X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fpalacios%2Fsvm.c;h=e1f503499890a11818b3d21b827b6a13b2e70fa2;hb=9fa4d593b592f3619310332bad6db2222d93679a;hp=274d20ff36047b38700f2e401376e9609e2990f1;hpb=1fe82881720f7f9f64f789871f763aca93b47a7e;p=palacios.git diff --git a/palacios/src/palacios/svm.c b/palacios/src/palacios/svm.c index 274d20f..e1f5034 100644 --- a/palacios/src/palacios/svm.c +++ b/palacios/src/palacios/svm.c @@ -40,14 +40,17 @@ #include +#include +#include +#include + + extern void v3_stgi(); extern void v3_clgi(); //extern int v3_svm_launch(vmcb_t * vmcb, struct v3_gprs * vm_regs, uint64_t * fs, uint64_t * gs); extern int v3_svm_launch(vmcb_t * vmcb, struct v3_gprs * vm_regs); - - static vmcb_t * Allocate_VMCB() { vmcb_t * vmcb_page = (vmcb_t *)V3_VAddr(V3_AllocPages(1)); @@ -58,8 +61,6 @@ static vmcb_t * Allocate_VMCB() { -#include - static void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info *vm_info) { vmcb_ctrl_t * ctrl_area = GET_VMCB_CTRL_AREA(vmcb); vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA(vmcb); @@ -72,20 +73,6 @@ static void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info *vm_info) { guest_state->cpl = 0; - - - - /* Set up the efer to enable 64 bit page tables */ - /* - { - struct efer_64 * efer = (struct efer_64 *)&(guest_state->efer); - struct cr4_32 * cr4 = (struct cr4_32 *)&(guest_state->cr4); - efer->lma = 1; - efer->lme = 1; - - cr4->pae = 1; - } - */ guest_state->efer |= EFER_MSR_svm_enable; @@ -108,8 +95,6 @@ static void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info *vm_info) { ctrl_area->instrs.HLT = 1; // guest_state->cr0 = 0x00000001; // PE - - /* ctrl_area->exceptions.de = 1; @@ -128,29 +113,31 @@ static void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info *vm_info) { */ - // Debug of boot on physical machines - 7/14/08 - ctrl_area->instrs.NMI=1; - ctrl_area->instrs.SMI=1; - ctrl_area->instrs.INIT=1; - ctrl_area->instrs.PAUSE=1; - ctrl_area->instrs.shutdown_evts=1; - + ctrl_area->instrs.NMI = 1; + ctrl_area->instrs.SMI = 1; + ctrl_area->instrs.INIT = 1; + ctrl_area->instrs.PAUSE = 1; + ctrl_area->instrs.shutdown_evts = 1; + vm_info->vm_regs.rdx = 0x00000f00; - + guest_state->cr0 = 0x60000010; - - + + guest_state->cs.selector = 0xf000; - guest_state->cs.limit=0xffff; + guest_state->cs.limit = 0xffff; guest_state->cs.base = 0x0000000f0000LL; guest_state->cs.attrib.raw = 0xf3; - + /* DEBUG FOR RETURN CODE */ ctrl_area->exit_code = 1; - struct vmcb_selector *segregs [] = {&(guest_state->ss), &(guest_state->ds), &(guest_state->es), &(guest_state->fs), &(guest_state->gs), NULL}; + struct vmcb_selector *segregs [] = {&(guest_state->ss), &(guest_state->ds), + &(guest_state->es), &(guest_state->fs), + &(guest_state->gs), NULL}; + for ( i = 0; segregs[i] != NULL; i++) { struct vmcb_selector * seg = segregs[i]; @@ -160,12 +147,12 @@ static void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info *vm_info) { seg->attrib.raw = 0xf3; seg->limit = ~0u; } - + guest_state->gdtr.limit = 0x0000ffff; guest_state->gdtr.base = 0x0000000000000000LL; guest_state->idtr.limit = 0x0000ffff; guest_state->idtr.base = 