/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_LICENSE_OSREFERENCE_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.
- *
- * This 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.
- *
- * @APPLE_LICENSE_HEADER_END@
+ * 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. The rights granted to you under the
+ * License may not be used to create, or enable the creation or
+ * redistribution of, unlawful or unlicensed copies of an Apple operating
+ * system, or to circumvent, violate, or enable the circumvention or
+ * violation of, any terms of an Apple operating system software license
+ * agreement.
+ *
+ * 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, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
*/
/*-----------------------------------------------------------------------
** vmachmon.c
#include <mach/kern_return.h>
#include <mach/host_info.h>
#include <kern/kern_types.h>
+#include <kern/kalloc.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/thread.h>
#include <vm/vm_kern.h>
+#include <vm/vm_fault.h>
#include <ppc/vmachmon.h>
+#include <ppc/lowglobals.h>
-extern struct Saveanchor saveanchor; /* Aligned savearea anchor */
extern double FloatInit;
extern unsigned long QNaNbarbarian[4];
** address of a vmmCntrlEntry or 0 if not found
-----------------------------------------------------------------------*/
-vmmCntrlEntry *vmm_get_entry(
- thread_act_t act,
+static vmmCntrlEntry *vmm_get_entry(
+ thread_t act,
vmm_thread_index_t index)
{
vmmCntrlTable *CTable;
index = index & vmmTInum; /* Clean up the index */
- if (act->mact.vmmControl == 0) return NULL; /* No control table means no vmm */
+ if (act->machine.vmmControl == 0) return NULL; /* No control table means no vmm */
if ((index - 1) >= kVmmMaxContexts) return NULL; /* Index not in range */
- CTable = act->mact.vmmControl; /* Make the address a bit more convienient */
+ CTable = act->machine.vmmControl; /* Make the address a bit more convienient */
CEntry = &CTable->vmmc[index - 1]; /* Point to the entry */
if (!(CEntry->vmmFlags & vmmInUse)) return NULL; /* See if the slot is actually in use */
** 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)
+static pmap_t vmm_get_adsp(thread_t act, vmm_thread_index_t index)
{
pmap_t pmap;
- if (act->mact.vmmControl == 0) return NULL; /* No control table means no vmm */
+ if (act->machine.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 = act->machine.vmmControl->vmmAdsp[index - 1]; /* Get the pmap */
+ return (pmap); /* and return 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... */
+/*-----------------------------------------------------------------------
+** vmm_build_shadow_hash
+**
+** Allocate and initialize a shadow hash table.
+**
+** This function assumes that PAGE_SIZE is 4k-bytes.
+**
+-----------------------------------------------------------------------*/
+static pmap_vmm_ext *vmm_build_shadow_hash(pmap_t pmap)
+{
+ pmap_vmm_ext *ext; /* VMM pmap extension we're building */
+ ppnum_t extPP; /* VMM pmap extension physical page number */
+ kern_return_t ret; /* Return code from various calls */
+ uint32_t pages = GV_HPAGES; /* Number of pages in the hash table */
+ vm_offset_t free = VMX_HPIDX_OFFSET; /* Offset into extension page of free area (128-byte aligned) */
+ uint32_t freeSize = PAGE_SIZE - free; /* Number of free bytes in the extension page */
+
+ if ((pages * sizeof(addr64_t)) + (pages * sizeof(vm_offset_t)) > freeSize) {
+ panic("vmm_build_shadow_hash: too little pmap_vmm_ext free space\n");
+ }
+
+ ret = kmem_alloc_wired(kernel_map, (vm_offset_t *)&ext, PAGE_SIZE);
+ /* Allocate a page-sized extension block */
+ if (ret != KERN_SUCCESS) return (NULL); /* Return NULL for failed allocate */
+ bzero((char *)ext, PAGE_SIZE); /* Zero the entire extension block page */
+
+ extPP = pmap_find_phys(kernel_pmap, (vm_offset_t)ext);
+ /* Get extension block's physical page number */
+ if (!extPP) { /* This should not fail, but then again... */
+ panic("vmm_build_shadow_hash: could not translate pmap_vmm_ext vaddr %08X\n", ext);
+ }
+
+ ext->vmxSalt = (addr64_t)(vm_offset_t)ext ^ ptoa_64(extPP);
+ /* Set effective<->physical conversion salt */
+ ext->vmxHostPmapPhys = (addr64_t)(vm_offset_t)pmap ^ pmap->pmapvr;
+ /* Set host pmap's physical address */
+ ext->vmxHostPmap = pmap; /* Set host pmap's effective address */
+ ext->vmxHashPgIdx = (addr64_t *)((vm_offset_t)ext + VMX_HPIDX_OFFSET);
+ /* Allocate physical index */
+ ext->vmxHashPgList = (vm_offset_t *)((vm_offset_t)ext + VMX_HPLIST_OFFSET);
+ /* Allocate page list */
+ ext->vmxActiveBitmap = (vm_offset_t *)((vm_offset_t)ext + VMX_ACTMAP_OFFSET);
+ /* Allocate active mapping bitmap */
+
+ /* The hash table is typically larger than a single page, but we don't require it to be in a
+ contiguous virtual or physical chunk. So, we allocate it page by page, noting the effective and
+ physical address of each page in vmxHashPgList and vmxHashPgIdx, respectively. */
+ uint32_t idx;
+ for (idx = 0; idx < pages; idx++) {
