X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fpalacios%2Fvmcs.c;h=4262aa8bb88d3a1cb155d23ad42e5ac8c4596e31;hb=c5ba903ae97ea49bbac5b660f76d2031c5302a3d;hp=9e5bd7746fd877a53f21d0f7bc251a94381bf84a;hpb=feae9dcec518f57049429ee391f903745cb04749;p=palacios.git diff --git a/palacios/src/palacios/vmcs.c b/palacios/src/palacios/vmcs.c index 9e5bd77..4262aa8 100644 --- a/palacios/src/palacios/vmcs.c +++ b/palacios/src/palacios/vmcs.c @@ -24,6 +24,7 @@ #include #include #include +#include @@ -34,7 +35,7 @@ static int inline check_vmcs_write(vmcs_field_t field, addr_t val) { ret = vmcs_write(field, val); if (ret != VMX_SUCCESS) { - PrintError("VMWRITE error on %s!: %d\n", v3_vmcs_field_to_str(field), ret); + PrintError(VM_NONE, VCORE_NONE, "VMWRITE error on %s!: %d\n", v3_vmcs_field_to_str(field), ret); return 1; } @@ -46,7 +47,7 @@ static int inline check_vmcs_read(vmcs_field_t field, void * val) { ret = vmcs_read(field, val); if (ret != VMX_SUCCESS) { - PrintError("VMREAD error on %s!: %d\n", v3_vmcs_field_to_str(field), ret); + PrintError(VM_NONE, VCORE_NONE, "VMREAD error on %s!: %d\n", v3_vmcs_field_to_str(field), ret); } return ret; @@ -227,17 +228,37 @@ int v3_vmx_save_vmcs(struct guest_info * info) { check_vmcs_read(VMCS_CR0_READ_SHDW, &(info->shdw_pg_state.guest_cr0)); check_vmcs_read(VMCS_GUEST_CR3, &(info->ctrl_regs.cr3)); check_vmcs_read(VMCS_GUEST_CR4, &(info->ctrl_regs.cr4)); - check_vmcs_read(VMCS_CR4_READ_SHDW, &(vmx_info->guest_cr4)); + check_vmcs_read(VMCS_CR4_READ_SHDW, &(info->shdw_pg_state.guest_cr4)); check_vmcs_read(VMCS_GUEST_DR7, &(info->dbg_regs.dr7)); check_vmcs_read(VMCS_GUEST_RFLAGS, &(info->ctrl_regs.rflags)); #ifdef __V3_64BIT__ check_vmcs_read(VMCS_GUEST_EFER, &(info->ctrl_regs.efer)); + check_vmcs_read(VMCS_ENTRY_CTRLS, &(vmx_info->entry_ctrls.value)); #endif error = v3_read_vmcs_segments(&(info->segments)); + /* Save MSRs from MSR SAVE Area (whereever that is...)*/ + + info->msrs.star = vmx_info->msr_area->guest_star.hi; + info->msrs.star <<= 32; + info->msrs.star |= vmx_info->msr_area->guest_star.lo; + + info->msrs.lstar = vmx_info->msr_area->guest_lstar.hi; + info->msrs.lstar <<= 32; + info->msrs.lstar |= vmx_info->msr_area->guest_lstar.lo; + + info->msrs.sfmask = vmx_info->msr_area->guest_fmask.hi; + info->msrs.sfmask <<= 32; + info->msrs.sfmask |= vmx_info->msr_area->guest_fmask.lo; + + info->msrs.kern_gs_base = vmx_info->msr_area->guest_kern_gs.hi; + info->msrs.kern_gs_base <<= 32; + info->msrs.kern_gs_base |= vmx_info->msr_area->guest_kern_gs.lo; + + return error; } @@ -260,12 +281,24 @@ int v3_vmx_restore_vmcs(struct guest_info * info) { #ifdef __V3_64BIT__ check_vmcs_write(VMCS_GUEST_EFER, info->ctrl_regs.efer); + check_vmcs_write(VMCS_ENTRY_CTRLS, vmx_info->entry_ctrls.value); #endif + error = v3_write_vmcs_segments(&(info->segments)); + /* Restore MSRs from MSR SAVE Area (whereever that is...)