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SVM rework 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4605 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2008-05-28 16:16:54 +00:00
parent 893f986502
commit 872929aa59
8 changed files with 384 additions and 479 deletions
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1
cpu-exec.c
View File

@ -171,7 +171,6 @@ static inline TranslationBlock *tb_find_fast(void)
#if defined(TARGET_I386)
flags = env->hflags;
flags |= (env->eflags & (IOPL_MASK | TF_MASK | VM_MASK));
flags |= env->intercept;
cs_base = env->segs[R_CS].base;
pc = cs_base + env->eip;
#elif defined(TARGET_ARM)

4
target-i386/TODO
View File

@ -1,9 +1,7 @@
Correctness issues:
- some eflags manipulation incorrectly reset the bit 0x2.
- SVM: rework the implementation: simplify code, move most intercept
tests as dynamic, correct segment access, verify exception safety,
cpu save/restore, SMM save/restore.
- SVM: test, cpu save/restore, SMM save/restore.
- x86_64: lcall/ljmp intel/amd differences ?
- better code fetch (different exception handling + CS.limit support)
- user/kernel PUSHL/POPL in helper.c

6
target-i386/cpu.h
View File

@ -149,6 +149,8 @@
#define HF_GIF_SHIFT 20 /* if set CPU takes interrupts */
#define HF_HIF_SHIFT 21 /* shadow copy of IF_MASK when in SVM */
#define HF_NMI_SHIFT 22 /* CPU serving NMI */
#define HF_SVME_SHIFT 23 /* SVME enabled (copy of EFER.SVME */
#define HF_SVMI_SHIFT 24 /* SVM intercepts are active */
#define HF_CPL_MASK (3 << HF_CPL_SHIFT)
#define HF_SOFTMMU_MASK (1 << HF_SOFTMMU_SHIFT)
@ -169,6 +171,8 @@
#define HF_GIF_MASK (1 << HF_GIF_SHIFT)
#define HF_HIF_MASK (1 << HF_HIF_SHIFT)
#define HF_NMI_MASK (1 << HF_NMI_SHIFT)
#define HF_SVME_MASK (1 << HF_SVME_SHIFT)
#define HF_SVMI_MASK (1 << HF_SVMI_SHIFT)
#define CR0_PE_MASK (1 << 0)
#define CR0_MP_MASK (1 << 1)
@ -242,6 +246,7 @@
#define MSR_EFER_LME (1 << 8)
#define MSR_EFER_LMA (1 << 10)
#define MSR_EFER_NXE (1 << 11)
#define MSR_EFER_SVME (1 << 12)
#define MSR_EFER_FFXSR (1 << 14)
#define MSR_STAR 0xc0000081
@ -322,6 +327,7 @@
#define CPUID_EXT3_3DNOWPREFETCH (1 << 8)
#define CPUID_EXT3_OSVW (1 << 9)
#define CPUID_EXT3_IBS (1 << 10)
#define CPUID_EXT3_SKINIT (1 << 12)
#define EXCP00_DIVZ 0
#define EXCP01_SSTP 1

9
target-i386/helper.c
View File

@ -1096,16 +1096,15 @@ int cpu_x86_handle_mmu_fault(CPUX86State *env, target_ulong addr,
(env->efer & MSR_EFER_NXE) &&
(env->cr[4] & CR4_PAE_MASK))
error_code |= PG_ERROR_I_D_MASK;
if (INTERCEPTEDl(_exceptions, 1 << EXCP0E_PAGE)) {
stq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_info_2), addr);
if (env->intercept_exceptions & (1 << EXCP0E_PAGE)) {
/* cr2 is not modified in case of exceptions */
stq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_info_2),
addr);
} else {
env->cr[2] = addr;
}
env->error_code = error_code;
env->exception_index = EXCP0E_PAGE;
/* the VMM will handle this */
if (INTERCEPTEDl(_exceptions, 1 << EXCP0E_PAGE))
return 2;
return 1;
}

3
target-i386/helper.h
View File

@ -43,7 +43,8 @@ DEF_HELPER(void, helper_lcall_protected, (int new_cs, target_ulong new_eip,
DEF_HELPER(void, helper_iret_real, (int shift))
DEF_HELPER(void, helper_iret_protected, (int shift, int next_eip))
DEF_HELPER(void, helper_lret_protected, (int shift, int addend))
DEF_HELPER(void, helper_movl_crN_T0, (int reg, target_ulong t0))
DEF_HELPER(target_ulong, helper_read_crN, (int reg))
DEF_HELPER(void, helper_write_crN, (int reg, target_ulong t0))
DEF_HELPER(void, helper_lmsw, (target_ulong t0))
DEF_HELPER(void, helper_clts, (void))
#if !defined(CONFIG_USER_ONLY)

