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SVM Support, by Alexander Graf. 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3210 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
ths 2007-09-23 15:28:04 +00:00
parent bbbb2f0af9
commit 0573fbfc3f
9 changed files with 921 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
cpu-all.h
View File

@ -716,6 +716,7 @@ extern int code_copy_enabled;
#define CPU_INTERRUPT_HALT 0x20 /* CPU halt wanted */
#define CPU_INTERRUPT_SMI 0x40 /* (x86 only) SMI interrupt pending */
#define CPU_INTERRUPT_DEBUG 0x80 /* Debug event occured. */
#define CPU_INTERRUPT_VIRQ 0x100 /* virtual interrupt pending. */
void cpu_interrupt(CPUState *s, int mask);
void cpu_reset_interrupt(CPUState *env, int mask);

29
cpu-exec.c
View File

@ -163,6 +163,7 @@ 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)
@ -372,7 +373,11 @@ int cpu_exec(CPUState *env1)
tmp_T0 = T0;
#endif
interrupt_request = env->interrupt_request;
if (__builtin_expect(interrupt_request, 0)) {
if (__builtin_expect(interrupt_request, 0)
#if defined(TARGET_I386)
&& env->hflags & HF_GIF_MASK
#endif
) {
if (interrupt_request & CPU_INTERRUPT_DEBUG) {
env->interrupt_request &= ~CPU_INTERRUPT_DEBUG;
env->exception_index = EXCP_DEBUG;
@ -390,6 +395,7 @@ int cpu_exec(CPUState *env1)
#if defined(TARGET_I386)
if ((interrupt_request & CPU_INTERRUPT_SMI) &&
!(env->hflags & HF_SMM_MASK)) {
svm_check_intercept(SVM_EXIT_SMI);
env->interrupt_request &= ~CPU_INTERRUPT_SMI;
do_smm_enter();
#if defined(__sparc__) && !defined(HOST_SOLARIS)
@ -398,9 +404,10 @@ int cpu_exec(CPUState *env1)
T0 = 0;
#endif
} else if ((interrupt_request & CPU_INTERRUPT_HARD) &&
(env->eflags & IF_MASK) &&
(env->eflags & IF_MASK || env->hflags & HF_HIF_MASK) &&
!(env->hflags & HF_INHIBIT_IRQ_MASK)) {
int intno;
svm_check_intercept(SVM_EXIT_INTR);
env->interrupt_request &= ~CPU_INTERRUPT_HARD;
intno = cpu_get_pic_interrupt(env);
if (loglevel & CPU_LOG_TB_IN_ASM) {
@ -413,6 +420,24 @@ int cpu_exec(CPUState *env1)
tmp_T0 = 0;
#else
T0 = 0;
#endif
#if !defined(CONFIG_USER_ONLY)
} else if ((interrupt_request & CPU_INTERRUPT_VIRQ) &&
(env->eflags & IF_MASK) && !(env->hflags & HF_INHIBIT_IRQ_MASK)) {
int intno;
/* FIXME: this should respect TPR */
env->interrupt_request &= ~CPU_INTERRUPT_VIRQ;
stl_phys(env->vm_vmcb + offsetof(struct vmcb, control.int_ctl),
ldl_phys(env->vm_vmcb + offsetof(struct vmcb, control.int_ctl)) & ~V_IRQ_MASK);
intno = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, control.int_vector));
if (loglevel & CPU_LOG_TB_IN_ASM)
fprintf(logfile, "Servicing virtual hardware INT=0x%02x\n", intno);
do_interrupt(intno, 0, 0, -1, 1);
#if defined(__sparc__) && !defined(HOST_SOLARIS)
tmp_T0 = 0;
#else
T0 = 0;
#endif
#endif
}
#elif defined(TARGET_PPC)

5
exec.c
View File

@ -1292,6 +1292,11 @@ void cpu_abort(CPUState *env, const char *fmt, ...)
vfprintf(stderr, fmt, ap);
fprintf(stderr, "\n");
#ifdef TARGET_I386
if(env->intercept & INTERCEPT_SVM_MASK) {
/* most probably the virtual machine should not
be shut down but rather caught by the VMM */
vmexit(SVM_EXIT_SHUTDOWN, 0);
}
cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU | X86_DUMP_CCOP);
#else
cpu_dump_state(env, stderr, fprintf, 0);