+ ret = kmem_alloc_wired(kernel_map, &ext->vmxHashPgList[idx], PAGE_SIZE);
+ /* Allocate a hash-table page */
+ if (ret != KERN_SUCCESS) goto fail; /* Allocation failed, exit through cleanup */
+ bzero((char *)ext->vmxHashPgList[idx], PAGE_SIZE); /* Zero the page */
+ ext->vmxHashPgIdx[idx] = ptoa_64(pmap_find_phys(kernel_pmap, (addr64_t)ext->vmxHashPgList[idx]));
+ /* Put page's physical address into index */
+ if (!ext->vmxHashPgIdx[idx]) { /* Hash-table page's LRA failed */
+ panic("vmm_build_shadow_hash: could not translate hash-table vaddr %08X\n", ext->vmxHashPgList[idx]);
+ }
+ mapping_t *map = (mapping_t *)ext->vmxHashPgList[idx];
+ uint32_t mapIdx;
+ for (mapIdx = 0; mapIdx < GV_SLTS_PPG; mapIdx++) { /* Iterate over mappings in this page */
+ map->mpFlags = (mpGuest | mpgFree); /* Mark guest type and free */
+ map = (mapping_t *)((char *)map + GV_SLOT_SZ); /* Next slot-sized mapping */
+ }
+ }
+
+ return (ext); /* Return newly-minted VMM pmap extension */
+
+fail:
+ for (idx = 0; idx < pages; idx++) { /* De-allocate any pages we managed to allocate */
+ if (ext->vmxHashPgList[idx]) {
+ kmem_free(kernel_map, ext->vmxHashPgList[idx], PAGE_SIZE);
+ }
+ }
+ kmem_free(kernel_map, (vm_offset_t)ext, PAGE_SIZE); /* Release the VMM pmap extension page */
+ return (NULL); /* Return NULL for failure */
+}
+
+
+/*-----------------------------------------------------------------------
+** vmm_release_shadow_hash
+**
+** Release shadow hash table and VMM extension block
+**
+-----------------------------------------------------------------------*/
+static void vmm_release_shadow_hash(pmap_vmm_ext *ext)
+{
+ uint32_t idx;
+
+ for (idx = 0; idx < GV_HPAGES; idx++) { /* Release the hash table page by page */
+ kmem_free(kernel_map, ext->vmxHashPgList[idx], PAGE_SIZE);
+ }
+
+ kmem_free(kernel_map, (vm_offset_t)ext, PAGE_SIZE); /* Release the VMM pmap extension page */
+}
+
+/*-----------------------------------------------------------------------
+** vmm_activate_gsa
+**
+** Activate guest shadow assist
+**
+-----------------------------------------------------------------------*/
+static kern_return_t vmm_activate_gsa(
+ thread_t act,
+ vmm_thread_index_t index)
+{
+ vmmCntrlTable *CTable = act->machine.vmmControl; /* Get VMM control table */
+ if (!CTable) { /* Caller guarantees that this will work */
+ panic("vmm_activate_gsa: VMM control table not present; act = %08X, idx = %d\n",
+ act, index);
+ return KERN_FAILURE;
+ }
+ vmmCntrlEntry *CEntry = vmm_get_entry(act, index); /* Get context from index */
+ if (!CEntry) { /* Caller guarantees that this will work */
+ panic("vmm_activate_gsa: Unexpected failure of vmm_get_entry; act = %08X, idx = %d\n",
+ act, index);
+ return KERN_FAILURE;
+ }
+
+ pmap_t hpmap = act->map->pmap; /* Get host pmap */
+ pmap_t gpmap = vmm_get_adsp(act, index); /* Get guest pmap */
+ if (!gpmap) { /* Caller guarantees that this will work */
+ panic("vmm_activate_gsa: Unexpected failure of vmm_get_adsp; act = %08X, idx = %d\n",
+ act, index);
+ return KERN_FAILURE;
+ }
+
+ if (!hpmap->pmapVmmExt) { /* If there's no VMM extension for this host, create one */
+ hpmap->pmapVmmExt = vmm_build_shadow_hash(hpmap); /* Build VMM extension plus shadow hash and attach */
+ if (hpmap->pmapVmmExt) { /* See if we succeeded */
+ hpmap->pmapVmmExtPhys = (addr64_t)(vm_offset_t)hpmap->pmapVmmExt ^ hpmap->pmapVmmExt->vmxSalt;
+ /* Get VMM extensions block physical address */
+ } else {
+ return KERN_RESOURCE_SHORTAGE; /* Not enough mojo to go */
+ }
+ }
+ gpmap->pmapVmmExt = hpmap->pmapVmmExt; /* Copy VMM extension block virtual address into guest */
+ gpmap->pmapVmmExtPhys = hpmap->pmapVmmExtPhys; /* and its physical address, too */
+ gpmap->pmapFlags |= pmapVMgsaa; /* Enable GSA for this guest */
+ CEntry->vmmXAFlgs |= vmmGSA; /* Show GSA active here, too */
+
+ return KERN_SUCCESS;
+}
+
+
+/*-----------------------------------------------------------------------
+** vmm_deactivate_gsa
+**
+** Deactivate guest shadow assist
+**
+-----------------------------------------------------------------------*/
+static void vmm_deactivate_gsa(
+ thread_t act,
+ vmm_thread_index_t index)
+{
+ vmmCntrlEntry *CEntry = vmm_get_entry(act, index); /* Get context from index */
+ if (!CEntry) { /* Caller guarantees that this will work */
+ panic("vmm_deactivate_gsa: Unexpected failure of vmm_get_entry; act = %08X, idx = %d\n",
+ act, index);
+ return KERN_FAILURE;
+ }
+
+ pmap_t gpmap = vmm_get_adsp(act, index); /* Get guest pmap */
+ if (!gpmap) { /* Caller guarantees that this will work */
+ panic("vmm_deactivate_gsa: Unexpected failure of vmm_get_adsp; act = %08X, idx = %d\n",
+ act, index);
+ return KERN_FAILURE;
+ }
+
+ gpmap->pmapFlags &= ~pmapVMgsaa; /* Deactivate GSA for this guest */
+ CEntry->vmmXAFlgs &= ~vmmGSA; /* Show GSA deactivated here, too */
}
+/*-----------------------------------------------------------------------
+** vmm_flush_context
+**
+** Flush specified guest context, purging all guest mappings and clearing
+** the context page.