303
target-i386/op_helper.c
View File

@ -625,18 +625,7 @@ static void do_interrupt_protected(int intno, int is_int, int error_code,
int has_error_code, new_stack, shift;
uint32_t e1, e2, offset, ss, esp, ss_e1, ss_e2;
uint32_t old_eip, sp_mask;
int svm_should_check = 1;
if ((env->intercept & INTERCEPT_SVM_MASK) && !is_int && next_eip==-1) {
next_eip = EIP;
svm_should_check = 0;
}
if (svm_should_check
&& (INTERCEPTEDl(_exceptions, 1 << intno)
&& !is_int)) {
raise_interrupt(intno, is_int, error_code, 0);
}
has_error_code = 0;
if (!is_int && !is_hw) {
switch(intno) {
@ -872,17 +861,7 @@ static void do_interrupt64(int intno, int is_int, int error_code,
int has_error_code, new_stack;
uint32_t e1, e2, e3, ss;
target_ulong old_eip, esp, offset;
int svm_should_check = 1;
if ((env->intercept & INTERCEPT_SVM_MASK) && !is_int && next_eip==-1) {
next_eip = EIP;
svm_should_check = 0;
}
if (svm_should_check
&& INTERCEPTEDl(_exceptions, 1 << intno)
&& !is_int) {
raise_interrupt(intno, is_int, error_code, 0);
}
has_error_code = 0;
if (!is_int && !is_hw) {
switch(intno) {
@ -1139,17 +1118,7 @@ static void do_interrupt_real(int intno, int is_int, int error_code,
int selector;
uint32_t offset, esp;
uint32_t old_cs, old_eip;
int svm_should_check = 1;
if ((env->intercept & INTERCEPT_SVM_MASK) && !is_int && next_eip==-1) {
next_eip = EIP;
svm_should_check = 0;
}
if (svm_should_check
&& INTERCEPTEDl(_exceptions, 1 << intno)
&& !is_int) {
raise_interrupt(intno, is_int, error_code, 0);
}
/* real mode (simpler !) */
dt = &env->idt;
if (intno * 4 + 3 > dt->limit)
@ -1307,6 +1276,8 @@ void raise_interrupt(int intno, int is_int, int error_code,
if (!is_int) {
helper_svm_check_intercept_param(SVM_EXIT_EXCP_BASE + intno, error_code);
intno = check_exception(intno, &error_code);
} else {
helper_svm_check_intercept_param(SVM_EXIT_SWINT, 0);
}
env->exception_index = intno;
@ -1316,18 +1287,6 @@ void raise_interrupt(int intno, int is_int, int error_code,
cpu_loop_exit();
}
/* same as raise_exception_err, but do not restore global registers */
static void raise_exception_err_norestore(int exception_index, int error_code)
{
exception_index = check_exception(exception_index, &error_code);
env->exception_index = exception_index;
env->error_code = error_code;
env->exception_is_int = 0;
env->exception_next_eip = 0;
longjmp(env->jmp_env, 1);
}
/* shortcuts to generate exceptions */
void (raise_exception_err)(int exception_index, int error_code)
@ -1921,8 +1880,10 @@ void helper_single_step(void)
void helper_cpuid(void)
{
uint32_t index;
index = (uint32_t)EAX;
helper_svm_check_intercept_param(SVM_EXIT_CPUID, 0);
index = (uint32_t)EAX;
/* test if maximum index reached */
if (index & 0x80000000) {
if (index > env->cpuid_xlevel)
@ -2957,9 +2918,35 @@ void helper_sysexit(void)
#endif
}
void helper_movl_crN_T0(int reg, target_ulong t0)
#if defined(CONFIG_USER_ONLY)
target_ulong helper_read_crN(int reg)
{
#if !defined(CONFIG_USER_ONLY)
return 0;
}
void helper_write_crN(int reg, target_ulong t0)
{
}
#else
target_ulong helper_read_crN(int reg)
{
target_ulong val;
helper_svm_check_intercept_param(SVM_EXIT_READ_CR0 + reg, 0);
switch(reg) {
default:
val = env->cr[reg];
break;
case 8:
val = cpu_get_apic_tpr(env);
break;
}
return val;
}
void helper_write_crN(int reg, target_ulong t0)
{
helper_svm_check_intercept_param(SVM_EXIT_WRITE_CR0 + reg, 0);
switch(reg) {
case 0:
cpu_x86_update_cr0(env, t0);
@ -2978,15 +2965,15 @@ void helper_movl_crN_T0(int reg, target_ulong t0)
env->cr[reg] = t0;
break;
}
#endif
}
#endif
void helper_lmsw(target_ulong t0)
{
/* only 4 lower bits of CR0 are modified. PE cannot be set to zero
if already set to one. */
t0 = (env->cr[0] & ~0xe) | (t0 & 0xf);
helper_movl_crN_T0(0, t0);
helper_write_crN(0, t0);
}
void helper_clts(void)
@ -3010,6 +2997,7 @@ void helper_movl_drN_T0(int reg, target_ulong t0)
void helper_invlpg(target_ulong addr)
{
helper_svm_check_intercept_param(SVM_EXIT_INVLPG, 0);
cpu_x86_flush_tlb(env, addr);
}
@ -3020,6 +3008,8 @@ void helper_rdtsc(void)
if ((env->cr[4] & CR4_TSD_MASK) && ((env->hflags & HF_CPL_MASK) != 0)) {
raise_exception(EXCP0D_GPF);
}
helper_svm_check_intercept_param(SVM_EXIT_RDTSC, 0);
val = cpu_get_tsc(env);
EAX = (uint32_t)(val);
EDX = (uint32_t)(val >> 32);
@ -3030,7 +3020,6 @@ void helper_rdpmc(void)
if ((env->cr[4] & CR4_PCE_MASK) && ((env->hflags & HF_CPL_MASK) != 0)) {
raise_exception(EXCP0D_GPF);
}
helper_svm_check_intercept_param(SVM_EXIT_RDPMC, 0);
/* currently unimplemented */
@ -3050,6 +3039,8 @@ void helper_wrmsr(void)
{
uint64_t val;
helper_svm_check_intercept_param(SVM_EXIT_MSR, 1);
val = ((uint32_t)EAX) | ((uint64_t)((uint32_t)EDX) << 32);
switch((uint32_t)ECX) {
@ -3119,6 +3110,9 @@ void helper_wrmsr(void)
void helper_rdmsr(void)
{
uint64_t val;
helper_svm_check_intercept_param(SVM_EXIT_MSR, 0);
switch((uint32_t)ECX) {
case MSR_IA32_SYSENTER_CS:
val = env->sysenter_cs;
@ -4549,6 +4543,8 @@ void helper_idivq_EAX(target_ulong t0)
void helper_hlt(void)
{
helper_svm_check_intercept_param(SVM_EXIT_HLT, 0);
env->hflags &= ~HF_INHIBIT_IRQ_MASK; /* needed if sti is just before */
env->hflags |= HF_HALTED_MASK;
env->exception_index = EXCP_HLT;
@ -4560,12 +4556,14 @@ void helper_monitor(target_ulong ptr)
if ((uint32_t)ECX != 0)
raise_exception(EXCP0D_GPF);
/* XXX: store address ? */
helper_svm_check_intercept_param(SVM_EXIT_MONITOR, 0);
}
void helper_mwait(void)
{
if ((uint32_t)ECX != 0)
raise_exception(EXCP0D_GPF);
helper_svm_check_intercept_param(SVM_EXIT_MWAIT, 0);
/* XXX: not complete but not completely erroneous */
if (env->cpu_index != 0 || env->next_cpu != NULL) {
/* more than one CPU: do not sleep because another CPU may
@ -4706,10 +4704,7 @@ void tlb_fill(target_ulong addr, int is_write, int mmu_idx, void *retaddr)
cpu_restore_state(tb, env, pc, NULL);
}
}
if (retaddr)
raise_exception_err(env->exception_index, env->error_code);
else
raise_exception_err_norestore(env->exception_index, env->error_code);
raise_exception_err(env->exception_index, env->error_code);
}
env = saved_env;
}
@ -4717,16 +4712,6 @@ void tlb_fill(target_ulong addr, int is_write, int mmu_idx, void *retaddr)
/* Secure Virtual Machine helpers */
void helper_stgi(void)
{
env->hflags |= HF_GIF_MASK;
}
void helper_clgi(void)
{
env->hflags &= ~HF_GIF_MASK;
}
#if defined(CONFIG_USER_ONLY)
