#include <palacios/vmx_assist.h>
#include <palacios/vmx_hw_info.h>
-#ifndef CONFIG_DEBUG_VMX
+#ifndef V3_CONFIG_DEBUG_VMX
#undef PrintDebug
#define PrintDebug(fmt, args...)
#endif
extern v3_cpu_arch_t v3_cpu_types[];
-static addr_t active_vmcs_ptrs[CONFIG_MAX_CPUS] = { [0 ... CONFIG_MAX_CPUS - 1] = 0};
-static addr_t host_vmcs_ptrs[CONFIG_MAX_CPUS] = { [0 ... CONFIG_MAX_CPUS - 1] = 0};
+static addr_t active_vmcs_ptrs[V3_CONFIG_MAX_CPUS] = { [0 ... V3_CONFIG_MAX_CPUS - 1] = 0};
+static addr_t host_vmcs_ptrs[V3_CONFIG_MAX_CPUS] = { [0 ... V3_CONFIG_MAX_CPUS - 1] = 0};
extern int v3_vmx_launch(struct v3_gprs * vm_regs, struct guest_info * info, struct v3_ctrl_regs * ctrl_regs);
extern int v3_vmx_resume(struct v3_gprs * vm_regs, struct guest_info * info, struct v3_ctrl_regs * ctrl_regs);
vmx_state->pri_proc_ctrls.pause_exit = 0;
vmx_state->pri_proc_ctrls.tsc_offset = 1;
-#ifdef CONFIG_TIME_VIRTUALIZE_TSC
+#ifdef V3_CONFIG_TIME_VIRTUALIZE_TSC
vmx_state->pri_proc_ctrls.rdtsc_exit = 1;
#endif
+
+
+
#ifdef __V3_64BIT__
vmx_state->exit_ctrls.host_64_on = 1;
#endif
-
/* Not sure how exactly to handle this... */
v3_hook_msr(core->vm_info, EFER_MSR,
&v3_handle_efer_read,
&v3_handle_efer_write,
core);
+ // Or is it this???
+ vmx_state->entry_ctrls.ld_efer = 1;
+ vmx_state->exit_ctrls.ld_efer = 1;
+ vmx_state->exit_ctrls.save_efer = 1;
+ /* *** */
vmx_ret |= check_vmcs_write(VMCS_CR4_MASK, CR4_VMXE);
-
/* Setup paging */
if (core->shdw_pg_mode == SHADOW_PAGING) {
PrintDebug("Creating initial shadow page table\n");
} else if ((core->shdw_pg_mode == NESTED_PAGING) &&
(v3_cpu_types[core->cpu_id] == V3_VMX_EPT_CPU)) {
- // initialize 1to1 pts
-
#define CR0_PE 0x00000001
#define CR0_PG 0x80000000
#define CR0_WP 0x00010000 // To ensure mem hooks work
/* Enable EPT */
vmx_state->pri_proc_ctrls.sec_ctrls = 1; // Enable secondary proc controls
vmx_state->sec_proc_ctrls.enable_ept = 1; // enable EPT paging
- // vmx_state->sec_proc_ctrls.unrstrct_guest = 1; // enable unrestricted guest operation
- vmx_state->entry_ctrls.ld_efer = 1;
- vmx_state->exit_ctrls.ld_efer = 1;
- vmx_state->exit_ctrls.save_efer = 1;
+
if (v3_init_ept(core, &hw_info) == -1) {
PrintError("Error initializing EPT\n");
return -1;
}
-
} else if ((core->shdw_pg_mode == NESTED_PAGING) &&
(v3_cpu_types[core->cpu_id] == V3_VMX_EPT_UG_CPU)) {
int i = 0;
vmx_state->sec_proc_ctrls.enable_ept = 1; // enable EPT paging
vmx_state->sec_proc_ctrls.unrstrct_guest = 1; // enable unrestricted guest operation
- vmx_state->entry_ctrls.ld_efer = 1;
- vmx_state->exit_ctrls.ld_efer = 1;
- vmx_state->exit_ctrls.save_efer = 1;
/* Disable shadow paging stuff */
vmx_state->pri_proc_ctrls.cr3_ld_exit = 0;
}
- // Hook the VMX msrs
+ // hook vmx msrs
// Setup SYSCALL/SYSENTER MSRs in load/store area
+
+ // save STAR, LSTAR, FMASK, KERNEL_GS_BASE MSRs in MSR load/store area
+ {
+#define IA32_STAR 0xc0000081
+#define IA32_LSTAR 0xc0000082
+#define IA32_FMASK 0xc0000084
+#define IA32_KERN_GS_BASE 0xc0000102
+#define IA32_CSTAR 0xc0000083 // Compatibility mode STAR (ignored for now... hopefully its not that important...)
