X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fpalacios%2Fvmm_ctrl_regs.c;h=e2ab2bc89c6d295f483e2c6c9b2aaa64eb4c7b90;hb=03a41b18bdb6ce4bf666f18acdaf302e2360efdc;hp=4575f9951f51c95e97dddabac944cfcf5cf98baa;hpb=f84bd0ca67af7c0a1143d5e279e0af408729128e;p=palacios.git diff --git a/palacios/src/palacios/vmm_ctrl_regs.c b/palacios/src/palacios/vmm_ctrl_regs.c index 4575f99..e2ab2bc 100644 --- a/palacios/src/palacios/vmm_ctrl_regs.c +++ b/palacios/src/palacios/vmm_ctrl_regs.c @@ -1,3 +1,22 @@ +/* + * This file is part of the Palacios Virtual Machine Monitor developed + * by the V3VEE Project with funding from the United States National + * Science Foundation and the Department of Energy. + * + * The V3VEE Project is a joint project between Northwestern University + * and the University of New Mexico. You can find out more at + * http://www.v3vee.org + * + * Copyright (c) 2008, Jack Lange + * Copyright (c) 2008, The V3VEE Project + * All rights reserved. + * + * Author: Jack Lange + * + * This is free software. You are permitted to use, + * redistribute, and modify it as specified in the file "V3VEE_LICENSE". + */ + #include #include #include @@ -20,13 +39,10 @@ #endif - - - // First Attempt = 494 lines // current = 106 lines -int handle_cr0_write(struct guest_info * info) { - char instr[15]; +int v3_handle_cr0_write(struct guest_info * info) { + uchar_t instr[15]; int ret; struct x86_instr dec_instr; @@ -50,7 +66,7 @@ int handle_cr0_write(struct guest_info * info) { } - if (opcode_cmp(V3_OPCODE_LMSW, (const uchar_t *)(dec_instr.opcode)) == 0) { + if (v3_opcode_cmp(V3_OPCODE_LMSW, (const uchar_t *)(dec_instr.opcode)) == 0) { struct cr0_real *real_cr0 = (struct cr0_real*)&(info->ctrl_regs.cr0); struct cr0_real *new_cr0 = (struct cr0_real *)(dec_instr.src_operand.operand); uchar_t new_cr0_val; @@ -61,21 +77,21 @@ int handle_cr0_write(struct guest_info * info) { PrintDebug("OperandVal = %x\n", new_cr0_val); - PrintDebug("Old CR0=%x\n", *real_cr0); + PrintDebug("Old CR0=%x\n", *(uint_t *)real_cr0); *(uchar_t*)real_cr0 &= 0xf0; *(uchar_t*)real_cr0 |= new_cr0_val; - PrintDebug("New CR0=%x\n", *real_cr0); + PrintDebug("New CR0=%x\n", *(uint_t *)real_cr0); if (info->shdw_pg_mode == SHADOW_PAGING) { struct cr0_real * shadow_cr0 = (struct cr0_real*)&(info->shdw_pg_state.guest_cr0); - PrintDebug(" Old Shadow CR0=%x\n", *shadow_cr0); + PrintDebug(" Old Shadow CR0=%x\n", *(uint_t *)shadow_cr0); *(uchar_t*)shadow_cr0 &= 0xf0; *(uchar_t*)shadow_cr0 |= new_cr0_val; - PrintDebug("New Shadow CR0=%x\n", *shadow_cr0); + PrintDebug("New Shadow CR0=%x\n", *(uint_t *)shadow_cr0); } - } else if (opcode_cmp(V3_OPCODE_MOV2CR, (const uchar_t *)(dec_instr.opcode)) == 0) { + } else if (v3_opcode_cmp(V3_OPCODE_MOV2CR, (const uchar_t *)(dec_instr.opcode)) == 0) { PrintDebug("MOV2CR0\n"); if (info->cpu_mode == LONG) { @@ -85,38 +101,38 @@ int handle_cr0_write(struct guest_info * info) { struct cr0_32 *real_cr0 = (struct cr0_32*)&(info->ctrl_regs.cr0); struct cr0_32 *new_cr0= (struct cr0_32 *)(dec_instr.src_operand.operand); - PrintDebug("OperandVal = %x, length=%d\n", *new_cr0, dec_instr.src_operand.size); + PrintDebug("OperandVal = %x, length=%d\n", *(uint_t *)new_cr0, dec_instr.src_operand.size); - PrintDebug("Old CR0=%x\n", *real_cr0); + PrintDebug("Old CR0=%x\n", *(uint_t *)real_cr0); *real_cr0 = *new_cr0; if (info->shdw_pg_mode == SHADOW_PAGING) { struct cr0_32 * shadow_cr0 = (struct cr0_32 *)&(info->shdw_pg_state.guest_cr0); - PrintDebug("Old Shadow CR0=%x\n", *shadow_cr0); + PrintDebug("Old Shadow CR0=%x\n", *(uint_t *)shadow_cr0); real_cr0->et = 1; *shadow_cr0 = *new_cr0; shadow_cr0->et = 1; - if (get_mem_mode(info) == VIRTUAL_MEM) { + if (v3_get_mem_mode(info) == VIRTUAL_MEM) { struct cr3_32 * shadow_cr3 = (struct cr3_32 *)&(info->shdw_pg_state.shadow_cr3); - + PrintDebug("Setting up Shadow Page Table\n"); info->ctrl_regs.cr3 = *(addr_t*)shadow_cr3; } else { info->ctrl_regs.cr3 = *(addr_t*)&(info->direct_map_pt); real_cr0->pg = 1; } - PrintDebug("New Shadow CR0=%x\n",*shadow_cr0); + PrintDebug("New Shadow CR0=%x\n",*(uint_t *)shadow_cr0); } - PrintDebug("New CR0=%x\n", *real_cr0); + PrintDebug("New CR0=%x\n", *(uint_t *)real_cr0); } - } else if (opcode_cmp(V3_OPCODE_CLTS, (const uchar_t *)(dec_instr.opcode)) == 0) { + } else if (v3_opcode_cmp(V3_OPCODE_CLTS, (const uchar_t *)(dec_instr.opcode)) == 0) { // CLTS struct cr0_32 *real_cr0 = (struct cr0_32*)&(info->ctrl_regs.cr0); @@ -139,8 +155,8 @@ int handle_cr0_write(struct guest_info * info) { // First attempt = 253 lines // current = 51 lines -int handle_cr0_read(struct guest_info * info) { - char instr[15]; +int v3_handle_cr0_read(struct guest_info * info) { + uchar_t instr[15]; int ret; struct x86_instr dec_instr; @@ -163,12 +179,12 @@ int handle_cr0_read(struct guest_info * info) { return -1; } - if (opcode_cmp(V3_OPCODE_MOVCR2, (const uchar_t *)(dec_instr.opcode)) == 0) { + if (v3_opcode_cmp(V3_OPCODE_MOVCR2, (const uchar_t *)(dec_instr.opcode)) == 0) { struct cr0_32 * virt_cr0 = (struct cr0_32 *)(dec_instr.dst_operand.operand); struct cr0_32 * real_cr0 = (struct cr0_32 *)&(info->ctrl_regs.cr0); PrintDebug("MOVCR2\n"); - PrintDebug("CR0 at 0x%x\n", real_cr0); + PrintDebug("CR0 at 0x%p\n", (void *)real_cr0); if (info->shdw_pg_mode == SHADOW_PAGING) { *virt_cr0 = *(struct cr0_32 *)&(info->shdw_pg_state.guest_cr0); @@ -178,14 +194,14 @@ int handle_cr0_read(struct guest_info * info) { PrintDebug("real CR0: %x\n", *(uint_t*)real_cr0); PrintDebug("returned CR0: %x\n", *(uint_t*)virt_cr0); - } else if (opcode_cmp(V3_OPCODE_SMSW, (const uchar_t *)(dec_instr.opcode)) == 0) { + } else if (v3_opcode_cmp(V3_OPCODE_SMSW, (const uchar_t *)(dec_instr.opcode)) == 0) { struct cr0_real *real_cr0= (struct cr0_real*)&(info->ctrl_regs.cr0); struct cr0_real *virt_cr0 = (struct cr0_real *)(dec_instr.dst_operand.operand); char cr0_val = *(char*)real_cr0 & 0x0f; PrintDebug("SMSW\n"); - PrintDebug("CR0 at 0x%x\n", real_cr0); + PrintDebug("CR0 at 0x%p\n", real_cr0); *(char *)virt_cr0 &= 0xf0; *(char *)virt_cr0 |= cr0_val; @@ -202,11 +218,11 @@ int handle_cr0_read(struct guest_info * info) { -// First Attemp = 256 lines +// First