry == NULL)return -1; /* No good, failure... */
+ pmap = vmm_get_adsp(act, index); /* Get and validate the index */
+ if (!pmap)return -1; /* No good, failure... */
- mp = hw_lock_phys_vir(CEntry->vmmPmap->space, va); /* Look up the mapping */
- if((unsigned int)mp & 1) { /* Did we timeout? */
- panic("vmm_get_page_mapping: timeout locking physical entry for alternate virtual address (%08X)\n", va); /* Yeah, scream about it! */
- return -1; /* Bad hair day, return FALSE... */
- }
+ mp = mapping_find(pmap, va, &nextva, 0); /* Find our page */
+
if(!mp) return -1; /* Not mapped, return -1 */
- mpv = hw_cpv(mp); /* Convert mapping block to virtual */
- pmap = current_act()->map->pmap; /* Get the current pmap */
- ova = -1; /* Assume failure for now */
+ pa = mp->mpPAddr; /* Remember the page address */
+
+ mapping_drop_busy(mp); /* Go ahead and relase the mapping now */
- for(nmpv = hw_cpv(mpv->physent->phys_link); nmpv; nmpv = hw_cpv(nmpv->next)) { /* Scan 'em all */
-
- if(nmpv->pmap != pmap) continue; /* Skip all the rest if this is not the right pmap... */
-
- ova = ((((unsigned int)nmpv->PTEhash & -64) << 6) ^ (pmap->space << 12)) & 0x003FF000; /* Backward hash to the wrapped VADDR */
- ova = ova | ((nmpv->PTEv << 1) & 0xF0000000); /* Move in the segment number */
- ova = ova | ((nmpv->PTEv << 22) & 0x0FC00000); /* Add in the API for the top of the address */
- break; /* We're done now, pass virtual address back */
- }
+ pmap = current_act()->map->pmap; /* Get the current pmap */
+ sva = mapping_p2v(pmap, pa); /* Now find the source virtual */
- hw_unlock_bit((unsigned int *)&mpv->physent->phys_link, PHYS_LOCK); /* We're done, unlock the physical entry */
+ if(sva != 0) return sva; /* We found it... */
- if(ova == -1) panic("vmm_get_page_mapping: could not back-map alternate va (%08X)\n", va); /* We are bad wrong if we can't find it */
+ panic("vmm_get_page_mapping: could not back-map alternate va (%016llX)\n", va); /* We are bad wrong if we can't find it */
- return ova;
+ return -1;
}
/*-----------------------------------------------------------------------
kern_return_t vmm_unmap_page(
thread_act_t act,
- vmm_thread_index_t index,
- vm_offset_t va)
+ vmm_adsp_id_t index,
+ addr64_t va)
+{
+ vmmCntrlEntry *CEntry;
+ addr64_t nadd;
+ pmap_t pmap;
+ kern_return_t kern_result = KERN_SUCCESS;
+
+ pmap = vmm_get_adsp(act, index); /* Get and validate the index */
+ if (!pmap)return -1; /* No good, failure... */
+
+ nadd = mapping_remove(pmap, va); /* Toss the mapping */
+
+ return ((nadd & 1) ? KERN_FAILURE : KERN_SUCCESS); /* Return... */
+}
+
+/*-----------------------------------------------------------------------
+** vmm_unmap_list
+**
+** This function unmaps a list of pages from the alternate's logical
+** address space.