*/ + vmx_info->msr_area->guest_star.hi = (info->msrs.star >> 32); + vmx_info->msr_area->guest_star.lo = (info->msrs.star & 0xffffffff); - error = v3_write_vmcs_segments(&(info->segments)); + vmx_info->msr_area->guest_lstar.hi = (info->msrs.lstar >> 32); + vmx_info->msr_area->guest_lstar.lo = (info->msrs.lstar & 0xffffffff); + + vmx_info->msr_area->guest_fmask.hi = (info->msrs.sfmask >> 32); + vmx_info->msr_area->guest_fmask.lo = (info->msrs.sfmask & 0xffffffff); + + vmx_info->msr_area->guest_kern_gs.hi = (info->msrs.kern_gs_base >> 32); + vmx_info->msr_area->guest_kern_gs.lo = (info->msrs.kern_gs_base & 0xffffffff); return error; @@ -276,8 +309,12 @@ int v3_vmx_restore_vmcs(struct guest_info * info) { int v3_update_vmcs_host_state(struct guest_info * info) { int vmx_ret = 0; addr_t tmp; - struct vmx_data * arch_data = (struct vmx_data *)(info->vmm_data); struct v3_msr tmp_msr; + addr_t gdtr_base; + struct { + uint16_t selector; + addr_t base; + } __attribute__((packed)) tmp_seg; #ifdef __V3_64BIT__ __asm__ __volatile__ ( "movq %%cr0, %0; " @@ -321,12 +358,48 @@ int v3_update_vmcs_host_state(struct guest_info * info) { vmx_ret |= check_vmcs_write(VMCS_HOST_CR4, tmp); + __asm__ __volatile__( + "sgdt (%0);" + : + : "q"(&tmp_seg) + : "memory" + ); + gdtr_base = tmp_seg.base; + vmx_ret |= check_vmcs_write(VMCS_HOST_GDTR_BASE, tmp_seg.base); + + __asm__ __volatile__( + "sidt (%0);" + : + : "q"(&tmp_seg) + : "memory" + ); + vmx_ret |= check_vmcs_write(VMCS_HOST_IDTR_BASE, tmp_seg.base); + + __asm__ __volatile__( + "str (%0);" + : + : "q"(&tmp_seg) + : "memory" + ); + vmx_ret |= check_vmcs_write(VMCS_HOST_TR_SELECTOR, tmp_seg.selector); + + /* The GDTR *index* is bits 3-15 of the selector. */ + { + struct tss_descriptor * desc = NULL; + desc = (struct tss_descriptor *)(gdtr_base + (8 * (tmp_seg.selector >> 3))); + + tmp_seg.base = ((desc->base1) | + (desc->base2 << 16) | + (desc->base3 << 24) | +#ifdef __V3_64BIT__ + ((uint64_t)desc->base4 << 32) +#else + (0) +#endif + ); - vmx_ret |= check_vmcs_write(VMCS_HOST_GDTR_BASE, arch_data->host_state.gdtr.base); - vmx_ret |= check_vmcs_write(VMCS_HOST_IDTR_BASE, arch_data->host_state.idtr.base); - vmx_ret |= check_vmcs_write(VMCS_HOST_TR_BASE, arch_data->host_state.tr.base); - - + vmx_ret |= check_vmcs_write(VMCS_HOST_TR_BASE, tmp_seg.base); + } #ifdef __V3_64BIT__ @@ -407,8 +480,6 @@ int v3_update_vmcs_host_state(struct guest_info * info) { #endif