+**
+-----------------------------------------------------------------------*/
+static void vmm_flush_context(
+ thread_t act,
+ vmm_thread_index_t index)
+{
+ vmmCntrlEntry *CEntry;
+ vmmCntrlTable *CTable;
+ vmm_state_page_t *vks;
+ vmm_version_t version;
+
+ CEntry = vmm_get_entry(act, index); /* Convert index to entry */
+ if (!CEntry) { /* Caller guarantees that this will work */
+ panic("vmm_flush_context: Unexpected failure of vmm_get_entry; act = %08X, idx = %d\n",
+ act, index);
+ return;
+ }
+
+ 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 */
+ }
+
+ vmm_unmap_all_pages(act, index); /* Blow away all mappings for this context */
+
+ CTable = act->machine.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->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 */
+
+ return; /* Context is now flushed */
+}
+
/*************************************************************************************
Virtual Machine Monitor Exported Functionality
int vmm_get_features(struct savearea *save)
{
save->save_r3 = kVmmCurrentFeatures; /* Return the features */
- if(per_proc_info->pf.Available & pf64Bit) {
+ if(getPerProc()->pf.Available & pf64Bit) {
save->save_r3 &= ~kVmmFeature_LittleEndian; /* No little endian here */
save->save_r3 |= kVmmFeature_SixtyFourBit; /* Set that we can do 64-bit */
}
** Returns max address
-----------------------------------------------------------------------*/
-addr64_t vmm_max_addr(thread_act_t act)
+addr64_t vmm_max_addr(thread_t act)
{
return vm_max_address; /* Return the maximum address */
}
-----------------------------------------------------------------------*/
unsigned int vmm_get_XA(
- thread_act_t act,
+ thread_t act,
vmm_thread_index_t index)
{
vmmCntrlEntry *CEntry;
int vmm_init_context(struct savearea *save)
{
- thread_act_t act;
+ thread_t act;
vmm_version_t version;
vmm_state_page_t * vmm_user_state;
vmmCntrlTable *CTable;
vmm_state_page_t * vks;
ppnum_t conphys;
kern_return_t ret;
- pmap_t new_pmap;
int cvi, i;
task_t task;
- thread_act_t fact, gact;
+ thread_t fact, gact;
vmm_user_state = CAST_DOWN(vmm_state_page_t *, save->save_r4); /* Get the user address of the comm area */
if ((unsigned int)vmm_user_state & (PAGE_SIZE - 1)) { /* Make sure the comm area is page aligned */
return 1;
}
- act = current_act(); /* Pick up our activation */
+ act = current_thread(); /* Pick up our activation */
ml_set_interrupts_enabled(TRUE); /* This can take a bit of time so pass interruptions */
task_lock(task); /* Lock our task */
- fact = (thread_act_t)task->threads.next; /* Get the first activation on task */
+ fact = (thread_t)task->threads.next; /* Get the first activation on task */
gact = 0; /* Pretend we didn't find it yet */
for(i = 0; i < task->thread_count; i++) { /* All of the activations */
- if(fact->mact.vmmControl) { /* Is this a virtual machine monitor? */
+ if(fact->machine.vmmControl) { /* Is this a virtual machine monitor? */
gact = fact; /* Yeah... */
break; /* Bail the loop... */
}
- fact = (thread_act_t)fact->task_threads.next; /* Go to the next one */
+ fact = (thread_t)fact->task_threads.next; /* Go to the next one */
}
return 1;
}
- if(!gact) act->mact.vmmControl = (vmmCntrlTable *)1; /* Temporarily mark that we are the vmm thread */
+ if(!gact) act->machine.vmmControl = (vmmCntrlTable *)1; /* Temporarily mark that we are the vmm thread */
task_unlock(task); /* Safe to release now (because we've marked ourselves) */
- CTable = act->mact.vmmControl; /* Get the control table address */
+ CTable = act->machine.vmmControl; /* Get the control table address */
if ((unsigned int)CTable == 1) { /* If we are marked, try to allocate a new table, otherwise we have one */
if(!(CTable = (vmmCntrlTable *)kalloc(sizeof(vmmCntrlTable)))) { /* Get a fresh emulation control table */
- act->mact.vmmControl = 0; /* Unmark us as vmm 'cause we failed */
+ act->machine.vmmControl = 0; /* Unmark us as vmm 'cause we failed */
ml_set_interrupts_enabled(FALSE); /* Set back interruptions */
save->save_r3 = KERN_RESOURCE_SHORTAGE; /* No storage... */
return 1;
}
bzero((void *)CTable, sizeof(vmmCntrlTable)); /* Clean it up */
- act->mact.vmmControl = CTable; /* Initialize the table anchor */
+ act->machine.vmmControl = CTable; /* Initialize the table anchor */
}
for(cvi = 0; cvi < kVmmMaxContexts; cvi++) { /* Search to find a free slot */
CTable->vmmc[cvi].vmmFlags = vmmInUse; /* Mark the slot in use and make sure the rest are clear */
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].vmmContextPhys = conphys; /* Remember the state page physical addr */
CTable->vmmc[cvi].vmmContextUser = vmm_user_state; /* Remember user address of comm area */
CTable->vmmc[cvi].vmmFacCtx.FPUsave = 0; /* Clear facility context control */