+**
+** Inputs:
+** act - pointer to current thread activation
+** index - index of vmm state for this page
+** count - number of pages to release
+** flavor - 0 if 32-bit, 1 if 64-bit
+** vmcpComm in the comm page contains up to kVmmMaxUnmapPages to unmap
+**
+** Outputs:
+** kernel return code indicating success or failure
+** KERN_FAILURE is returned if kVmmMaxUnmapPages is exceeded
+-----------------------------------------------------------------------*/
+
+kern_return_t vmm_unmap_list(
+ thread_act_t act,
+ vmm_adsp_id_t index,
+ unsigned int cnt,
+ unsigned int flavor)
{
vmmCntrlEntry *CEntry;
boolean_t ret;
kern_return_t kern_result = KERN_SUCCESS;
+ unsigned int *pgaddr, i;
+ addr64_t gva;
+ vmmUMList *lst;
+ vmmUMList64 *lstx;
+ pmap_t pmap;
+ int adsp;
- CEntry = vmm_get_entry(act, index); /* Get and validate the index */
- if (CEntry == NULL)return -1; /* No good, failure... */
+ CEntry = vmm_get_entry(act, index); /* Convert index to entry */
+ if (CEntry == NULL) return KERN_FAILURE; /* Either this isn't a vmm or the index is bogus */
+
+ if(cnt > kVmmMaxUnmapPages) return KERN_FAILURE; /* They tried to unmap too many */
+ if(!cnt) return KERN_SUCCESS; /* If they said none, we're done... */
- ret = mapping_remove(CEntry->vmmPmap, va); /* Toss the mapping */
+ lst = lstx = &((vmm_comm_page_t *)CEntry->vmmContextKern)->vmcpComm[0]; /* Point to the first entry */
- return (ret ? KERN_SUCCESS : KERN_FAILURE); /* Return... */
+ for(i = 0; i < cnt; i++) { /* Step and release all pages in list */
+ if(flavor) { /* Check if 32- or 64-bit addresses */
+ gva = lstx[i].vmlava; /* Get the 64-bit guest address */
+ }
+ else {
+ gva = lst[i].vmlava; /* Get the 32-bit guest address */
+ }
+
+ adsp = (gva & vmmlAdID) >> 4; /* Extract an explicit address space request */
+ if(!adsp) adsp = index - 1; /* If no explicit, use supplied default */
+ pmap = act->mact.vmmControl->vmmAdsp[adsp]; /* Get the pmap for this request */
+ if(!pmap) continue; /* Ain't nuthin' mapped here, no durn map... */
+
+ gva = gva &= 0xFFFFFFFFFFFFF000ULL; /* Clean up the address */
+ (void)mapping_remove(pmap, gva); /* Toss the mapping */
+ }
+
+ return KERN_SUCCESS ; /* Return... */
}
/*-----------------------------------------------------------------------
void vmm_unmap_all_pages(
thread_act_t act,
- vmm_thread_index_t index)
+ vmm_adsp_id_t index)
{
vmmCntrlEntry *CEntry;
+ pmap_t pmap;
- CEntry = vmm_get_entry(act, index); /* Convert index to entry */
- if (CEntry == NULL) return; /* Either this isn't vmm thread or the index is bogus */
+ pmap = vmm_get_adsp(act, index); /* Convert index to entry */
+ if (!pmap) return; /* Either this isn't vmm thread or the index is bogus */
/*
* Note: the pmap code won't deal with the last page in the address space, so handle it explicitly
*/
- mapping_remove(CEntry->vmmPmap, 0xFFFFF000); /* Remove final page explicitly because we might have mapped it */
- pmap_remove(CEntry->vmmPmap, 0, 0xFFFFF000); /* Remove all entries from this map */
+ mapping_remove(pmap, 0xFFFFFFFFFFFFF000LL); /* Remove final page explicitly because we might have mapped it */
+ pmap_remove(pmap, 0, 0xFFFFFFFFFFFFF000LL); /* Remove all entries from this map */
return;
}
boolean_t vmm_get_page_dirty_flag(
thread_act_t act,
- vmm_thread_index_t index,
- vm_offset_t va,
+ vmm_adsp_id_t index,
+ addr64_t va,
unsigned int reset)
{
vmmCntrlEntry *CEntry;
register mapping *mpv, *mp;
unsigned int RC;
+ pmap_t pmap;
- CEntry = vmm_get_entry(act, index); /* Convert index to entry */
