598cf1c805
* RTC fixes (Gaohuai, Igor) * Memory leak fixes (Li Qiang, me) * Ctrl-a b regression (Marc-André) * Stubs cleanups and fixes (Leif, me) * hxtool tweak (me) * HAX support (Vincent) * QemuThread, exec.c and SCSI fixes (Roman, Xinhua, me) * PC_COMPAT_2_8 fix (Marcelo) * stronger bitmap assertions (Peter) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQExBAABCAAbBQJYggc9FBxwYm9uemluaUByZWRoYXQuY29tAAoJEL/70l94x66D 5pMH/092iVHw1la8VmphQd8W7hkCHckvVbwaEJ+n4BP8MjeUNmYFJX+op9Qlpqfe ekYqQgK69v2UwuofVK2gqS+Y2EyFHivTESk5pS3SM3lTewV1fzCM/HVG3pTxV/ol V+eBnp+shrfNG3Eg7YThTqx4LkDUp24Pd3HJVblQZMVpqGzL2xUuUQzSf8F/eeQJ xO61pm0ovpCY5MCg3kPLx8GIkPAmcXo5jhMCTz5aLnQW6TO/mwx271a4UE2RTLZ7 cFjNhxdGSzlnn2RwId4HVYWGU42taW6mpa8NX1hVVUXa1A2qlAfi5N/WLaH0aGYR J5ZTIaXdPUBx2SrUmd8udj4a818= =H5BQ -----END PGP SIGNATURE----- Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging * QOM interface fix (Eduardo) * RTC fixes (Gaohuai, Igor) * Memory leak fixes (Li Qiang, me) * Ctrl-a b regression (Marc-André) * Stubs cleanups and fixes (Leif, me) * hxtool tweak (me) * HAX support (Vincent) * QemuThread, exec.c and SCSI fixes (Roman, Xinhua, me) * PC_COMPAT_2_8 fix (Marcelo) * stronger bitmap assertions (Peter) # gpg: Signature made Fri 20 Jan 2017 12:49:01 GMT # gpg: using RSA key 0xBFFBD25F78C7AE83 # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" # Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1 # Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83 * remotes/bonzini/tags/for-upstream: (35 commits) pc.h: move x-mach-use-reliable-get-clock compat entry to PC_COMPAT_2_8 bitmap: assert that start and nr are non negative Revert "win32: don't run subprocess tests on Mingw32 platform" hax: add Darwin support Plumb the HAXM-based hardware acceleration support target/i386: Add Intel HAX files kvm: move cpu synchronization code KVM: PPC: eliminate unnecessary duplicate constants ramblock-notifier: new char: fix ctrl-a b not working exec: Add missing rcu_read_unlock x86: ioapic: fix fail migration when irqchip=split x86: ioapic: dump version for "info ioapic" x86: ioapic: add traces for ioapic hxtool: emit Texinfo headings as @subsection qemu-thread: fix qemu_thread_set_name() race in qemu_thread_create() serial: fix memory leak in serial exit scsi-block: fix direction of BYTCHK test for VERIFY commands pc: fix crash in rtc_set_memory() if initial cpu is marked as hotplugged acpi: filter based on CONFIG_ACPI_X86 rather than TARGET ... # Conflicts: # include/hw/i386/pc.h
1484 lines
46 KiB
C
1484 lines
46 KiB
C
/*
|
|
* i386 helpers (without register variable usage)
|
|
*
|
|
* Copyright (c) 2003 Fabrice Bellard
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "qemu/osdep.h"
|
|
#include "cpu.h"
|
|
#include "exec/exec-all.h"
|
|
#include "sysemu/kvm.h"
|
|
#include "kvm_i386.h"
|
|
#ifndef CONFIG_USER_ONLY
|
|
#include "sysemu/sysemu.h"
|
|
#include "sysemu/hw_accel.h"
|
|
#include "monitor/monitor.h"
|
|
#include "hw/i386/apic_internal.h"
|
|
#endif
|
|
|
|
static void cpu_x86_version(CPUX86State *env, int *family, int *model)
|
|
{
|
|
int cpuver = env->cpuid_version;
|
|
|
|
if (family == NULL || model == NULL) {
|
|
return;
|
|
}
|
|
|
|
*family = (cpuver >> 8) & 0x0f;
|
|
*model = ((cpuver >> 12) & 0xf0) + ((cpuver >> 4) & 0x0f);
|
|
}
|
|
|
|
/* Broadcast MCA signal for processor version 06H_EH and above */
|
|
int cpu_x86_support_mca_broadcast(CPUX86State *env)
|
|
{
|
|
int family = 0;
|
|
int model = 0;
|
|
|
|
cpu_x86_version(env, &family, &model);
|
|
if ((family == 6 && model >= 14) || family > 6) {
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/***********************************************************/
|
|
/* x86 debug */
|
|
|
|
static const char *cc_op_str[CC_OP_NB] = {
|
|
"DYNAMIC",
|
|
"EFLAGS",
|
|
|
|
"MULB",
|
|
"MULW",
|
|
"MULL",
|
|
"MULQ",
|
|
|
|
"ADDB",
|
|
"ADDW",
|
|
"ADDL",
|
|
"ADDQ",
|
|
|
|
"ADCB",
|
|
"ADCW",
|
|
"ADCL",
|
|
"ADCQ",
|
|
|
|
"SUBB",
|
|
"SUBW",
|
|
"SUBL",
|
|
"SUBQ",
|
|
|
|
"SBBB",
|
|
"SBBW",
|
|
"SBBL",
|
|
"SBBQ",
|
|
|
|
"LOGICB",
|
|
"LOGICW",
|
|
"LOGICL",
|
|
"LOGICQ",
|
|
|
|
"INCB",
|
|
"INCW",
|
|
"INCL",
|
|
"INCQ",
|
|
|
|
"DECB",
|
|
"DECW",
|
|
"DECL",
|
|
"DECQ",
|
|
|
|
"SHLB",
|
|
"SHLW",
|
|
"SHLL",
|
|
"SHLQ",
|
|
|
|
"SARB",
|
|
"SARW",
|
|
"SARL",
|
|
"SARQ",
|
|
|
|
"BMILGB",
|
|
"BMILGW",
|
|
"BMILGL",
|
|
"BMILGQ",
|
|
|
|
"ADCX",
|
|
"ADOX",
|
|
"ADCOX",
|
|
|
|
"CLR",
|
|
};
|
|
|
|
static void
|
|
cpu_x86_dump_seg_cache(CPUX86State *env, FILE *f, fprintf_function cpu_fprintf,
|
|
const char *name, struct SegmentCache *sc)
|
|
{
|
|
#ifdef TARGET_X86_64
|
|
if (env->hflags & HF_CS64_MASK) {
|
|
cpu_fprintf(f, "%-3s=%04x %016" PRIx64 " %08x %08x", name,
|
|
sc->selector, sc->base, sc->limit, sc->flags & 0x00ffff00);
|
|
} else
|
|
#endif
|
|
{
|
|
cpu_fprintf(f, "%-3s=%04x %08x %08x %08x", name, sc->selector,
|
|
(uint32_t)sc->base, sc->limit, sc->flags & 0x00ffff00);
|
|
}
|
|
|
|
if (!(env->hflags & HF_PE_MASK) || !(sc->flags & DESC_P_MASK))
|
|
goto done;
|
|
|
|
cpu_fprintf(f, " DPL=%d ", (sc->flags & DESC_DPL_MASK) >> DESC_DPL_SHIFT);
|
|
if (sc->flags & DESC_S_MASK) {
|
|
if (sc->flags & DESC_CS_MASK) {
|
|
cpu_fprintf(f, (sc->flags & DESC_L_MASK) ? "CS64" :
|
|
((sc->flags & DESC_B_MASK) ? "CS32" : "CS16"));
|
|
cpu_fprintf(f, " [%c%c", (sc->flags & DESC_C_MASK) ? 'C' : '-',
|
|
(sc->flags & DESC_R_MASK) ? 'R' : '-');
|
|
} else {
|
|
cpu_fprintf(f,
|
|
(sc->flags & DESC_B_MASK || env->hflags & HF_LMA_MASK)
|
|
? "DS " : "DS16");
|
|
cpu_fprintf(f, " [%c%c", (sc->flags & DESC_E_MASK) ? 'E' : '-',
|
|
(sc->flags & DESC_W_MASK) ? 'W' : '-');
|
|
}
|
|
cpu_fprintf(f, "%c]", (sc->flags & DESC_A_MASK) ? 'A' : '-');
|
|
} else {
|
|
static const char *sys_type_name[2][16] = {
|
|
{ /* 32 bit mode */
|
|
"Reserved", "TSS16-avl", "LDT", "TSS16-busy",
|
|
"CallGate16", "TaskGate", "IntGate16", "TrapGate16",
|
|
"Reserved", "TSS32-avl", "Reserved", "TSS32-busy",
|
|
"CallGate32", "Reserved", "IntGate32", "TrapGate32"
|
|
},
|
|
{ /* 64 bit mode */
|
|
"<hiword>", "Reserved", "LDT", "Reserved", "Reserved",
|
|
"Reserved", "Reserved", "Reserved", "Reserved",
|
|
"TSS64-avl", "Reserved", "TSS64-busy", "CallGate64",
|
|
"Reserved", "IntGate64", "TrapGate64"
|
|
}
|
|
};
|
|
cpu_fprintf(f, "%s",
|
|
sys_type_name[(env->hflags & HF_LMA_MASK) ? 1 : 0]
|
|
[(sc->flags & DESC_TYPE_MASK)
|
|
>> DESC_TYPE_SHIFT]);
|
|
}
|
|
done:
|
|
cpu_fprintf(f, "\n");
|
|
}
|
|
|
|
#ifndef CONFIG_USER_ONLY
|
|
|
|
/* ARRAY_SIZE check is not required because
|
|
* DeliveryMode(dm) has a size of 3 bit.