22
target-i386/cpu.h
View File

@ -84,6 +84,7 @@
#define DESC_AVL_MASK (1 << 20)
#define DESC_P_MASK (1 << 15)
#define DESC_DPL_SHIFT 13
#define DESC_DPL_MASK (1 << DESC_DPL_SHIFT)
#define DESC_S_MASK (1 << 12)
#define DESC_TYPE_SHIFT 8
#define DESC_A_MASK (1 << 8)
@ -149,6 +150,8 @@
#define HF_VM_SHIFT 17 /* must be same as eflags */
#define HF_HALTED_SHIFT 18 /* CPU halted */
#define HF_SMM_SHIFT 19 /* CPU in SMM mode */
#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_CPL_MASK (3 << HF_CPL_SHIFT)
#define HF_SOFTMMU_MASK (1 << HF_SOFTMMU_SHIFT)
@ -166,6 +169,8 @@
#define HF_OSFXSR_MASK (1 << HF_OSFXSR_SHIFT)
#define HF_HALTED_MASK (1 << HF_HALTED_SHIFT)
#define HF_SMM_MASK (1 << HF_SMM_SHIFT)
#define HF_GIF_MASK (1 << HF_GIF_SHIFT)
#define HF_HIF_MASK (1 << HF_HIF_SHIFT)
#define CR0_PE_MASK (1 << 0)
#define CR0_MP_MASK (1 << 1)
@ -249,6 +254,8 @@
#define MSR_GSBASE 0xc0000101
#define MSR_KERNELGSBASE 0xc0000102
#define MSR_VM_HSAVE_PA 0xc0010117
/* cpuid_features bits */
#define CPUID_FP87 (1 << 0)
#define CPUID_VME (1 << 1)
@ -283,6 +290,8 @@
#define CPUID_EXT2_FFXSR (1 << 25)
#define CPUID_EXT2_LM (1 << 29)
#define CPUID_EXT3_SVM (1 << 2)
#define EXCP00_DIVZ 0
#define EXCP01_SSTP 1
#define EXCP02_NMI 2
@ -489,6 +498,16 @@ typedef struct CPUX86State {
uint32_t sysenter_eip;
uint64_t efer;
uint64_t star;
target_phys_addr_t vm_hsave;
target_phys_addr_t vm_vmcb;
uint64_t intercept;
uint16_t intercept_cr_read;
uint16_t intercept_cr_write;
uint16_t intercept_dr_read;
uint16_t intercept_dr_write;
uint32_t intercept_exceptions;
#ifdef TARGET_X86_64
target_ulong lstar;
target_ulong cstar;
@ -530,6 +549,7 @@ typedef struct CPUX86State {
uint32_t cpuid_xlevel;
uint32_t cpuid_model[12];
uint32_t cpuid_ext2_features;
uint32_t cpuid_ext3_features;
uint32_t cpuid_apic_id;
#ifdef USE_KQEMU
@ -670,4 +690,6 @@ static inline int cpu_get_time_fast(void)
#include "cpu-all.h"
#include "svm.h"
#endif /* CPU_I386_H */

10
target-i386/exec.h
View File

@ -502,6 +502,15 @@ void update_fp_status(void);
void helper_hlt(void);
void helper_monitor(void);
void helper_mwait(void);
void helper_vmrun(target_ulong addr);
void helper_vmmcall(void);
void helper_vmload(target_ulong addr);
void helper_vmsave(target_ulong addr);
void helper_stgi(void);
void helper_clgi(void);
void helper_skinit(void);
void helper_invlpga(void);
void vmexit(uint64_t exit_code, uint64_t exit_info_1);
extern const uint8_t parity_table[256];
extern const uint8_t rclw_table[32];
@ -589,3 +598,4 @@ static inline int cpu_halted(CPUState *env) {
}
return EXCP_HALTED;
}