- if (CEntry == NULL) return 1; /* Either this isn't vmm thread or the index is bogus */
+ pmap = vmm_get_adsp(act, index); /* Convert index to entry */
+ if (!pmap) return 1; /* Either this isn't vmm thread or the index is bogus */
- mp = hw_lock_phys_vir(CEntry->vmmPmap->space, va); /* Look up the mapping */
- if((unsigned int)mp & 1) { /* Did we timeout? */
- panic("vmm_get_page_dirty_flag: timeout locking physical entry for alternate virtual address (%08X)\n", va); /* Yeah, scream about it! */
- return 1; /* Bad hair day, return dirty... */
+ RC = hw_test_rc(pmap, (addr64_t)va, reset); /* Fetch the RC bits and clear if requested */
+
+ switch (RC & mapRetCode) { /* Decode return code */
+
+ case mapRtOK: /* Changed */
+ return ((RC & (unsigned int)mpC) == (unsigned int)mpC); /* Return if dirty or not */
+ break;
+
+ case mapRtNotFnd: /* Didn't find it */
+ return 1; /* Return dirty */
+ break;
+
+ default:
+ panic("vmm_get_page_dirty_flag: hw_test_rc failed - rc = %d, pmap = %08X, va = %016llX\n", RC, pmap, va);
+
}
- if(!mp) return 1; /* Not mapped, return dirty... */
+
+ return 1; /* Return the change bit */
+}
+
+
+/*-----------------------------------------------------------------------
+** vmm_protect_page
+**
+** This function sets the protection bits of a mapped page
+**
+** Inputs:
+** act - pointer to current thread activation
+** index - index of vmm state for this page
+** va - virtual address within the vmm's address
+** space
+** prot - Protection flags
+**
+** Outputs:
+** none
+** Protection bits of the mapping are modifed
+**
+-----------------------------------------------------------------------*/
+
+kern_return_t vmm_protect_page(
+ thread_act_t act,
+ vmm_adsp_id_t index,
+ addr64_t va,
+ vm_prot_t prot)
+{
+ vmmCntrlEntry *CEntry;
+ addr64_t nextva;
+ int ret;
+ pmap_t pmap;
+
+ pmap = vmm_get_adsp(act, index); /* Convert index to entry */
+ if (!pmap) return KERN_FAILURE; /* Either this isn't vmm thread or the index is bogus */
- RC = hw_test_rc(mp, reset); /* Fetch the RC bits and clear if requested */
+ ret = hw_protect(pmap, va, prot, &nextva); /* Try to change the protect here */
- mpv = hw_cpv(mp); /* Convert mapping block to virtual */
- hw_unlock_bit((unsigned int *)&mpv->physent->phys_link, PHYS_LOCK); /* We're done, unlock the physical entry */
+ switch (ret) { /* Decode return code */
+
+ case mapRtOK: /* All ok... */
+ break; /* Outta here */
+
+ case mapRtNotFnd: /* Didn't find it */
+ return KERN_SUCCESS; /* Ok, return... */
+ break;
+
+ default:
+ panic("vmm_protect_page: hw_protect failed - rc = %d, pmap = %08X, va = %016llX\n", ret, pmap, (addr64_t)va);
+
+ }
+
+ if (!((per_proc_info[cpu_number()].spcFlags) & FamVMmode)) {
+ act->mact.vmmControl->vmmLastMap = va & 0xFFFFFFFFFFFFF000ULL; /* Remember the last mapping we made */
+ act->mact.vmmControl->vmmGFlags = (act->mact.vmmControl->vmmGFlags & ~vmmLastAdSp) | index; /* Remember last address space */
+ }
- return (RC & 1); /* Return the change bit */
+ return KERN_SUCCESS; /* Return */
+}
+
+
+/*-----------------------------------------------------------------------
+** vmm_protect_execute
+**
+** This function sets the protection bits of a mapped page
+** and then directly starts executing.
+**
+** See description of vmm_protect_page for details
+**
+** Inputs:
+** See vmm_protect_page and vmm_map_execute
+**
+** Outputs:
+** Normal exit is to run the VM. Abnormal exit is triggered via a
+** non-KERN_SUCCESS return from vmm_map_page or later during the
+** attempt to transition into the VM.