void helper_vmrun(void)
@ -4741,6 +4726,12 @@ void helper_vmload(void)
void helper_vmsave(void)
{
}
void helper_stgi(void)
{
}
void helper_clgi(void)
{
}
void helper_skinit(void)
{
}
@ -4760,20 +4751,37 @@ void helper_svm_check_io(uint32_t port, uint32_t param,
}
#else
static inline uint32_t
vmcb2cpu_attrib(uint16_t vmcb_attrib, uint32_t vmcb_base, uint32_t vmcb_limit)
static inline void svm_save_seg(target_phys_addr_t addr,
const SegmentCache *sc)
{
return ((vmcb_attrib & 0x00ff) << 8) /* Type, S, DPL, P */
| ((vmcb_attrib & 0x0f00) << 12) /* AVL, L, DB, G */
| ((vmcb_base >> 16) & 0xff) /* Base 23-16 */
| (vmcb_base & 0xff000000) /* Base 31-24 */
| (vmcb_limit & 0xf0000); /* Limit 19-16 */
stw_phys(addr + offsetof(struct vmcb_seg, selector),
sc->selector);
stq_phys(addr + offsetof(struct vmcb_seg, base),
sc->base);
stl_phys(addr + offsetof(struct vmcb_seg, limit),
sc->limit);
stw_phys(addr + offsetof(struct vmcb_seg, attrib),
(sc->flags >> 8) | ((sc->flags >> 12) & 0x0f00));
}
static inline void svm_load_seg(target_phys_addr_t addr, SegmentCache *sc)
{
unsigned int flags;
sc->selector = lduw_phys(addr + offsetof(struct vmcb_seg, selector));
sc->base = ldq_phys(addr + offsetof(struct vmcb_seg, base));
sc->limit = ldl_phys(addr + offsetof(struct vmcb_seg, limit));
flags = lduw_phys(addr + offsetof(struct vmcb_seg, attrib));
sc->flags = ((flags & 0xff) << 8) | ((flags & 0x0f00) << 12);
}
static inline uint16_t cpu2vmcb_attrib(uint32_t cpu_attrib)
static inline void svm_load_seg_cache(target_phys_addr_t addr,
CPUState *env, int seg_reg)
{
return ((cpu_attrib >> 8) & 0xff) /* Type, S, DPL, P */
| ((cpu_attrib & 0xf00000) >> 12); /* AVL, L, DB, G */
SegmentCache sc1, *sc = &sc1;
svm_load_seg(addr, sc);
cpu_x86_load_seg_cache(env, seg_reg, sc->selector,
sc->base, sc->limit, sc->flags);
}
void helper_vmrun(void)
@ -4782,6 +4790,8 @@ void helper_vmrun(void)
uint32_t event_inj;
uint32_t int_ctl;
helper_svm_check_intercept_param(SVM_EXIT_VMRUN, 0);
addr = EAX;
if (loglevel & CPU_LOG_TB_IN_ASM)
fprintf(logfile,"vmrun! " TARGET_FMT_lx "\n", addr);
@ -4806,10 +4816,14 @@ void helper_vmrun(void)
stq_phys(env->vm_hsave + offsetof(struct vmcb, save.efer), env->efer);
stq_phys(env->vm_hsave + offsetof(struct vmcb, save.rflags), compute_eflags());
SVM_SAVE_SEG(env->vm_hsave, segs[R_ES], es);
SVM_SAVE_SEG(env->vm_hsave, segs[R_CS], cs);
SVM_SAVE_SEG(env->vm_hsave, segs[R_SS], ss);
SVM_SAVE_SEG(env->vm_hsave, segs[R_DS], ds);
svm_save_seg(env->vm_hsave + offsetof(struct vmcb, save.es),
&env->segs[R_ES]);
svm_save_seg(env->vm_hsave + offsetof(struct vmcb, save.cs),
&env->segs[R_CS]);
svm_save_seg(env->vm_hsave + offsetof(struct vmcb, save.ss),
&env->segs[R_SS]);
svm_save_seg(env->vm_hsave + offsetof(struct vmcb, save.ds),
&env->segs[R_DS]);
stq_phys(env->vm_hsave + offsetof(struct vmcb, save.rip), EIP);
stq_phys(env->vm_hsave + offsetof(struct vmcb, save.rsp), ESP);
@ -4817,15 +4831,16 @@ void helper_vmrun(void)
/* load the interception bitmaps so we do not need to access the
vmcb in svm mode */
/* We shift all the intercept bits so we can OR them with the TB
flags later on */
env->intercept = (ldq_phys(env->vm_vmcb + offsetof(struct vmcb, control.intercept)) << INTERCEPT_INTR) | INTERCEPT_SVM_MASK;
env->intercept = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, control.intercept));
env->intercept_cr_read = lduw_phys(env->vm_vmcb + offsetof(struct vmcb, control.intercept_cr_read));
env->intercept_cr_write = lduw_phys(env->vm_vmcb + offsetof(struct vmcb, control.intercept_cr_write));
env->intercept_dr_read = lduw_phys(env->vm_vmcb + offsetof(struct vmcb, control.intercept_dr_read));
env->intercept_dr_write = lduw_phys(env->vm_vmcb + offsetof(struct vmcb, control.intercept_dr_write));
env->intercept_exceptions = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, control.intercept_exceptions));
/* enable intercepts */
env->hflags |= HF_SVMI_MASK;
env->gdt.base = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.gdtr.base));
env->gdt.limit = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, save.gdtr.limit));
@ -4857,12 +4872,15 @@ void helper_vmrun(void)
load_eflags(ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rflags)),
~(CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C | DF_MASK));
CC_OP = CC_OP_EFLAGS;
CC_DST = 0xffffffff;
SVM_LOAD_SEG(env->vm_vmcb, ES, es);
SVM_LOAD_SEG(env->vm_vmcb, CS, cs);
SVM_LOAD_SEG(env->vm_vmcb, SS, ss);
SVM_LOAD_SEG(env->vm_vmcb, DS, ds);
svm_load_seg_cache(env->vm_vmcb + offsetof(struct vmcb, save.es),
env, R_ES);
svm_load_seg_cache(env->vm_vmcb + offsetof(struct vmcb, save.cs),
env, R_CS);
svm_load_seg_cache(env->vm_vmcb + offsetof(struct vmcb, save.ss),
env, R_SS);
svm_load_seg_cache(env->vm_vmcb + offsetof(struct vmcb, save.ds),
env, R_DS);
EIP = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rip));
env->eip = EIP;
@ -4933,7 +4951,8 @@ void helper_vmrun(void)
if (loglevel & CPU_LOG_TB_IN_ASM)
fprintf(logfile, " %#x %#x\n", env->exception_index, env->error_code);
}
if ((int_ctl & V_IRQ_MASK) || (env->intercept & INTERCEPT_VINTR)) {
if ((int_ctl & V_IRQ_MASK) ||
(env->intercept & (1ULL << (SVM_EXIT_INTR - SVM_EXIT_INTR)))) {
env->interrupt_request |= CPU_INTERRUPT_VIRQ;
}
@ -4942,23 +4961,30 @@ void helper_vmrun(void)
void helper_vmmcall(void)
{
if (loglevel & CPU_LOG_TB_IN_ASM)
fprintf(logfile,"vmmcall!\n");
helper_svm_check_intercept_param(SVM_EXIT_VMMCALL, 0);
raise_exception(EXCP06_ILLOP);
}
void helper_vmload(void)
{
target_ulong addr;
helper_svm_check_intercept_param(SVM_EXIT_VMLOAD, 0);
/* XXX: invalid in 32 bit */
addr = EAX;
if (loglevel & CPU_LOG_TB_IN_ASM)
fprintf(logfile,"vmload! " TARGET_FMT_lx "\nFS: %016" PRIx64 " | " TARGET_FMT_lx "\n",
addr, ldq_phys(addr + offsetof(struct vmcb, save.fs.base)),
env->segs[R_FS].base);
SVM_LOAD_SEG2(addr, segs[R_FS], fs);
SVM_LOAD_SEG2(addr, segs[R_GS], gs);
SVM_LOAD_SEG2(addr, tr, tr);
SVM_LOAD_SEG2(addr, ldt, ldtr);
svm_load_seg_cache(addr + offsetof(struct vmcb, save.fs),
env, R_FS);
svm_load_seg_cache(addr + offsetof(struct vmcb, save.gs),
env, R_GS);
svm_load_seg(addr + offsetof(struct vmcb, save.tr),
&env->tr);
svm_load_seg(addr + offsetof(struct vmcb, save.ldtr),
&env->ldt);
#ifdef TARGET_X86_64
env->kernelgsbase = ldq_phys(addr + offsetof(struct vmcb, save.kernel_gs_base));