523
target-i386/helper.c
View File

@ -594,7 +594,18 @@ 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) {
@ -830,7 +841,17 @@ 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) {
@ -1077,7 +1098,17 @@ 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)
@ -1227,8 +1258,10 @@ int check_exception(int intno, int *error_code)
void raise_interrupt(int intno, int is_int, int error_code,
int next_eip_addend)
{
if (!is_int)
if (!is_int) {
svm_check_intercept_param(SVM_EXIT_EXCP_BASE + intno, error_code);
intno = check_exception(intno, &error_code);
}
env->exception_index = intno;
env->error_code = error_code;
@ -1671,7 +1704,7 @@ void helper_cpuid(void)
case 0x80000001:
EAX = env->cpuid_features;
EBX = 0;
ECX = 0;
ECX = env->cpuid_ext3_features;
EDX = env->cpuid_ext2_features;
break;
case 0x80000002:
@ -2745,6 +2778,9 @@ void helper_wrmsr(void)
case MSR_PAT:
env->pat = val;
break;
case MSR_VM_HSAVE_PA:
env->vm_hsave = val;
break;
#ifdef TARGET_X86_64
case MSR_LSTAR:
env->lstar = val;
@ -2796,6 +2832,9 @@ void helper_rdmsr(void)
case MSR_PAT:
val = env->pat;
break;
case MSR_VM_HSAVE_PA:
val = env->vm_hsave;
break;
#ifdef TARGET_X86_64
case MSR_LSTAR:
val = env->lstar;
@ -3877,3 +3916,483 @@ void tlb_fill(target_ulong addr, int is_write, int is_user, void *retaddr)
}
env = saved_env;
}
/* 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(target_ulong addr) { }
void helper_vmmcall(void) { }
void helper_vmload(target_ulong addr) { }
void helper_vmsave(target_ulong addr) { }
void helper_skinit(void) { }
void helper_invlpga(void) { }
void vmexit(uint64_t exit_code, uint64_t exit_info_1) { }
int svm_check_intercept_param(uint32_t type, uint64_t param)
{
return 0;
}
#else
static inline uint32_t
vmcb2cpu_attrib(uint16_t vmcb_attrib, uint32_t vmcb_base, uint32_t vmcb_limit)
{
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 */
}
static inline uint16_t cpu2vmcb_attrib(uint32_t cpu_attrib)
{
return ((cpu_attrib >> 8) & 0xff) /* Type, S, DPL, P */
| ((cpu_attrib & 0xf00000) >> 12); /* AVL, L, DB, G */
}
extern uint8_t *phys_ram_base;
void helper_vmrun(target_ulong addr)
{
uint32_t event_inj;
uint32_t int_ctl;
if (loglevel & CPU_LOG_TB_IN_ASM)
fprintf(logfile,"vmrun! " TARGET_FMT_lx "\n", addr);
env->vm_vmcb = addr;
regs_to_env();
/* save the current CPU state in the hsave page */
stq_phys(env->vm_hsave + offsetof(struct vmcb, save.gdtr.base), env->gdt.base);
stl_phys(env->vm_hsave + offsetof(struct vmcb, save.gdtr.limit), env->gdt.limit);
stq_phys(env->vm_hsave + offsetof(struct vmcb, save.idtr.base), env->idt.base);
stl_phys(env->vm_hsave + offsetof(struct vmcb, save.idtr.limit), env->idt.limit);
stq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr0), env->cr[0]);
stq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr2), env->cr[2]);
stq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr3), env->cr[3]);
stq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr4), env->cr[4]);
stq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr8), env->cr[8]);
stq_phys(env->vm_hsave + offsetof(struct vmcb, save.dr6), env->dr[6]);
stq_phys(env->vm_hsave + offsetof(struct vmcb, save.dr7), env->dr[7]);
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);
stq_phys(env->vm_hsave + offsetof(struct vmcb, save.rip), EIP);
stq_phys(env->vm_hsave + offsetof(struct vmcb, save.rsp), ESP);
stq_phys(env->vm_hsave + offsetof(struct vmcb, save.rax), EAX);
/* 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_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));
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));
env->idt.base = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.idtr.base));
env->idt.limit = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, save.idtr.limit));
/* clear exit_info_2 so we behave like the real hardware */
stq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_info_2), 0);
cpu_x86_update_cr0(env, ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr0)));
cpu_x86_update_cr4(env, ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr4)));
cpu_x86_update_cr3(env, ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr3)));
env->cr[2] = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr2));
int_ctl = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, control.int_ctl));
if (int_ctl & V_INTR_MASKING_MASK) {
env->cr[8] = int_ctl & V_TPR_MASK;
if (env->eflags & IF_MASK)
env->hflags |= HF_HIF_MASK;
}
#ifdef TARGET_X86_64
env->efer = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.efer));
env->hflags &= ~HF_LMA_MASK;
if (env->efer & MSR_EFER_LMA)
env->hflags |= HF_LMA_MASK;
#endif
env->eflags = 0;
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);
EIP = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rip));
env->eip = EIP;
ESP = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rsp));
EAX = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rax));
env->dr[7] = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.dr7));
env->dr[6] = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.dr6));
cpu_x86_set_cpl(env, ldub_phys(env->vm_vmcb + offsetof(struct vmcb, save.cpl)));
/* FIXME: guest state consistency checks */
switch(ldub_phys(env->vm_vmcb + offsetof(struct vmcb, control.tlb_ctl))) {
case TLB_CONTROL_DO_NOTHING:
break;
case TLB_CONTROL_FLUSH_ALL_ASID:
/* FIXME: this is not 100% correct but should work for now */
tlb_flush(env, 1);
break;
}
helper_stgi();
regs_to_env();
/* maybe we need to inject an event */
event_inj = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, control.event_inj));
if (event_inj & SVM_EVTINJ_VALID) {
uint8_t vector = event_inj & SVM_EVTINJ_VEC_MASK;
uint16_t valid_err = event_inj & SVM_EVTINJ_VALID_ERR;
uint32_t event_inj_err = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, control.event_inj_err));
stl_phys(env->vm_vmcb + offsetof(struct vmcb, control.event_inj), event_inj & ~SVM_EVTINJ_VALID);
if (loglevel & CPU_LOG_TB_IN_ASM)
fprintf(logfile, "Injecting(%#hx): ", valid_err);
/* FIXME: need to implement valid_err */
switch (event_inj & SVM_EVTINJ_TYPE_MASK) {
case SVM_EVTINJ_TYPE_INTR:
env->exception_index = vector;
env->error_code = event_inj_err;
env->exception_is_int = 1;
env->exception_next_eip = -1;
if (loglevel & CPU_LOG_TB_IN_ASM)
fprintf(logfile, "INTR");
break;
case SVM_EVTINJ_TYPE_NMI:
env->exception_index = vector;
env->error_code = event_inj_err;
env->exception_is_int = 1;
env->exception_next_eip = EIP;
if (loglevel & CPU_LOG_TB_IN_ASM)
fprintf(logfile, "NMI");
break;
case SVM_EVTINJ_TYPE_EXEPT:
env->exception_index = vector;
env->error_code = event_inj_err;
env->exception_is_int = 0;
env->exception_next_eip = -1;
if (loglevel & CPU_LOG_TB_IN_ASM)
fprintf(logfile, "EXEPT");
break;
case SVM_EVTINJ_TYPE_SOFT:
env->exception_index = vector;
env->error_code = event_inj_err;
env->exception_is_int = 1;
env->exception_next_eip = EIP;
if (loglevel & CPU_LOG_TB_IN_ASM)
fprintf(logfile, "SOFT");
break;
}
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->interrupt_request |= CPU_INTERRUPT_VIRQ;
cpu_loop_exit();
}
void helper_vmmcall(void)
{
if (loglevel & CPU_LOG_TB_IN_ASM)
fprintf(logfile,"vmmcall!\n");
}
void helper_vmload(target_ulong addr)
{
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);
#ifdef TARGET_X86_64
env->kernelgsbase = ldq_phys(addr + offsetof(struct vmcb, save.kernel_gs_base));
env->lstar = ldq_phys(addr + offsetof(struct vmcb, save.lstar));
env->cstar = ldq_phys(addr + offsetof(struct vmcb, save.cstar));
env->fmask = ldq_phys(addr + offsetof(struct vmcb, save.sfmask));