|
|
*/
|
|
static inline const char *dm2str(uint32_t dm)
|
|
{
|
|
static const char *str[] = {
|
|
"Fixed",
|
|
"...",
|
|
"SMI",
|
|
"...",
|
|
"NMI",
|
|
"INIT",
|
|
"...",
|
|
"ExtINT"
|
|
};
|
|
return str[dm];
|
|
}
|
|
|
|
static void dump_apic_lvt(FILE *f, fprintf_function cpu_fprintf,
|
|
const char *name, uint32_t lvt, bool is_timer)
|
|
{
|
|
uint32_t dm = (lvt & APIC_LVT_DELIV_MOD) >> APIC_LVT_DELIV_MOD_SHIFT;
|
|
cpu_fprintf(f,
|
|
"%s\t 0x%08x %s %-5s %-6s %-7s %-12s %-6s",
|
|
name, lvt,
|
|
lvt & APIC_LVT_INT_POLARITY ? "active-lo" : "active-hi",
|
|
lvt & APIC_LVT_LEVEL_TRIGGER ? "level" : "edge",
|
|
lvt & APIC_LVT_MASKED ? "masked" : "",
|
|
lvt & APIC_LVT_DELIV_STS ? "pending" : "",
|
|
!is_timer ?
|
|
"" : lvt & APIC_LVT_TIMER_PERIODIC ?
|
|
"periodic" : lvt & APIC_LVT_TIMER_TSCDEADLINE ?
|
|
"tsc-deadline" : "one-shot",
|
|
dm2str(dm));
|
|
if (dm != APIC_DM_NMI) {
|
|
cpu_fprintf(f, " (vec %u)\n", lvt & APIC_VECTOR_MASK);
|
|
} else {
|
|
cpu_fprintf(f, "\n");
|
|
}
|
|
}
|
|
|
|
/* ARRAY_SIZE check is not required because
|
|
* destination shorthand has a size of 2 bit.
|
|
*/
|
|
static inline const char *shorthand2str(uint32_t shorthand)
|
|
{
|
|
const char *str[] = {
|
|
"no-shorthand", "self", "all-self", "all"
|
|
};
|
|
return str[shorthand];
|
|
}
|
|
|
|
static inline uint8_t divider_conf(uint32_t divide_conf)
|
|
{
|
|
uint8_t divide_val = ((divide_conf & 0x8) >> 1) | (divide_conf & 0x3);
|
|
|
|
return divide_val == 7 ? 1 : 2 << divide_val;
|
|
}
|
|
|
|
static inline void mask2str(char *str, uint32_t val, uint8_t size)
|
|
{
|
|
while (size--) {
|
|
*str++ = (val >> size) & 1 ? '1' : '0';
|
|
}
|
|
*str = 0;
|
|
}
|
|
|
|
#define MAX_LOGICAL_APIC_ID_MASK_SIZE 16
|
|
|
|
static void dump_apic_icr(FILE *f, fprintf_function cpu_fprintf,
|
|
APICCommonState *s, CPUX86State *env)
|
|
{
|
|
uint32_t icr = s->icr[0], icr2 = s->icr[1];
|
|
uint8_t dest_shorthand = \
|
|
(icr & APIC_ICR_DEST_SHORT) >> APIC_ICR_DEST_SHORT_SHIFT;
|
|
bool logical_mod = icr & APIC_ICR_DEST_MOD;
|
|
char apic_id_str[MAX_LOGICAL_APIC_ID_MASK_SIZE + 1];
|
|
uint32_t dest_field;
|
|
bool x2apic;
|
|
|
|
cpu_fprintf(f, "ICR\t 0x%08x %s %s %s %s\n",
|
|
icr,
|
|
logical_mod ? "logical" : "physical",
|
|
icr & APIC_ICR_TRIGGER_MOD ? "level" : "edge",
|
|
icr & APIC_ICR_LEVEL ? "assert" : "de-assert",
|
|
shorthand2str(dest_shorthand));
|
|
|
|
cpu_fprintf(f, "ICR2\t 0x%08x", icr2);
|
|
if (dest_shorthand != 0) {
|
|
cpu_fprintf(f, "\n");
|
|
return;
|
|
}
|
|
x2apic = env->features[FEAT_1_ECX] & CPUID_EXT_X2APIC;
|
|
dest_field = x2apic ? icr2 : icr2 >> APIC_ICR_DEST_SHIFT;
|
|
|
|
if (!logical_mod) {
|
|
if (x2apic) {
|
|
cpu_fprintf(f, " cpu %u (X2APIC ID)\n", dest_field);
|
|
} else {
|
|
cpu_fprintf(f, " cpu %u (APIC ID)\n",
|
|
dest_field & APIC_LOGDEST_XAPIC_ID);
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (s->dest_mode == 0xf) { /* flat mode */
|
|
mask2str(apic_id_str, icr2 >> APIC_ICR_DEST_SHIFT, 8);
|
|
cpu_fprintf(f, " mask %s (APIC ID)\n", apic_id_str);
|
|
} else if (s->dest_mode == 0) { /* cluster mode */
|
|
if (x2apic) {
|
|
mask2str(apic_id_str, dest_field & APIC_LOGDEST_X2APIC_ID, 16);
|
|
cpu_fprintf(f, " cluster %u mask %s (X2APIC ID)\n",
|
|
dest_field >> APIC_LOGDEST_X2APIC_SHIFT, apic_id_str);
|
|
} else {
|
|
mask2str(apic_id_str, dest_field & APIC_LOGDEST_XAPIC_ID, 4);
|
|
cpu_fprintf(f, " cluster %u mask %s (APIC ID)\n",
|
|
dest_field >> APIC_LOGDEST_XAPIC_SHIFT, apic_id_str);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void dump_apic_interrupt(FILE *f, fprintf_function cpu_fprintf,
|
|
const char *name, uint32_t *ireg_tab,
|
|
uint32_t *tmr_tab)
|
|
{
|
|
int i, empty = true;
|
|
|
|
cpu_fprintf(f, "%s\t ", name);
|
|
for (i = 0; i < 256; i++) {
|
|
if (apic_get_bit(ireg_tab, i)) {
|
|
cpu_fprintf(f, "%u%s ", i,
|
|
apic_get_bit(tmr_tab, i) ? "(level)" : "");
|
|
empty = false;
|
|
}
|
|
}
|
|
cpu_fprintf(f, "%s\n", empty ? "(none)" : "");
|
|
}
|
|
|
|
void x86_cpu_dump_local_apic_state(CPUState *cs, FILE *f,
|
|
fprintf_function cpu_fprintf, int flags)
|
|
{
|
|
X86CPU *cpu = X86_CPU(cs);
|
|
APICCommonState *s = APIC_COMMON(cpu->apic_state);
|
|
uint32_t *lvt = s->lvt;
|
|
|
|
cpu_fprintf(f, "dumping local APIC state for CPU %-2u\n\n",
|
|
CPU(cpu)->cpu_index);
|
|
dump_apic_lvt(f, cpu_fprintf, "LVT0", lvt[APIC_LVT_LINT0], false);
|
|
dump_apic_lvt(f, cpu_fprintf, "LVT1", lvt[APIC_LVT_LINT1], false);
|
|
dump_apic_lvt(f, cpu_fprintf, "LVTPC", lvt[APIC_LVT_PERFORM], false);
|
|
dump_apic_lvt(f, cpu_fprintf, "LVTERR", lvt[APIC_LVT_ERROR], false);
|
|
dump_apic_lvt(f, cpu_fprintf, "LVTTHMR", lvt[APIC_LVT_THERMAL], false);
|
|
dump_apic_lvt(f, cpu_fprintf, "LVTT", lvt[APIC_LVT_TIMER], true);
|
|
|
|
cpu_fprintf(f, "Timer\t DCR=0x%x (divide by %u) initial_count = %u\n",
|
|
s->divide_conf & APIC_DCR_MASK,
|
|
divider_conf(s->divide_conf),
|
|
s->initial_count);
|
|
|
|
cpu_fprintf(f, "SPIV\t 0x%08x APIC %s, focus=%s, spurious vec %u\n",
|
|
s->spurious_vec,
|
|
s->spurious_vec & APIC_SPURIO_ENABLED ? "enabled" : "disabled",
|
|
s->spurious_vec & APIC_SPURIO_FOCUS ? "on" : "off",
|
|
s->spurious_vec & APIC_VECTOR_MASK);
|
|
|
|
dump_apic_icr(f, cpu_fprintf, s, &cpu->env);
|
|
|
|
cpu_fprintf(f, "ESR\t 0x%08x\n", s->esr);
|
|
|
|
dump_apic_interrupt(f, cpu_fprintf, "ISR", s->isr, s->tmr);
|
|