+-----------------------------------------------------------------------*/
+
+vmm_return_code_t vmm_protect_execute(
+ thread_act_t act,
+ vmm_thread_index_t index,
+ addr64_t va,
+ vm_prot_t prot)
+{
+ kern_return_t ret;
+ vmmCntrlEntry *CEntry;
+ unsigned int adsp;
+ vmm_thread_index_t cndx;
+
+ cndx = index & 0xFF; /* Clean it up */
+ CEntry = vmm_get_entry(act, cndx); /* Get and validate the index */
+ if (CEntry == NULL) return kVmmBogusContext; /* Return bogus context */
+
+ adsp = (index >> 8) & 0xFF; /* Get any requested address space */
+ if(!adsp) adsp = (index & 0xFF); /* If 0, use context ID as address space ID */
+
+ if (((per_proc_info[cpu_number()].spcFlags) & FamVMmode) && (CEntry != act->mact.vmmCEntry))
+ return kVmmBogusContext; /* Yes, invalid index in Fam */
+
+ ret = vmm_protect_page(act, adsp, va, prot); /* Go try to change access */
+
+ if(ret == KERN_SUCCESS) {
+ act->mact.vmmControl->vmmLastMap = va & 0xFFFFFFFFFFFFF000ULL; /* Remember the last mapping we made */
+ act->mact.vmmControl->vmmGFlags = (act->mact.vmmControl->vmmGFlags & ~vmmLastAdSp) | cndx; /* Remember last address space */
+ vmm_execute_vm(act, cndx); /* Return was ok, launch the VM */
+ }
+
+ return ret; /* We had trouble of some kind (shouldn't happen) */
+
}
+
/*-----------------------------------------------------------------------
** vmm_get_float_state
**
vmmCntrlEntry *CEntry;
vmmCntrlTable *CTable;
int i;
- register struct savearea *sv;
+ register struct savearea_fpu *sv;
CEntry = vmm_get_entry(act, index); /* Convert index to entry */
if (CEntry == NULL) return KERN_FAILURE; /* Either this isn't vmm thread or the index is bogus */
act->mact.specFlags &= ~floatCng; /* Clear the special flag */
CEntry->vmmContextKern->vmmStat &= ~vmmFloatCngd; /* Clear the change indication */
-
- if(sv = (struct savearea *)CEntry->vmmFPU_pcb) { /* Is there context yet? */
- bcopy((char *)&sv->save_fp0, (char *)&(CEntry->vmmContextKern->vmm_proc_state.ppcFPRs[0].d), sizeof(vmm_processor_state_t)); /* 32 registers plus status and pad */
+
+ fpu_save(&CEntry->vmmFacCtx); /* Save context if live */
+
+ if(sv = CEntry->vmmFacCtx.FPUsave) { /* Is there context yet? */
+ bcopy((char *)&sv->save_fp0, (char *)&(CEntry->vmmContextKern->vmm_proc_state.ppcFPRs), 32 * 8); /* 32 registers */
return KERN_SUCCESS;
}
- CEntry->vmmContextKern->vmm_proc_state.ppcFPSCR.i[0] = 0; /* Clear FPSCR */
- CEntry->vmmContextKern->vmm_proc_state.ppcFPSCR.i[1] = 0; /* Clear FPSCR */
- for(i = 0; i < 32; i++) { /* Initialize floating points */
+ for(i = 0; i < 32; i++) { /* Initialize floating points */
CEntry->vmmContextKern->vmm_proc_state.ppcFPRs[i].d = FloatInit; /* Initial value */
}
vmmCntrlTable *CTable;
int i, j;
unsigned int vrvalidwrk;
- register struct savearea *sv;
+ register struct savearea_vec *sv;
CEntry = vmm_get_entry(act, index); /* Convert index to entry */
if (CEntry == NULL) return KERN_FAILURE; /* Either this isn't vmm thread or the index is bogus */
+
+ vec_save(&CEntry->vmmFacCtx); /* Save context if live */
act->mact.specFlags &= ~vectorCng; /* Clear the special flag */
CEntry->vmmContextKern->vmmStat &= ~vmmVectCngd; /* Clear the change indication */
- if(sv = (savearea *)CEntry->vmmVMX_pcb) { /* Is there context yet? */
+ if(sv = CEntry->vmmFacCtx.VMXsave) { /* Is there context yet? */
vrvalidwrk = sv->save_vrvalid; /* Get the valid flags */
- for(j=0; j < 4; j++) { /* Set value for vscr */
- CEntry->vmmContextKern->vmm_proc_state.ppcVSCR.i[j] = sv->save_vscr[j];
- }
-
for(i = 0; i < 32; i++) { /* Copy the saved registers and invalidate the others */
if(vrvalidwrk & 0x80000000) { /* Do we have a valid value here? */
for(j = 0; j < 4; j++) { /* If so, copy it over */
return KERN_SUCCESS;
}
- for(j = 0; j < 4; j++) { /* Initialize vscr to java mode */
- CEntry->vmmContextKern->vmm_proc_state.ppcVSCR.i[j] = 0; /* Initial value */
- }
-
for(i = 0; i < 32; i++) { /* Initialize vector registers */
for(j=0; j < 4; j++) { /* Do words */
CEntry->vmmContextKern->vmm_proc_state.ppcVRs[i].i[j] = QNaNbarbarian[j]; /* Initial value */
CEntry = vmm_get_entry(act, index); /* Convert index to entry */
if (CEntry == NULL) return KERN_FAILURE; /* Either this isn't vmm thread or the index is bogus */
- CEntry->vmmTimer.hi = timerhi; /* Set the high order part */
- CEntry->vmmTimer.lo = timerlo; /* Set the low order part */
+ CEntry->vmmTimer = ((uint64_t)timerhi << 32) | timerlo;
vmm_timer_pop(act); /* Go adjust all of the timer stuff */
return KERN_SUCCESS; /* Leave now... */
**
** This function causes the timer for a specified VM to be
** returned in return_params[0] and return_params[1].
+** Note that this is kind of funky for 64-bit VMs because we
+** split the timer into two parts so that we still set parms 0 and 1.