vmx_ret |= check_vmcs_write(VMCS_HOST_GS_SELECTOR, tmp); - vmx_ret |= check_vmcs_write(VMCS_HOST_TR_SELECTOR, arch_data->host_state.tr.selector); - #define SYSENTER_CS_MSR 0x00000174 #define SYSENTER_ESP_MSR 0x00000175 @@ -448,10 +519,21 @@ int v3_update_vmcs_host_state(struct guest_info * info) { // PAT + v3_get_msr(IA32_PAT_MSR, &(tmp_msr.hi), &(tmp_msr.lo)); + vmx_ret |= check_vmcs_write(VMCS_HOST_PAT, tmp_msr.value); + // save STAR, LSTAR, FMASK, KERNEL_GS_BASE MSRs in MSR load/store area + { + struct vmx_data * vmx_state = (struct vmx_data *)info->vmm_data; + struct vmcs_msr_save_area * msr_entries = vmx_state->msr_area; + v3_get_msr(IA32_STAR_MSR, &(msr_entries->host_star.hi), &(msr_entries->host_star.lo)); + v3_get_msr(IA32_LSTAR_MSR, &(msr_entries->host_lstar.hi), &(msr_entries->host_lstar.lo)); + v3_get_msr(IA32_FMASK_MSR, &(msr_entries->host_fmask.hi), &(msr_entries->host_fmask.lo)); + v3_get_msr(IA32_KERN_GS_BASE_MSR, &(msr_entries->host_kern_gs.hi), &(msr_entries->host_kern_gs.lo)); + } @@ -470,16 +552,16 @@ static inline void print_vmcs_field(vmcs_field_t vmcs_index) { addr_t val; if (vmcs_read(vmcs_index, &val) != VMX_SUCCESS) { - PrintError("VMCS_READ error for %s\n", v3_vmcs_field_to_str(vmcs_index)); + PrintError(VM_NONE, VCORE_NONE, "VMCS_READ error for %s\n", v3_vmcs_field_to_str(vmcs_index)); return; }; if (len == 2) { - PrintDebug("\t%s: 0x%.4x\n", v3_vmcs_field_to_str(vmcs_index), (uint16_t)val); + PrintDebug(VM_NONE, VCORE_NONE, "\t%s: 0x%.4x\n", v3_vmcs_field_to_str(vmcs_index), (uint16_t)val); } else if (len == 4) { - PrintDebug("\t%s: 0x%.8x\n", v3_vmcs_field_to_str(vmcs_index), (uint32_t)val); + PrintDebug(VM_NONE, VCORE_NONE, "\t%s: 0x%.8x\n", v3_vmcs_field_to_str(vmcs_index), (uint32_t)val); } else if (len == 8) { - PrintDebug("\t%s: 0x%p\n", v3_vmcs_field_to_str(vmcs_index), (void *)(addr_t)val); + PrintDebug(VM_NONE, VCORE_NONE, "\t%s: 0x%p\n", v3_vmcs_field_to_str(vmcs_index), (void *)(addr_t)val); } } @@ -491,59 +573,59 @@ static void print_vmcs_segments() { v3_print_segments(&segs); - PrintDebug(" ==> CS\n"); + PrintDebug(VM_NONE, VCORE_NONE, " ==> CS\n"); print_vmcs_field(VMCS_GUEST_CS_SELECTOR); print_vmcs_field(VMCS_GUEST_CS_BASE); print_vmcs_field(VMCS_GUEST_CS_LIMIT); print_vmcs_field(VMCS_GUEST_CS_ACCESS); - PrintDebug(" ==> SS\n"); + PrintDebug(VM_NONE, VCORE_NONE, " ==> SS\n"); print_vmcs_field(VMCS_GUEST_SS_SELECTOR); print_vmcs_field(VMCS_GUEST_SS_BASE); print_vmcs_field(VMCS_GUEST_SS_LIMIT); print_vmcs_field(VMCS_GUEST_SS_ACCESS); - PrintDebug(" ==> DS\n"); + PrintDebug(VM_NONE, VCORE_NONE, " ==> DS\n"); print_vmcs_field(VMCS_GUEST_DS_SELECTOR); print_vmcs_field(VMCS