dump_apic_interrupt(f, cpu_fprintf, "IRR", s->irr, s->tmr);
|
|
|
|
cpu_fprintf(f, "\nAPR 0x%02x TPR 0x%02x DFR 0x%02x LDR 0x%02x",
|
|
s->arb_id, s->tpr, s->dest_mode, s->log_dest);
|
|
if (s->dest_mode == 0) {
|
|
cpu_fprintf(f, "(cluster %u: id %u)",
|
|
s->log_dest >> APIC_LOGDEST_XAPIC_SHIFT,
|
|
s->log_dest & APIC_LOGDEST_XAPIC_ID);
|
|
}
|
|
cpu_fprintf(f, " PPR 0x%02x\n", apic_get_ppr(s));
|
|
}
|
|
#else
|
|
void x86_cpu_dump_local_apic_state(CPUState *cs, FILE *f,
|
|
fprintf_function cpu_fprintf, int flags)
|
|
{
|
|
}
|
|
#endif /* !CONFIG_USER_ONLY */
|
|
|
|
#define DUMP_CODE_BYTES_TOTAL 50
|
|
#define DUMP_CODE_BYTES_BACKWARD 20
|
|
|
|
void x86_cpu_dump_state(CPUState *cs, FILE *f, fprintf_function cpu_fprintf,
|
|
int flags)
|
|
{
|
|
X86CPU *cpu = X86_CPU(cs);
|
|
CPUX86State *env = &cpu->env;
|
|
int eflags, i, nb;
|
|
char cc_op_name[32];
|
|
static const char *seg_name[6] = { "ES", "CS", "SS", "DS", "FS", "GS" };
|
|
|
|
eflags = cpu_compute_eflags(env);
|
|
#ifdef TARGET_X86_64
|
|
if (env->hflags & HF_CS64_MASK) {
|
|
cpu_fprintf(f,
|
|
"RAX=%016" PRIx64 " RBX=%016" PRIx64 " RCX=%016" PRIx64 " RDX=%016" PRIx64 "\n"
|
|
"RSI=%016" PRIx64 " RDI=%016" PRIx64 " RBP=%016" PRIx64 " RSP=%016" PRIx64 "\n"
|
|
"R8 =%016" PRIx64 " R9 =%016" PRIx64 " R10=%016" PRIx64 " R11=%016" PRIx64 "\n"
|
|
"R12=%016" PRIx64 " R13=%016" PRIx64 " R14=%016" PRIx64 " R15=%016" PRIx64 "\n"
|
|
"RIP=%016" PRIx64 " RFL=%08x [%c%c%c%c%c%c%c] CPL=%d II=%d A20=%d SMM=%d HLT=%d\n",
|
|
env->regs[R_EAX],
|
|
env->regs[R_EBX],
|
|
env->regs[R_ECX],
|
|
env->regs[R_EDX],
|
|
env->regs[R_ESI],
|
|
env->regs[R_EDI],
|
|
env->regs[R_EBP],
|
|
env->regs[R_ESP],
|
|
env->regs[8],
|
|
env->regs[9],
|
|
env->regs[10],
|
|
env->regs[11],
|
|
env->regs[12],
|
|
env->regs[13],
|
|
env->regs[14],
|
|
env->regs[15],
|
|
env->eip, eflags,
|
|
eflags & DF_MASK ? 'D' : '-',
|
|
eflags & CC_O ? 'O' : '-',
|
|
eflags & CC_S ? 'S' : '-',
|
|
eflags & CC_Z ? 'Z' : '-',
|
|
eflags & CC_A ? 'A' : '-',
|
|
eflags & CC_P ? 'P' : '-',
|
|
eflags & CC_C ? 'C' : '-',
|
|
env->hflags & HF_CPL_MASK,
|
|
(env->hflags >> HF_INHIBIT_IRQ_SHIFT) & 1,
|
|
(env->a20_mask >> 20) & 1,
|
|
(env->hflags >> HF_SMM_SHIFT) & 1,
|
|
cs->halted);
|
|
} else
|
|
#endif
|
|
{
|
|
cpu_fprintf(f, "EAX=%08x EBX=%08x ECX=%08x EDX=%08x\n"
|
|
"ESI=%08x EDI=%08x EBP=%08x ESP=%08x\n"
|
|
"EIP=%08x EFL=%08x [%c%c%c%c%c%c%c] CPL=%d II=%d A20=%d SMM=%d HLT=%d\n",
|
|
(uint32_t)env->regs[R_EAX],
|
|
(uint32_t)env->regs[R_EBX],
|
|
(uint32_t)env->regs[R_ECX],
|
|
(uint32_t)env->regs[R_EDX],
|
|
(uint32_t)env->regs[R_ESI],
|
|
(uint32_t)env->regs[R_EDI],
|
|
(uint32_t)env->regs[R_EBP],
|
|
(uint32_t)env->regs[R_ESP],
|
|
(uint32_t)env->eip, eflags,
|
|
eflags & DF_MASK ? 'D' : '-',
|
|
eflags & CC_O ? 'O' : '-',
|
|
eflags & CC_S ? 'S' : '-',
|
|
eflags & CC_Z ? 'Z' : '-',
|
|
eflags & CC_A ? 'A' : '-',
|
|
eflags & CC_P ? 'P' : '-',
|
|
eflags & CC_C ? 'C' : '-',
|
|
env->hflags & HF_CPL_MASK,
|
|
(env->hflags >> HF_INHIBIT_IRQ_SHIFT) & 1,
|
|
(env->a20_mask >> 20) & 1,
|
|
(env->hflags >> HF_SMM_SHIFT) & 1,
|
|
cs->halted);
|
|
}
|
|
|
|
for(i = 0; i < 6; i++) {
|
|
cpu_x86_dump_seg_cache(env, f, cpu_fprintf, seg_name[i],
|
|
&env->segs[i]);
|
|
}
|
|
cpu_x86_dump_seg_cache(env, f, cpu_fprintf, "LDT", &env->ldt);
|
|
cpu_x86_dump_seg_cache(env, f, cpu_fprintf, "TR", &env->tr);
|
|
|
|
#ifdef TARGET_X86_64
|
|
if (env->hflags & HF_LMA_MASK) {
|
|
cpu_fprintf(f, "GDT= %016" PRIx64 " %08x\n",
|
|
env->gdt.base, env->gdt.limit);
|
|
cpu_fprintf(f, "IDT= %016" PRIx64 " %08x\n",
|
|
env->idt.base, env->idt.limit);
|
|
cpu_fprintf(f, "CR0=%08x CR2=%016" PRIx64 " CR3=%016" PRIx64 " CR4=%08x\n",
|
|
(uint32_t)env->cr[0],
|
|
env->cr[2],
|
|
env->cr[3],
|
|
(uint32_t)env->cr[4]);
|
|
for(i = 0; i < 4; i++)
|
|
cpu_fprintf(f, "DR%d=%016" PRIx64 " ", i, env->dr[i]);
|
|
cpu_fprintf(f, "\nDR6=%016" PRIx64 " DR7=%016" PRIx64 "\n",
|
|
env->dr[6], env->dr[7]);
|
|
} else
|
|
#endif
|
|
{
|
|
cpu_fprintf(f, "GDT= %08x %08x\n",
|
|
(uint32_t)env->gdt.base, env->gdt.limit);
|
|
cpu_fprintf(f, "IDT= %08x %08x\n",
|
|
(uint32_t)env->idt.base, env->idt.limit);
|
|
cpu_fprintf(f, "CR0=%08x CR2=%08x CR3=%08x CR4=%08x\n",
|
|
(uint32_t)env->cr[0],
|
|
(uint32_t)env->cr[2],
|
|
(uint32_t)env->cr[3],
|
|
(uint32_t)env->cr[4]);
|
|
for(i = 0; i < 4; i++) {
|
|
cpu_fprintf(f, "DR%d=" TARGET_FMT_lx " ", i, env->dr[i]);
|
|
}
|
|
cpu_fprintf(f, "\nDR6=" TARGET_FMT_lx " DR7=" TARGET_FMT_lx "\n",
|
|
env->dr[6], env->dr[7]);
|
|
}
|
|
if (flags & CPU_DUMP_CCOP) {
|
|
if ((unsigned)env->cc_op < CC_OP_NB)
|
|
snprintf(cc_op_name, sizeof(cc_op_name), "%s", cc_op_str[env->cc_op]);
|
|
else
|
|
snprintf(cc_op_name, sizeof(cc_op_name), "[%d]", env->cc_op);
|
|
#ifdef TARGET_X86_64
|
|
if (env->hflags & HF_CS64_MASK) {
|
|
cpu_fprintf(f, "CCS=%016" PRIx64 " CCD=%016" PRIx64 " CCO=%-8s\n",
|
|
env->cc_src, env->cc_dst,
|
|
cc_op_name);
|
|
} else
|
|
#endif
|
|
{
|
|
cpu_fprintf(f, "CCS=%08x CCD=%08x CCO=%-8s\n",
|
|
(uint32_t)env->cc_src, (uint32_t)env->cc_dst,
|
|
cc_op_name);
|
|
}
|
|
}
|
|
cpu_fprintf(f, "EFER=%016" PRIx64 "\n", env->efer);
|
|
if (flags & CPU_DUMP_FPU) {
|
|
int fptag;
|
|
fptag = 0;
|
|
for(i = 0; i < 8; i++) {
|
|
fptag |= ((!env->fptags[i]) << i);
|
|
}
|
|
cpu_fprintf(f, "FCW=%04x FSW=%04x [ST=%d] FTW=%02x MXCSR=%08x\n",
|
|
env->fpuc,