+** Obviously, we don't need to do this because the parms are 8 bytes
+** wide.
**
**
** Inputs:
CEntry = vmm_get_entry(act, index); /* Convert index to entry */
if (CEntry == NULL) return KERN_FAILURE; /* Either this isn't vmm thread or the index is bogus */
- CEntry->vmmContextKern->return_params[0] = CEntry->vmmTimer.hi; /* Return the last timer value */
- CEntry->vmmContextKern->return_params[1] = CEntry->vmmTimer.lo; /* Return the last timer value */
-
+ if(CEntry->vmmXAFlgs & vmm64Bit) { /* A 64-bit virtual machine? */
+ CEntry->vmmContextKern->vmmRet.vmmrp64.return_params[0] = (uint32_t)(CEntry->vmmTimer >> 32); /* Return the last timer value */
+ CEntry->vmmContextKern->vmmRet.vmmrp64.return_params[1] = (uint32_t)CEntry->vmmTimer; /* Return the last timer value */
+ }
+ else {
+ CEntry->vmmContextKern->vmmRet.vmmrp32.return_params[0] = (CEntry->vmmTimer >> 32); /* Return the last timer value */
+ CEntry->vmmContextKern->vmmRet.vmmrp32.return_params[1] = (uint32_t)CEntry->vmmTimer; /* Return the last timer value */
+ }
return KERN_SUCCESS;
}
-
/*-----------------------------------------------------------------------
** vmm_timer_pop
**
vmmCntrlEntry *CEntry;
vmmCntrlTable *CTable;
int cvi, any;
- AbsoluteTime now, soonest;
+ uint64_t now, soonest;
savearea *sv;
if(!((unsigned int)act->mact.vmmControl & 0xFFFFFFFE)) { /* Are there any virtual machines? */
panic("vmm_timer_pop: No virtual machines defined; act = %08X\n", act);
}
- soonest.hi = 0xFFFFFFFF; /* Max time */
- soonest.lo = 0xFFFFFFFF; /* Max time */
+ soonest = 0xFFFFFFFFFFFFFFFFULL; /* Max time */
- clock_get_uptime((AbsoluteTime *)&now); /* What time is it? */
+ clock_get_uptime(&now); /* What time is it? */
CTable = act->mact.vmmControl; /* Make this easier */
any = 0; /* Haven't found a running unexpired timer yet */
- for(cvi = 0; cvi < kVmmMaxContextsPerThread; cvi++) { /* Cycle through all and check time now */
+ for(cvi = 0; cvi < kVmmMaxContexts; cvi++) { /* Cycle through all and check time now */
if(!(CTable->vmmc[cvi].vmmFlags & vmmInUse)) continue; /* Do not check if the entry is empty */
- if(!(CTable->vmmc[cvi].vmmTimer.hi | CTable->vmmc[cvi].vmmTimer.hi)) { /* Is the timer reset? */
+ if(CTable->vmmc[cvi].vmmTimer == 0) { /* Is the timer reset? */
CTable->vmmc[cvi].vmmFlags &= ~vmmTimerPop; /* Clear timer popped */
CTable->vmmc[cvi].vmmContextKern->vmmStat &= ~vmmTimerPop; /* Clear timer popped */
continue; /* Check next */
}
- if (CMP_ABSOLUTETIME(&CTable->vmmc[cvi].vmmTimer, &now) <= 0) {
+ if (CTable->vmmc[cvi].vmmTimer <= now) {
CTable->vmmc[cvi].vmmFlags |= vmmTimerPop; /* Set timer popped here */
CTable->vmmc[cvi].vmmContextKern->vmmStat |= vmmTimerPop; /* Set timer popped here */
if((unsigned int)&CTable->vmmc[cvi] == (unsigned int)act->mact.vmmCEntry) { /* Is this the running VM? */
- sv = (savearea *)find_user_regs(act); /* Get the user state registers */
+ sv = find_user_regs(act); /* Get the user state registers */
if(!sv) { /* Did we find something? */
panic("vmm_timer_pop: no user context; act = %08X\n", act);
}
- sv->save_exception = T_IN_VAIN; /* Indicate that this is a null exception */
+ sv->save_exception = kVmmReturnNull*4; /* Indicate that this is a null exception */
vmm_force_exit(act, sv); /* Intercept a running VM */
}
continue; /* Check the rest */
any = 1; /* Show we found an active unexpired timer */
- if (CMP_ABSOLUTETIME(&CTable->vmmc[cvi].vmmTimer, &soonest) < 0) {