0x0000000000000000LL; - + guest_state->ldtr.selector = 0x0000; guest_state->ldtr.limit = 0x0000ffff; guest_state->ldtr.base = 0x0000000000000000LL; @@ -177,57 +164,39 @@ static void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info *vm_info) { guest_state->dr6 = 0x00000000ffff0ff0LL; guest_state->dr7 = 0x0000000000000400LL; - - + + v3_init_svm_io_map(vm_info); + ctrl_area->IOPM_BASE_PA = (addr_t)V3_PAddr(vm_info->io_map.arch_data); + ctrl_area->instrs.IOIO_PROT = 1; + + + + v3_init_svm_msr_map(vm_info); + ctrl_area->MSRPM_BASE_PA = (addr_t)V3_PAddr(vm_info->msr_map.arch_data); + ctrl_area->instrs.MSR_PROT = 1; - if ( !RB_EMPTY_ROOT(&(vm_info->io_map)) ) { - struct v3_io_hook * iter; - struct rb_node * io_node = v3_rb_first(&(vm_info->io_map)); - addr_t io_port_bitmap; - int i = 0; - - io_port_bitmap = (addr_t)V3_VAddr(V3_AllocPages(3)); - memset((uchar_t*)io_port_bitmap, 0, PAGE_SIZE * 3); - - ctrl_area->IOPM_BASE_PA = (addr_t)V3_PAddr((void *)io_port_bitmap); - - //PrintDebug("Setting up IO Map at 0x%x\n", io_port_bitmap); - - do { - iter = rb_entry(io_node, struct v3_io_hook, tree_node); - - ushort_t port = iter->port; - uchar_t * bitmap = (uchar_t *)io_port_bitmap; - //PrintDebug("%d: Hooking Port %d\n", i, port); - - bitmap += (port / 8); - // PrintDebug("Setting Bit for port 0x%x\n", port); - *bitmap |= 1 << (port % 8); - - i++; - } while ((io_node = v3_rb_next(io_node))); - - - //PrintDebugMemDump((uchar_t*)io_port_bitmap, PAGE_SIZE *2); - - ctrl_area->instrs.IOIO_PROT = 1; - } - - PrintDebug("Exiting on interrupts\n"); ctrl_area->guest_ctrl.V_INTR_MASKING = 1; ctrl_area->instrs.INTR = 1; - - + + if (vm_info->shdw_pg_mode == SHADOW_PAGING) { PrintDebug("Creating initial shadow page table\n"); + /* JRL: This is a performance killer, and a simplistic solution */ + /* We need to fix this */ + ctrl_area->TLB_CONTROL = 1; ctrl_area->guest_ASID = 1; - vm_info->direct_map_pt = (addr_t)V3_PAddr((void *)v3_create_direct_passthrough_pts(vm_info)); + if (v3_init_passthrough_pts(vm_info) == -1) { + PrintError("Could not initialize passthrough page tables\n"); + return ; + } + + vm_info->shdw_pg_state.guest_cr0 = 0x0000000000000010LL; PrintDebug("Created\n"); @@ -240,83 +209,57 @@ static void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info *vm_info) { ctrl_area->cr_reads.cr3 = 1; ctrl_area->cr_writes.cr3 = 1; - - vm_info->guest_efer.value = 0x0LL; - v3_hook_msr(vm_info, EFER_MSR, &v3_handle_efer_read, &v3_handle_efer_write, vm_info); - ctrl_area->instrs.INVLPG = 1; - ctrl_area->exceptions.pf = 1; - - /* JRL: This is a performance killer, and a simplistic solution */ - /* We need to fix this */ - ctrl_area->TLB_CONTROL = 1; - + guest_state->g_pat = 0x7040600070406ULL; - + guest_state->cr0 |= 0x80000000; - + } else if (vm_info->shdw_pg_mode == NESTED_PAGING) { // Flush the TLB on entries/exits ctrl_area->TLB_CONTROL = 1; ctrl_area->guest_ASID = 1; - + // Enable Nested Paging ctrl_area->NP_ENABLE = 1; - + PrintDebug("NP_Enable at 0x%p\n", (void *)&(ctrl_area->NP_ENABLE)); - + // Set the Nested Page Table pointer - vm_info->direct_map_pt = (addr_t)V3_PAddr((void *)v3_create_direct_passthrough_pts(vm_info)); + if (v3_init_passthrough_pts(vm_info) == -1) { + PrintError("Could not initialize Nested page tables\n"); + return ; + } + ctrl_area->N_CR3 = vm_info->direct_map_pt; - - // ctrl_area->N_CR3 = Get_CR3(); - // guest_state->cr3 |= (Get_CR3() & 0xfffff000); - - guest_state->g_pat = 0x7040600070406ULL; - } - - if (vm_info->msr_map.num_hooks > 0) { - PrintDebug("Hooking %d msrs\n", vm_info->msr_map.num_hooks); - ctrl_area->MSRPM_BASE_PA = v3_init_svm_msr_map(vm_info); - ctrl_area->instrs.MSR_PROT = 1; - + guest_state->g_pat = 0x7040600070406ULL; } - - - /* Safety locations for fs/gs */ - // vm_info->fs = 0; - // vm_info->gs = 0; } -static int init_svm_guest(struct guest_info *info) { +static int init_svm_guest(struct guest_info *info, struct v3_vm_config * config_ptr) { + v3_config_guest(info, config_ptr); + PrintDebug("Allocating VMCB\n"); info->vmm_data = (void*)Allocate_VMCB(); + Init_VMCB_BIOS((vmcb_t*)(info->vmm_data), info); - //PrintDebug("Generating Guest nested page tables\n"); - // info->page_tables = NULL; - //info->page_tables = generate_guest_page_tables_64(&(info->mem_layout), &(info->mem_list)); - //info->page_tables = generate_guest_page_tables(&(info->mem_layout), &(info->mem_list)); - // PrintDebugPageTables(info->page_tables); - + v3_config_devices(info, config_ptr); PrintDebug("Initializing VMCB (addr=%p)\n", (void *)info->vmm_data); - Init_VMCB_BIOS((vmcb_t*)(info->vmm_data), info); - + info->run_state = VM_STOPPED; - // info->rip = 0; - info->vm_regs.rdi = 0; info->vm_regs.rsi = 0; info->vm_regs.rbp = 0; @@ -325,7 +268,7 @@ static int init_svm_guest(struct guest_info *info) { info->vm_regs.rdx = 0; info->vm_regs.rcx = 0; info->vm_regs.rax = 0; - + return 0; } @@ -348,24 +291,32 @@ static int start_svm_guest(struct guest_info *info) { ullong_t tmp_tsc; +#ifdef __V3_64BIT__ -#define MSR_STAR 0xc0000081 -#define MSR_LSTAR 0xc0000082 -#define MSR_CSTAR 0xc0000083 -#define MSR_SF_MASK 0xc0000084 -#define MSR_GS_BASE 0xc0000101 +#define MSR_LSTAR 0xc0000082 +#define MSR_CSTAR 0xc0000083 +#define MSR_SF_MASK 0xc0000084 +#define MSR_GS_BASE 0xc0000101 #define MSR_KERNGS_BASE 0xc0000102 - - struct v3_msr host_cstar; - struct v3_msr host_star; struct v3_msr host_lstar; struct v3_msr host_syscall_mask; struct v3_msr host_gs_base; struct v3_msr host_kerngs_base; - v3_enable_ints(); - v3_clgi(); +#else + +#define MSR_STAR 0xc0000081 +#define MSR_SYSENTER_CS 0x00000174 +#define MSR_SYSENTER_ESP 0x00000175 +#define MSR_SYSENTER_EIP 0x00000176 + struct v3_msr host_star; + struct v3_msr host_sysenter_cs; + struct v3_msr host_sysenter_esp; + struct v3_msr host_sysenter_eip; + +#endif + /* @@ -375,28 +326,43 @@ static int start_svm_guest(struct guest_info *info) { */ - v3_get_msr(MSR_STAR, &(host_star.hi), &(host_star.lo)); +#ifdef __V3_64BIT__ + v3_get_msr(MSR_SF_MASK, &(host_syscall_mask.hi), &(host_syscall_mask.lo)); v3_get_msr(MSR_LSTAR, &(host_lstar.hi), &(host_lstar.lo)); v3_get_msr(MSR_CSTAR, &(host_cstar.hi), &(host_cstar.lo)); - v3_get_msr(MSR_SF_MASK, &(host_syscall_mask.hi), &(host_syscall_mask.lo)); v3_get_msr(MSR_GS_BASE, &(host_gs_base.hi), &(host_gs_base.lo)); v3_get_msr(MSR_KERNGS_BASE, &(host_kerngs_base.hi), &(host_kerngs_base.lo)); +#else + v3_get_msr(MSR_SYSENTER_CS, &(host_sysenter_cs.hi), &(host_sysenter_cs.lo)); + v3_get_msr(MSR_SYSENTER_ESP, &(host_sysenter_esp.hi), &(host_sysenter_esp.lo)); + v3_get_msr(MSR_SYSENTER_EIP, &(host_sysenter_eip.hi), &(host_sysenter_eip.lo)); + v3_get_msr(MSR_STAR, &(host_star.hi), &(host_star.lo)); +#endif + + rdtscll(info->time_state.cached_host_tsc); // guest_ctrl->TSC_OFFSET = info->time_state.guest_tsc - info->time_state.cached_host_tsc; - //v3_svm_launch((vmcb_t*)V3_PAddr(info->vmm_data), &(info->vm_regs), &(info->fs), &(info->gs)); v3_svm_launch((vmcb_t*)V3_PAddr(info->vmm_data), &(info->vm_regs)); rdtscll(tmp_tsc); - v3_set_msr(MSR_STAR, host_star.hi, host_star.lo); +#ifdef __V3_64BIT__ + v3_set_msr(MSR_SF_MASK, host_syscall_mask.hi, host_syscall_mask.lo); v3_set_msr(MSR_LSTAR, host_lstar.hi, host_lstar.lo); v3_set_msr(MSR_CSTAR, host_cstar.hi, host_cstar.lo); - v3_set_msr(MSR_SF_MASK, host_syscall_mask.hi, host_syscall_mask.lo); v3_set_msr(MSR_GS_BASE, host_gs_base.hi, host_gs_base.lo); v3_set_msr(MSR_KERNGS_BASE, host_kerngs_base.hi, host_kerngs_base.lo); +#else + v3_set_msr(MSR_SYSENTER_CS, host_sysenter_cs.hi, host_sysenter_cs.lo); + v3_set_msr(MSR_SYSENTER_ESP, host_sysenter_esp.hi, host_sysenter_esp.lo); + v3_set_msr(MSR_SYSENTER_EIP, host_sysenter_eip.hi, host_sysenter_eip.lo); + v3_set_msr(MSR_STAR, host_star.hi, host_star.lo); +#endif + + //PrintDebug("SVM Returned\n"); @@ -407,7 +373,7 @@ static int start_svm_guest(struct guest_info *info) { //PrintDebug("Turning on global interrupts\n"); v3_stgi(); - + v3_clgi(); if ((num_exits % 5000) == 0) { PrintDebug("SVM Exit number %d\n", num_exits); @@ -441,7 +407,7 @@ static int start_svm_guest(struct guest_info *info) { PrintDebug("Shadow Paging Guest Registers:\n"); PrintDebug("\tGuest CR0=%p\n", (void *)(addr_t)(info->shdw_pg_state.guest_cr0)); PrintDebug("\tGuest CR3=%p\n", (void *)(addr_t)(info->shdw_pg_state.guest_cr3)); - // efer + PrintDebug("\tGuest EFER=%p\n", (void *)(addr_t)(info->shdw_pg_state.guest_efer.value)); // CR4 } v3_print_GPRs(info); @@ -508,24 +474,24 @@ int v3_is_svm_capable() { PrintDebug("SVM is locked with a key\n"); } return 0; - + } else { PrintDebug("SVM is available and enabled.\n"); - + v3_cpuid(CPUID_SVM_REV_AND_FEATURE_IDS, &eax, &ebx, &ecx, &edx); PrintDebug("CPUID_FEATURE_IDS_eax=%p\n", (void *)eax); PrintDebug("CPUID_FEATURE_IDS_ebx=%p\n", (void *)ebx); - PrintDebug("CPUID_FEATURE_IDS_ecx=%p\n", (void *)ecx); + PrintDebug("CPUID_FEATURE_IDS_ecx=%p\n", (void *)ecx); PrintDebug("CPUID_FEATURE_IDS_edx=%p\n", (void *)edx); - + if ((edx & CPUID_SVM_REV_AND_FEATURE_IDS_edx_np) == 0) { PrintDebug("SVM Nested Paging not supported\n"); } else { PrintDebug("SVM Nested Paging supported\n"); } - - return 1; + + return 1; } } } @@ -534,9 +500,9 @@ static int has_svm_nested_paging() { addr_t eax = 0, ebx = 0, ecx = 0, edx = 0; v3_cpuid(CPUID_SVM_REV_AND_FEATURE_IDS, &eax, &ebx, &ecx, &edx); - + //PrintDebug("CPUID_FEATURE_IDS_edx=0x%x\n", edx); - + if ((edx & CPUID_SVM_REV_AND_FEATURE_IDS_edx_np) == 0) { PrintDebug("SVM Nested Paging not supported\n"); return 0;