#endif
env->star = ldq_phys(addr + offsetof(struct vmcb, save.star));
env->sysenter_cs = ldq_phys(addr + offsetof(struct vmcb, save.sysenter_cs));
env->sysenter_esp = ldq_phys(addr + offsetof(struct vmcb, save.sysenter_esp));
env->sysenter_eip = ldq_phys(addr + offsetof(struct vmcb, save.sysenter_eip));
}
void helper_vmsave(target_ulong addr)
{
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);
#ifdef TARGET_X86_64
stq_phys(addr + offsetof(struct vmcb, save.kernel_gs_base), env->kernelgsbase);
stq_phys(addr + offsetof(struct vmcb, save.lstar), env->lstar);
stq_phys(addr + offsetof(struct vmcb, save.cstar), env->cstar);
stq_phys(addr + offsetof(struct vmcb, save.sfmask), env->fmask);
#endif
stq_phys(addr + offsetof(struct vmcb, save.star), env->star);
stq_phys(addr + offsetof(struct vmcb, save.sysenter_cs), env->sysenter_cs);
stq_phys(addr + offsetof(struct vmcb, save.sysenter_esp), env->sysenter_esp);
stq_phys(addr + offsetof(struct vmcb, save.sysenter_eip), env->sysenter_eip);
}
void helper_skinit(void)
{
if (loglevel & CPU_LOG_TB_IN_ASM)
fprintf(logfile,"skinit!\n");
}
void helper_invlpga(void)
{
tlb_flush(env, 0);
}
int svm_check_intercept_param(uint32_t type, uint64_t param)
{
switch(type) {
case SVM_EXIT_READ_CR0 ... SVM_EXIT_READ_CR0 + 8:
if (INTERCEPTEDw(_cr_read, (1 << (type - SVM_EXIT_READ_CR0)))) {
vmexit(type, param);
return 1;
}
break;
case SVM_EXIT_READ_DR0 ... SVM_EXIT_READ_DR0 + 8:
if (INTERCEPTEDw(_dr_read, (1 << (type - SVM_EXIT_READ_DR0)))) {
vmexit(type, param);
return 1;
}
break;
case SVM_EXIT_WRITE_CR0 ... SVM_EXIT_WRITE_CR0 + 8:
if (INTERCEPTEDw(_cr_write, (1 << (type - SVM_EXIT_WRITE_CR0)))) {
vmexit(type, param);
return 1;
}
break;
case SVM_EXIT_WRITE_DR0 ... SVM_EXIT_WRITE_DR0 + 8:
if (INTERCEPTEDw(_dr_write, (1 << (type - SVM_EXIT_WRITE_DR0)))) {
vmexit(type, param);
return 1;
}
break;
case SVM_EXIT_EXCP_BASE ... SVM_EXIT_EXCP_BASE + 16:
if (INTERCEPTEDl(_exceptions, (1 << (type - SVM_EXIT_EXCP_BASE)))) {
vmexit(type, param);
return 1;
}
break;
case SVM_EXIT_IOIO:
if (INTERCEPTED(1ULL << INTERCEPT_IOIO_PROT)) {
/* 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 port = (uint16_t) (param >> 16);
if(ldub_phys(addr + port / 8) & (1 << (port % 8)))
vmexit(type, param);
}
break;
case SVM_EXIT_MSR:
if (INTERCEPTED(1ULL << INTERCEPT_MSR_PROT)) {
/* 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));
switch((uint32_t)ECX) {
case 0 ... 0x1fff:
T0 = (ECX * 2) % 8;
T1 = ECX / 8;
break;
case 0xc0000000 ... 0xc0001fff:
T0 = (8192 + ECX - 0xc0000000) * 2;
T1 = (T0 / 8);
T0 %= 8;
break;
case 0xc0010000 ... 0xc0011fff:
T0 = (16384 + ECX - 0xc0010000) * 2;
T1 = (T0 / 8);
T0 %= 8;
break;
default:
vmexit(type, param);
return 1;
}
if (ldub_phys(addr + T1) & ((1 << param) << T0))
vmexit(type, param);
return 1;
}
break;
default:
if (INTERCEPTED((1ULL << ((type - SVM_EXIT_INTR) + INTERCEPT_INTR)))) {
vmexit(type, param);
return 1;
}
break;
}
return 0;
}
void vmexit(uint64_t exit_code, uint64_t exit_info_1)
{
uint32_t int_ctl;
if (loglevel & CPU_LOG_TB_IN_ASM)
fprintf(logfile,"vmexit(%016" PRIx64 ", %016" PRIx64 ", %016" PRIx64 ", " TARGET_FMT_lx ")!\n",
exit_code, exit_info_1,
ldq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_info_2)),
EIP);
/* 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);
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);
stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.idtr.base), env->idt.base);
stl_phys(env->vm_vmcb + offsetof(struct vmcb, save.idtr.limit), env->idt.limit);
stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.efer), env->efer);
stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr0), env->cr[0]);
stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr2), env->cr[2]);
stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr3), env->cr[3]);
stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr4), env->cr[4]);
if ((int_ctl = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, control.int_ctl))) & V_INTR_MASKING_MASK) {
int_ctl &= ~V_TPR_MASK;
int_ctl |= env->cr[8] & V_TPR_MASK;
stl_phys(env->vm_vmcb + offsetof(struct vmcb, control.int_ctl), int_ctl);
}
stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rflags), compute_eflags());
stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rip), env->eip);
stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rsp), ESP);
stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rax), EAX);
stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.dr7), env->dr[7]);
stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.dr6), env->dr[6]);
stb_phys(env->vm_vmcb + offsetof(struct vmcb, save.cpl), env->hflags & HF_CPL_MASK);
/* Reload the host state from vm_hsave */
env->hflags &= ~HF_HIF_MASK;
env->intercept = 0;
env->intercept_exceptions = 0;
env->interrupt_request &= ~CPU_INTERRUPT_VIRQ;
env->gdt.base = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.gdtr.base));
env->gdt.limit = ldl_phys(env->vm_hsave + offsetof(struct vmcb, save.gdtr.limit));
env->idt.base = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.idtr.base));
env->idt.limit = ldl_phys(env->vm_hsave + offsetof(struct vmcb, save.idtr.limit));
cpu_x86_update_cr0(env, ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr0)) | CR0_PE_MASK);
cpu_x86_update_cr4(env, ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr4)));
cpu_x86_update_cr3(env, ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr3)));
if (int_ctl & V_INTR_MASKING_MASK)
env->cr[8] = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr8));
/* we need to set the efer after the crs so the hidden flags get set properly */
#ifdef TARGET_X86_64
env->efer = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.efer));
env->hflags &= ~HF_LMA_MASK;
if (env->efer & MSR_EFER_LMA)
env->hflags |= HF_LMA_MASK;
#endif
env->eflags = 0;
load_eflags(ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.rflags)),
~(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);
EIP = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.rip));
ESP = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.rsp));
EAX = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.rax));
env->dr[6] = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.dr6));
env->dr[7] = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.dr7));
/* other setups */
cpu_x86_set_cpl(env, 0);
stl_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_code_hi), (uint32_t)(exit_code >> 32));
stl_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_code), exit_code);
stq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_info_1), exit_info_1);
helper_clgi();
/* FIXME: Resets the current ASID register to zero (host ASID). */
/* Clears the V_IRQ and V_INTR_MASKING bits inside the processor. */
/* Clears the TSC_OFFSET inside the processor. */
/* If the host is in PAE mode, the processor reloads the host's PDPEs
from the page table indicated the host's CR3. If the PDPEs contain
illegal state, the processor causes a shutdown. */
/* Forces CR0.PE = 1, RFLAGS.VM = 0. */
env->cr[0] |= CR0_PE_MASK;
env->eflags &= ~VM_MASK;
/* Disables all breakpoints in the host DR7 register. */
/* Checks the reloaded host state for consistency. */
/* If the host's rIP reloaded by #VMEXIT is outside the limit of the
host's code segment or non-canonical (in the case of long mode), a
#GP fault is delivered inside the host.) */
/* remove any pending exception */
env->exception_index = -1;
env->error_code = 0;
env->old_exception = -1;
regs_to_env();
cpu_loop_exit();
}
#endif