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));
+ pmap_t hpmap = act->map->pmap; /* Get host pmap */
+ pmap_t gpmap = pmap_create(0); /* Make a fresh guest pmap */
+ if (gpmap) { /* Did we succeed ? */
+ CTable->vmmAdsp[cvi] = gpmap; /* Remember guest pmap for new context */
+ if (lowGlo.lgVMMforcedFeats & vmmGSA) { /* Forcing on guest shadow assist ? */
+ vmm_activate_gsa(act, cvi+1); /* Activate GSA */
+ }
+ } else {
+ ret = KERN_RESOURCE_SHORTAGE; /* We've failed to allocate a guest pmap */
+ goto return_in_shame; /* Shame on us. */
+ }
+
+ if (!(hpmap->pmapFlags & pmapVMhost)) { /* Do this stuff if this is our first time hosting */
+ hpmap->pmapFlags |= pmapVMhost; /* We're now hosting */
}
ml_set_interrupts_enabled(FALSE); /* Set back interruptions */
return 1;
return_in_shame:
- if(!gact) kfree((vm_offset_t)CTable, sizeof(vmmCntrlTable)); /* Toss the table if we just allocated it */
- act->mact.vmmControl = 0; /* Unmark us as vmm 'cause we failed */
+ if(!gact) kfree(CTable, sizeof(vmmCntrlTable)); /* Toss the table if we just allocated it */
+ act->machine.vmmControl = 0; /* Unmark us as vmm 'cause we failed */
ml_set_interrupts_enabled(FALSE); /* Set back interruptions */
save->save_r3 = ret; /* Pass back return code... */
return 1;
-----------------------------------------------------------------------*/
kern_return_t vmm_tear_down_context(
- thread_act_t act,
+ thread_t act,
vmm_thread_index_t index)
{
vmmCntrlEntry *CEntry;
int cvi;
register savearea *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 */
+ 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 */
- ml_set_interrupts_enabled(TRUE); /* This can take a bit of time so pass interruptions */
+ ml_set_interrupts_enabled(TRUE); /* This can take a bit of time so pass interruptions */
hw_atomic_sub((int *)&saveanchor.savetarget, 2); /* We don't need these extra saveareas anymore */
- if(CEntry->vmmFacCtx.FPUsave) { /* Is there any floating point context? */
- toss_live_fpu(&CEntry->vmmFacCtx); /* Get rid of any live context here */
+ 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 */
+ 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 */
}
- 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 */
+ CEntry->vmmPmap = 0; /* Remove this trace */
+ pmap_t gpmap = act->machine.vmmControl->vmmAdsp[index - 1];
+ /* Get context's guest pmap (if any) */
+ if (gpmap) { /* Check if there is an address space assigned here */
+ if (gpmap->pmapFlags & pmapVMgsaa) { /* Handle guest shadow assist case specially */
+ hw_rem_all_gv(gpmap); /* Remove all guest mappings from shadow hash table */
+ } else {
+ mapping_remove(gpmap, 0xFFFFFFFFFFFFF000LL);/* Remove final page explicitly because we might have mapped it */
+ pmap_remove(gpmap, 0, 0xFFFFFFFFFFFFF000LL);/* Remove all entries from this map */
+ }
+ pmap_destroy(gpmap); /* Toss the pmap for this context */
+ act->machine.vmmControl->vmmAdsp[index - 1] = NULL; /* Clean it up */
}
(void) vm_map_unwire( /* Unwire the user comm page */
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 = act->machine.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 */
*/
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 */
- }
+ if(!act->machine.vmmControl->vmmAdsp[index - 1]) continue; /* Nothing to remove here */
+ mapping_remove(act->machine.vmmControl->vmmAdsp[index - 1], 0xFFFFFFFFFFFFF000LL); /* Remove final page explicitly because we might have mapped it */
+ pmap_remove(act->machine.vmmControl->vmmAdsp[index - 1], 0, 0xFFFFFFFFFFFFF000LL); /* Remove all entries from this map */
+ pmap_destroy(act->machine.vmmControl->vmmAdsp[index - 1]); /* Toss the pmap for this context */
+ act->machine.vmmControl->vmmAdsp[index - 1] = 0; /* Clear just in case */
+ }
+
+ pmap_t pmap = act->map->pmap; /* Get our pmap */
+ if (pmap->pmapVmmExt) { /* Release any VMM pmap extension block and shadow hash table */
+ vmm_release_shadow_hash(pmap->pmapVmmExt); /* Release extension block and shadow hash table */
+ pmap->pmapVmmExt = 0; /* Forget extension block */
+ pmap->pmapVmmExtPhys = 0; /* Forget extension block's physical address, too */
+ }
+ pmap->pmapFlags &= ~pmapVMhost; /* We're no longer hosting */
- kfree((vm_offset_t)CTable, sizeof(vmmCntrlTable)); /* Toss the table because to tossed the last context */
- act->mact.vmmControl = 0; /* Unmark us as vmm */
+ kfree(CTable, sizeof(vmmCntrlTable)); /* Toss the table because to tossed the last context */
+ act->machine.vmmControl = 0; /* Unmark us as vmm */
ml_set_interrupts_enabled(FALSE); /* No more interruptions */
/*-----------------------------------------------------------------------
-** vmm_set_XA
+** vmm_activate_XA
**
-** This function sets the eXtended Architecture flags for the specifed VM.
