#include <palacios/vmm_cpuid.h>
#include <palacios/vmm_direct_paging.h>
-#ifdef CONFIG_SYMBIOTIC
-#include <palacios/vmm_sym_iface.h>
-#endif
#ifdef CONFIG_TELEMETRY
#include <palacios/vmm_telemetry.h>
#endif
-int v3_handle_svm_exit(struct guest_info * info) {
- vmcb_ctrl_t * guest_ctrl = 0;
- vmcb_saved_state_t * guest_state = 0;
- ulong_t exit_code = 0;
-
-#ifdef CONFIG_SYMBIOTIC
- static int sym_started = 0;
-#endif
-
-
- guest_ctrl = GET_VMCB_CTRL_AREA((vmcb_t*)(info->vmm_data));
- guest_state = GET_VMCB_SAVE_STATE_AREA((vmcb_t*)(info->vmm_data));
-
- // Update the high level state
- info->rip = guest_state->rip;
- info->vm_regs.rsp = guest_state->rsp;
- info->vm_regs.rax = guest_state->rax;
-
- info->cpl = guest_state->cpl;
-
- info->ctrl_regs.cr0 = guest_state->cr0;
- info->ctrl_regs.cr2 = guest_state->cr2;
- info->ctrl_regs.cr3 = guest_state->cr3;
- info->ctrl_regs.cr4 = guest_state->cr4;
- info->dbg_regs.dr6 = guest_state->dr6;
- info->dbg_regs.dr7 = guest_state->dr7;
- info->ctrl_regs.cr8 = guest_ctrl->guest_ctrl.V_TPR;
- info->ctrl_regs.rflags = guest_state->rflags;
- info->ctrl_regs.efer = guest_state->efer;
-
- v3_get_vmcb_segments((vmcb_t*)(info->vmm_data), &(info->segments));
- info->cpu_mode = v3_get_vm_cpu_mode(info);
- info->mem_mode = v3_get_vm_mem_mode(info);
-
- exit_code = guest_ctrl->exit_code;
-
-
-
-#ifdef CONFIG_SYMBIOTIC
- if (0) {
- // if (sym_started == 1) {
- // ignore interrupt injection if we just started a symcall
- PrintDebug("SVM Exit: %s (rip=%p) (info1=%p) (info2=%p)\n", vmexit_code_to_str(exit_code),
- (void *)(addr_t)info->rip, (void *)(addr_t)guest_ctrl->exit_info1,
- (void *)(addr_t)guest_ctrl->exit_info2);
-
- /* if (exit_code == VMEXIT_EXCP14) {
- PrintGuestPageTree(info, guest_ctrl->exit_info2, info->shdw_pg_state.guest_cr3);
- }*/
-
- }
-#endif
-
-
- if ((info->intr_state.irq_pending == 1) && (guest_ctrl->guest_ctrl.V_IRQ == 0)) {
-
-#ifdef CONFIG_DEBUG_INTERRUPTS
- PrintDebug("INTAK cycle completed for irq %d\n", info->intr_state.irq_vector);
-#endif
-
- info->intr_state.irq_started = 1;
- info->intr_state.irq_pending = 0;
-
- v3_injecting_intr(info, info->intr_state.irq_vector, V3_EXTERNAL_IRQ);
- }
-
- if ((info->intr_state.irq_started == 1) && (guest_ctrl->exit_int_info.valid == 0)) {
-#ifdef CONFIG_DEBUG_INTERRUPTS
- PrintDebug("Interrupt %d taken by guest\n", info->intr_state.irq_vector);
-#endif
-
- // Interrupt was taken fully vectored
- info->intr_state.irq_started = 0;
-
- } else {
-#ifdef CONFIG_DEBUG_INTERRUPTS
- PrintDebug("EXIT INT INFO is set (vec=%d)\n", guest_ctrl->exit_int_info.vector);
-#endif
- }
-
+int v3_handle_svm_exit(struct guest_info * info, addr_t exit_code, addr_t exit_info1, addr_t exit_info2) {
#ifdef CONFIG_TELEMETRY
if (info->enable_telemetry) {
switch (exit_code) {