+
+ int msr_ret = 0;
+
+ struct vmcs_msr_entry * exit_store_msrs = NULL;
+ struct vmcs_msr_entry * exit_load_msrs = NULL;
+ struct vmcs_msr_entry * entry_load_msrs = NULL;;
+ int max_msrs = (hw_info.misc_info.max_msr_cache_size + 1) * 4;
+
+ V3_Print("Setting up MSR load/store areas (max_msr_count=%d)\n", max_msrs);
+
+ if (max_msrs < 4) {
+ PrintError("Max MSR cache size is too small (%d)\n", max_msrs);
+ return -1;
+ }
+
+ vmx_state->msr_area = V3_VAddr(V3_AllocPages(1));
+
+ if (vmx_state->msr_area == NULL) {
+ PrintError("could not allocate msr load/store area\n");
+ return -1;
+ }
+
+ msr_ret |= check_vmcs_write(VMCS_EXIT_MSR_STORE_CNT, 4);
+ msr_ret |= check_vmcs_write(VMCS_EXIT_MSR_LOAD_CNT, 4);
+ msr_ret |= check_vmcs_write(VMCS_ENTRY_MSR_LOAD_CNT, 4);
+
+
+ exit_store_msrs = (struct vmcs_msr_entry *)(vmx_state->msr_area);
+ exit_load_msrs = (struct vmcs_msr_entry *)(vmx_state->msr_area + (sizeof(struct vmcs_msr_entry) * 4));
+ entry_load_msrs = (struct vmcs_msr_entry *)(vmx_state->msr_area + (sizeof(struct vmcs_msr_entry) * 8));
+
+
+ exit_store_msrs[0].index = IA32_STAR;
+ exit_store_msrs[1].index = IA32_LSTAR;
+ exit_store_msrs[2].index = IA32_FMASK;
+ exit_store_msrs[3].index = IA32_KERN_GS_BASE;
+
+ memcpy(exit_store_msrs, exit_load_msrs, sizeof(struct vmcs_msr_entry) * 4);
+ memcpy(exit_store_msrs, entry_load_msrs, sizeof(struct vmcs_msr_entry) * 4);
+
+
+ v3_get_msr(IA32_STAR, &(exit_load_msrs[0].hi), &(exit_load_msrs[0].lo));
+ v3_get_msr(IA32_LSTAR, &(exit_load_msrs[1].hi), &(exit_load_msrs[1].lo));
+ v3_get_msr(IA32_FMASK, &(exit_load_msrs[2].hi), &(exit_load_msrs[2].lo));
+ v3_get_msr(IA32_KERN_GS_BASE, &(exit_load_msrs[3].hi), &(exit_load_msrs[3].lo));
+
+ msr_ret |= check_vmcs_write(VMCS_EXIT_MSR_STORE_ADDR, (addr_t)V3_PAddr(exit_store_msrs));
+ msr_ret |= check_vmcs_write(VMCS_EXIT_MSR_LOAD_ADDR, (addr_t)V3_PAddr(exit_load_msrs));
+ msr_ret |= check_vmcs_write(VMCS_ENTRY_MSR_LOAD_ADDR, (addr_t)V3_PAddr(entry_load_msrs));
+
+ }
/* Sanity check ctrl/reg fields against hw_defaults */
if (vm_class == V3_PC_VM) {
PrintDebug("Initializing VMCS\n");
- init_vmcs_bios(core, vmx_state);
+ if (init_vmcs_bios(core, vmx_state) == -1) {
+ PrintError("Error initializing VMCS to BIOS state\n");
+ return -1;
+ }
} else {
PrintError("Invalid VM Class\n");
return -1;
struct vmx_data * vmx_state = core->vmm_data;
V3_FreePages((void *)(vmx_state->vmcs_ptr_phys), 1);
+ V3_FreePages(vmx_state->msr_area, 1);
V3_Free(vmx_state);
check_vmcs_read(VMCS_IDT_VECTOR_INFO, &(idt_vec_info.value));
if ((info->intr_core_state.irq_started == 1) && (idt_vec_info.valid == 0)) {
-#ifdef CONFIG_DEBUG_INTERRUPTS
- PrintDebug("Calling v3_injecting_intr\n");
+#ifdef V3_CONFIG_DEBUG_INTERRUPTS
+ V3_Print("Calling v3_injecting_intr\n");
#endif
info->intr_core_state.irq_started = 0;