+** This function activates 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
** 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,
+kern_return_t vmm_activate_XA(
+ thread_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 */
+ kern_return_t result = KERN_SUCCESS; /* Assume success */
+ if ((xaflags & ~kVmmSupportedSetXA) || ((xaflags & vmm64Bit) && (!getPerProc()->pf.Available & pf64Bit)))
+ return (KERN_FAILURE); /* Unknown or unsupported feature requested */
+
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 */
- }
+ vmm_flush_context(act, index); /* Flush the context */
- 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 */
+ if (xaflags & vmm64Bit) { /* Activating 64-bit mode ? */
+ CEntry->vmmXAFlgs |= vmm64Bit; /* Activate 64-bit mode */
}
-
- 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 */
+ if (xaflags & vmmGSA) { /* Activating guest shadow assist ? */
+ result = vmm_activate_gsa(act, index); /* Activate guest shadow assist */
+ }
- vks = CEntry->vmmContextKern; /* Get address of the context page */
- version = vks->interface_version; /* Save the version code */
- bzero((char *)vks, 4096); /* Clear all */
+ ml_set_interrupts_enabled(FALSE); /* No more interruptions */
+
+ return result; /* Return activate result */
+}
- vks->interface_version = version; /* Set our version code */
- vks->thread_index = index % vmmTInum; /* Tell the user the index for this virtual machine */
+/*-----------------------------------------------------------------------
+** vmm_deactivate_XA
+**
+-----------------------------------------------------------------------*/
+kern_return_t vmm_deactivate_XA(
+ thread_t act,
+ vmm_thread_index_t index,
+ unsigned int xaflags)
+{
+ vmmCntrlEntry *CEntry;
+ kern_return_t result = KERN_SUCCESS; /* Assume success */
+
+ if ((xaflags & ~kVmmSupportedSetXA) || ((xaflags & vmm64Bit) && (getPerProc()->pf.Available & pf64Bit)))
+ return (KERN_FAILURE); /* Unknown or unsupported feature requested */
+
+ 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 */
+
+ vmm_flush_context(act, index); /* Flush the context */
+
+ if (xaflags & vmm64Bit) { /* Deactivating 64-bit mode ? */
+ CEntry->vmmXAFlgs &= ~vmm64Bit; /* Deactivate 64-bit mode */
+ }
+
+ if (xaflags & vmmGSA) { /* Deactivating guest shadow assist ? */
+ vmm_deactivate_gsa(act, index); /* Deactivate guest shadow assist */
+ }
ml_set_interrupts_enabled(FALSE); /* No more interruptions */
- return KERN_SUCCESS; /* Return the flags */
+ return result; /* Return deactivate result */
}
** Outputs:
** All vmm contexts released and VMM shut down
-----------------------------------------------------------------------*/
-void vmm_tear_down_all(thread_act_t act) {
+void vmm_tear_down_all(thread_t act) {
vmmCntrlTable *CTable;
int cvi;
savearea *save;
spl_t s;
- if(act->mact.specFlags & runningVM) { /* Are we actually in a context right now? */
+ if(act->machine.specFlags & runningVM) { /* Are we actually in a context right now? */
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");
splx(s); /* Restore interrupts */
}
- if(CTable = act->mact.vmmControl) { /* Do we have a vmm control block? */
+ if(CTable = act->machine.vmmControl) { /* Do we have a vmm control block? */
for(cvi = 1; cvi <= kVmmMaxContexts; cvi++) { /* Look at all slots */
/*
* Note that all address apces should be gone here.
*/
- if(act->mact.vmmControl) { /* Did we find one? */
+ if(act->machine.vmmControl) { /* Did we find one? */
panic("vmm_tear_down_all: control table did not get deallocated\n"); /* Table did not go away */
}
}
-----------------------------------------------------------------------*/
kern_return_t vmm_map_page(
- thread_act_t act,
+ thread_t act,
vmm_adsp_id_t index,
addr64_t cva,
addr64_t ava,
vm_prot_t prot)
{
kern_return_t ret;
- vmmCntrlEntry *CEntry;
- register mapping *mp;
- struct phys_entry *pp;
+ register mapping_t *mp;
vm_map_t map;
addr64_t ova, nextva;
pmap_t pmap;
- pmap = vmm_get_adsp(act, index); /* Get the pmap for this address space */
+ pmap = vmm_get_adsp(act, index); /* Get the guest 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? */
- map = current_act()->map; /* Get the current map */
-
- while(1) { /* Keep trying until we get it or until we fail */
+ map = current_thread()->map; /* Get the host's map */
- mp = mapping_find(map->pmap, cva, &nextva, 0); /* Find the mapping for this address */
+ if (pmap->pmapFlags & pmapVMgsaa) { /* Guest shadow assist active ? */
+ ret = hw_res_map_gv(map->pmap, pmap, cva, ava, getProtPPC(prot));
+ /* Attempt to resume an existing gv->phys mapping */
+ if (mapRtOK != ret) { /* Nothing to resume, construct a new mapping */
+
+ while (1) { /* Find host mapping or fail */
+ mp = mapping_find(map->pmap, cva, &nextva, 0);
+ /* Attempt to find host mapping and pin it */
+ if (mp) break; /* Got it */
+
+ ml_set_interrupts_enabled(TRUE);
+ /* Open 'rupt window */
+ ret = vm_fault(map, /* Didn't find it, try to fault in host page read/write */
+ vm_map_trunc_page(cva),
+ VM_PROT_READ | VM_PROT_WRITE,
+ FALSE, /* change wiring */
+ THREAD_UNINT,
+ NULL,
+ 0);
+ ml_set_interrupts_enabled(FALSE);
+ /* Close 'rupt window */
+ if (ret != KERN_SUCCESS)
+ return KERN_FAILURE; /* Fault failed, return failure */
+ }
+
+ if (mpNormal != (mp->mpFlags & mpType)) {
+ /* Host mapping must be a vanilla page */
+ mapping_drop_busy(mp); /* Un-pin host mapping */
+ return KERN_FAILURE; /* Return failure */
+ }
+
+ /* Partially construct gv->phys mapping */
+ unsigned int pindex;
+ phys_entry_t *physent = mapping_phys_lookup(mp->mpPAddr, &pindex);
+ if (!physent) {
+ mapping_drop_busy(mp);
+ return KERN_FAILURE;
+ }
+ unsigned int pattr = ((physent->ppLink & (ppI | ppG)) >> 60);
+ unsigned int wimg = 0x2;
+ if (pattr & mmFlgCInhib) wimg |= 0x4;
+ if (pattr & mmFlgGuarded) wimg |= 0x1;
+ unsigned int mflags = (pindex << 16) | mpGuest;
+ addr64_t gva = ((ava & ~mpHWFlags) | (wimg << 3) | getProtPPC(prot));
