X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fpalacios%2Fsvm_handler.c;h=1545cad7d60a6d545f622ab8899932f16a143a27;hb=cbf35ad72de3a7a1f6eee3e8b2b35d7f31df22a5;hp=fa711629c6e3f890c4a8a673f52a258b1c81c5b2;hpb=41d6dcb0a638ebdc01b89a9edf427c75975b2003;p=palacios.releases.git diff --git a/palacios/src/palacios/svm_handler.c b/palacios/src/palacios/svm_handler.c index fa71162..1545cad 100644 --- a/palacios/src/palacios/svm_handler.c +++ b/palacios/src/palacios/svm_handler.c @@ -4,6 +4,8 @@ #include #include #include +#include +#include #include @@ -40,7 +42,38 @@ int handle_svm_exit(struct guest_info * info) { // Disable printing io exits due to bochs debug messages //if (!((exit_code == VMEXIT_IOIO) && ((ushort_t)(guest_ctrl->exit_info1 >> 16) == 0x402))) { - PrintDebug("SVM Returned: Exit Code: %x \t\t(tsc=%ul)\n",exit_code, (uint_t)info->time_state.guest_tsc); + + // PrintDebug("SVM Returned: Exit Code: 0x%x \t\t(tsc=%ul)\n",exit_code, (uint_t)info->time_state.guest_tsc); + + if ((0) && (exit_code < 0x4f)) { + char instr[32]; + int ret; + // Dump out the instr stream + + //PrintDebug("RIP: %x\n", guest_state->rip); + PrintDebug("RIP Linear: %x\n", get_addr_linear(info, info->rip, &(info->segments.cs))); + + // OK, now we will read the instruction + // The only difference between PROTECTED and PROTECTED_PG is whether we read + // from guest_pa or guest_va + if (info->mem_mode == PHYSICAL_MEM) { + // The real rip address is actually a combination of the rip + CS base + ret = read_guest_pa_memory(info, get_addr_linear(info, info->rip, &(info->segments.cs)), 32, instr); + } else { + ret = read_guest_va_memory(info, get_addr_linear(info, info->rip, &(info->segments.cs)), 32, instr); + } + + if (ret != 32) { + // I think we should inject a GPF into the guest + PrintDebug("Could not read instruction (ret=%d)\n", ret); + } else { + + PrintDebug("Instr Stream:\n"); + PrintTraceMemDump(instr, 32); + } + } + + // } // PrintDebugVMCB((vmcb_t*)(info->vmm_data)); @@ -76,26 +109,30 @@ int handle_svm_exit(struct guest_info * info) { } } } else if (exit_code == VMEXIT_CR0_WRITE) { +#ifdef DEBUG_CTRL_REGS PrintDebug("CR0 Write\n"); - +#endif if (handle_cr0_write(info) == -1) { return -1; } } else if (exit_code == VMEXIT_CR0_READ) { +#ifdef DEBUG_CTRL_REGS PrintDebug("CR0 Read\n"); - +#endif if (handle_cr0_read(info) == -1) { return -1; } } else if (exit_code == VMEXIT_CR3_WRITE) { +#ifdef DEBUG_CTRL_REGS PrintDebug("CR3 Write\n"); - +#endif if (handle_cr3_write(info) == -1) { return -1; } } else if (exit_code == VMEXIT_CR3_READ) { +#ifdef DEBUG_CTRL_REGS PrintDebug("CR3 Read\n"); - +#endif if (handle_cr3_read(info) == -1) { return -1; } @@ -103,21 +140,28 @@ int handle_svm_exit(struct guest_info * info) { } else if (exit_code == VMEXIT_EXCP14) { addr_t fault_addr = guest_ctrl->exit_info2; pf_error_t * error_code = (pf_error_t *)&(guest_ctrl->exit_info1); - +#ifdef DEBUG_SHADOW_PAGING PrintDebug("PageFault at %x (error=%d)\n", fault_addr, *error_code); - +#endif if (info->shdw_pg_mode == SHADOW_PAGING) { if (handle_shadow_pagefault(info, fault_addr, *error_code) == -1) { return -1; } } else { - PrintDebug("Page fault in un implemented paging mode\n"); + + PrintError("Page fault in un implemented paging mode\n"); + return -1; } + } else if (exit_code == VMEXIT_NPF) { + PrintError("Currently unhandled Nested Page Fault\n"); + return -1; } else if (exit_code == VMEXIT_INVLPG) { if (info->shdw_pg_mode == SHADOW_PAGING) { +#ifdef DEBUG_SHADOW_PAGING PrintDebug("Invlpg\n"); +#endif if (handle_shadow_invlpg(info) == -1) { return -1; } @@ -131,9 +175,20 @@ int handle_svm_exit(struct guest_info * info) { // handle_svm_intr(info); + } else if (exit_code == VMEXIT_SMI) { + + // handle_svm_smi(info); // ignored for now + } else if (exit_code == VMEXIT_HLT) { PrintDebug("Guest halted\n"); - return -1; + if (handle_svm_halt(info) == -1) { + return -1; + } + } else if (exit_code == VMEXIT_PAUSE) { + PrintDebug("Guest paused\n"); + if (handle_svm_pause(info) == -1) { + return -1; + } } else { addr_t rip_addr; char buf[15]; @@ -144,40 +199,40 @@ int handle_svm_exit(struct guest_info * info) { - PrintDebug("SVM Returned:(VMCB=%x)\n", info->vmm_data); - PrintDebug("RIP: %x\n", guest_state->rip); - PrintDebug("RIP Linear: %x\n", rip_addr); + PrintError("SVM Returned:(VMCB=%x)\n", info->vmm_data); + PrintError("RIP: %x\n", guest_state->rip); + PrintError("RIP Linear: %x\n", rip_addr); - PrintDebug("SVM Returned: Exit Code: %x\n",exit_code); + PrintError("SVM Returned: Exit Code: %x\n",exit_code); - PrintDebug("io_info1 low = 0x%.8x\n", *(uint_t*)&(guest_ctrl->exit_info1)); - PrintDebug("io_info1 high = 0x%.8x\n", *(uint_t *)(((uchar_t *)&(guest_ctrl->exit_info1)) + 4)); + PrintError("io_info1 low = 0x%.8x\n", *(uint_t*)&(guest_ctrl->exit_info1)); + PrintError("io_info1 high = 0x%.8x\n", *(uint_t *)(((uchar_t *)&(guest_ctrl->exit_info1)) + 4)); - PrintDebug("io_info2 low = 0x%.8x\n", *(uint_t*)&(guest_ctrl->exit_info2)); - PrintDebug("io_info2 high = 0x%.8x\n", *(uint_t *)(((uchar_t *)&(guest_ctrl->exit_info2)) + 4)); + PrintError("io_info2 low = 0x%.8x\n", *(uint_t*)&(guest_ctrl->exit_info2)); + PrintError("io_info2 high = 0x%.8x\n", *(uint_t *)(((uchar_t *)&(guest_ctrl->exit_info2)) + 4)); if (info->mem_mode == PHYSICAL_MEM) { if (guest_pa_to_host_pa(info, guest_state->rip, &host_addr) == -1) { - PrintDebug("Could not translate guest_state->rip to host address\n"); + PrintError("Could not translate guest_state->rip to host address\n"); return -1; } } else if (info->mem_mode == VIRTUAL_MEM) { if (guest_va_to_host_pa(info, guest_state->rip, &host_addr) == -1) { - PrintDebug("Could not translate guest_state->rip to host address\n"); + PrintError("Could not translate guest_state->rip to host address\n"); return -1; } } else { - PrintDebug("Invalid memory mode\n"); + PrintError("Invalid memory mode\n"); return -1; } - PrintDebug("Host Address of rip = 0x%x\n", host_addr); + PrintError("Host Address of rip = 0x%x\n", host_addr); memset(buf, 0, 15); - PrintDebug("Reading from 0x%x in guest\n", rip_addr); + PrintError("Reading from 0x%x in guest\n", rip_addr); if (info->mem_mode == PHYSICAL_MEM) { read_guest_pa_memory(info, rip_addr, 15, buf); @@ -187,7 +242,7 @@ int handle_svm_exit(struct guest_info * info) { PrintTraceMemDump(buf, 15); - while(1); + return -1; } @@ -200,6 +255,9 @@ int handle_svm_exit(struct guest_info * info) { case EXTERNAL_IRQ: { uint_t irq = get_intr_number(info); + + // check to see if ==-1 (non exists) + /* guest_ctrl->EVENTINJ.vector = irq; guest_ctrl->EVENTINJ.valid = 1; @@ -210,9 +268,9 @@ int handle_svm_exit(struct guest_info * info) { guest_ctrl->guest_ctrl.V_INTR_VECTOR = irq; guest_ctrl->guest_ctrl.V_IGN_TPR = 1; guest_ctrl->guest_ctrl.V_INTR_PRIO = 0xf; - +#ifdef DEBUG_INTERRUPTS PrintDebug("Injecting Interrupt %d (EIP=%x)\n", guest_ctrl->guest_ctrl.V_INTR_VECTOR, info->rip); - +#endif injecting_intr(info, irq, EXTERNAL_IRQ); break; @@ -226,14 +284,20 @@ int handle_svm_exit(struct guest_info * info) { guest_ctrl->EVENTINJ.type = SVM_INJECTION_EXCEPTION; - if (info->intr_state.excp_error_code) { + if (info->intr_state.excp_error_code_valid) { //PAD guest_ctrl->EVENTINJ.error_code = info->intr_state.excp_error_code; guest_ctrl->EVENTINJ.ev = 1; +#ifdef DEBUG_INTERRUPTS + PrintDebug("Injecting error code %x\n", guest_ctrl->EVENTINJ.error_code); +#endif } guest_ctrl->EVENTINJ.vector = excp; + guest_ctrl->EVENTINJ.valid = 1; +#ifdef DEBUG_INTERRUPTS PrintDebug("Injecting Interrupt %d (EIP=%x)\n", guest_ctrl->EVENTINJ.vector, info->rip); +#endif injecting_intr(info, excp, EXCEPTION); break; } @@ -246,7 +310,7 @@ int handle_svm_exit(struct guest_info * info) { case INVALID_INTR: default: - PrintDebug("Attempted to issue an invalid interrupt\n"); + PrintError("Attempted to issue an invalid interrupt\n"); return -1; } @@ -271,7 +335,7 @@ int handle_svm_exit(struct guest_info * info) { set_vmcb_segments((vmcb_t*)(info->vmm_data), &(info->segments)); if (exit_code == VMEXIT_INTR) { - PrintDebug("INTR ret IP = %x\n", guest_state->rip); + //PrintDebug("INTR ret IP = %x\n", guest_state->rip); } return 0;