v3_injecting_intr(info, info->intr_core_state.irq_vector, V3_EXTERNAL_IRQ);
check_vmcs_write(VMCS_ENTRY_EXCP_ERR, info->excp_state.excp_error_code);
int_info.error_code = 1;
-#ifdef CONFIG_DEBUG_INTERRUPTS
- PrintDebug("Injecting exception %d with error code %x\n",
+#ifdef V3_CONFIG_DEBUG_INTERRUPTS
+ V3_Print("Injecting exception %d with error code %x\n",
int_info.vector, info->excp_state.excp_error_code);
#endif
}
int_info.valid = 1;
-#ifdef CONFIG_DEBUG_INTERRUPTS
- PrintDebug("Injecting exception %d (EIP=%p)\n", int_info.vector, (void *)(addr_t)info->rip);
+#ifdef V3_CONFIG_DEBUG_INTERRUPTS
+ V3_Print("Injecting exception %d (EIP=%p)\n", int_info.vector, (void *)(addr_t)info->rip);
#endif
check_vmcs_write(VMCS_ENTRY_INT_INFO, int_info.value);
if ((info->intr_core_state.irq_started == 1) && (idt_vec_info.valid == 1)) {
-#ifdef CONFIG_DEBUG_INTERRUPTS
- PrintDebug("IRQ pending from previous injection\n");
+#ifdef V3_CONFIG_DEBUG_INTERRUPTS
+ V3_Print("IRQ pending from previous injection\n");
#endif
// Copy the IDT vectoring info over to reinject the old interrupt
ent_int.error_code = 0;
ent_int.valid = 1;
-#ifdef CONFIG_DEBUG_INTERRUPTS
- PrintDebug("Injecting Interrupt %d at exit %u(EIP=%p)\n",
+#ifdef V3_CONFIG_DEBUG_INTERRUPTS
+ V3_Print("Injecting Interrupt %d at exit %u(EIP=%p)\n",
info->intr_core_state.irq_vector,
(uint32_t)info->num_exits,
(void *)(addr_t)info->rip);
check_vmcs_read(VMCS_EXIT_INSTR_LEN, &instr_len);
-#ifdef CONFIG_DEBUG_INTERRUPTS
- PrintDebug("Enabling Interrupt-Window exiting: %d\n", instr_len);
+#ifdef V3_CONFIG_DEBUG_INTERRUPTS
+ V3_Print("Enabling Interrupt-Window exiting: %d\n", instr_len);
#endif
vmx_info->pri_proc_ctrls.int_wndw_exit = 1;
v3_vmx_restore_vmcs(info);
-#ifdef CONFIG_SYMCALL
+#ifdef V3_CONFIG_SYMCALL
if (info->sym_core_state.symcall_state.sym_call_active == 0) {
update_irq_entry_state(info);
}
check_vmcs_write(VMCS_TSC_OFFSET_HIGH, tsc_offset_high);
check_vmcs_write(VMCS_TSC_OFFSET, tsc_offset_low);
+ if (v3_update_vmcs_host_state(info)) {
+ v3_enable_ints();
+ PrintError("Could not write host state\n");
+ return -1;
+ }
+
if (vmx_info->state == VMX_UNLAUNCHED) {
vmx_info->state = VMX_LAUNCHED;
uint32_t error = 0;
vmcs_read(VMCS_INSTR_ERR, &error);
- PrintError("VMENTRY Error: %d\n", error);
+ v3_enable_ints();
+
+ PrintError("VMENTRY Error: %d\n", error);
return -1;
}
exit_log[info->num_exits % 10] = exit_info;
-#ifdef CONFIG_SYMCALL
+#ifdef V3_CONFIG_SYMCALL
if (info->sym_core_state.symcall_state.sym_call_active == 0) {
update_irq_exit_state(info);
}
vmx_info->pri_proc_ctrls.int_wndw_exit = 0;
vmcs_write(VMCS_PROC_CTRLS, vmx_info->pri_proc_ctrls.value);
-#ifdef CONFIG_DEBUG_INTERRUPTS
- PrintDebug("Interrupts available again! (RIP=%llx)\n", info->rip);
+#ifdef V3_CONFIG_DEBUG_INTERRUPTS
+ V3_Print("Interrupts available again! (RIP=%llx)\n", info->rip);
#endif
}