- soonest.hi = CTable->vmmc[cvi].vmmTimer.hi; /* Set high order lowest timer */
- soonest.lo = CTable->vmmc[cvi].vmmTimer.lo; /* Set low order lowest timer */
- }
+ if (CTable->vmmc[cvi].vmmTimer < soonest)
+ soonest = CTable->vmmc[cvi].vmmTimer;
}
if(any) {
- if (!(act->mact.qactTimer.hi | act->mact.qactTimer.lo) ||
- (CMP_ABSOLUTETIME(&soonest, &act->mact.qactTimer) <= 0)) {
- act->mact.qactTimer.hi = soonest.hi; /* Set high order lowest timer */
- act->mact.qactTimer.lo = soonest.lo; /* Set low order lowest timer */
+ if (act->mact.qactTimer == 0 || soonest <= act->mact.qactTimer)
+ act->mact.qactTimer = soonest; /* Set lowest timer */
+ }
+
+ return;
+}
+
+
+
+/*-----------------------------------------------------------------------
+** vmm_stop_vm
+**
+** This function prevents the specified VM(s) to from running.
+** If any is currently executing, the execution is intercepted
+** with a code of kVmmStopped. Note that execution of the VM is
+** blocked until a vmmExecuteVM is called with the start flag set to 1.
+** This provides the ability for a thread to stop execution of a VM and
+** insure that it will not be run until the emulator has processed the
+** "virtual" interruption.
+**
+** Inputs:
+** vmmask - 32 bit mask corresponding to the VMs to put in stop state
+** NOTE: if this mask is all 0s, any executing VM is intercepted with
+* a kVmmStopped (but not marked stopped), otherwise this is a no-op. Also note that there
+** note that there is a potential race here and the VM may not stop.
+**
+** Outputs:
+** kernel return code indicating success
+** or if no VMs are enabled, an invalid syscall exception.
+-----------------------------------------------------------------------*/
+
+int vmm_stop_vm(struct savearea *save)
+{
+
+ thread_act_t act;
+ vmmCntrlTable *CTable;
+ int cvi, i;
+ task_t task;
+ thread_act_t fact;
+ unsigned int vmmask;
+ ReturnHandler *stopapc;
+
+ ml_set_interrupts_enabled(TRUE); /* This can take a bit of time so pass interruptions */
+
+ task = current_task(); /* Figure out who we are */
+
+ task_lock(task); /* Lock our task */
+
+ fact = (thread_act_t)task->thr_acts.next; /* Get the first activation on task */
+ act = 0; /* Pretend we didn't find it yet */
+
+ for(i = 0; i < task->thr_act_count; i++) { /* All of the activations */
+ if(fact->mact.vmmControl) { /* Is this a virtual machine monitor? */
+ act = fact; /* Yeah... */
+ break; /* Bail the loop... */
+ }
+ fact = (thread_act_t)fact->thr_acts.next; /* Go to the next one */
+ }
+
+ if(!((unsigned int)act)) { /* See if we have VMMs yet */
+ task_unlock(task); /* No, unlock the task */
+ ml_set_interrupts_enabled(FALSE); /* Set back interruptions */
+ return 0; /* Go generate a syscall exception */
+ }
+
+ act_lock_thread(act); /* Make sure this stays 'round */
+ task_unlock(task); /* Safe to release now */
+
+ CTable = act->mact.vmmControl; /* Get the pointer to the table */
+
+ if(!((unsigned int)CTable & -2)) { /* Are there any all the way up yet? */
+ act_unlock_thread(act); /* Unlock the activation */
+ ml_set_interrupts_enabled(FALSE); /* Set back interruptions */
+ return 0; /* Go generate a syscall exception */
+ }
+
+ if(!(vmmask = save->save_r3)) { /* Get the stop mask and check if all zeros */
+ act_unlock_thread(act); /* Unlock the activation */
+ ml_set_interrupts_enabled(FALSE); /* Set back interruptions */