|
|
(env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11,
|
|
env->fpstt,
|
|
fptag,
|
|
env->mxcsr);
|
|
for(i=0;i<8;i++) {
|
|
CPU_LDoubleU u;
|
|
u.d = env->fpregs[i].d;
|
|
cpu_fprintf(f, "FPR%d=%016" PRIx64 " %04x",
|
|
i, u.l.lower, u.l.upper);
|
|
if ((i & 1) == 1)
|
|
cpu_fprintf(f, "\n");
|
|
else
|
|
cpu_fprintf(f, " ");
|
|
}
|
|
if (env->hflags & HF_CS64_MASK)
|
|
nb = 16;
|
|
else
|
|
nb = 8;
|
|
for(i=0;i<nb;i++) {
|
|
cpu_fprintf(f, "XMM%02d=%08x%08x%08x%08x",
|
|
i,
|
|
env->xmm_regs[i].ZMM_L(3),
|
|
env->xmm_regs[i].ZMM_L(2),
|
|
env->xmm_regs[i].ZMM_L(1),
|
|
env->xmm_regs[i].ZMM_L(0));
|
|
if ((i & 1) == 1)
|
|
cpu_fprintf(f, "\n");
|
|
else
|
|
cpu_fprintf(f, " ");
|
|
}
|
|
}
|
|
if (flags & CPU_DUMP_CODE) {
|
|
target_ulong base = env->segs[R_CS].base + env->eip;
|
|
target_ulong offs = MIN(env->eip, DUMP_CODE_BYTES_BACKWARD);
|
|
uint8_t code;
|
|
char codestr[3];
|
|
|
|
cpu_fprintf(f, "Code=");
|
|
for (i = 0; i < DUMP_CODE_BYTES_TOTAL; i++) {
|
|
if (cpu_memory_rw_debug(cs, base - offs + i, &code, 1, 0) == 0) {
|
|
snprintf(codestr, sizeof(codestr), "%02x", code);
|
|
} else {
|
|
snprintf(codestr, sizeof(codestr), "??");
|
|
}
|
|
cpu_fprintf(f, "%s%s%s%s", i > 0 ? " " : "",
|
|
i == offs ? "<" : "", codestr, i == offs ? ">" : "");
|
|
}
|
|
cpu_fprintf(f, "\n");
|
|
}
|
|
}
|
|
|
|
/***********************************************************/
|
|
/* x86 mmu */
|
|
/* XXX: add PGE support */
|
|
|
|
void x86_cpu_set_a20(X86CPU *cpu, int a20_state)
|
|
{
|
|
CPUX86State *env = &cpu->env;
|
|
|
|
a20_state = (a20_state != 0);
|
|
if (a20_state != ((env->a20_mask >> 20) & 1)) {
|
|
CPUState *cs = CPU(cpu);
|
|
|
|
qemu_log_mask(CPU_LOG_MMU, "A20 update: a20=%d\n", a20_state);
|
|
/* if the cpu is currently executing code, we must unlink it and
|
|
all the potentially executing TB */
|
|
cpu_interrupt(cs, CPU_INTERRUPT_EXITTB);
|
|
|
|
/* when a20 is changed, all the MMU mappings are invalid, so
|
|
we must flush everything */
|
|
tlb_flush(cs);
|
|
env->a20_mask = ~(1 << 20) | (a20_state << 20);
|
|
}
|
|
}
|
|
|
|
void cpu_x86_update_cr0(CPUX86State *env, uint32_t new_cr0)
|
|
{
|
|
X86CPU *cpu = x86_env_get_cpu(env);
|
|
int pe_state;
|
|
|
|
qemu_log_mask(CPU_LOG_MMU, "CR0 update: CR0=0x%08x\n", new_cr0);
|
|
if ((new_cr0 & (CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK)) !=
|
|
(env->cr[0] & (CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK))) {
|
|
tlb_flush(CPU(cpu));
|
|
}
|
|
|
|
#ifdef TARGET_X86_64
|
|
if (!(env->cr[0] & CR0_PG_MASK) && (new_cr0 & CR0_PG_MASK) &&
|
|
(env->efer & MSR_EFER_LME)) {
|
|
/* enter in long mode */
|
|
/* XXX: generate an exception */
|
|
if (!(env->cr[4] & CR4_PAE_MASK))
|
|
return;
|
|
env->efer |= MSR_EFER_LMA;
|
|
env->hflags |= HF_LMA_MASK;
|
|
} else if ((env->cr[0] & CR0_PG_MASK) && !(new_cr0 & CR0_PG_MASK) &&
|
|
(env->efer & MSR_EFER_LMA)) {
|
|
/* exit long mode */
|
|
env->efer &= ~MSR_EFER_LMA;
|
|
env->hflags &= ~(HF_LMA_MASK | HF_CS64_MASK);
|
|
env->eip &= 0xffffffff;
|
|
}
|
|
#endif
|
|
env->cr[0] = new_cr0 | CR0_ET_MASK;
|
|
|
|
/* update PE flag in hidden flags */
|
|
pe_state = (env->cr[0] & CR0_PE_MASK);
|
|
env->hflags = (env->hflags & ~HF_PE_MASK) | (pe_state << HF_PE_SHIFT);
|
|
/* ensure that ADDSEG is always set in real mode */
|
|
env->hflags |= ((pe_state ^ 1) << HF_ADDSEG_SHIFT);
|
|
/* update FPU flags */
|
|
env->hflags = (env->hflags & ~(HF_MP_MASK | HF_EM_MASK | HF_TS_MASK)) |
|
|
((new_cr0 << (HF_MP_SHIFT - 1)) & (HF_MP_MASK | HF_EM_MASK | HF_TS_MASK));
|
|
}
|
|
|
|
/* XXX: in legacy PAE mode, generate a GPF if reserved bits are set in
|
|
the PDPT */
|
|
void cpu_x86_update_cr3(CPUX86State *env, target_ulong new_cr3)
|
|
{
|
|
X86CPU *cpu = x86_env_get_cpu(env);
|
|
|
|
env->cr[3] = new_cr3;
|
|
if (env->cr[0] & CR0_PG_MASK) {
|
|
qemu_log_mask(CPU_LOG_MMU,
|
|
"CR3 update: CR3=" TARGET_FMT_lx "\n", new_cr3);
|
|
tlb_flush(CPU(cpu));
|
|
}
|
|
}
|
|
|
|
void cpu_x86_update_cr4(CPUX86State *env, uint32_t new_cr4)
|
|
{
|
|
X86CPU *cpu = x86_env_get_cpu(env);
|
|
uint32_t hflags;
|
|
|
|
#if defined(DEBUG_MMU)
|
|
printf("CR4 update: %08x -> %08x\n", (uint32_t)env->cr[4], new_cr4);
|
|
#endif
|
|
if ((new_cr4 ^ env->cr[4]) &
|
|
(CR4_PGE_MASK | CR4_PAE_MASK | CR4_PSE_MASK |
|
|
CR4_SMEP_MASK | CR4_SMAP_MASK | CR4_LA57_MASK)) {
|
|
tlb_flush(CPU(cpu));
|
|
}
|
|
|
|
/* Clear bits we're going to recompute. */
|
|
hflags = env->hflags & ~(HF_OSFXSR_MASK | HF_SMAP_MASK);
|
|
|
|
/* SSE handling */
|
|
if (!(env->features[FEAT_1_EDX] & CPUID_SSE)) {
|
|
new_cr4 &= ~CR4_OSFXSR_MASK;
|
|
}
|
|
if (new_cr4 & CR4_OSFXSR_MASK) {
|
|
hflags |= HF_OSFXSR_MASK;
|
|
}
|
|
|
|
if (!(env->features[FEAT_7_0_EBX] & CPUID_7_0_EBX_SMAP)) {
|
|
new_cr4 &= ~CR4_SMAP_MASK;
|
|
}
|
|
if (new_cr4 & CR4_SMAP_MASK) {
|
|
hflags |= HF_SMAP_MASK;
|
|
}
|
|
|
|
if (!(env->features[FEAT_7_0_ECX] & CPUID_7_0_ECX_PKU)) {
|
|
new_cr4 &= ~CR4_PKE_MASK;
|
|
}
|
|
|
|
env->cr[4] = new_cr4;
|
|
env->hflags = hflags;
|
|
|
|
cpu_sync_bndcs_hflags(env);
|
|
}
|
|
|
|
#if defined(CONFIG_USER_ONLY)
|
|
|
|
int x86_cpu_handle_mmu_fault(CPUState *cs, vaddr addr,
|
|
int is_write, int mmu_idx)
|
|
{
|
|
X86CPU *cpu = X86_CPU(cs);
|
|
CPUX86State *env = &cpu->env;
|
|
|
|
/* user mode only emulation */
|
|
is_write &= 1;
|
|
env->cr[2] = addr;
|
|
env->error_code = (is_write << PG_ERROR_W_BIT);