@ -4975,16 +5001,21 @@ void helper_vmload(void)
void helper_vmsave(void)
{
target_ulong addr;
helper_svm_check_intercept_param(SVM_EXIT_VMSAVE, 0);
addr = EAX;
if (loglevel & CPU_LOG_TB_IN_ASM)
fprintf(logfile,"vmsave! " TARGET_FMT_lx "\nFS: %016" PRIx64 " | " TARGET_FMT_lx "\n",
addr, ldq_phys(addr + offsetof(struct vmcb, save.fs.base)),
env->segs[R_FS].base);
SVM_SAVE_SEG(addr, segs[R_FS], fs);
SVM_SAVE_SEG(addr, segs[R_GS], gs);
SVM_SAVE_SEG(addr, tr, tr);
SVM_SAVE_SEG(addr, ldt, ldtr);
svm_save_seg(addr + offsetof(struct vmcb, save.fs),
&env->segs[R_FS]);
svm_save_seg(addr + offsetof(struct vmcb, save.gs),
&env->segs[R_GS]);
svm_save_seg(addr + offsetof(struct vmcb, save.tr),
&env->tr);
svm_save_seg(addr + offsetof(struct vmcb, save.ldtr),
&env->ldt);
#ifdef TARGET_X86_64
stq_phys(addr + offsetof(struct vmcb, save.kernel_gs_base), env->kernelgsbase);
@ -4998,50 +5029,65 @@ void helper_vmsave(void)
stq_phys(addr + offsetof(struct vmcb, save.sysenter_eip), env->sysenter_eip);
}
void helper_stgi(void)
{
helper_svm_check_intercept_param(SVM_EXIT_STGI, 0);
env->hflags |= HF_GIF_MASK;
}
void helper_clgi(void)
{
helper_svm_check_intercept_param(SVM_EXIT_CLGI, 0);
env->hflags &= ~HF_GIF_MASK;
}
void helper_skinit(void)
{
helper_svm_check_intercept_param(SVM_EXIT_SKINIT, 0);
/* XXX: not implemented */
if (loglevel & CPU_LOG_TB_IN_ASM)
fprintf(logfile,"skinit!\n");
raise_exception(EXCP06_ILLOP);
}
void helper_invlpga(void)
{
helper_svm_check_intercept_param(SVM_EXIT_INVLPGA, 0);
tlb_flush(env, 0);
}
void helper_svm_check_intercept_param(uint32_t type, uint64_t param)
{
if (likely(!(env->hflags & HF_SVMI_MASK)))
return;
switch(type) {
case SVM_EXIT_READ_CR0 ... SVM_EXIT_READ_CR0 + 8:
if (INTERCEPTEDw(_cr_read, (1 << (type - SVM_EXIT_READ_CR0)))) {
helper_vmexit(type, param);
}
break;
case SVM_EXIT_READ_DR0 ... SVM_EXIT_READ_DR0 + 8:
if (INTERCEPTEDw(_dr_read, (1 << (type - SVM_EXIT_READ_DR0)))) {
if (env->intercept_cr_read & (1 << (type - SVM_EXIT_READ_CR0))) {
helper_vmexit(type, param);
}
break;
case SVM_EXIT_WRITE_CR0 ... SVM_EXIT_WRITE_CR0 + 8:
if (INTERCEPTEDw(_cr_write, (1 << (type - SVM_EXIT_WRITE_CR0)))) {
if (env->intercept_cr_write & (1 << (type - SVM_EXIT_WRITE_CR0))) {
helper_vmexit(type, param);
}
break;
case SVM_EXIT_WRITE_DR0 ... SVM_EXIT_WRITE_DR0 + 8:
if (INTERCEPTEDw(_dr_write, (1 << (type - SVM_EXIT_WRITE_DR0)))) {
case SVM_EXIT_READ_DR0 ... SVM_EXIT_READ_DR0 + 7:
if (env->intercept_dr_read & (1 << (type - SVM_EXIT_READ_DR0))) {
helper_vmexit(type, param);
}
break;
case SVM_EXIT_EXCP_BASE ... SVM_EXIT_EXCP_BASE + 16:
if (INTERCEPTEDl(_exceptions, (1 << (type - SVM_EXIT_EXCP_BASE)))) {
case SVM_EXIT_WRITE_DR0 ... SVM_EXIT_WRITE_DR0 + 7:
if (env->intercept_dr_write & (1 << (type - SVM_EXIT_WRITE_DR0))) {
helper_vmexit(type, param);
}
break;
case SVM_EXIT_IOIO:
case SVM_EXIT_EXCP_BASE ... SVM_EXIT_EXCP_BASE + 31:
if (env->intercept_exceptions & (1 << (type - SVM_EXIT_EXCP_BASE))) {
helper_vmexit(type, param);
}
break;
case SVM_EXIT_MSR:
if (INTERCEPTED(1ULL << INTERCEPT_MSR_PROT)) {
if (env->intercept & (1ULL << (SVM_EXIT_MSR - SVM_EXIT_INTR))) {
/* FIXME: this should be read in at vmrun (faster this way?) */
uint64_t addr = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, control.msrpm_base_pa));
uint32_t t0, t1;
@ -5071,7 +5117,7 @@ void helper_svm_check_intercept_param(uint32_t type, uint64_t param)
}
break;
default:
if (INTERCEPTED((1ULL << ((type - SVM_EXIT_INTR) + INTERCEPT_INTR)))) {
if (env->intercept & (1ULL << (type - SVM_EXIT_INTR))) {
helper_vmexit(type, param);
}
break;
@ -5081,7 +5127,7 @@ void helper_svm_check_intercept_param(uint32_t type, uint64_t param)
void helper_svm_check_io(uint32_t port, uint32_t param,
uint32_t next_eip_addend)
{
if (INTERCEPTED(1ULL << INTERCEPT_IOIO_PROT)) {
if (env->intercept & (1ULL << (SVM_EXIT_IOIO - SVM_EXIT_INTR))) {
/* FIXME: this should be read in at vmrun (faster this way?) */
uint64_t addr = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, control.iopm_base_pa));
uint16_t mask = (1 << ((param >> 4) & 7)) - 1;
@ -5113,10 +5159,14 @@ void helper_vmexit(uint32_t exit_code, uint64_t exit_info_1)
}
/* Save the VM state in the vmcb */
SVM_SAVE_SEG(env->vm_vmcb, segs[R_ES], es);
SVM_SAVE_SEG(env->vm_vmcb, segs[R_CS], cs);
SVM_SAVE_SEG(env->vm_vmcb, segs[R_SS], ss);
SVM_SAVE_SEG(env->vm_vmcb, segs[R_DS], ds);
svm_save_seg(env->vm_vmcb + offsetof(struct vmcb, save.es),
&env->segs[R_ES]);
svm_save_seg(env->vm_vmcb + offsetof(struct vmcb, save.cs),
&env->segs[R_CS]);
svm_save_seg(env->vm_vmcb + offsetof(struct vmcb, save.ss),
&env->segs[R_SS]);
svm_save_seg(env->vm_vmcb + offsetof(struct vmcb, save.ds),
&env->segs[R_DS]);
stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.gdtr.base), env->gdt.base);
stl_phys(env->vm_vmcb + offsetof(struct vmcb, save.gdtr.limit), env->gdt.limit);
@ -5146,6 +5196,7 @@ void helper_vmexit(uint32_t exit_code, uint64_t exit_info_1)
/* Reload the host state from vm_hsave */
env->hflags &= ~HF_HIF_MASK;
env->hflags &= ~HF_SVMI_MASK;
env->intercept = 0;
env->intercept_exceptions = 0;
env->interrupt_request &= ~CPU_INTERRUPT_VIRQ;
@ -5169,6 +5220,14 @@ void helper_vmexit(uint32_t exit_code, uint64_t exit_info_1)
env->hflags &= ~HF_LMA_MASK;
if (env->efer & MSR_EFER_LMA)
env->hflags |= HF_LMA_MASK;
/* XXX: should also emulate the VM_CR MSR */
env->hflags &= ~HF_SVME_MASK;
if (env->cpuid_ext3_features & CPUID_EXT3_SVM) {
if (env->efer & MSR_EFER_SVME)
env->hflags |= HF_SVME_MASK;
} else {
env->efer &= ~MSR_EFER_SVME;
}
#endif
env->eflags = 0;
@ -5176,10 +5235,14 @@ void helper_vmexit(uint32_t exit_code, uint64_t exit_info_1)
~(CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C | DF_MASK));
CC_OP = CC_OP_EFLAGS;
SVM_LOAD_SEG(env->vm_hsave, ES, es);
SVM_LOAD_SEG(env->vm_hsave, CS, cs);
SVM_LOAD_SEG(env->vm_hsave, SS, ss);
SVM_LOAD_SEG(env->vm_hsave, DS, ds);
svm_load_seg_cache(env->vm_hsave + offsetof(struct vmcb, save.es),
env, R_ES);
svm_load_seg_cache(env->vm_hsave + offsetof(struct vmcb, save.cs),
env, R_CS);
svm_load_seg_cache(env->vm_hsave + offsetof(struct vmcb, save.ss),
env, R_SS);
svm_load_seg_cache(env->vm_hsave + offsetof(struct vmcb, save.ds),
env, R_DS);
EIP = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.rip));
ESP = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.rsp));