Attempt = 256 lines // current = 65 lines -int handle_cr3_write(struct guest_info * info) { +int v3_handle_cr3_write(struct guest_info * info) { int ret; - char instr[15]; + uchar_t instr[15]; struct x86_instr dec_instr; if (info->mem_mode == PHYSICAL_MEM) { @@ -228,11 +244,11 @@ int handle_cr3_write(struct guest_info * info) { return -1; } - if (opcode_cmp(V3_OPCODE_MOV2CR, (const uchar_t *)(dec_instr.opcode)) == 0) { + if (v3_opcode_cmp(V3_OPCODE_MOV2CR, (const uchar_t *)(dec_instr.opcode)) == 0) { PrintDebug("MOV2CR3\n"); - PrintDebug("CR3 at 0x%x\n", &(info->ctrl_regs.cr3)); + PrintDebug("CR3 at 0x%p\n", &(info->ctrl_regs.cr3)); if (info->shdw_pg_mode == SHADOW_PAGING) { struct cr3_32 * new_cr3 = (struct cr3_32 *)(dec_instr.src_operand.operand); @@ -245,27 +261,34 @@ int handle_cr3_write(struct guest_info * info) { *(uint_t*)shadow_cr3, *(uint_t*)guest_cr3); - cached = cache_page_tables32(info, CR3_TO_PDE32(*(addr_t *)new_cr3)); + + cached = v3_cache_page_tables32(info, (addr_t)V3_PAddr((void *)(addr_t)CR3_TO_PDE32((void *)*(addr_t *)new_cr3))); + if (cached == -1) { PrintError("CR3 Cache failed\n"); return -1; } else if (cached == 0) { - - addr_t shadow_pt; - - PrintDebug("New CR3 is different - flushing shadow page table\n"); + if( info->mem_mode == VIRTUAL_MEM ) + { + PrintDebug("New CR3 is different - flushing shadow page table %p\n", shadow_cr3 ); - delete_page_tables_pde32((pde32_t *)CR3_TO_PDE32(*(uint_t*)shadow_cr3)); + delete_page_tables_pde32((pde32_t *)CR3_TO_PDE32(*(uint_t*)shadow_cr3)); + } - shadow_pt = create_new_shadow_pt32(); + shadow_pt = v3_create_new_shadow_pt32(); - shadow_cr3->pdt_base_addr = PD32_BASE_ADDR(shadow_pt); + shadow_cr3->pdt_base_addr = (addr_t)V3_PAddr((void *)(addr_t)PD32_BASE_ADDR(shadow_pt)); + PrintDebug( "Created new shadow page table %p\n", (void *)(addr_t)shadow_cr3->pdt_base_addr ); + //PrintDebugPageTables( (pde32_t *)CR3_TO_PDE32(*(uint_t*)shadow_cr3) ); + + } else { PrintDebug("Reusing cached shadow Page table\n"); } + shadow_cr3->pwt = new_cr3->pwt; shadow_cr3->pcd = new_cr3->pcd; @@ -294,8 +317,8 @@ int handle_cr3_write(struct guest_info * info) { // first attempt = 156 lines // current = 36 lines -int handle_cr3_read(struct guest_info * info) { - char instr[15]; +int v3_handle_cr3_read(struct guest_info * info) { + uchar_t instr[15]; int ret; struct x86_instr dec_instr; @@ -318,11 +341,11 @@ int handle_cr3_read(struct guest_info * info) { return -1; } - if (opcode_cmp(V3_OPCODE_MOVCR2, (const uchar_t *)(dec_instr.opcode)) == 0) { + if (v3_opcode_cmp(V3_OPCODE_MOVCR2, (const uchar_t *)(dec_instr.opcode)) == 0) { PrintDebug("MOVCR32\n"); struct cr3_32 * virt_cr3 = (struct cr3_32 *)(dec_instr.dst_operand.operand); - PrintDebug("CR3 at 0x%x\n", &(info->ctrl_regs.cr3)); + PrintDebug("CR3 at 0x%p\n", &(info->ctrl_regs.cr3)); if (info->shdw_pg_mode == SHADOW_PAGING) { *virt_cr3 = *(struct cr3_32 *)&(info->shdw_pg_state.guest_cr3); @@ -334,12 +357,7 @@ int handle_cr3_read(struct guest_info * info) { return -1; } - info->rip += dec_instr.instr_length; return 0; } - - - -