|
|
env->error_code |= PG_ERROR_U_MASK;
|
|
cs->exception_index = EXCP0E_PAGE;
|
|
env->exception_is_int = 0;
|
|
env->exception_next_eip = -1;
|
|
return 1;
|
|
}
|
|
|
|
#else
|
|
|
|
/* return value:
|
|
* -1 = cannot handle fault
|
|
* 0 = nothing more to do
|
|
* 1 = generate PF fault
|
|
*/
|
|
int x86_cpu_handle_mmu_fault(CPUState *cs, vaddr addr,
|
|
int is_write1, int mmu_idx)
|
|
{
|
|
X86CPU *cpu = X86_CPU(cs);
|
|
CPUX86State *env = &cpu->env;
|
|
uint64_t ptep, pte;
|
|
target_ulong pde_addr, pte_addr;
|
|
int error_code = 0;
|
|
int is_dirty, prot, page_size, is_write, is_user;
|
|
hwaddr paddr;
|
|
uint64_t rsvd_mask = PG_HI_RSVD_MASK;
|
|
uint32_t page_offset;
|
|
target_ulong vaddr;
|
|
|
|
is_user = mmu_idx == MMU_USER_IDX;
|
|
#if defined(DEBUG_MMU)
|
|
printf("MMU fault: addr=%" VADDR_PRIx " w=%d u=%d eip=" TARGET_FMT_lx "\n",
|
|
addr, is_write1, is_user, env->eip);
|
|
#endif
|
|
is_write = is_write1 & 1;
|
|
|
|
if (!(env->cr[0] & CR0_PG_MASK)) {
|
|
pte = addr;
|
|
#ifdef TARGET_X86_64
|
|
if (!(env->hflags & HF_LMA_MASK)) {
|
|
/* Without long mode we can only address 32bits in real mode */
|
|
pte = (uint32_t)pte;
|
|
}
|
|
#endif
|
|
prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
|
|
page_size = 4096;
|
|
goto do_mapping;
|
|
}
|
|
|
|
if (!(env->efer & MSR_EFER_NXE)) {
|
|
rsvd_mask |= PG_NX_MASK;
|
|
}
|
|
|
|
if (env->cr[4] & CR4_PAE_MASK) {
|
|
uint64_t pde, pdpe;
|
|
target_ulong pdpe_addr;
|
|
|
|
#ifdef TARGET_X86_64
|
|
if (env->hflags & HF_LMA_MASK) {
|
|
bool la57 = env->cr[4] & CR4_LA57_MASK;
|
|
uint64_t pml5e_addr, pml5e;
|
|
uint64_t pml4e_addr, pml4e;
|
|
int32_t sext;
|
|
|
|
/* test virtual address sign extension */
|
|
sext = la57 ? (int64_t)addr >> 56 : (int64_t)addr >> 47;
|
|
if (sext != 0 && sext != -1) {
|
|
env->error_code = 0;
|
|
cs->exception_index = EXCP0D_GPF;
|
|
return 1;
|
|
}
|
|
|
|
if (la57) {
|
|
pml5e_addr = ((env->cr[3] & ~0xfff) +
|
|
(((addr >> 48) & 0x1ff) << 3)) & env->a20_mask;
|
|
pml5e = x86_ldq_phys(cs, pml5e_addr);
|
|
if (!(pml5e & PG_PRESENT_MASK)) {
|
|
goto do_fault;
|
|
}
|
|
if (pml5e & (rsvd_mask | PG_PSE_MASK)) {
|
|
goto do_fault_rsvd;
|
|
}
|
|
if (!(pml5e & PG_ACCESSED_MASK)) {
|
|
pml5e |= PG_ACCESSED_MASK;
|
|
x86_stl_phys_notdirty(cs, pml5e_addr, pml5e);
|
|
}
|
|
ptep = pml5e ^ PG_NX_MASK;
|
|
} else {
|
|
pml5e = env->cr[3];
|
|
ptep = PG_NX_MASK | PG_USER_MASK | PG_RW_MASK;
|
|
}
|
|
|
|
pml4e_addr = ((pml5e & PG_ADDRESS_MASK) +
|
|
(((addr >> 39) & 0x1ff) << 3)) & env->a20_mask;
|
|
pml4e = x86_ldq_phys(cs, pml4e_addr);
|
|
if (!(pml4e & PG_PRESENT_MASK)) {
|
|
goto do_fault;
|
|
}
|
|
if (pml4e & (rsvd_mask | PG_PSE_MASK)) {
|
|
goto do_fault_rsvd;
|
|
}
|
|
if (!(pml4e & PG_ACCESSED_MASK)) {
|
|
pml4e |= PG_ACCESSED_MASK;
|
|
x86_stl_phys_notdirty(cs, pml4e_addr, pml4e);
|
|
}
|
|
ptep &= pml4e ^ PG_NX_MASK;
|
|
pdpe_addr = ((pml4e & PG_ADDRESS_MASK) + (((addr >> 30) & 0x1ff) << 3)) &
|
|
env->a20_mask;
|
|
pdpe = x86_ldq_phys(cs, pdpe_addr);
|
|
if (!(pdpe & PG_PRESENT_MASK)) {
|
|
goto do_fault;
|
|
}
|
|
if (pdpe & rsvd_mask) {
|
|
goto do_fault_rsvd;
|
|
}
|
|
ptep &= pdpe ^ PG_NX_MASK;
|
|
if (!(pdpe & PG_ACCESSED_MASK)) {
|
|
pdpe |= PG_ACCESSED_MASK;
|
|
x86_stl_phys_notdirty(cs, pdpe_addr, pdpe);
|
|
}
|
|
if (pdpe & PG_PSE_MASK) {
|
|
/* 1 GB page */
|
|
page_size = 1024 * 1024 * 1024;
|
|
pte_addr = pdpe_addr;
|
|
pte = pdpe;
|
|
goto do_check_protect;
|
|
}
|
|
} else
|
|
#endif
|
|
{
|
|
/* XXX: load them when cr3 is loaded ? */
|
|
pdpe_addr = ((env->cr[3] & ~0x1f) + ((addr >> 27) & 0x18)) &
|
|
env->a20_mask;
|
|
pdpe = x86_ldq_phys(cs, pdpe_addr);
|
|
if (!(pdpe & PG_PRESENT_MASK)) {
|
|
goto do_fault;
|
|
}
|
|
rsvd_mask |= PG_HI_USER_MASK;
|
|
if (pdpe & (rsvd_mask | PG_NX_MASK)) {
|
|
goto do_fault_rsvd;
|
|
}
|
|
ptep = PG_NX_MASK | PG_USER_MASK | PG_RW_MASK;
|
|
}
|
|
|
|
pde_addr = ((pdpe & PG_ADDRESS_MASK) + (((addr >> 21) & 0x1ff) << 3)) &
|
|
env->a20_mask;
|
|
pde = x86_ldq_phys(cs, pde_addr);
|
|
if (!(pde & PG_PRESENT_MASK)) {
|
|
goto do_fault;
|
|
}
|
|
if (pde & rsvd_mask) {
|
|
goto do_fault_rsvd;
|
|
}
|
|
ptep &= pde ^ PG_NX_MASK;
|
|
if (pde & PG_PSE_MASK) {
|
|
/* 2 MB page */
|
|
page_size = 2048 * 1024;
|
|
pte_addr = pde_addr;
|
|
pte = pde;
|
|
goto do_check_protect;
|
|
}
|
|
/* 4 KB page */
|
|
if (!(pde & PG_ACCESSED_MASK)) {
|
|
pde |= PG_ACCESSED_MASK;
|
|
x86_stl_phys_notdirty(cs, pde_addr, pde);
|
|
}
|
|
pte_addr = ((pde & PG_ADDRESS_MASK) + (((addr >> 12) & 0x1ff) << 3)) &
|
|
env->a20_mask;
|
|
pte = x86_ldq_phys(cs, pte_addr);
|
|
if (!(pte & PG_PRESENT_MASK)) {
|
|
goto do_fault;
|
|
}
|
|
if (pte & rsvd_mask) {
|
|
goto do_fault_rsvd;
|
|
}
|
|
/* combine pde and pte nx, user and rw protections */
|
|
ptep &= pte ^ PG_NX_MASK;
|
|
page_size = 4096;
|
|
} else {
|
|
uint32_t pde;
|
|
|
|
/* page directory entry */
|
|
pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & 0xffc)) &
|
|
env->a20_mask;
|
|
pde = x86_ldl_phys(cs, pde_addr);
|
|
if (!(pde & PG_PRESENT_MASK)) {
|
|
goto do_fault;
|
|
}
|
|
ptep = pde | PG_NX_MASK;
|
|
|
|
/* if PSE bit is set, then we use a 4MB page */
|
|
if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
|
|
page_size = 4096 * 1024;
|
|
pte_addr = pde_addr;
|
|
|
|
/* Bits 20-13 provide bits 39-32 of the address, bit 21 is reserved.