+
+ hw_add_map_gv(map->pmap, pmap, gva, mflags, mp->mpPAddr);
+ /* Construct new guest->phys mapping */
+
+ mapping_drop_busy(mp); /* Un-pin host mapping */
+ }
+ } else {
+ while(1) { /* Keep trying until we get it or until we fail */
+
+ mp = mapping_find(map->pmap, cva, &nextva, 0); /* Find the mapping for this address */
+
+ if(mp) break; /* We found it */
+
+ ml_set_interrupts_enabled(TRUE); /* Enable interruptions */
+ ret = vm_fault(map, /* Didn't find it, try to fault it in read/write... */
+ vm_map_trunc_page(cva),
+ VM_PROT_READ | VM_PROT_WRITE,
+ FALSE, /*change wiring */
+ THREAD_UNINT,
+ NULL,
+ 0);
+ ml_set_interrupts_enabled(FALSE); /* Disable interruptions */
+ if (ret != KERN_SUCCESS) return KERN_FAILURE; /* There isn't a page there, return... */
+ }
+
+ if((mp->mpFlags & mpType) != mpNormal) { /* 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 */
+ }
- if(mp) break; /* We found it */
-
- ml_set_interrupts_enabled(TRUE); /* Enable interruptions */
- 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(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 */
+ }
- 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 */
+ mapping_drop_busy(mp); /* We have everything we need from the mapping */
}
- mapping_drop_busy(mp); /* We have everything we need from the mapping */
-
- 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 */
+ if (!((getPerProc()->spcFlags) & FamVMmode)) {
+ act->machine.vmmControl->vmmLastMap = ava & 0xFFFFFFFFFFFFF000ULL; /* Remember the last mapping we made */
+ act->machine.vmmControl->vmmGFlags = (act->machine.vmmControl->vmmGFlags & ~vmmLastAdSp) | index; /* Remember last address space */
}
return KERN_SUCCESS;
-----------------------------------------------------------------------*/
vmm_return_code_t vmm_map_execute(
- thread_act_t act,
+ thread_t act,
vmm_thread_index_t index,
addr64_t cva,
addr64_t ava,
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))
+ if (((getPerProc()->spcFlags) & FamVMmode) && (CEntry != act->machine.vmmCEntry))
return kVmmBogusContext; /* Yes, invalid index in Fam */
adsp = (index >> 8) & 0xFF; /* Get any requested address space */
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 */
+ act->machine.vmmControl->vmmLastMap = ava & 0xFFFFFFFFFFFFF000ULL; /* Remember the last mapping we made */
+ act->machine.vmmControl->vmmGFlags = (act->machine.vmmControl->vmmGFlags & ~vmmLastAdSp) | cndx; /* Remember last address space */
vmm_execute_vm(act, cndx); /* Return was ok, launch the VM */
}
-----------------------------------------------------------------------*/
kern_return_t vmm_map_list(
- thread_act_t act,
+ thread_t act,
vmm_adsp_id_t index,
unsigned int cnt,
unsigned int flavor)
/*-----------------------------------------------------------------------
** vmm_get_page_mapping
**
-** This function determines whether the specified VMM
-** virtual address is mapped.
+** Given a context index and a guest virtual address, convert the address
+** to its corresponding host virtual address.
**
** Inputs:
** act - pointer to current thread activation
-** index - index of vmm state for this page
-** va - virtual address within the alternate's address
-** space
+** index - context index
+** gva - guest virtual address
**
** Outputs:
-** Non-alternate's virtual address (page aligned) or -1 if not mapped or any failure
+** Host virtual address (page aligned) or -1 if not mapped or any failure
**
** Note:
-** If there are aliases to the page in the non-alternate address space,
-** this call could return the wrong one. Moral of the story: no aliases.
+** If the host address space contains multiple virtual addresses mapping
+** to the physical address corresponding to the specified guest virtual
+** address (i.e., host virtual aliases), it is unpredictable which host
+** virtual address (alias) will be returned. Moral of the story: No host
+** virtual aliases.
-----------------------------------------------------------------------*/
addr64_t vmm_get_page_mapping(
- thread_act_t act,
+ thread_t act,
vmm_adsp_id_t index,
- addr64_t va)
+ addr64_t gva)
{
- vmmCntrlEntry *CEntry;
- register mapping *mp;
+ register mapping_t *mp;
pmap_t pmap;
- addr64_t nextva, sva;
+ addr64_t nextva, hva;
ppnum_t pa;
- pmap = vmm_get_adsp(act, index); /* Get and validate the index */
- if (!pmap)return -1; /* No good, failure... */
-
- mp = mapping_find(pmap, va, &nextva, 0); /* Find our page */
+ pmap = vmm_get_adsp(act, index); /* Get and validate the index */
+ if (!pmap)return -1; /* No good, failure... */
+
+ if (pmap->pmapFlags & pmapVMgsaa) { /* Guest shadow assist (GSA) active ? */
+ return (hw_gva_to_hva(pmap, gva)); /* Convert guest to host virtual address */
+ } else {
+ mp = mapping_find(pmap, gva, &nextva, 0); /* Find guest mapping for this virtual address */
- if(!mp) return -1; /* Not mapped, return -1 */
+ if(!mp) return -1; /* Not mapped, return -1 */
- pa = mp->mpPAddr; /* Remember the page address */
+ pa = mp->mpPAddr; /* Remember the physical page address */
- mapping_drop_busy(mp); /* Go ahead and relase the mapping now */
+ mapping_drop_busy(mp); /* Go ahead and relase the mapping now */
- pmap = current_act()->map->pmap; /* Get the current pmap */
- sva = mapping_p2v(pmap, pa); /* Now find the source virtual */
+ pmap = current_thread()->map->pmap; /* Get the host pmap */
+ hva = mapping_p2v(pmap, pa); /* Now find the source virtual */
- if(sva != 0) return sva; /* We found it... */
+ if(hva != 0) return hva; /* We found 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 */
+ panic("vmm_get_page_mapping: could not back-map guest va (%016llX)\n", gva);
+ /* We are bad wrong if we can't find it */
- return -1;
+ return -1; /* Never executed, prevents compiler warning */
+ }
}
/*-----------------------------------------------------------------------
** vmm_unmap_page
**
-** This function unmaps a page from the alternate's logical
-** address space.