299
target-i386/svm.h
View File

@ -1,91 +1,6 @@
#ifndef __SVM_H
#define __SVM_H
enum {
/* We shift all the intercept bits so we can OR them with the
TB flags later on */
INTERCEPT_INTR = HF_HIF_SHIFT,
INTERCEPT_NMI,
INTERCEPT_SMI,
INTERCEPT_INIT,
INTERCEPT_VINTR,
INTERCEPT_SELECTIVE_CR0,
INTERCEPT_STORE_IDTR,
INTERCEPT_STORE_GDTR,
INTERCEPT_STORE_LDTR,
INTERCEPT_STORE_TR,
INTERCEPT_LOAD_IDTR,
INTERCEPT_LOAD_GDTR,
INTERCEPT_LOAD_LDTR,
INTERCEPT_LOAD_TR,
INTERCEPT_RDTSC,
INTERCEPT_RDPMC,
INTERCEPT_PUSHF,
INTERCEPT_POPF,
INTERCEPT_CPUID,
INTERCEPT_RSM,
INTERCEPT_IRET,
INTERCEPT_INTn,
INTERCEPT_INVD,
INTERCEPT_PAUSE,
INTERCEPT_HLT,
INTERCEPT_INVLPG,
INTERCEPT_INVLPGA,
INTERCEPT_IOIO_PROT,
INTERCEPT_MSR_PROT,
INTERCEPT_TASK_SWITCH,
INTERCEPT_FERR_FREEZE,
INTERCEPT_SHUTDOWN,
INTERCEPT_VMRUN,
INTERCEPT_VMMCALL,
INTERCEPT_VMLOAD,
INTERCEPT_VMSAVE,
INTERCEPT_STGI,
INTERCEPT_CLGI,
INTERCEPT_SKINIT,
INTERCEPT_RDTSCP,
INTERCEPT_ICEBP,
INTERCEPT_WBINVD,
};
/* This is not really an intercept but rather a placeholder to
show that we are in an SVM (just like a hidden flag, but keeps the
TBs clean) */
#define INTERCEPT_SVM 63
#define INTERCEPT_SVM_MASK (1ULL << INTERCEPT_SVM)
struct __attribute__ ((__packed__)) vmcb_control_area {
uint16_t intercept_cr_read;
uint16_t intercept_cr_write;
uint16_t intercept_dr_read;
uint16_t intercept_dr_write;
uint32_t intercept_exceptions;
uint64_t intercept;
uint8_t reserved_1[44];
uint64_t iopm_base_pa;
uint64_t msrpm_base_pa;
uint64_t tsc_offset;
uint32_t asid;
uint8_t tlb_ctl;
uint8_t reserved_2[3];
uint32_t int_ctl;
uint32_t int_vector;
uint32_t int_state;
uint8_t reserved_3[4];
uint64_t exit_code;
uint64_t exit_info_1;
uint64_t exit_info_2;
uint32_t exit_int_info;
uint32_t exit_int_info_err;
uint64_t nested_ctl;
uint8_t reserved_4[16];
uint32_t event_inj;
uint32_t event_inj_err;
uint64_t nested_cr3;
uint64_t lbr_ctl;
uint8_t reserved_5[832];
};
#define TLB_CONTROL_DO_NOTHING 0
#define TLB_CONTROL_FLUSH_ALL_ASID 1
@ -116,104 +31,6 @@ struct __attribute__ ((__packed__)) vmcb_control_area {
#define SVM_IOIO_SIZE_MASK (7 << SVM_IOIO_SIZE_SHIFT)
#define SVM_IOIO_ASIZE_MASK (7 << SVM_IOIO_ASIZE_SHIFT)
struct __attribute__ ((__packed__)) vmcb_seg {
uint16_t selector;
uint16_t attrib;
uint32_t limit;
uint64_t base;
};
struct __attribute__ ((__packed__)) vmcb_save_area {
struct vmcb_seg es;
struct vmcb_seg cs;
struct vmcb_seg ss;
struct vmcb_seg ds;
struct vmcb_seg fs;
struct vmcb_seg gs;
struct vmcb_seg gdtr;
struct vmcb_seg ldtr;
struct vmcb_seg idtr;
struct vmcb_seg tr;
uint8_t reserved_1[43];
uint8_t cpl;
uint8_t reserved_2[4];
uint64_t efer;
uint8_t reserved_3[112];
uint64_t cr4;
uint64_t cr3;
uint64_t cr0;
uint64_t dr7;
uint64_t dr6;
uint64_t rflags;
uint64_t rip;
uint8_t reserved_4[88];
uint64_t rsp;
uint8_t reserved_5[24];
uint64_t rax;
uint64_t star;
uint64_t lstar;
uint64_t cstar;
uint64_t sfmask;
uint64_t kernel_gs_base;
uint64_t sysenter_cs;
uint64_t sysenter_esp;
uint64_t sysenter_eip;
uint64_t cr2;
/* qemu: cr8 added to reuse this as hsave */
uint64_t cr8;
uint8_t reserved_6[32 - 8]; /* originally 32 */
uint64_t g_pat;
uint64_t dbgctl;
uint64_t br_from;
uint64_t br_to;
uint64_t last_excp_from;
uint64_t last_excp_to;
};
struct __attribute__ ((__packed__)) vmcb {
struct vmcb_control_area control;
struct vmcb_save_area save;
};
#define SVM_CPUID_FEATURE_SHIFT 2
#define SVM_CPUID_FUNC 0x8000000a
#define MSR_EFER_SVME_MASK (1ULL << 12)
#define SVM_SELECTOR_S_SHIFT 4
#define SVM_SELECTOR_DPL_SHIFT 5
#define SVM_SELECTOR_P_SHIFT 7
#define SVM_SELECTOR_AVL_SHIFT 8
#define SVM_SELECTOR_L_SHIFT 9
#define SVM_SELECTOR_DB_SHIFT 10
#define SVM_SELECTOR_G_SHIFT 11
#define SVM_SELECTOR_TYPE_MASK (0xf)
#define SVM_SELECTOR_S_MASK (1 << SVM_SELECTOR_S_SHIFT)
#define SVM_SELECTOR_DPL_MASK (3 << SVM_SELECTOR_DPL_SHIFT)
#define SVM_SELECTOR_P_MASK (1 << SVM_SELECTOR_P_SHIFT)
#define SVM_SELECTOR_AVL_MASK (1 << SVM_SELECTOR_AVL_SHIFT)
#define SVM_SELECTOR_L_MASK (1 << SVM_SELECTOR_L_SHIFT)
#define SVM_SELECTOR_DB_MASK (1 << SVM_SELECTOR_DB_SHIFT)
#define SVM_SELECTOR_G_MASK (1 << SVM_SELECTOR_G_SHIFT)
#define SVM_SELECTOR_WRITE_MASK (1 << 1)
#define SVM_SELECTOR_READ_MASK SVM_SELECTOR_WRITE_MASK
#define SVM_SELECTOR_CODE_MASK (1 << 3)