|
|
* Leave bits 20-13 in place for setting accessed/dirty bits below.
|
|
*/
|
|
pte = pde | ((pde & 0x1fe000LL) << (32 - 13));
|
|
rsvd_mask = 0x200000;
|
|
goto do_check_protect_pse36;
|
|
}
|
|
|
|
if (!(pde & PG_ACCESSED_MASK)) {
|
|
pde |= PG_ACCESSED_MASK;
|
|
x86_stl_phys_notdirty(cs, pde_addr, pde);
|
|
}
|
|
|
|
/* page directory entry */
|
|
pte_addr = ((pde & ~0xfff) + ((addr >> 10) & 0xffc)) &
|
|
env->a20_mask;
|
|
pte = x86_ldl_phys(cs, pte_addr);
|
|
if (!(pte & PG_PRESENT_MASK)) {
|
|
goto do_fault;
|
|
}
|
|
/* combine pde and pte user and rw protections */
|
|
ptep &= pte | PG_NX_MASK;
|
|
page_size = 4096;
|
|
rsvd_mask = 0;
|
|
}
|
|
|
|
do_check_protect:
|
|
rsvd_mask |= (page_size - 1) & PG_ADDRESS_MASK & ~PG_PSE_PAT_MASK;
|
|
do_check_protect_pse36:
|
|
if (pte & rsvd_mask) {
|
|
goto do_fault_rsvd;
|
|
}
|
|
ptep ^= PG_NX_MASK;
|
|
|
|
/* can the page can be put in the TLB? prot will tell us */
|
|
if (is_user && !(ptep & PG_USER_MASK)) {
|
|
goto do_fault_protect;
|
|
}
|
|
|
|
prot = 0;
|
|
if (mmu_idx != MMU_KSMAP_IDX || !(ptep & PG_USER_MASK)) {
|
|
prot |= PAGE_READ;
|
|
if ((ptep & PG_RW_MASK) || (!is_user && !(env->cr[0] & CR0_WP_MASK))) {
|
|
prot |= PAGE_WRITE;
|
|
}
|
|
}
|
|
if (!(ptep & PG_NX_MASK) &&
|
|
(mmu_idx == MMU_USER_IDX ||
|
|
!((env->cr[4] & CR4_SMEP_MASK) && (ptep & PG_USER_MASK)))) {
|
|
prot |= PAGE_EXEC;
|
|
}
|
|
if ((env->cr[4] & CR4_PKE_MASK) && (env->hflags & HF_LMA_MASK) &&
|
|
(ptep & PG_USER_MASK) && env->pkru) {
|
|
uint32_t pk = (pte & PG_PKRU_MASK) >> PG_PKRU_BIT;
|
|
uint32_t pkru_ad = (env->pkru >> pk * 2) & 1;
|
|
uint32_t pkru_wd = (env->pkru >> pk * 2) & 2;
|
|
uint32_t pkru_prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
|
|
|
|
if (pkru_ad) {
|
|
pkru_prot &= ~(PAGE_READ | PAGE_WRITE);
|
|
} else if (pkru_wd && (is_user || env->cr[0] & CR0_WP_MASK)) {
|
|
pkru_prot &= ~PAGE_WRITE;
|
|
}
|
|
|
|
prot &= pkru_prot;
|
|
if ((pkru_prot & (1 << is_write1)) == 0) {
|
|
assert(is_write1 != 2);
|
|
error_code |= PG_ERROR_PK_MASK;
|
|
goto do_fault_protect;
|
|
}
|
|
}
|
|
|
|
if ((prot & (1 << is_write1)) == 0) {
|
|
goto do_fault_protect;
|
|
}
|
|
|
|
/* yes, it can! */
|
|
is_dirty = is_write && !(pte & PG_DIRTY_MASK);
|
|
if (!(pte & PG_ACCESSED_MASK) || is_dirty) {
|
|
pte |= PG_ACCESSED_MASK;
|
|
if (is_dirty) {
|
|
pte |= PG_DIRTY_MASK;
|
|
}
|
|
x86_stl_phys_notdirty(cs, pte_addr, pte);
|
|
}
|
|
|
|
if (!(pte & PG_DIRTY_MASK)) {
|
|
/* only set write access if already dirty... otherwise wait
|
|
for dirty access */
|
|
assert(!is_write);
|
|
prot &= ~PAGE_WRITE;
|
|
}
|
|
|
|
do_mapping:
|
|
pte = pte & env->a20_mask;
|
|
|
|
/* align to page_size */
|
|
pte &= PG_ADDRESS_MASK & ~(page_size - 1);
|
|
|
|
/* Even if 4MB pages, we map only one 4KB page in the cache to
|
|
avoid filling it too fast */
|
|
vaddr = addr & TARGET_PAGE_MASK;
|
|
page_offset = vaddr & (page_size - 1);
|
|
paddr = pte + page_offset;
|
|
|
|
assert(prot & (1 << is_write1));
|
|
tlb_set_page_with_attrs(cs, vaddr, paddr, cpu_get_mem_attrs(env),
|
|
prot, mmu_idx, page_size);
|
|
return 0;
|
|
do_fault_rsvd:
|
|
error_code |= PG_ERROR_RSVD_MASK;
|
|
do_fault_protect:
|
|
error_code |= PG_ERROR_P_MASK;
|
|
do_fault:
|
|
error_code |= (is_write << PG_ERROR_W_BIT);
|
|
if (is_user)
|
|
error_code |= PG_ERROR_U_MASK;
|
|
if (is_write1 == 2 &&
|
|
(((env->efer & MSR_EFER_NXE) &&
|
|
(env->cr[4] & CR4_PAE_MASK)) ||
|
|
(env->cr[4] & CR4_SMEP_MASK)))
|
|
error_code |= PG_ERROR_I_D_MASK;
|
|
if (env->intercept_exceptions & (1 << EXCP0E_PAGE)) {
|
|
/* cr2 is not modified in case of exceptions */
|
|
x86_stq_phys(cs,
|
|
env->vm_vmcb + offsetof(struct vmcb, control.exit_info_2),
|
|
addr);
|
|
} else {
|
|
env->cr[2] = addr;
|
|
}
|
|
env->error_code = error_code;
|
|
cs->exception_index = EXCP0E_PAGE;
|
|
return 1;
|
|
}
|
|
|
|
hwaddr x86_cpu_get_phys_page_debug(CPUState *cs, vaddr addr)
|
|
{
|
|
X86CPU *cpu = X86_CPU(cs);
|
|
CPUX86State *env = &cpu->env;
|
|
target_ulong pde_addr, pte_addr;
|
|
uint64_t pte;
|
|
uint32_t page_offset;
|
|
int page_size;
|
|
|
|
if (!(env->cr[0] & CR0_PG_MASK)) {
|
|
pte = addr & env->a20_mask;
|
|
page_size = 4096;
|
|
} else if (env->cr[4] & CR4_PAE_MASK) {
|
|
target_ulong pdpe_addr;
|
|
uint64_t pde, pdpe;
|
|
|
|
#ifdef TARGET_X86_64
|
|
if (env->hflags & HF_LMA_MASK) {
|
|
bool la57 = env->cr[4] & CR4_LA57_MASK;
|
|
uint64_t pml5e_addr, pml5e;
|
|
uint64_t pml4e_addr, pml4e;
|
|
int32_t sext;
|
|
|
|
/* test virtual address sign extension */
|
|
sext = la57 ? (int64_t)addr >> 56 : (int64_t)addr >> 47;
|
|
if (sext != 0 && sext != -1) {
|
|
return -1;
|
|
}
|
|
|
|
if (la57) {
|
|
pml5e_addr = ((env->cr[3] & ~0xfff) +
|
|
(((addr >> 48) & 0x1ff) << 3)) & env->a20_mask;
|
|
pml5e = x86_ldq_phys(cs, pml5e_addr);
|
|
if (!(pml5e & PG_PRESENT_MASK)) {
|
|
return -1;
|
|
}
|
|
} else {
|
|
pml5e = env->cr[3];
|
|
}
|
|
|
|
pml4e_addr = ((pml5e & PG_ADDRESS_MASK) +
|
|
(((addr >> 39) & 0x1ff) << 3)) & env->a20_mask;
|
|
pml4e = x86_ldq_phys(cs, pml4e_addr);
|
|
if (!(pml4e & PG_PRESENT_MASK)) {
|
|
return -1;
|
|
}
|
|
pdpe_addr = ((pml4e & PG_ADDRESS_MASK) +
|
|
(((addr >> 30) & 0x1ff) << 3)) & env->a20_mask;