_GUEST_DS_BASE); print_vmcs_field(VMCS_GUEST_DS_LIMIT); print_vmcs_field(VMCS_GUEST_DS_ACCESS); - PrintDebug(" ==> ES\n"); + PrintDebug(VM_NONE, VCORE_NONE, " ==> ES\n"); print_vmcs_field(VMCS_GUEST_ES_SELECTOR); print_vmcs_field(VMCS_GUEST_ES_BASE); print_vmcs_field(VMCS_GUEST_ES_LIMIT); print_vmcs_field(VMCS_GUEST_ES_ACCESS); - PrintDebug(" ==> FS\n"); + PrintDebug(VM_NONE, VCORE_NONE, " ==> FS\n"); print_vmcs_field(VMCS_GUEST_FS_SELECTOR); print_vmcs_field(VMCS_GUEST_FS_BASE); print_vmcs_field(VMCS_GUEST_FS_LIMIT); print_vmcs_field(VMCS_GUEST_FS_ACCESS); - PrintDebug(" ==> GS\n"); + PrintDebug(VM_NONE, VCORE_NONE, " ==> GS\n"); print_vmcs_field(VMCS_GUEST_GS_SELECTOR); print_vmcs_field(VMCS_GUEST_GS_BASE); print_vmcs_field(VMCS_GUEST_GS_LIMIT); print_vmcs_field(VMCS_GUEST_GS_ACCESS); - PrintDebug(" ==> LDTR\n"); + PrintDebug(VM_NONE, VCORE_NONE, " ==> LDTR\n"); print_vmcs_field(VMCS_GUEST_LDTR_SELECTOR); print_vmcs_field(VMCS_GUEST_LDTR_BASE); print_vmcs_field(VMCS_GUEST_LDTR_LIMIT); print_vmcs_field(VMCS_GUEST_LDTR_ACCESS); - PrintDebug(" ==> TR\n"); + PrintDebug(VM_NONE, VCORE_NONE, " ==> TR\n"); print_vmcs_field(VMCS_GUEST_TR_SELECTOR); print_vmcs_field(VMCS_GUEST_TR_BASE); print_vmcs_field(VMCS_GUEST_TR_LIMIT); print_vmcs_field(VMCS_GUEST_TR_ACCESS); - PrintDebug(" ==> GDTR\n"); + PrintDebug(VM_NONE, VCORE_NONE, " ==> GDTR\n"); print_vmcs_field(VMCS_GUEST_GDTR_BASE); print_vmcs_field(VMCS_GUEST_GDTR_LIMIT); - PrintDebug(" ==> IDTR\n"); + PrintDebug(VM_NONE, VCORE_NONE, " ==> IDTR\n"); print_vmcs_field(VMCS_GUEST_IDTR_BASE); print_vmcs_field(VMCS_GUEST_IDTR_LIMIT); @@ -555,7 +637,7 @@ static void print_vmcs_segments() { static void print_guest_state() { - PrintDebug("VMCS_GUEST_STATE\n"); + PrintDebug(VM_NONE, VCORE_NONE, "VMCS_GUEST_STATE\n"); print_vmcs_field(VMCS_GUEST_RIP); print_vmcs_field(VMCS_GUEST_RSP); print_vmcs_field(VMCS_GUEST_RFLAGS); @@ -571,11 +653,11 @@ static void print_guest_state() #endif - PrintDebug("\n"); + PrintDebug(VM_NONE, VCORE_NONE, "\n"); print_vmcs_segments(); - PrintDebug("\n"); + PrintDebug(VM_NONE, VCORE_NONE, "\n"); print_vmcs_field(VMCS_GUEST_DBG_CTL); #ifdef __V3_32BIT__ @@ -603,7 +685,7 @@ static void print_guest_state() - PrintDebug("GUEST_NON_REGISTER_STATE\n"); + PrintDebug(VM_NONE, VCORE_NONE, "GUEST_NON_REGISTER_STATE\n"); print_vmcs_field(VMCS_GUEST_ACTIVITY_STATE); print_vmcs_field(VMCS_GUEST_INT_STATE); @@ -616,7 +698,7 @@ static void print_guest_state() static void print_host_state() { - PrintDebug("VMCS_HOST_STATE\n"); + PrintDebug(VM_NONE, VCORE_NONE, "VMCS_HOST_STATE\n"); print_vmcs_field(VMCS_HOST_RIP); print_vmcs_field(VMCS_HOST_RSP); @@ -633,7 +715,7 @@ static void print_host_state() #endif - PrintDebug("\n"); + PrintDebug(VM_NONE, VCORE_NONE, "\n"); print_vmcs_field(VMCS_HOST_CS_SELECTOR); print_vmcs_field(VMCS_HOST_SS_SELECTOR); print_vmcs_field(VMCS_HOST_DS_SELECTOR); @@ -642,14 +724,14 @@ static void print_host_state() print_vmcs_field(VMCS_HOST_GS_SELECTOR); print_vmcs_field(VMCS_HOST_TR_SELECTOR); - PrintDebug("\n"); + PrintDebug(VM_NONE, VCORE_NONE, "\n"); print_vmcs_field(VMCS_HOST_FS_BASE); print_vmcs_field(VMCS_HOST_GS_BASE); print_vmcs_field(VMCS_HOST_TR_BASE); print_vmcs_field(VMCS_HOST_GDTR_BASE); print_vmcs_field(VMCS_HOST_IDTR_BASE); - PrintDebug("\n"); + PrintDebug(VM_NONE, VCORE_NONE, "\n"); print_vmcs_field(VMCS_HOST_SYSENTER_CS); print_vmcs_field(VMCS_HOST_SYSENTER_ESP); print_vmcs_field(VMCS_HOST_SYSENTER_EIP); @@ -670,7 +752,7 @@ static void print_host_state() static void print_exec_ctrls() { - PrintDebug("VMCS_EXEC_CTRL_FIELDS\n"); + PrintDebug(VM_NONE, VCORE_NONE, "VMCS_EXEC_CTRL_FIELDS\n"); print_vmcs_field(VMCS_PIN_CTRLS); print_vmcs_field(VMCS_PROC_CTRLS); @@ -696,7 +778,7 @@ static void print_exec_ctrls() { print_vmcs_field(VMCS_TSC_OFFSET_HIGH); #endif - PrintDebug("\n"); + PrintDebug(VM_NONE, VCORE_NONE, "\n"); print_vmcs_field(VMCS_CR0_MASK); print_vmcs_field(VMCS_CR0_READ_SHDW); @@ -712,7 +794,7 @@ static void print_exec_ctrls() { // Check max number of CR3 targets... may continue... - PrintDebug("\n"); + PrintDebug(VM_NONE, VCORE_NONE, "\n"); // if virtualize apic accesses print_vmcs_field(VMCS_APIC_ACCESS_ADDR); @@ -745,7 +827,7 @@ static void print_exec_ctrls() { } static void print_ept_state() { - V3_Print("VMCS EPT INFO\n"); + V3_Print(VM_NONE, VCORE_NONE, "VMCS EPT INFO\n"); // if enable vpid print_vmcs_field(VMCS_VPID); @@ -788,7 +870,7 @@ static void print_ept_state() { static void print_exit_ctrls() { - PrintDebug("VMCS_EXIT_CTRLS\n"); + PrintDebug(VM_NONE, VCORE_NONE, "VMCS_EXIT_CTRLS\n"); print_vmcs_field(VMCS_EXIT_CTRLS); @@ -814,7 +896,7 @@ static void print_exit_ctrls() { static void print_entry_ctrls() { - PrintDebug("VMCS_ENTRY_CTRLS\n"); + PrintDebug(VM_NONE, VCORE_NONE, "VMCS_ENTRY_CTRLS\n"); print_vmcs_field(VMCS_ENTRY_CTRLS); @@ -833,7 +915,7 @@ static void print_entry_ctrls() { static void print_exit_info() { - PrintDebug("VMCS_EXIT_INFO\n"); + PrintDebug(VM_NONE, VCORE_NONE, "VMCS_EXIT_INFO\n"); print_vmcs_field(VMCS_EXIT_REASON); print_vmcs_field(VMCS_EXIT_QUAL); @@ -900,7 +982,7 @@ int v3_vmcs_get_field_len(vmcs_field_t field) { case 3: return sizeof(addr_t); default: - PrintError("Invalid VMCS field: 0x%x\n", field); + PrintError(VM_NONE, VCORE_NONE, "Invalid VMCS field: 0x%x\n", field); return -1; } }