X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fpalacios%2Fsvm.c;h=87ecc828fa9b9cd03ace764354c7f18e96cec5a5;hb=496b928649b2a63c3e21e099ce914ec00b3d7227;hp=28eadc78d4f6e7003e175aed58bed0f08edf589b;hpb=a2b7cc4f2d739213d1edefb85ff941c41c86907b;p=palacios.git diff --git a/palacios/src/palacios/svm.c b/palacios/src/palacios/svm.c index 28eadc7..87ecc82 100644 --- a/palacios/src/palacios/svm.c +++ b/palacios/src/palacios/svm.c @@ -35,12 +35,13 @@ #include #include #include +#include +#include +#include -extern uint_t Get_CR3(); - - +#include extern void v3_stgi(); extern void v3_clgi(); @@ -59,7 +60,7 @@ 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); @@ -76,8 +77,32 @@ static void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info *vm_info) { //ctrl_area->instrs.instrs.CR0 = 1; ctrl_area->cr_reads.cr0 = 1; ctrl_area->cr_writes.cr0 = 1; + //ctrl_area->cr_reads.cr4 = 1; + ctrl_area->cr_writes.cr4 = 1; + + + /* 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; + vm_info->guest_efer.value = 0x0LL; + + v3_hook_msr(vm_info, EFER_MSR, + &v3_handle_efer_read, + &v3_handle_efer_write, + vm_info); + + + guest_state->rflags = 0x00000002; // The reserved bit is always 1 ctrl_area->svm_instrs.VMRUN = 1; ctrl_area->svm_instrs.VMMCALL = 1; @@ -114,6 +139,8 @@ static void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info *vm_info) { ctrl_area->exceptions.nmi = 1; */ + + // Debug of boot on physical machines - 7/14/08 ctrl_area->instrs.NMI=1; ctrl_area->instrs.SMI=1; @@ -121,18 +148,21 @@ static void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info *vm_info) { 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.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}; for ( i = 0; segregs[i] != NULL; i++) { struct vmcb_selector * seg = segregs[i]; @@ -160,10 +190,17 @@ static void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info *vm_info) { guest_state->dr6 = 0x00000000ffff0ff0LL; guest_state->dr7 = 0x0000000000000400LL; - if (vm_info->io_map.num_ports > 0) { - struct vmm_io_hook * iter; + + + + + + 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); @@ -171,22 +208,26 @@ static void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info *vm_info) { //PrintDebug("Setting up IO Map at 0x%x\n", io_port_bitmap); - FOREACH_IO_HOOK(vm_info->io_map, iter) { + 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; @@ -195,12 +236,20 @@ static void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info *vm_info) { if (vm_info->shdw_pg_mode == SHADOW_PAGING) { PrintDebug("Creating initial shadow page table\n"); - vm_info->direct_map_pt = (addr_t)create_passthrough_pde32_pts(vm_info); - vm_info->shdw_pg_state.shadow_cr3 |= (vm_info->direct_map_pt & ~0xfff); + + + + /* Testing 64 bit page tables for long paged real mode guests */ + // vm_info->direct_map_pt = (addr_t)V3_PAddr(create_passthrough_pts_64(vm_info)); + vm_info->direct_map_pt = (addr_t)V3_PAddr(v3_create_direct_passthrough_pts(vm_info)); + /* End Test */ + vm_info->shdw_pg_state.guest_cr0 = 0x0000000000000010LL; PrintDebug("Created\n"); - guest_state->cr3 = vm_info->shdw_pg_state.shadow_cr3; + + guest_state->cr3 = vm_info->direct_map_pt; + //PrintDebugPageTables((pde32_t*)(vm_info->shdw_pg_state.shadow_cr3.e_reg.low)); @@ -218,7 +267,6 @@ static void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info *vm_info) { ctrl_area->TLB_CONTROL = 1; - guest_state->g_pat = 0x7040600070406ULL; guest_state->cr0 |= 0x80000000; @@ -230,10 +278,10 @@ static void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info *vm_info) { // Enable Nested Paging ctrl_area->NP_ENABLE = 1; - PrintDebug("NP_Enable at 0x%x\n", &(ctrl_area->NP_ENABLE)); + 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)create_passthrough_pde32_pts(vm_info) & ~0xfff); + vm_info->direct_map_pt = ((addr_t)create_passthrough_pts_32(vm_info) & ~0xfff); ctrl_area->N_CR3 = vm_info->direct_map_pt; // ctrl_area->N_CR3 = Get_CR3(); @@ -243,6 +291,14 @@ static void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info *vm_info) { } + 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; + + } + + } @@ -260,7 +316,7 @@ static int init_svm_guest(struct guest_info *info) { // PrintDebugPageTables(info->page_tables); - PrintDebug("Initializing VMCB (addr=%x)\n", info->vmm_data); + PrintDebug("Initializing VMCB (addr=%p)\n", (void *)info->vmm_data); Init_VMCB_BIOS((vmcb_t*)(info->vmm_data), info); @@ -290,7 +346,7 @@ static int start_svm_guest(struct guest_info *info) { - PrintDebug("Launching SVM VM (vmcb=%x)\n", info->vmm_data); + PrintDebug("Launching SVM VM (vmcb=%p)\n", (void *)info->vmm_data); //PrintDebugVMCB((vmcb_t*)(info->vmm_data)); info->run_state = VM_RUNNING; @@ -299,10 +355,35 @@ static int start_svm_guest(struct guest_info *info) { ullong_t tmp_tsc; + +#define MSR_STAR 0xc0000081 +#define MSR_LSTAR 0xc0000082 +#define MSR_CSTAR 0xc0000083 +#define MSR_SF_MASK 0xc0000084 +#define MSR_GS_BASE 0xc0000101 + + 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; + v3_enable_ints(); v3_clgi(); - // PrintDebug("SVM Entry to rip=%x...\n", info->rip); + + /* + PrintDebug("SVM Entry to CS=%p rip=%p...\n", + (void *)(addr_t)info->segments.cs.base, + (void *)(addr_t)info->rip); + */ + + + v3_get_msr(MSR_STAR, &(host_star.hi), &(host_star.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)); rdtscll(info->time_state.cached_host_tsc); guest_ctrl->TSC_OFFSET = info->time_state.guest_tsc - info->time_state.cached_host_tsc; @@ -310,21 +391,34 @@ static int start_svm_guest(struct guest_info *info) { 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); + 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); + //PrintDebug("SVM Returned\n"); + v3_update_time(info, tmp_tsc - info->time_state.cached_host_tsc); num_exits++; + //PrintDebug("Turning on global interrupts\n"); v3_stgi(); - if ((num_exits % 25) == 0) { + + if ((num_exits % 5000) == 0) { PrintDebug("SVM Exit number %d\n", num_exits); + if (info->enable_profiler) + v3_print_profile(info); } + if (v3_handle_svm_exit(info) != 0) { - + vmcb_ctrl_t * guest_ctrl = GET_VMCB_CTRL_AREA((vmcb_t*)(info->vmm_data)); addr_t host_addr; addr_t linear_addr = 0; @@ -332,31 +426,47 @@ static int start_svm_guest(struct guest_info *info) { PrintDebug("SVM ERROR!!