#define INTERCEPT_CR0_MASK 1
#define INTERCEPT_CR3_MASK (1 << 3)
#define INTERCEPT_CR4_MASK (1 << 4)
#define INTERCEPT_DR0_MASK 1
#define INTERCEPT_DR1_MASK (1 << 1)
#define INTERCEPT_DR2_MASK (1 << 2)
#define INTERCEPT_DR3_MASK (1 << 3)
#define INTERCEPT_DR4_MASK (1 << 4)
#define INTERCEPT_DR5_MASK (1 << 5)
#define INTERCEPT_DR6_MASK (1 << 6)
#define INTERCEPT_DR7_MASK (1 << 7)
#define SVM_EVTINJ_VEC_MASK 0xff
#define SVM_EVTINJ_TYPE_SHIFT 8
@ -313,37 +130,95 @@ struct __attribute__ ((__packed__)) vmcb {
#define SVM_CR0_SELECTIVE_MASK (1 << 3 | 1) /* TS and MP */
#define SVM_VMLOAD ".byte 0x0f, 0x01, 0xda"
#define SVM_VMRUN ".byte 0x0f, 0x01, 0xd8"
#define SVM_VMSAVE ".byte 0x0f, 0x01, 0xdb"
#define SVM_CLGI ".byte 0x0f, 0x01, 0xdd"
#define SVM_STGI ".byte 0x0f, 0x01, 0xdc"
#define SVM_INVLPGA ".byte 0x0f, 0x01, 0xdf"
struct __attribute__ ((__packed__)) vmcb_control_area {
uint16_t intercept_cr_read;
uint16_t intercept_cr_write;
uint16_t intercept_dr_read;
uint16_t intercept_dr_write;
uint32_t intercept_exceptions;
uint64_t intercept;
uint8_t reserved_1[44];
uint64_t iopm_base_pa;
uint64_t msrpm_base_pa;
uint64_t tsc_offset;
uint32_t asid;
uint8_t tlb_ctl;
uint8_t reserved_2[3];
uint32_t int_ctl;
uint32_t int_vector;
uint32_t int_state;
uint8_t reserved_3[4];
uint64_t exit_code;
uint64_t exit_info_1;
uint64_t exit_info_2;
uint32_t exit_int_info;
uint32_t exit_int_info_err;
uint64_t nested_ctl;
uint8_t reserved_4[16];
uint32_t event_inj;
uint32_t event_inj_err;
uint64_t nested_cr3;
uint64_t lbr_ctl;
uint8_t reserved_5[832];
};
/* function references */
struct __attribute__ ((__packed__)) vmcb_seg {
uint16_t selector;
uint16_t attrib;
uint32_t limit;
uint64_t base;
};
#define INTERCEPTED(mask) (env->intercept & mask)
#define INTERCEPTEDw(var, mask) (env->intercept ## var & mask)
#define INTERCEPTEDl(var, mask) (env->intercept ## var & mask)
struct __attribute__ ((__packed__)) vmcb_save_area {
struct vmcb_seg es;
struct vmcb_seg cs;
struct vmcb_seg ss;
struct vmcb_seg ds;
struct vmcb_seg fs;
struct vmcb_seg gs;
struct vmcb_seg gdtr;
struct vmcb_seg ldtr;
struct vmcb_seg idtr;
struct vmcb_seg tr;
uint8_t reserved_1[43];
uint8_t cpl;
uint8_t reserved_2[4];
uint64_t efer;
uint8_t reserved_3[112];
uint64_t cr4;
uint64_t cr3;
uint64_t cr0;
uint64_t dr7;
uint64_t dr6;
uint64_t rflags;
uint64_t rip;
uint8_t reserved_4[88];
uint64_t rsp;
uint8_t reserved_5[24];
uint64_t rax;
uint64_t star;
uint64_t lstar;
uint64_t cstar;
uint64_t sfmask;
uint64_t kernel_gs_base;
uint64_t sysenter_cs;
uint64_t sysenter_esp;
uint64_t sysenter_eip;
uint64_t cr2;
/* qemu: cr8 added to reuse this as hsave */
uint64_t cr8;
uint8_t reserved_6[32 - 8]; /* originally 32 */
uint64_t g_pat;
uint64_t dbgctl;
uint64_t br_from;
uint64_t br_to;
uint64_t last_excp_from;
uint64_t last_excp_to;
};
#define SVM_LOAD_SEG(addr, seg_index, seg) \
cpu_x86_load_seg_cache(env, \
R_##seg_index, \
lduw_phys(addr + offsetof(struct vmcb, save.seg.selector)),\
ldq_phys(addr + offsetof(struct vmcb, save.seg.base)),\
ldl_phys(addr + offsetof(struct vmcb, save.seg.limit)),\
vmcb2cpu_attrib(lduw_phys(addr + offsetof(struct vmcb, save.seg.attrib)), ldq_phys(addr + offsetof(struct vmcb, save.seg.base)), ldl_phys(addr + offsetof(struct vmcb, save.seg.limit))))
#define SVM_LOAD_SEG2(addr, seg_qemu, seg_vmcb) \
env->seg_qemu.selector = lduw_phys(addr + offsetof(struct vmcb, save.seg_vmcb.selector)); \
env->seg_qemu.base = ldq_phys(addr + offsetof(struct vmcb, save.seg_vmcb.base)); \
env->seg_qemu.limit = ldl_phys(addr + offsetof(struct vmcb, save.seg_vmcb.limit)); \
env->seg_qemu.flags = vmcb2cpu_attrib(lduw_phys(addr + offsetof(struct vmcb, save.seg_vmcb.attrib)), env->seg_qemu.base, env->seg_qemu.limit)
#define SVM_SAVE_SEG(addr, seg_qemu, seg_vmcb) \
stw_phys(addr + offsetof(struct vmcb, save.seg_vmcb.selector), env->seg_qemu.selector); \
stq_phys(addr + offsetof(struct vmcb, save.seg_vmcb.base), env->seg_qemu.base); \
stl_phys(addr + offsetof(struct vmcb, save.seg_vmcb.limit), env->seg_qemu.limit); \
stw_phys(addr + offsetof(struct vmcb, save.seg_vmcb.attrib), cpu2vmcb_attrib(env->seg_qemu.flags))
struct __attribute__ ((__packed__)) vmcb {
struct vmcb_control_area control;
struct vmcb_save_area save;
};
#endif