case VMEXIT_IOIO: {
- struct svm_io_info * io_info = (struct svm_io_info *)&(guest_ctrl->exit_info1);
+ struct svm_io_info * io_info = (struct svm_io_info *)&(exit_info1);
if (io_info->type == 0) {
if (io_info->str) {
- if (v3_handle_svm_io_outs(info) == -1 ) {
+ if (v3_handle_svm_io_outs(info, io_info) == -1 ) {
return -1;
}
} else {
- if (v3_handle_svm_io_out(info) == -1) {
+ if (v3_handle_svm_io_out(info, io_info) == -1) {
return -1;
}
}
} else {
if (io_info->str) {
- if (v3_handle_svm_io_ins(info) == -1) {
+ if (v3_handle_svm_io_ins(info, io_info) == -1) {
return -1;
}
} else {
- if (v3_handle_svm_io_in(info) == -1) {
+ if (v3_handle_svm_io_in(info, io_info) == -1) {
return -1;
}
}
}
+
+ info->rip = exit_info2;
+
break;
}
case VMEXIT_MSR:
- if (guest_ctrl->exit_info1 == 0) {
+ if (exit_info1 == 0) {
if (v3_handle_msr_read(info) == -1) {
return -1;
}
- } else if (guest_ctrl->exit_info1 == 1) {
+ } else if (exit_info1 == 1) {
if (v3_handle_msr_write(info) == -1) {
return -1;
}
}
break;
case VMEXIT_EXCP14: {
- addr_t fault_addr = guest_ctrl->exit_info2;
- pf_error_t * error_code = (pf_error_t *)&(guest_ctrl->exit_info1);
+ addr_t fault_addr = exit_info2;
+ pf_error_t * error_code = (pf_error_t *)&(exit_info1);
#ifdef CONFIG_DEBUG_SHADOW_PAGING
PrintDebug("PageFault at %p (error=%d)\n",
(void *)fault_addr, *(uint_t *)error_code);
break;
}
case VMEXIT_NPF: {
- addr_t fault_addr = guest_ctrl->exit_info2;
- pf_error_t * error_code = (pf_error_t *)&(guest_ctrl->exit_info1);
+ addr_t fault_addr = exit_info2;
+ pf_error_t * error_code = (pf_error_t *)&(exit_info1);
if (info->shdw_pg_mode == NESTED_PAGING) {
if (v3_handle_nested_pagefault(info, fault_addr, *error_code) == -1) {
PrintDebug("Unhandled SVM Exit: %s\n", vmexit_code_to_str(exit_code));
- rip_addr = get_addr_linear(info, guest_state->rip, &(info->segments.cs));
+ rip_addr = get_addr_linear(info, info->rip, &(info->segments.cs));
PrintError("SVM Returned:(VMCB=%p)\n", (void *)(info->vmm_data));
- PrintError("RIP: %p\n", (void *)(addr_t)(guest_state->rip));
+ PrintError("RIP: %p\n", (void *)(addr_t)(info->rip));
PrintError("RIP Linear: %p\n", (void *)(addr_t)(rip_addr));
PrintError("SVM Returned: Exit Code: %p\n", (void *)(addr_t)exit_code);
- 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));
+ PrintError("io_info1 low = 0x%.8x\n", *(uint_t*)&(exit_info1));
+ PrintError("io_info1 high = 0x%.8x\n", *(uint_t *)(((uchar_t *)&(exit_info1)) + 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));
+ PrintError("io_info2 low = 0x%.8x\n", *(uint_t*)&(exit_info2));
+ PrintError("io_info2 high = 0x%.8x\n", *(uint_t *)(((uchar_t *)&(exit_info2)) + 4));
if (info->shdw_pg_mode == SHADOW_PAGING) {
#endif
-
-#ifdef CONFIG_SYMBIOTIC
- v3_activate_sym_call(info);
-#endif
-