\n"); - PrintDebug("RIP: %x\n", guest_state->rip); + PrintDebug("RIP: %p\n", (void *)(addr_t)(guest_state->rip)); linear_addr = get_addr_linear(info, guest_state->rip, &(info->segments.cs)); - PrintDebug("RIP Linear: %x\n", linear_addr); + PrintDebug("RIP Linear: %p\n", (void *)linear_addr); v3_print_segments(info); v3_print_ctrl_regs(info); + if (info->shdw_pg_mode == SHADOW_PAGING) { + 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 + // CR4 + } v3_print_GPRs(info); + + PrintDebug("SVM Exit Code: %p\n", (void *)(addr_t)guest_ctrl->exit_code); + + PrintDebug("exit_info1 low = 0x%.8x\n", *(uint_t*)&(guest_ctrl->exit_info1)); + PrintDebug("exit_info1 high = 0x%.8x\n", *(uint_t *)(((uchar_t *)&(guest_ctrl->exit_info1)) + 4)); + + PrintDebug("exit_info2 low = 0x%.8x\n", *(uint_t*)&(guest_ctrl->exit_info2)); + PrintDebug("exit_info2 high = 0x%.8x\n", *(uint_t *)(((uchar_t *)&(guest_ctrl->exit_info2)) + 4)); if (info->mem_mode == PHYSICAL_MEM) { - guest_pa_to_host_pa(info, linear_addr, &host_addr); + guest_pa_to_host_va(info, linear_addr, &host_addr); } else if (info->mem_mode == VIRTUAL_MEM) { - guest_va_to_host_pa(info, linear_addr, &host_addr); + guest_va_to_host_va(info, linear_addr, &host_addr); } - PrintDebug("Host Address of rip = 0x%x\n", host_addr); + PrintDebug("Host Address of rip = 0x%p\n", (void *)host_addr); - PrintDebug("Instr (15 bytes) at %x:\n", host_addr); + PrintDebug("Instr (15 bytes) at %p:\n", (void *)host_addr); PrintTraceMemDump((uchar_t *)host_addr, 15); break; } + } return 0; } @@ -376,7 +486,7 @@ int v3_is_svm_capable() { v3_cpuid(CPUID_FEATURE_IDS, &eax, &ebx, &ecx, &edx); - PrintDebug("CPUID_FEATURE_IDS_ecx=0x%x\n", ecx); + PrintDebug("CPUID_FEATURE_IDS_ecx=%p\n", (void *)ecx); if ((ecx & CPUID_FEATURE_IDS_ecx_svm_avail) == 0) { PrintDebug("SVM Not Available\n"); @@ -391,7 +501,7 @@ int v3_is_svm_capable() { v3_cpuid(CPUID_SVM_REV_AND_FEATURE_IDS, &eax, &ebx, &ecx, &edx); - PrintDebug("CPUID_FEATURE_IDS_edx=0x%x\n", edx); + PrintDebug("CPUID_FEATURE_IDS_edx=%p\n", (void *)edx); if ((edx & CPUID_SVM_REV_AND_FEATURE_IDS_edx_svml) == 0) { PrintDebug("SVM BIOS Disabled, not unlockable\n"); @@ -404,8 +514,11 @@ int v3_is_svm_capable() { PrintDebug("SVM is available and enabled.\n"); v3_cpuid(CPUID_SVM_REV_AND_FEATURE_IDS, &eax, &ebx, &ecx, &edx); - - PrintDebug("CPUID_FEATURE_IDS_edx=0x%x\n", 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_edx=%p\n", (void *)edx); + if ((edx & CPUID_SVM_REV_AND_FEATURE_IDS_edx_np) == 0) { PrintDebug("SVM Nested Paging not supported\n"); @@ -502,7 +615,7 @@ void v3_init_SVM(struct v3_ctrl_ops * vmm_ops) { //msr.e_reg.low = (uint_t)host_state; msr.r_reg = (addr_t)host_state; - PrintDebug("Host State being saved at %x\n", (addr_t)host_state); + PrintDebug("Host State being saved at %p\n", (void *)(addr_t)host_state); v3_set_msr(SVM_VM_HSAVE_PA_MSR, msr.e_reg.high, msr.e_reg.low); @@ -648,7 +761,7 @@ void v3_init_SVM(struct v3_ctrl_ops * vmm_ops) { if (vm_info.page_mode == SHADOW_PAGING) { PrintDebug("Creating initial shadow page table\n"); - vm_info.shdw_pg_state.shadow_cr3 |= ((addr_t)create_passthrough_pde32_pts(&vm_info) & ~0xfff); + vm_info.shdw_pg_state.shadow_cr3 |= ((addr_t)create_passthrough_pts_32(&vm_info) & ~0xfff); PrintDebug("Created\n"); guest_state->cr3 = vm_info.shdw_pg_state.shadow_cr3;