+** This function unmaps a page from the guest address space.
**
** Inputs:
** act - pointer to current thread activation
-----------------------------------------------------------------------*/
kern_return_t vmm_unmap_page(
- thread_act_t act,
+ thread_t act,
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... */
+ if (pmap->pmapFlags & pmapVMgsaa) { /* Handle guest shadow assist specially */
+ hw_susp_map_gv(act->map->pmap, pmap, va); /* Suspend the mapping */
+ return (KERN_SUCCESS); /* Always returns success */
+ } else {
+ nadd = mapping_remove(pmap, va); /* Toss the mapping */
+
+ return ((nadd & 1) ? KERN_FAILURE : KERN_SUCCESS); /* Return... */
+ }
}
/*-----------------------------------------------------------------------
-----------------------------------------------------------------------*/
kern_return_t vmm_unmap_list(
- thread_act_t act,
+ thread_t act,
vmm_adsp_id_t index,
unsigned int cnt,
unsigned int flavor)
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 */
+ pmap = act->machine.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 */
+ gva = gva &= 0xFFFFFFFFFFFFF000ULL; /* Clean up the address */
+ if (pmap->pmapFlags & pmapVMgsaa) { /* Handle guest shadow assist specially */
+ hw_susp_map_gv(act->map->pmap, pmap, gva);
+ /* Suspend the mapping */
+ } else {
+ (void)mapping_remove(pmap, gva); /* Toss the mapping */
+ }
}
return KERN_SUCCESS ; /* Return... */
-----------------------------------------------------------------------*/
void vmm_unmap_all_pages(
- thread_act_t act,
+ thread_t act,
vmm_adsp_id_t index)
{
vmmCntrlEntry *CEntry;
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(pmap, 0xFFFFFFFFFFFFF000LL); /* Remove final page explicitly because we might have mapped it */
- pmap_remove(pmap, 0, 0xFFFFFFFFFFFFF000LL); /* Remove all entries from this map */
+
+ if (pmap->pmapFlags & pmapVMgsaa) { /* Handle guest shadow assist specially */
+ hw_rem_all_gv(pmap); /* Remove all guest's mappings from shadow hash table */
+ } else {
+ /*
+ * Note: the pmap code won't deal with the last page in the address space, so handle it explicitly
+ */
+ 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,
+ thread_t act,
vmm_adsp_id_t index,
addr64_t va,
unsigned int reset)
{
vmmCntrlEntry *CEntry;
- register mapping *mpv, *mp;
+ register mapping_t *mpv, *mp;
unsigned int RC;
pmap_t pmap;
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 */
-
- RC = hw_test_rc(pmap, (addr64_t)va, reset); /* Fetch the RC bits and clear if requested */
+
+ if (pmap->pmapFlags & pmapVMgsaa) { /* Handle guest shadow assist specially */
+ RC = hw_test_rc_gv(act->map->pmap, pmap, va, reset);/* Fetch the RC bits and clear if requested */
+ } else {
+ RC = hw_test_rc(pmap, (addr64_t)va, reset); /* Fetch the RC bits and clear if requested */
+ }
switch (RC & mapRetCode) { /* Decode return code */
-----------------------------------------------------------------------*/
kern_return_t vmm_protect_page(
- thread_act_t act,
+ thread_t act,
vmm_adsp_id_t index,
addr64_t va,
vm_prot_t prot)
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 */
- ret = hw_protect(pmap, va, prot, &nextva); /* Try to change the protect here */
+ if (pmap->pmapFlags & pmapVMgsaa) { /* Handle guest shadow assist specially */
+ ret = hw_protect_gv(pmap, va, prot); /* Try to change protection, GSA varient */
+ } else {
+ ret = hw_protect(pmap, va, prot, &nextva); /* Try to change protection */
+ }
switch (ret) { /* Decode return code */
}
- 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 */
+ if (!((getPerProc()->spcFlags) & FamVMmode)) {
+ act->machine.vmmControl->vmmLastMap = va & 0xFFFFFFFFFFFFF000ULL; /* Remember the last mapping we made */
+ act->machine.vmmControl->vmmGFlags = (act->machine.vmmControl->vmmGFlags & ~vmmLastAdSp) | index; /* Remember last address space */
}
return KERN_SUCCESS; /* Return */
-----------------------------------------------------------------------*/
vmm_return_code_t vmm_protect_execute(
- thread_act_t act,
+ thread_t act,
vmm_thread_index_t index,
addr64_t va,
vm_prot_t prot)
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))
+ if (((getPerProc()->spcFlags) & FamVMmode) && (CEntry != act->machine.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 */
+ act->machine.vmmControl->vmmLastMap = va & 0xFFFFFFFFFFFFF000ULL; /* Remember the last mapping we made */
+ act->machine.vmmControl->vmmGFlags = (act->machine.vmmControl->vmmGFlags & ~vmmLastAdSp) | cndx; /* Remember last address space */
vmm_execute_vm(act, cndx); /* Return was ok, launch the VM */
}
-----------------------------------------------------------------------*/
kern_return_t vmm_get_float_state(
- thread_act_t act,
+ thread_t act,
vmm_thread_index_t index)
{
vmmCntrlEntry *CEntry;
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 */
+ act->machine.specFlags &= ~floatCng; /* Clear the special flag */
CEntry->vmmContextKern->vmmStat &= ~vmmFloatCngd; /* Clear the change indication */
fpu_save(&CEntry->vmmFacCtx); /* Save context if live */
-----------------------------------------------------------------------*/
kern_return_t vmm_get_vector_state(
- thread_act_t act,
+ thread_t act,
vmm_thread_index_t index)
{
vmmCntrlEntry *CEntry;
vec_save(&CEntry->vmmFacCtx); /* Save context if live */
- act->mact.specFlags &= ~vectorCng; /* Clear the special flag */
+ act->machine.specFlags &= ~vectorCng; /* Clear the special flag */