15
target-i386/helper2.c
View File

@ -27,6 +27,7 @@
#include "cpu.h"
#include "exec-all.h"
#include "svm.h"
//#define DEBUG_MMU
@ -111,10 +112,11 @@ CPUX86State *cpu_x86_init(void)
CPUID_CX8 | CPUID_PGE | CPUID_CMOV |
CPUID_PAT);
env->pat = 0x0007040600070406ULL;
env->cpuid_ext3_features = CPUID_EXT3_SVM;
env->cpuid_ext_features = CPUID_EXT_SSE3;
env->cpuid_features |= CPUID_FXSR | CPUID_MMX | CPUID_SSE | CPUID_SSE2 | CPUID_PAE | CPUID_SEP;
env->cpuid_features |= CPUID_APIC;
env->cpuid_xlevel = 0x80000006;
env->cpuid_xlevel = 0x8000000e;
{
const char *model_id = "QEMU Virtual CPU version " QEMU_VERSION;
int c, len, i;
@ -131,7 +133,6 @@ CPUX86State *cpu_x86_init(void)
/* currently not enabled for std i386 because not fully tested */
env->cpuid_ext2_features = (env->cpuid_features & 0x0183F3FF);
env->cpuid_ext2_features |= CPUID_EXT2_LM | CPUID_EXT2_SYSCALL | CPUID_EXT2_NX;
env->cpuid_xlevel = 0x80000008;
/* these features are needed for Win64 and aren't fully implemented */
env->cpuid_features |= CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA;
@ -162,6 +163,7 @@ void cpu_reset(CPUX86State *env)
#ifdef CONFIG_SOFTMMU
env->hflags |= HF_SOFTMMU_MASK;
#endif
env->hflags |= HF_GIF_MASK;
cpu_x86_update_cr0(env, 0x60000010);
env->a20_mask = 0xffffffff;
@ -865,7 +867,6 @@ int cpu_x86_handle_mmu_fault(CPUX86State *env, target_ulong addr,
do_fault_protect:
error_code = PG_ERROR_P_MASK;
do_fault:
env->cr[2] = addr;
error_code |= (is_write << PG_ERROR_W_BIT);
if (is_user)
error_code |= PG_ERROR_U_MASK;
@ -873,8 +874,16 @@ 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);
} 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;
}