238
target-i386/translate.c
View File

@ -733,7 +733,7 @@ static void gen_check_io(DisasContext *s, int ot, target_ulong cur_eip,
tcg_gen_helper_0_1(gen_check_io_func[ot],
cpu_tmp2_i32);
}
if(s->flags & (1ULL << INTERCEPT_IOIO_PROT)) {
if(s->flags & HF_SVMI_MASK) {
if (!state_saved) {
if (s->cc_op != CC_OP_DYNAMIC)
gen_op_set_cc_op(s->cc_op);
@ -2322,59 +2322,24 @@ static inline int svm_is_rep(int prefixes)
return ((prefixes & (PREFIX_REPZ | PREFIX_REPNZ)) ? 8 : 0);
}
static inline int
static inline void
gen_svm_check_intercept_param(DisasContext *s, target_ulong pc_start,
uint32_t type, uint64_t param)
{
if(!(s->flags & (INTERCEPT_SVM_MASK)))
/* no SVM activated */
return 0;
switch(type) {
/* CRx and DRx reads/writes */
case SVM_EXIT_READ_CR0 ... SVM_EXIT_EXCP_BASE - 1:
if (s->cc_op != CC_OP_DYNAMIC) {
gen_op_set_cc_op(s->cc_op);
}
gen_jmp_im(pc_start - s->cs_base);
tcg_gen_helper_0_2(helper_svm_check_intercept_param,
tcg_const_i32(type), tcg_const_i64(param));
/* this is a special case as we do not know if the interception occurs
so we assume there was none */
return 0;
case SVM_EXIT_MSR:
if(s->flags & (1ULL << INTERCEPT_MSR_PROT)) {
if (s->cc_op != CC_OP_DYNAMIC) {
gen_op_set_cc_op(s->cc_op);
}
gen_jmp_im(pc_start - s->cs_base);
tcg_gen_helper_0_2(helper_svm_check_intercept_param,
tcg_const_i32(type), tcg_const_i64(param));
/* this is a special case as we do not know if the interception occurs
so we assume there was none */
return 0;
}
break;
default:
if(s->flags & (1ULL << ((type - SVM_EXIT_INTR) + INTERCEPT_INTR))) {
if (s->cc_op != CC_OP_DYNAMIC) {
gen_op_set_cc_op(s->cc_op);
}
gen_jmp_im(pc_start - s->cs_base);
tcg_gen_helper_0_2(helper_vmexit,
tcg_const_i32(type), tcg_const_i64(param));
/* we can optimize this one so TBs don't get longer
than up to vmexit */
gen_eob(s);
return 1;
}
}
return 0;
/* no SVM activated; fast case */
if (likely(!(s->flags & HF_SVMI_MASK)))
return;
if (s->cc_op != CC_OP_DYNAMIC)
gen_op_set_cc_op(s->cc_op);
gen_jmp_im(pc_start - s->cs_base);
tcg_gen_helper_0_2(helper_svm_check_intercept_param,
tcg_const_i32(type), tcg_const_i64(param));
}
static inline int
static inline void
gen_svm_check_intercept(DisasContext *s, target_ulong pc_start, uint64_t type)
{
return gen_svm_check_intercept_param(s, pc_start, type, 0);
gen_svm_check_intercept_param(s, pc_start, type, 0);
}
static inline void gen_stack_update(DisasContext *s, int addend)
@ -5743,8 +5708,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
val = 0;
goto do_lret;
case 0xcf: /* iret */
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_IRET))
break;
gen_svm_check_intercept(s, pc_start, SVM_EXIT_IRET);
if (!s->pe) {
/* real mode */
tcg_gen_helper_0_1(helper_iret_real, tcg_const_i32(s->dflag));
@ -5890,8 +5854,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
/************************/
/* flags */
case 0x9c: /* pushf */
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_PUSHF))
break;
gen_svm_check_intercept(s, pc_start, SVM_EXIT_PUSHF);
if (s->vm86 && s->iopl != 3) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
@ -5902,8 +5865,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
}
break;
case 0x9d: /* popf */
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_POPF))
break;
gen_svm_check_intercept(s, pc_start, SVM_EXIT_POPF);
if (s->vm86 && s->iopl != 3) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
@ -6187,14 +6149,10 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
}
break;
case 0xcc: /* int3 */
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_SWINT))
break;
gen_interrupt(s, EXCP03_INT3, pc_start - s->cs_base, s->pc - s->cs_base);
break;
case 0xcd: /* int N */
val = ldub_code(s->pc++);
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_SWINT))
break;
if (s->vm86 && s->iopl != 3) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
@ -6204,16 +6162,13 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
case 0xce: /* into */
if (CODE64(s))
goto illegal_op;
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_SWINT))
break;
if (s->cc_op != CC_OP_DYNAMIC)
gen_op_set_cc_op(s->cc_op);
gen_jmp_im(pc_start - s->cs_base);
tcg_gen_helper_0_1(helper_into, tcg_const_i32(s->pc - pc_start));
break;
case 0xf1: /* icebp (undocumented, exits to external debugger) */
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_ICEBP))
break;
gen_svm_check_intercept(s, pc_start, SVM_EXIT_ICEBP);
#if 1
gen_debug(s, pc_start - s->cs_base);
#else
@ -6371,25 +6326,25 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
int retval = 0;
if (s->cc_op != CC_OP_DYNAMIC)
gen_op_set_cc_op(s->cc_op);
gen_jmp_im(pc_start - s->cs_base);
if (b & 2) {
retval = gen_svm_check_intercept_param(s, pc_start, SVM_EXIT_MSR, 0);
tcg_gen_helper_0_0(helper_rdmsr);
} else {
retval = gen_svm_check_intercept_param(s, pc_start, SVM_EXIT_MSR, 1);
tcg_gen_helper_0_0(helper_wrmsr);
}
if(retval)
gen_eob(s);
}
break;
case 0x131: /* rdtsc */
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_RDTSC))
break;
if (s->cc_op != CC_OP_DYNAMIC)
gen_op_set_cc_op(s->cc_op);
gen_jmp_im(pc_start - s->cs_base);
tcg_gen_helper_0_0(helper_rdtsc);
break;
case 0x133: /* rdpmc */
if (s->cc_op != CC_OP_DYNAMIC)
gen_op_set_cc_op(s->cc_op);
gen_jmp_im(pc_start - s->cs_base);
tcg_gen_helper_0_0(helper_rdpmc);
break;
@ -6452,16 +6407,12 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
break;
#endif
case 0x1a2: /* cpuid */
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_CPUID))
break;
tcg_gen_helper_0_0(helper_cpuid);
break;
case 0xf4: /* hlt */
if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_HLT))
break;
if (s->cc_op != CC_OP_DYNAMIC)
gen_op_set_cc_op(s->cc_op);
gen_jmp_im(s->pc - s->cs_base);
@ -6477,8 +6428,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
case 0: /* sldt */
if (!s->pe || s->vm86)
goto illegal_op;
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_LDTR_READ))
break;
gen_svm_check_intercept(s, pc_start, SVM_EXIT_LDTR_READ);
tcg_gen_ld32u_tl(cpu_T[0], cpu_env, offsetof(CPUX86State,ldt.selector));
ot = OT_WORD;
if (mod == 3)
@ -6491,8 +6441,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_LDTR_WRITE))
break;
gen_svm_check_intercept(s, pc_start, SVM_EXIT_LDTR_WRITE);
gen_ldst_modrm(s, modrm, OT_WORD, OR_TMP0, 0);
gen_jmp_im(pc_start - s->cs_base);
tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]);
@ -6502,8 +6451,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
case 1: /* str */
if (!s->pe || s->vm86)
goto illegal_op;
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_TR_READ))
break;
gen_svm_check_intercept(s, pc_start, SVM_EXIT_TR_READ);
tcg_gen_ld32u_tl(cpu_T[0], cpu_env, offsetof(CPUX86State,tr.selector));
ot = OT_WORD;
if (mod == 3)
@ -6516,8 +6464,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_TR_WRITE))
break;
gen_svm_check_intercept(s, pc_start, SVM_EXIT_TR_WRITE);
gen_ldst_modrm(s, modrm, OT_WORD, OR_TMP0, 0);
gen_jmp_im(pc_start - s->cs_base);
tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]);
@ -6550,8 +6497,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
case 0: /* sgdt */
if (mod == 3)
goto illegal_op;
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_GDTR_READ))
break;
gen_svm_check_intercept(s, pc_start, SVM_EXIT_GDTR_READ);
gen_lea_modrm(s, modrm, &reg_addr, &offset_addr);
tcg_gen_ld32u_tl(cpu_T[0], cpu_env, offsetof(CPUX86State, gdt.limit));
gen_op_st_T0_A0(OT_WORD + s->mem_index);
@ -6568,8 +6514,6 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
if (!(s->cpuid_ext_features & CPUID_EXT_MONITOR) ||
s->cpl != 0)
goto illegal_op;
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_MONITOR))
break;
gen_jmp_im(pc_start - s->cs_base);
#ifdef TARGET_X86_64
if (s->aflag == 2) {
@ -6592,8 +6536,6 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
gen_op_set_cc_op(s->cc_op);
s->cc_op = CC_OP_DYNAMIC;
}
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_MWAIT))
break;
gen_jmp_im(s->pc - s->cs_base);
tcg_gen_helper_0_0(helper_mwait);
gen_eob(s);
@ -6602,8 +6544,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
goto illegal_op;
}
} else { /* sidt */
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_IDTR_READ))
break;
gen_svm_check_intercept(s, pc_start, SVM_EXIT_IDTR_READ);
gen_lea_modrm(s, modrm, &reg_addr, &offset_addr);
tcg_gen_ld32u_tl(cpu_T[0], cpu_env, offsetof(CPUX86State, idt.limit));
gen_op_st_T0_A0(OT_WORD + s->mem_index);
@ -6617,52 +6558,85 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
case 2: /* lgdt */
case 3: /* lidt */
if (mod == 3) {
if (s->cc_op != CC_OP_DYNAMIC)
gen_op_set_cc_op(s->cc_op);
gen_jmp_im(pc_start - s->cs_base);
switch(rm) {
case 0: /* VMRUN */
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_VMRUN))
if (!(s->flags & HF_SVME_MASK) || !s->pe)
goto illegal_op;
if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
break;
if (s->cc_op != CC_OP_DYNAMIC)
gen_op_set_cc_op(s->cc_op);
gen_jmp_im(s->pc - s->cs_base);
tcg_gen_helper_0_0(helper_vmrun);
s->cc_op = CC_OP_EFLAGS;
gen_eob(s);
} else {
tcg_gen_helper_0_0(helper_vmrun);
s->cc_op = CC_OP_EFLAGS;
gen_eob(s);
}
break;
case 1: /* VMMCALL */
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_VMMCALL))
break;
/* FIXME: cause #UD if hflags & SVM */
if (!(s->flags & HF_SVME_MASK))
goto illegal_op;
tcg_gen_helper_0_0(helper_vmmcall);
break;
case 2: /* VMLOAD */
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_VMLOAD))
break;
tcg_gen_helper_0_0(helper_vmload);
if (!(s->flags & HF_SVME_MASK) || !s->pe)
goto illegal_op;
if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
break;
} else {
tcg_gen_helper_0_0(helper_vmload);
}
break;
case 3: /* VMSAVE */
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_VMSAVE))
break;
tcg_gen_helper_0_0(helper_vmsave);
if (!(s->flags & HF_SVME_MASK) || !s->pe)
goto illegal_op;
if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
break;
} else {
tcg_gen_helper_0_0(helper_vmsave);
}
break;
case 4: /* STGI */
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_STGI))
break;
tcg_gen_helper_0_0(helper_stgi);
if ((!(s->flags & HF_SVME_MASK) &&
!(s->cpuid_ext3_features & CPUID_EXT3_SKINIT)) ||
!s->pe)
goto illegal_op;
if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
break;
} else {
tcg_gen_helper_0_0(helper_stgi);
}
break;
case 5: /* CLGI */
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_CLGI))
break;
tcg_gen_helper_0_0(helper_clgi);
if (!(s->flags & HF_SVME_MASK) || !s->pe)
goto illegal_op;
if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
break;
} else {
tcg_gen_helper_0_0(helper_clgi);
}
break;
case 6: /* SKINIT */
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_SKINIT))
break;
if ((!(s->flags & HF_SVME_MASK) &&
!(s->cpuid_ext3_features & CPUID_EXT3_SKINIT)) ||
!s->pe)
goto illegal_op;
tcg_gen_helper_0_0(helper_skinit);
break;
case 7: /* INVLPGA */
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_INVLPGA))
break;
tcg_gen_helper_0_0(helper_invlpga);
if (!(s->flags & HF_SVME_MASK) || !s->pe)
goto illegal_op;
if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
break;
} else {
tcg_gen_helper_0_0(helper_invlpga);
}
break;
default:
goto illegal_op;
@ -6670,9 +6644,8 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
} else if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
if (gen_svm_check_intercept(s, pc_start,
op==2 ? SVM_EXIT_GDTR_WRITE : SVM_EXIT_IDTR_WRITE))
break;
gen_svm_check_intercept(s, pc_start,
op==2 ? SVM_EXIT_GDTR_WRITE : SVM_EXIT_IDTR_WRITE);
gen_lea_modrm(s, modrm, &reg_addr, &offset_addr);
gen_op_ld_T1_A0(OT_WORD + s->mem_index);
gen_add_A0_im(s, 2);
@ -6689,8 +6662,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
}
break;
case 4: /* smsw */
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_READ_CR0))
break;
gen_svm_check_intercept(s, pc_start, SVM_EXIT_READ_CR0);
tcg_gen_ld32u_tl(cpu_T[0], cpu_env, offsetof(CPUX86State,cr[0]));
gen_ldst_modrm(s, modrm, OT_WORD, OR_TMP0, 1);
break;
@ -6698,8 +6670,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_WRITE_CR0))
break;
gen_svm_check_intercept(s, pc_start, SVM_EXIT_WRITE_CR0);
gen_ldst_modrm(s, modrm, OT_WORD, OR_TMP0, 0);
tcg_gen_helper_0_1(helper_lmsw, cpu_T[0]);
gen_jmp_im(s->pc - s->cs_base);
@ -6724,8 +6695,6 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
goto illegal_op;
}
} else {
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_INVLPG))
break;
gen_lea_modrm(s, modrm, &reg_addr, &offset_addr);
tcg_gen_helper_0_1(helper_invlpg, cpu_A0);
gen_jmp_im(s->pc - s->cs_base);
@ -6742,8 +6711,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
if (gen_svm_check_intercept(s, pc_start, (b & 2) ? SVM_EXIT_INVD : SVM_EXIT_WBINVD))
break;
gen_svm_check_intercept(s, pc_start, (b & 2) ? SVM_EXIT_INVD : SVM_EXIT_WBINVD);
/* nothing to do */
}
break;
@ -6892,21 +6860,18 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
case 3:
case 4:
case 8:
if (s->cc_op != CC_OP_DYNAMIC)
gen_op_set_cc_op(s->cc_op);
gen_jmp_im(pc_start - s->cs_base);
if (b & 2) {
gen_svm_check_intercept(s, pc_start, SVM_EXIT_WRITE_CR0 + reg);
gen_op_mov_TN_reg(ot, 0, rm);
tcg_gen_helper_0_2(helper_movl_crN_T0,
tcg_gen_helper_0_2(helper_write_crN,
tcg_const_i32(reg), cpu_T[0]);
gen_jmp_im(s->pc - s->cs_base);
gen_eob(s);
} else {
gen_svm_check_intercept(s, pc_start, SVM_EXIT_READ_CR0 + reg);
#if !defined(CONFIG_USER_ONLY)
if (reg == 8)
tcg_gen_helper_1_0(helper_movtl_T0_cr8, cpu_T[0]);
else
#endif
tcg_gen_ld_tl(cpu_T[0], cpu_env, offsetof(CPUX86State,cr[reg]));
tcg_gen_helper_1_1(helper_read_crN,
cpu_T[0], tcg_const_i32(reg));
gen_op_mov_reg_T0(ot, rm);
}
break;
@ -7054,8 +7019,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
/* ignore for now */
break;
case 0x1aa: /* rsm */
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_RSM))
break;
gen_svm_check_intercept(s, pc_start, SVM_EXIT_RSM);
if (!(s->flags & HF_SMM_MASK))
goto illegal_op;
if (s->cc_op != CC_OP_DYNAMIC) {