CEntry->vmmContextKern->vmmStat &= ~vmmVectCngd; /* Clear the change indication */
if(sv = CEntry->vmmFacCtx.VMXsave) { /* Is there context yet? */
-----------------------------------------------------------------------*/
kern_return_t vmm_set_timer(
- thread_act_t act,
+ thread_t act,
vmm_thread_index_t index,
unsigned int timerhi,
unsigned int timerlo)
-----------------------------------------------------------------------*/
kern_return_t vmm_get_timer(
- thread_act_t act,
+ thread_t act,
vmm_thread_index_t index)
{
vmmCntrlEntry *CEntry;
-----------------------------------------------------------------------*/
void vmm_timer_pop(
- thread_act_t act)
+ thread_t act)
{
vmmCntrlEntry *CEntry;
vmmCntrlTable *CTable;
uint64_t now, soonest;
savearea *sv;
- if(!((unsigned int)act->mact.vmmControl & 0xFFFFFFFE)) { /* Are there any virtual machines? */
+ if(!((unsigned int)act->machine.vmmControl & 0xFFFFFFFE)) { /* Are there any virtual machines? */
panic("vmm_timer_pop: No virtual machines defined; act = %08X\n", act);
}
clock_get_uptime(&now); /* What time is it? */
- CTable = act->mact.vmmControl; /* Make this easier */
+ CTable = act->machine.vmmControl; /* Make this easier */
any = 0; /* Haven't found a running unexpired timer yet */
for(cvi = 0; cvi < kVmmMaxContexts; cvi++) { /* Cycle through all and check time now */
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? */
+ if((unsigned int)&CTable->vmmc[cvi] == (unsigned int)act->machine.vmmCEntry) { /* Is this the running VM? */
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);
}
if(any) {
- if (act->mact.qactTimer == 0 || soonest <= act->mact.qactTimer)
- act->mact.qactTimer = soonest; /* Set lowest timer */
+ if (act->machine.qactTimer == 0 || soonest <= act->machine.qactTimer)
+ act->machine.qactTimer = soonest; /* Set lowest timer */
}
return;
int vmm_stop_vm(struct savearea *save)
{
- thread_act_t act;
+ thread_t act;
vmmCntrlTable *CTable;
int cvi, i;
task_t task;
- thread_act_t fact;
+ thread_t fact;
unsigned int vmmask;
ReturnHandler *stopapc;
task_lock(task); /* Lock our task */
- fact = (thread_act_t)task->threads.next; /* Get the first activation on task */
+ fact = (thread_t)task->threads.next; /* Get the first activation on task */
act = 0; /* Pretend we didn't find it yet */
for(i = 0; i < task->thread_count; i++) { /* All of the activations */
- if(fact->mact.vmmControl) { /* Is this a virtual machine monitor? */
+ if(fact->machine.vmmControl) { /* Is this a virtual machine monitor? */
act = fact; /* Yeah... */
break; /* Bail the loop... */
}
- fact = (thread_act_t)fact->task_threads.next; /* Go to the next one */
+ fact = (thread_t)fact->task_threads.next; /* Go to the next one */
}
if(!((unsigned int)act)) { /* See if we have VMMs yet */
return 0; /* Go generate a syscall exception */
}
- act_lock_thread(act); /* Make sure this stays 'round */
+ thread_reference(act);
+
task_unlock(task); /* Safe to release now */
- CTable = act->mact.vmmControl; /* Get the pointer to the table */
+ thread_mtx_lock(act);
+
+ CTable = act->machine.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 */
+ thread_mtx_unlock(act); /* Unlock the activation */
+ thread_deallocate(act);
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 */
+ thread_mtx_unlock(act); /* Unlock the activation */
+ thread_deallocate(act);
ml_set_interrupts_enabled(FALSE); /* Set back interruptions */
save->save_r3 = KERN_SUCCESS; /* Set success */
return 1; /* Return... */
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 */
+ if(hw_compare_and_store(0, 1, &act->machine.emPendRupts)) { /* See if there is already a stop pending and lock out others if not */
+ thread_mtx_unlock(act); /* Already one pending, unlock the activation */
+ thread_deallocate(act);
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 */
+ act->machine.emPendRupts = 0; /* No memory, say we have given up request */
+ thread_mtx_unlock(act); /* Unlock the activation */
+ thread_deallocate(act);
ml_set_interrupts_enabled(FALSE); /* Set back interruptions */
save->save_r3 = KERN_RESOURCE_SHORTAGE; /* No storage... */
return 1; /* Return... */
act_set_apc(act); /* Set an APC AST */
ml_set_interrupts_enabled(TRUE); /* Enable interruptions now */
- act_unlock_thread(act); /* Unlock the activation */
+ thread_mtx_unlock(act); /* Unlock the activation */
+ thread_deallocate(act);
ml_set_interrupts_enabled(FALSE); /* Set back interruptions */
save->save_r3 = KERN_SUCCESS; /* Hip, hip, horay... */
**
** Inputs:
** ReturnHandler *rh - the return handler control block as required by the APC.
-** thread_act_t act - the activation
+** thread_t act - the activation
**
** Outputs:
** Whatever needed to be done is done.
-----------------------------------------------------------------------*/
-void vmm_interrupt(ReturnHandler *rh, thread_act_t act) {
+void vmm_interrupt(ReturnHandler *rh, thread_t act) {
vmmCntrlTable *CTable;
savearea *sv;
- kfree((vm_offset_t)rh, sizeof(ReturnHandler)); /* Release the return handler block */
+ kfree(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 */
+ act->machine.emPendRupts = 0; /* Say that there are no more interrupts pending */
+ CTable = act->machine.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? */
+ if(act->machine.vmmCEntry && (act->machine.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);
projects / apple / xnu.git / blobdiff