|
|
pdpe = x86_ldq_phys(cs, pdpe_addr);
|
|
if (!(pdpe & PG_PRESENT_MASK)) {
|
|
return -1;
|
|
}
|
|
if (pdpe & PG_PSE_MASK) {
|
|
page_size = 1024 * 1024 * 1024;
|
|
pte = pdpe;
|
|
goto out;
|
|
}
|
|
|
|
} else
|
|
#endif
|
|
{
|
|
pdpe_addr = ((env->cr[3] & ~0x1f) + ((addr >> 27) & 0x18)) &
|
|
env->a20_mask;
|
|
pdpe = x86_ldq_phys(cs, pdpe_addr);
|
|
if (!(pdpe & PG_PRESENT_MASK))
|
|
return -1;
|
|
}
|
|
|
|
pde_addr = ((pdpe & PG_ADDRESS_MASK) +
|
|
(((addr >> 21) & 0x1ff) << 3)) & env->a20_mask;
|
|
pde = x86_ldq_phys(cs, pde_addr);
|
|
if (!(pde & PG_PRESENT_MASK)) {
|
|
return -1;
|
|
}
|
|
if (pde & PG_PSE_MASK) {
|
|
/* 2 MB page */
|
|
page_size = 2048 * 1024;
|
|
pte = pde;
|
|
} else {
|
|
/* 4 KB page */
|
|
pte_addr = ((pde & PG_ADDRESS_MASK) +
|
|
(((addr >> 12) & 0x1ff) << 3)) & env->a20_mask;
|
|
page_size = 4096;
|
|
pte = x86_ldq_phys(cs, pte_addr);
|
|
}
|
|
if (!(pte & PG_PRESENT_MASK)) {
|
|
return -1;
|
|
}
|
|
} else {
|
|
uint32_t pde;
|
|
|
|
/* page directory entry */
|
|
pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & 0xffc)) & env->a20_mask;
|
|
pde = x86_ldl_phys(cs, pde_addr);
|
|
if (!(pde & PG_PRESENT_MASK))
|
|
return -1;
|
|
if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
|
|
pte = pde | ((pde & 0x1fe000LL) << (32 - 13));
|
|
page_size = 4096 * 1024;
|
|
} else {
|
|
/* page directory entry */
|
|
pte_addr = ((pde & ~0xfff) + ((addr >> 10) & 0xffc)) & env->a20_mask;
|
|
pte = x86_ldl_phys(cs, pte_addr);
|
|
if (!(pte & PG_PRESENT_MASK)) {
|
|
return -1;
|
|
}
|
|
page_size = 4096;
|
|
}
|
|
pte = pte & env->a20_mask;
|
|
}
|
|
|
|
#ifdef TARGET_X86_64
|
|
out:
|
|
#endif
|
|
pte &= PG_ADDRESS_MASK & ~(page_size - 1);
|
|
page_offset = (addr & TARGET_PAGE_MASK) & (page_size - 1);
|
|
return pte | page_offset;
|
|
}
|
|
|
|
typedef struct MCEInjectionParams {
|
|
Monitor *mon;
|
|
int bank;
|
|
uint64_t status;
|
|
uint64_t mcg_status;
|
|
uint64_t addr;
|
|
uint64_t misc;
|
|
int flags;
|
|
} MCEInjectionParams;
|
|
|
|
static void do_inject_x86_mce(CPUState *cs, run_on_cpu_data data)
|
|
{
|
|
MCEInjectionParams *params = data.host_ptr;
|
|
X86CPU *cpu = X86_CPU(cs);
|
|
CPUX86State *cenv = &cpu->env;
|
|
uint64_t *banks = cenv->mce_banks + 4 * params->bank;
|
|
|
|
cpu_synchronize_state(cs);
|
|
|
|
/*
|
|
* If there is an MCE exception being processed, ignore this SRAO MCE
|
|
* unless unconditional injection was requested.
|
|
*/
|
|
if (!(params->flags & MCE_INJECT_UNCOND_AO)
|
|
&& !(params->status & MCI_STATUS_AR)
|
|
&& (cenv->mcg_status & MCG_STATUS_MCIP)) {
|
|
return;
|
|
}
|
|
|
|
if (params->status & MCI_STATUS_UC) {
|
|
/*
|
|
* if MSR_MCG_CTL is not all 1s, the uncorrected error
|
|
* reporting is disabled
|
|
*/
|
|
if ((cenv->mcg_cap & MCG_CTL_P) && cenv->mcg_ctl != ~(uint64_t)0) {
|
|
monitor_printf(params->mon,
|
|
"CPU %d: Uncorrected error reporting disabled\n",
|
|
cs->cpu_index);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* if MSR_MCi_CTL is not all 1s, the uncorrected error
|
|
* reporting is disabled for the bank
|
|
*/
|
|
if (banks[0] != ~(uint64_t)0) {
|
|
monitor_printf(params->mon,
|
|
"CPU %d: Uncorrected error reporting disabled for"
|
|
" bank %d\n",
|
|
cs->cpu_index, params->bank);
|
|
return;
|
|
}
|
|
|
|
if ((cenv->mcg_status & MCG_STATUS_MCIP) ||
|
|
!(cenv->cr[4] & CR4_MCE_MASK)) {
|
|
monitor_printf(params->mon,
|
|
"CPU %d: Previous MCE still in progress, raising"
|
|
" triple fault\n",
|
|
cs->cpu_index);
|
|
qemu_log_mask(CPU_LOG_RESET, "Triple fault\n");
|
|
qemu_system_reset_request();
|
|
return;
|
|
}
|
|
if (banks[1] & MCI_STATUS_VAL) {
|
|
params->status |= MCI_STATUS_OVER;
|
|
}
|
|
banks[2] = params->addr;
|
|
banks[3] = params->misc;
|
|
cenv->mcg_status = params->mcg_status;
|
|
banks[1] = params->status;
|
|
cpu_interrupt(cs, CPU_INTERRUPT_MCE);
|
|
} else if (!(banks[1] & MCI_STATUS_VAL)
|
|
|| !(banks[1] & MCI_STATUS_UC)) {
|
|
if (banks[1] & MCI_STATUS_VAL) {
|
|
params->status |= MCI_STATUS_OVER;
|
|
}
|
|
banks[2] = params->addr;
|
|
banks[3] = params->misc;
|
|
banks[1] = params->status;
|
|
} else {
|
|
banks[1] |= MCI_STATUS_OVER;
|
|
}
|
|
}
|
|
|
|
void cpu_x86_inject_mce(Monitor *mon, X86CPU *cpu, int bank,
|
|
uint64_t status, uint64_t mcg_status, uint64_t addr,
|
|
uint64_t misc, int flags)
|
|
{
|
|
CPUState *cs = CPU(cpu);
|
|
CPUX86State *cenv = &cpu->env;
|
|
MCEInjectionParams params = {
|
|
.mon = mon,
|
|
.bank = bank,
|
|
.status = status,
|
|
.mcg_status = mcg_status,
|
|
.addr = addr,
|
|
.misc = misc,
|
|
.flags = flags,
|
|
};
|
|
unsigned bank_num = cenv->mcg_cap & 0xff;
|
|
|
|
if (!cenv->mcg_cap) {
|
|
monitor_printf(mon, "MCE injection not supported\n");
|
|
return;
|
|
}
|
|
if (bank >= bank_num) {
|
|
monitor_printf(mon, "Invalid MCE bank number\n");
|
|
return;
|
|
}
|
|
if (!(status & MCI_STATUS_VAL)) {
|
|
monitor_printf(mon, "Invalid MCE status code\n");
|
|
return;
|
|
}
|
|
if ((flags & MCE_INJECT_BROADCAST)
|
|
&& !cpu_x86_support_mca_broadcast(cenv)) {
|
|
monitor_printf(mon, "Guest CPU does not support MCA broadcast\n");
|
|
return;
|
|
}
|
|
|
|
run_on_cpu(cs, do_inject_x86_mce, RUN_ON_CPU_HOST_PTR(¶ms));
|
|