+ save->save_r3 = KERN_SUCCESS; /* Set success */
+ return 1; /* Return... */
+ }
+
+ for(cvi = 0; cvi < kVmmMaxContexts; cvi++) { /* Search slots */
+ if((0x80000000 & vmmask) && (CTable->vmmc[cvi].vmmFlags & vmmInUse)) { /* See if we need to stop and if it is in use */
+ hw_atomic_or(&CTable->vmmc[cvi].vmmFlags, vmmXStop); /* Set this one to stop */
+ }
+ vmmask = vmmask << 1; /* Slide mask over */
+ }
+
+ if(hw_compare_and_store(0, 1, &act->mact.emPendRupts)) { /* See if there is already a stop pending and lock out others if not */
+ act_unlock_thread(act); /* Already one pending, unlock the activation */
+ ml_set_interrupts_enabled(FALSE); /* Set back interruptions */
+ save->save_r3 = KERN_SUCCESS; /* Say we did it... */
+ return 1; /* Leave */
+ }
+
+ if(!(stopapc = (ReturnHandler *)kalloc(sizeof(ReturnHandler)))) { /* Get a return handler control block */
+ act->mact.emPendRupts = 0; /* No memory, say we have given up request */
+ act_unlock_thread(act); /* Unlock the activation */
+ ml_set_interrupts_enabled(FALSE); /* Set back interruptions */
+ save->save_r3 = KERN_RESOURCE_SHORTAGE; /* No storage... */
+ return 1; /* Return... */
+ }
+
+ ml_set_interrupts_enabled(FALSE); /* Disable interruptions for now */
+
+ stopapc->handler = vmm_interrupt; /* Set interruption routine */
+
+ stopapc->next = act->handlers; /* Put our interrupt at the start of the list */
+ act->handlers = stopapc; /* Point to us */
+
+ act_set_apc(act); /* Set an APC AST */
+ ml_set_interrupts_enabled(TRUE); /* Enable interruptions now */
+
+ act_unlock_thread(act); /* Unlock the activation */
+
+ ml_set_interrupts_enabled(FALSE); /* Set back interruptions */
+ save->save_r3 = KERN_SUCCESS; /* Hip, hip, horay... */
+ return 1;
+}
+
+/*-----------------------------------------------------------------------
+** vmm_interrupt
+**
+** This function is executed asynchronously from an APC AST.
+** It is to be used for anything that needs to interrupt a running VM.
+** This include any kind of interruption generation (other than timer pop)
+** or entering the stopped state.
+**
+** Inputs:
+** ReturnHandler *rh - the return handler control block as required by the APC.
+** thread_act_t act - the activation
+**
+** Outputs:
+** Whatever needed to be done is done.
+-----------------------------------------------------------------------*/
+
+void vmm_interrupt(ReturnHandler *rh, thread_act_t act) {
+
+ vmmCntrlTable *CTable;
+ savearea *sv;
+ boolean_t inter;
+
+
+
+ kfree((vm_offset_t)rh, sizeof(ReturnHandler)); /* Release the return handler block */
+
+ inter = ml_set_interrupts_enabled(FALSE); /* Disable interruptions for now */
+
+ act->mact.emPendRupts = 0; /* Say that there are no more interrupts pending */
+ CTable = act->mact.vmmControl; /* Get the pointer to the table */
+
+ if(!((unsigned int)CTable & -2)) return; /* Leave if we aren't doing VMs any more... */
+
+ if(act->mact.vmmCEntry && (act->mact.vmmCEntry->vmmFlags & vmmXStop)) { /* Do we need to stop the running guy? */
+ sv = find_user_regs(act); /* Get the user state registers */
+ if(!sv) { /* Did we find something? */
+ panic("vmm_interrupt: no user context; act = %08X\n", act);
}
+ sv->save_exception = kVmmStopped*4; /* Set a "stopped" exception */
+ vmm_force_exit(act, sv); /* Intercept a running VM */
}
+ ml_set_interrupts_enabled(inter); /* Put interrupts back to what they were */
return;
}
projects / apple / xnu.git / blobdiff