- guest_state->cr0 = info->ctrl_regs.cr0;
- guest_state->cr2 = info->ctrl_regs.cr2;
- guest_state->cr3 = info->ctrl_regs.cr3;
- guest_state->cr4 = info->ctrl_regs.cr4;
- guest_state->dr6 = info->dbg_regs.dr6;
- guest_state->dr7 = info->dbg_regs.dr7;
- guest_ctrl->guest_ctrl.V_TPR = info->ctrl_regs.cr8 & 0xff;
- guest_state->rflags = info->ctrl_regs.rflags;
- guest_state->efer = info->ctrl_regs.efer;
-
- guest_state->cpl = info->cpl;
-
- v3_set_vmcb_segments((vmcb_t*)(info->vmm_data), &(info->segments));
-
- guest_state->rax = info->vm_regs.rax;
- guest_state->rip = info->rip;
- guest_state->rsp = info->vm_regs.rsp;
-
-
-
-
- if (v3_excp_pending(info)) {
- uint_t excp = v3_get_excp_number(info);
-
- guest_ctrl->EVENTINJ.type = SVM_INJECTION_EXCEPTION;
-
- if (info->excp_state.excp_error_code_valid) {
- guest_ctrl->EVENTINJ.error_code = info->excp_state.excp_error_code;
- guest_ctrl->EVENTINJ.ev = 1;
-#ifdef CONFIG_DEBUG_INTERRUPTS
- PrintDebug("Injecting exception %d with error code %x\n", excp, guest_ctrl->EVENTINJ.error_code);
-#endif
- }
-
- guest_ctrl->EVENTINJ.vector = excp;
-
- guest_ctrl->EVENTINJ.valid = 1;
-
- PrintDebug("Injecting Exception %d (EIP=%p)\n",
- guest_ctrl->EVENTINJ.vector,
- (void *)(addr_t)info->rip);
-
-
-
-#ifdef CONFIG_DEBUG_INTERRUPTS
- PrintDebug("Injecting Exception %d (EIP=%p)\n",
- guest_ctrl->EVENTINJ.vector,
- (void *)(addr_t)info->rip);
-#endif
- v3_injecting_excp(info, excp);
-
-#ifdef CONFIG_SYMBIOTIC
- } else if (info->sym_state.call_active == 1) {
- // ignore interrupt injection if we just started a symcall
- PrintDebug("Symcall active\n");
- sym_started = 1;
-#endif
-
- } else if (info->intr_state.irq_started == 1) {
-#ifdef CONFIG_DEBUG_INTERRUPTS
- PrintDebug("IRQ pending from previous injection\n");
-#endif
- guest_ctrl->guest_ctrl.V_IRQ = 1;
- guest_ctrl->guest_ctrl.V_INTR_VECTOR = info->intr_state.irq_vector;
- guest_ctrl->guest_ctrl.V_IGN_TPR = 1;
- guest_ctrl->guest_ctrl.V_INTR_PRIO = 0xf;
-
- } else {
- switch (v3_intr_pending(info)) {
- case V3_EXTERNAL_IRQ: {
- uint32_t irq = v3_get_intr(info);
-
- guest_ctrl->guest_ctrl.V_IRQ = 1;
- 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 CONFIG_DEBUG_INTERRUPTS
- PrintDebug("Injecting Interrupt %d (EIP=%p)\n",
- guest_ctrl->guest_ctrl.V_INTR_VECTOR,
- (void *)(addr_t)info->rip);
-#endif
-
- info->intr_state.irq_pending = 1;
- info->intr_state.irq_vector = irq;
-
- break;
- }
- case V3_NMI:
- guest_ctrl->EVENTINJ.type = SVM_INJECTION_NMI;
- break;
- case V3_SOFTWARE_INTR:
- guest_ctrl->EVENTINJ.type = SVM_INJECTION_SOFT_INTR;
- break;
- case V3_VIRTUAL_IRQ:
- guest_ctrl->EVENTINJ.type = SVM_INJECTION_IRQ;
- break;
-
- case V3_INVALID_INTR:
- default:
- break;
- }
-
- }
-
-
-
if (exit_code == VMEXIT_INTR) {
//PrintDebug("INTR ret IP = %x\n", guest_state->rip);
}