if (flags & MCE_INJECT_BROADCAST) {
|
|
CPUState *other_cs;
|
|
|
|
params.bank = 1;
|
|
params.status = MCI_STATUS_VAL | MCI_STATUS_UC;
|
|
params.mcg_status = MCG_STATUS_MCIP | MCG_STATUS_RIPV;
|
|
params.addr = 0;
|
|
params.misc = 0;
|
|
CPU_FOREACH(other_cs) {
|
|
if (other_cs == cs) {
|
|
continue;
|
|
}
|
|
run_on_cpu(other_cs, do_inject_x86_mce, RUN_ON_CPU_HOST_PTR(¶ms));
|
|
}
|
|
}
|
|
}
|
|
|
|
void cpu_report_tpr_access(CPUX86State *env, TPRAccess access)
|
|
{
|
|
X86CPU *cpu = x86_env_get_cpu(env);
|
|
CPUState *cs = CPU(cpu);
|
|
|
|
if (kvm_enabled()) {
|
|
env->tpr_access_type = access;
|
|
|
|
cpu_interrupt(cs, CPU_INTERRUPT_TPR);
|
|
} else {
|
|
cpu_restore_state(cs, cs->mem_io_pc);
|
|
|
|
apic_handle_tpr_access_report(cpu->apic_state, env->eip, access);
|
|
}
|
|
}
|
|
#endif /* !CONFIG_USER_ONLY */
|
|
|
|
int cpu_x86_get_descr_debug(CPUX86State *env, unsigned int selector,
|
|
target_ulong *base, unsigned int *limit,
|
|
unsigned int *flags)
|
|
{
|
|
X86CPU *cpu = x86_env_get_cpu(env);
|
|
CPUState *cs = CPU(cpu);
|
|
SegmentCache *dt;
|
|
target_ulong ptr;
|
|
uint32_t e1, e2;
|
|
int index;
|
|
|
|
if (selector & 0x4)
|
|
dt = &env->ldt;
|
|
else
|
|
dt = &env->gdt;
|
|
index = selector & ~7;
|
|
ptr = dt->base + index;
|
|
if ((index + 7) > dt->limit
|
|
|| cpu_memory_rw_debug(cs, ptr, (uint8_t *)&e1, sizeof(e1), 0) != 0
|
|
|| cpu_memory_rw_debug(cs, ptr+4, (uint8_t *)&e2, sizeof(e2), 0) != 0)
|
|
return 0;
|
|
|
|
*base = ((e1 >> 16) | ((e2 & 0xff) << 16) | (e2 & 0xff000000));
|
|
*limit = (e1 & 0xffff) | (e2 & 0x000f0000);
|
|
if (e2 & DESC_G_MASK)
|
|
*limit = (*limit << 12) | 0xfff;
|
|
*flags = e2;
|
|
|
|
return 1;
|
|
}
|
|
|
|
#if !defined(CONFIG_USER_ONLY)
|
|
void do_cpu_init(X86CPU *cpu)
|
|
{
|
|
CPUState *cs = CPU(cpu);
|
|
CPUX86State *env = &cpu->env;
|
|
CPUX86State *save = g_new(CPUX86State, 1);
|
|
int sipi = cs->interrupt_request & CPU_INTERRUPT_SIPI;
|
|
|
|
*save = *env;
|
|
|
|
cpu_reset(cs);
|
|
cs->interrupt_request = sipi;
|
|
memcpy(&env->start_init_save, &save->start_init_save,
|
|
offsetof(CPUX86State, end_init_save) -
|
|
offsetof(CPUX86State, start_init_save));
|
|
g_free(save);
|
|
|
|
if (kvm_enabled()) {
|
|
kvm_arch_do_init_vcpu(cpu);
|
|
}
|
|
apic_init_reset(cpu->apic_state);
|
|
}
|
|
|
|
void do_cpu_sipi(X86CPU *cpu)
|
|
{
|
|
apic_sipi(cpu->apic_state);
|
|
}
|
|
#else
|
|
void do_cpu_init(X86CPU *cpu)
|
|
{
|
|
}
|
|
void do_cpu_sipi(X86CPU *cpu)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
/* Frob eflags into and out of the CPU temporary format. */
|
|
|
|
void x86_cpu_exec_enter(CPUState *cs)
|
|
{
|
|
X86CPU *cpu = X86_CPU(cs);
|
|
CPUX86State *env = &cpu->env;
|
|
|
|
CC_SRC = env->eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
|
|
env->df = 1 - (2 * ((env->eflags >> 10) & 1));
|
|
CC_OP = CC_OP_EFLAGS;
|
|
env->eflags &= ~(DF_MASK | CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
|
|
}
|
|
|
|
void x86_cpu_exec_exit(CPUState *cs)
|
|
{
|
|
X86CPU *cpu = X86_CPU(cs);
|
|
CPUX86State *env = &cpu->env;
|
|
|
|
env->eflags = cpu_compute_eflags(env);
|
|
}
|
|
|
|
#ifndef CONFIG_USER_ONLY
|
|
uint8_t x86_ldub_phys(CPUState *cs, hwaddr addr)
|
|
{
|
|
X86CPU *cpu = X86_CPU(cs);
|
|
CPUX86State *env = &cpu->env;
|
|
|
|
return address_space_ldub(cs->as, addr,
|
|
cpu_get_mem_attrs(env),
|
|
NULL);
|
|
}
|
|
|
|
uint32_t x86_lduw_phys(CPUState *cs, hwaddr addr)
|
|
{
|
|
X86CPU *cpu = X86_CPU(cs);
|
|
CPUX86State *env = &cpu->env;
|
|
|
|
return address_space_lduw(cs->as, addr,
|
|
cpu_get_mem_attrs(env),
|
|
NULL);
|
|
}
|
|
|
|
uint32_t x86_ldl_phys(CPUState *cs, hwaddr addr)
|
|
{
|
|
X86CPU *cpu = X86_CPU(cs);
|
|
CPUX86State *env = &cpu->env;
|
|
|
|
return address_space_ldl(cs->as, addr,
|
|
cpu_get_mem_attrs(env),
|
|
NULL);
|
|
}
|
|
|
|
uint64_t x86_ldq_phys(CPUState *cs, hwaddr addr)
|
|
{
|
|
X86CPU *cpu = X86_CPU(cs);
|
|
CPUX86State *env = &cpu->env;
|
|
|
|
return address_space_ldq(cs->as, addr,
|
|
cpu_get_mem_attrs(env),
|
|
NULL);
|
|
}
|
|
|
|
void x86_stb_phys(CPUState *cs, hwaddr addr, uint8_t val)
|
|
{
|
|
X86CPU *cpu = X86_CPU(cs);
|
|
CPUX86State *env = &cpu->env;
|
|
|
|
address_space_stb(cs->as, addr, val,
|
|
cpu_get_mem_attrs(env),
|
|
NULL);
|
|
}
|
|
|
|
void x86_stl_phys_notdirty(CPUState *cs, hwaddr addr, uint32_t val)
|
|
{
|
|
X86CPU *cpu = X86_CPU(cs);
|
|
CPUX86State *env = &cpu->env;
|
|
|
|
address_space_stl_notdirty(cs->as, addr, val,
|
|
cpu_get_mem_attrs(env),
|
|
NULL);
|
|
}
|
|
|
|
void x86_stw_phys(CPUState *cs, hwaddr addr, uint32_t val)
|
|
{
|
|
X86CPU *cpu = X86_CPU(cs);
|
|
CPUX86State *env = &cpu->env;
|
|
|
|
address_space_stw(cs->as, addr, val,
|
|
cpu_get_mem_attrs(env),
|
|
NULL);
|
|
}
|
|
|
|
void x86_stl_phys(CPUState *cs, hwaddr addr, uint32_t val)
|
|
{
|
|
X86CPU *cpu = X86_CPU(cs);
|
|
CPUX86State *env = &cpu->env;
|
|
|
|
address_space_stl(cs->as, addr, val,
|
|
cpu_get_mem_attrs(env),
|
|
NULL);
|
|
}
|
|
|
|
void x86_stq_phys(CPUState *cs, hwaddr addr, uint64_t val)
|
|
{
|
|
X86CPU *cpu = X86_CPU(cs);
|
|
CPUX86State *env = &cpu->env;
|
|
|
|
address_space_stq(cs->as, addr, val,
|
|
cpu_get_mem_attrs(env),
|
|
NULL);
|
|
}
|
|
#endif
|