88
target-i386/op.c
View File

@ -513,8 +513,6 @@ typedef union UREG64 {
} UREG64;
#endif
#ifdef TARGET_X86_64
#define PARAMQ1 \
({\
UREG64 __p;\
@ -523,6 +521,8 @@ typedef union UREG64 {
__p.q;\
})
#ifdef TARGET_X86_64
void OPPROTO op_movq_T0_im64(void)
{
T0 = PARAMQ1;
@ -1242,12 +1242,52 @@ void OPPROTO op_ltr_T0(void)
helper_ltr_T0();
}
/* CR registers access */
/* CR registers access. */
void OPPROTO op_movl_crN_T0(void)
{
helper_movl_crN_T0(PARAM1);
}
/* These pseudo-opcodes check for SVM intercepts. */
void OPPROTO op_svm_check_intercept(void)
{
A0 = PARAM1 & PARAM2;
svm_check_intercept(PARAMQ1);
}
void OPPROTO op_svm_check_intercept_param(void)
{
A0 = PARAM1 & PARAM2;
svm_check_intercept_param(PARAMQ1, T1);
}
void OPPROTO op_svm_vmexit(void)
{
A0 = PARAM1 & PARAM2;
vmexit(PARAMQ1, T1);
}
void OPPROTO op_geneflags(void)
{
CC_SRC = cc_table[CC_OP].compute_all();
}
/* This pseudo-opcode checks for IO intercepts. */
#if !defined(CONFIG_USER_ONLY)
void OPPROTO op_svm_check_intercept_io(void)
{
A0 = PARAM1 & PARAM2;
/* PARAMQ1 = TYPE (0 = OUT, 1 = IN; 4 = STRING; 8 = REP)
T0 = PORT
T1 = next eip */
stq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_info_2), T1);
/* ASIZE does not appear on real hw */
svm_check_intercept_param(SVM_EXIT_IOIO,
(PARAMQ1 & ~SVM_IOIO_ASIZE_MASK) |
((T0 & 0xffff) << 16));
}
#endif
#if !defined(CONFIG_USER_ONLY)
void OPPROTO op_movtl_T0_cr8(void)
{
@ -2452,3 +2492,45 @@ void OPPROTO op_emms(void)
#define SHIFT 1
#include "ops_sse.h"
/* Secure Virtual Machine ops */
void OPPROTO op_vmrun(void)
{
helper_vmrun(EAX);
}
void OPPROTO op_vmmcall(void)
{
helper_vmmcall();
}
void OPPROTO op_vmload(void)
{
helper_vmload(EAX);
}
void OPPROTO op_vmsave(void)
{
helper_vmsave(EAX);
}
void OPPROTO op_stgi(void)
{
helper_stgi();
}
void OPPROTO op_clgi(void)
{
helper_clgi();
}
void OPPROTO op_skinit(void)
{
helper_skinit();
}
void OPPROTO op_invlpga(void)
{
helper_invlpga();
}

243
target-i386/translate.c
View File

@ -1995,6 +1995,98 @@ static void gen_movl_seg_T0(DisasContext *s, int seg_reg, target_ulong cur_eip)
}
}
#ifdef TARGET_X86_64
#define SVM_movq_T1_im(x) gen_op_movq_T1_im64((x) >> 32, x)
#else
#define SVM_movq_T1_im(x) gen_op_movl_T1_im(x)
#endif
static inline int
gen_svm_check_io(DisasContext *s, target_ulong pc_start, uint64_t type)
{
#if !defined(CONFIG_USER_ONLY)
if(s->flags & (1ULL << INTERCEPT_IOIO_PROT)) {
if (s->cc_op != CC_OP_DYNAMIC)
gen_op_set_cc_op(s->cc_op);
SVM_movq_T1_im(s->pc - s->cs_base);
gen_jmp_im(pc_start - s->cs_base);
gen_op_geneflags();
gen_op_svm_check_intercept_io((uint32_t)(type >> 32), (uint32_t)type);
s->cc_op = CC_OP_DYNAMIC;
/* FIXME: maybe we could move the io intercept vector to the TB as well
so we know if this is an EOB or not ... let's assume it's not
for now. */
}
#endif
return 0;
}
static inline int svm_is_rep(int prefixes)
{
return ((prefixes & (PREFIX_REPZ | PREFIX_REPNZ)) ? 8 : 0);
}
static inline int
gen_svm_check_intercept_param(DisasContext *s, target_ulong pc_start,
uint64_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);
s->cc_op = CC_OP_DYNAMIC;
}
gen_jmp_im(pc_start - s->cs_base);
SVM_movq_T1_im(param);
gen_op_geneflags();
gen_op_svm_check_intercept_param((uint32_t)(type >> 32), (uint32_t)type);
/* 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);
s->cc_op = CC_OP_DYNAMIC;
}
gen_jmp_im(pc_start - s->cs_base);
SVM_movq_T1_im(param);
gen_op_geneflags();
gen_op_svm_check_intercept_param((uint32_t)(type >> 32), (uint32_t)type);
/* 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);
s->cc_op = CC_OP_EFLAGS;
}
gen_jmp_im(pc_start - s->cs_base);
SVM_movq_T1_im(param);
gen_op_geneflags();
gen_op_svm_vmexit(type >> 32, type);
/* we can optimize this one so TBs don't get longer
than up to vmexit */
gen_eob(s);
return 1;
}
}
return 0;
}
static inline int
gen_svm_check_intercept(DisasContext *s, target_ulong pc_start, uint64_t type)
{
return gen_svm_check_intercept_param(s, pc_start, type, 0);
}
static inline void gen_stack_update(DisasContext *s, int addend)
{
#ifdef TARGET_X86_64
@ -4880,6 +4972,12 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
else
ot = dflag ? OT_LONG : OT_WORD;
gen_check_io(s, ot, 1, pc_start - s->cs_base);
gen_op_mov_TN_reg[OT_WORD][0][R_EDX]();
gen_op_andl_T0_ffff();
if (gen_svm_check_io(s, pc_start,
SVM_IOIO_TYPE_MASK | (1 << (4+ot)) |
svm_is_rep(prefixes) | 4 | (1 << (7+s->aflag))))
break;
if (prefixes & (PREFIX_REPZ | PREFIX_REPNZ)) {
gen_repz_ins(s, ot, pc_start - s->cs_base, s->pc - s->cs_base);
} else {
@ -4893,6 +4991,12 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
else
ot = dflag ? OT_LONG : OT_WORD;
gen_check_io(s, ot, 1, pc_start - s->cs_base);
gen_op_mov_TN_reg[OT_WORD][0][R_EDX]();
gen_op_andl_T0_ffff();
if (gen_svm_check_io(s, pc_start,
(1 << (4+ot)) | svm_is_rep(prefixes) |
4 | (1 << (7+s->aflag))))
break;
if (prefixes & (PREFIX_REPZ | PREFIX_REPNZ)) {
gen_repz_outs(s, ot, pc_start - s->cs_base, s->pc - s->cs_base);
} else {
@ -4902,6 +5006,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
/************************/
/* port I/O */
case 0xe4:
case 0xe5:
if ((b & 1) == 0)
@ -4911,6 +5016,10 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
val = ldub_code(s->pc++);
gen_op_movl_T0_im(val);
gen_check_io(s, ot, 0, pc_start - s->cs_base);
if (gen_svm_check_io(s, pc_start,
SVM_IOIO_TYPE_MASK | svm_is_rep(prefixes) |
(1 << (4+ot))))
break;
gen_op_in[ot]();
gen_op_mov_reg_T1[ot][R_EAX]();
break;
@ -4923,6 +5032,9 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
val = ldub_code(s->pc++);
gen_op_movl_T0_im(val);
gen_check_io(s, ot, 0, pc_start - s->cs_base);
if (gen_svm_check_io(s, pc_start, svm_is_rep(prefixes) |
(1 << (4+ot))))
break;
gen_op_mov_TN_reg[ot][1][R_EAX]();
gen_op_out[ot]();
break;
@ -4935,6 +5047,10 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
gen_op_mov_TN_reg[OT_WORD][0][R_EDX]();
gen_op_andl_T0_ffff();
gen_check_io(s, ot, 0, pc_start - s->cs_base);
if (gen_svm_check_io(s, pc_start,
SVM_IOIO_TYPE_MASK | svm_is_rep(prefixes) |
(1 << (4+ot))))
break;
gen_op_in[ot]();
gen_op_mov_reg_T1[ot][R_EAX]();
break;
@ -4947,6 +5063,9 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
gen_op_mov_TN_reg[OT_WORD][0][R_EDX]();
gen_op_andl_T0_ffff();
gen_check_io(s, ot, 0, pc_start - s->cs_base);
if (gen_svm_check_io(s, pc_start,
svm_is_rep(prefixes) | (1 << (4+ot))))
break;
gen_op_mov_TN_reg[ot][1][R_EAX]();
gen_op_out[ot]();
break;
@ -5004,6 +5123,8 @@ 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;
if (!s->pe) {
/* real mode */
gen_op_iret_real(s->dflag);
@ -5125,6 +5246,8 @@ 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;
if (s->vm86 && s->iopl != 3) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
@ -5135,6 +5258,8 @@ 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;
if (s->vm86 && s->iopl != 3) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
@ -5348,6 +5473,9 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
/* XXX: correct lock test for all insn */
if (prefixes & PREFIX_LOCK)
goto illegal_op;
if (prefixes & PREFIX_REPZ) {
gen_svm_check_intercept(s, pc_start, SVM_EXIT_PAUSE);
}
break;
case 0x9b: /* fwait */
if ((s->flags & (HF_MP_MASK | HF_TS_MASK)) ==
@ -5361,10 +5489,14 @@ 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 {
@ -5374,12 +5506,16 @@ 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);
gen_op_into(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;
#if 1
gen_debug(s, pc_start - s->cs_base);
#else
@ -5415,6 +5551,8 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
gen_op_set_inhibit_irq();
/* give a chance to handle pending irqs */
gen_jmp_im(s->pc - s->cs_base);
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_VINTR))
break;
gen_eob(s);
} else {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
@ -5507,13 +5645,21 @@ 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 (b & 2)
int retval = 0;
if (b & 2) {
retval = gen_svm_check_intercept_param(s, pc_start, SVM_EXIT_MSR, 0);
gen_op_rdmsr();
else
} else {
retval = gen_svm_check_intercept_param(s, pc_start, SVM_EXIT_MSR, 1);
gen_op_wrmsr();
}
if(retval)
gen_eob(s);
}
break;
case 0x131: /* rdtsc */
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_RDTSC))
break;
gen_jmp_im(pc_start - s->cs_base);
gen_op_rdtsc();
break;
@ -5576,12 +5722,16 @@ 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;
gen_op_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);
@ -5597,6 +5747,8 @@ 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_op_movl_T0_env(offsetof(CPUX86State,ldt.selector));
ot = OT_WORD;
if (mod == 3)
@ -5609,6 +5761,8 @@ 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_ldst_modrm(s, modrm, OT_WORD, OR_TMP0, 0);
gen_jmp_im(pc_start - s->cs_base);
gen_op_lldt_T0();
@ -5617,6 +5771,8 @@ 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_op_movl_T0_env(offsetof(CPUX86State,tr.selector));
ot = OT_WORD;
if (mod == 3)
@ -5629,6 +5785,8 @@ 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_ldst_modrm(s, modrm, OT_WORD, OR_TMP0, 0);
gen_jmp_im(pc_start - s->cs_base);
gen_op_ltr_T0();
@ -5660,6 +5818,8 @@ 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_lea_modrm(s, modrm, &reg_addr, &offset_addr);
gen_op_movl_T0_env(offsetof(CPUX86State, gdt.limit));
gen_op_st_T0_A0[OT_WORD + s->mem_index]();
@ -5676,6 +5836,8 @@ 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) {
@ -5700,6 +5862,8 @@ 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);
gen_op_mwait();
gen_eob(s);
@ -5708,6 +5872,8 @@ 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_lea_modrm(s, modrm, &reg_addr, &offset_addr);
gen_op_movl_T0_env(offsetof(CPUX86State, idt.limit));
gen_op_st_T0_A0[OT_WORD + s->mem_index]();
@ -5720,11 +5886,63 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
break;
case 2: /* lgdt */
case 3: /* lidt */
if (mod == 3)
goto illegal_op;
if (s->cpl != 0) {
if (mod == 3) {
switch(rm) {
case 0: /* VMRUN */
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_VMRUN))
break;
if (s->cc_op != CC_OP_DYNAMIC)
gen_op_set_cc_op(s->cc_op);
gen_jmp_im(s->pc - s->cs_base);
gen_op_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 */
gen_op_vmmcall();
break;
case 2: /* VMLOAD */
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_VMLOAD))
break;
gen_op_vmload();
break;
case 3: /* VMSAVE */
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_VMSAVE))
break;
gen_op_vmsave();
break;
case 4: /* STGI */
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_STGI))
break;
gen_op_stgi();
break;
case 5: /* CLGI */
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_CLGI))
break;
gen_op_clgi();
break;
case 6: /* SKINIT */
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_SKINIT))
break;
gen_op_skinit();
break;
case 7: /* INVLPGA */
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_INVLPGA))
break;
gen_op_invlpga();
break;
default:
goto illegal_op;
}
} 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_lea_modrm(s, modrm, &reg_addr, &offset_addr);
gen_op_ld_T1_A0[OT_WORD + s->mem_index]();
gen_add_A0_im(s, 2);
@ -5741,6 +5959,8 @@ 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_op_movl_T0_env(offsetof(CPUX86State,cr[0]));
gen_ldst_modrm(s, modrm, OT_WORD, OR_TMP0, 1);
break;
@ -5748,6 +5968,8 @@ 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_ldst_modrm(s, modrm, OT_WORD, OR_TMP0, 0);
gen_op_lmsw_T0();
gen_jmp_im(s->pc - s->cs_base);
@ -5772,6 +5994,8 @@ 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);
gen_op_invlpg_A0();
gen_jmp_im(s->pc - s->cs_base);
@ -5788,6 +6012,8 @@ 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_INVD))
break;
/* nothing to do */
}
break;
@ -5908,11 +6134,13 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
case 4:
case 8:
if (b & 2) {
gen_svm_check_intercept(s, pc_start, SVM_EXIT_WRITE_CR0 + reg);
gen_op_mov_TN_reg[ot][0][rm]();
gen_op_movl_crN_T0(reg);
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)
gen_op_movtl_T0_cr8();
@ -5945,11 +6173,13 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
if (reg == 4 || reg == 5 || reg >= 8)
goto illegal_op;
if (b & 2) {
gen_svm_check_intercept(s, pc_start, SVM_EXIT_WRITE_DR0 + reg);
gen_op_mov_TN_reg[ot][0][rm]();
gen_op_movl_drN_T0(reg);
gen_jmp_im(s->pc - s->cs_base);
gen_eob(s);
} else {
gen_svm_check_intercept(s, pc_start, SVM_EXIT_READ_DR0 + reg);
gen_op_movtl_T0_env(offsetof(CPUX86State,dr[reg]));
gen_op_mov_reg_T0[ot][rm]();
}
@ -5959,6 +6189,7 @@ 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 {
gen_svm_check_intercept(s, pc_start, SVM_EXIT_WRITE_CR0);
gen_op_clts();
/* abort block because static cpu state changed */
gen_jmp_im(s->pc - s->cs_base);
@ -6050,6 +6281,8 @@ 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;
if (!(s->flags & HF_SMM_MASK))
goto illegal_op;
if (s->cc_op != CC_OP_DYNAMIC) {