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Diffstat (limited to 'target-i386/smm_helper.c')
-rw-r--r--target-i386/smm_helper.c342
1 files changed, 0 insertions, 342 deletions
diff --git a/target-i386/smm_helper.c b/target-i386/smm_helper.c
deleted file mode 100644
index 4dd6a2c544..0000000000
--- a/target-i386/smm_helper.c
+++ /dev/null
@@ -1,342 +0,0 @@
-/*
- * x86 SMM helpers
- *
- * 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/helper-proto.h"
-#include "exec/log.h"
-
-/* SMM support */
-
-#if defined(CONFIG_USER_ONLY)
-
-void do_smm_enter(X86CPU *cpu)
-{
-}
-
-void helper_rsm(CPUX86State *env)
-{
-}
-
-#else
-
-#ifdef TARGET_X86_64
-#define SMM_REVISION_ID 0x00020064
-#else
-#define SMM_REVISION_ID 0x00020000
-#endif
-
-void cpu_smm_update(X86CPU *cpu)
-{
- CPUX86State *env = &cpu->env;
- bool smm_enabled = (env->hflags & HF_SMM_MASK);
-
- if (cpu->smram) {
- memory_region_set_enabled(cpu->smram, smm_enabled);
- }
-}
-
-void do_smm_enter(X86CPU *cpu)
-{
- CPUX86State *env = &cpu->env;
- CPUState *cs = CPU(cpu);
- target_ulong sm_state;
- SegmentCache *dt;
- int i, offset;
-
- qemu_log_mask(CPU_LOG_INT, "SMM: enter\n");
- log_cpu_state_mask(CPU_LOG_INT, CPU(cpu), CPU_DUMP_CCOP);
-
- env->hflags |= HF_SMM_MASK;
- if (env->hflags2 & HF2_NMI_MASK) {
- env->hflags2 |= HF2_SMM_INSIDE_NMI_MASK;
- } else {
- env->hflags2 |= HF2_NMI_MASK;
- }
- cpu_smm_update(cpu);
-
- sm_state = env->smbase + 0x8000;
-
-#ifdef TARGET_X86_64
- for (i = 0; i < 6; i++) {
- dt = &env->segs[i];
- offset = 0x7e00 + i * 16;
- x86_stw_phys(cs, sm_state + offset, dt->selector);
- x86_stw_phys(cs, sm_state + offset + 2, (dt->flags >> 8) & 0xf0ff);
- x86_stl_phys(cs, sm_state + offset + 4, dt->limit);
- x86_stq_phys(cs, sm_state + offset + 8, dt->base);
- }
-
- x86_stq_phys(cs, sm_state + 0x7e68, env->gdt.base);
- x86_stl_phys(cs, sm_state + 0x7e64, env->gdt.limit);
-
- x86_stw_phys(cs, sm_state + 0x7e70, env->ldt.selector);
- x86_stq_phys(cs, sm_state + 0x7e78, env->ldt.base);
- x86_stl_phys(cs, sm_state + 0x7e74, env->ldt.limit);
- x86_stw_phys(cs, sm_state + 0x7e72, (env->ldt.flags >> 8) & 0xf0ff);
-
- x86_stq_phys(cs, sm_state + 0x7e88, env->idt.base);
- x86_stl_phys(cs, sm_state + 0x7e84, env->idt.limit);
-
- x86_stw_phys(cs, sm_state + 0x7e90, env->tr.selector);
- x86_stq_phys(cs, sm_state + 0x7e98, env->tr.base);
- x86_stl_phys(cs, sm_state + 0x7e94, env->tr.limit);
- x86_stw_phys(cs, sm_state + 0x7e92, (env->tr.flags >> 8) & 0xf0ff);
-
- /* ??? Vol 1, 16.5.6 Intel MPX and SMM says that IA32_BNDCFGS
- is saved at offset 7ED0. Vol 3, 34.4.1.1, Table 32-2, has
- 7EA0-7ED7 as "reserved". What's this, and what's really
- supposed to happen? */
- x86_stq_phys(cs, sm_state + 0x7ed0, env->efer);
-
- x86_stq_phys(cs, sm_state + 0x7ff8, env->regs[R_EAX]);
- x86_stq_phys(cs, sm_state + 0x7ff0, env->regs[R_ECX]);
- x86_stq_phys(cs, sm_state + 0x7fe8, env->regs[R_EDX]);
- x86_stq_phys(cs, sm_state + 0x7fe0, env->regs[R_EBX]);
- x86_stq_phys(cs, sm_state + 0x7fd8, env->regs[R_ESP]);
- x86_stq_phys(cs, sm_state + 0x7fd0, env->regs[R_EBP]);
- x86_stq_phys(cs, sm_state + 0x7fc8, env->regs[R_ESI]);
- x86_stq_phys(cs, sm_state + 0x7fc0, env->regs[R_EDI]);
- for (i = 8; i < 16; i++) {
- x86_stq_phys(cs, sm_state + 0x7ff8 - i * 8, env->regs[i]);
- }
- x86_stq_phys(cs, sm_state + 0x7f78, env->eip);
- x86_stl_phys(cs, sm_state + 0x7f70, cpu_compute_eflags(env));
- x86_stl_phys(cs, sm_state + 0x7f68, env->dr[6]);
- x86_stl_phys(cs, sm_state + 0x7f60, env->dr[7]);
-
- x86_stl_phys(cs, sm_state + 0x7f48, env->cr[4]);
- x86_stq_phys(cs, sm_state + 0x7f50, env->cr[3]);
- x86_stl_phys(cs, sm_state + 0x7f58, env->cr[0]);
-
- x86_stl_phys(cs, sm_state + 0x7efc, SMM_REVISION_ID);
- x86_stl_phys(cs, sm_state + 0x7f00, env->smbase);
-#else
- x86_stl_phys(cs, sm_state + 0x7ffc, env->cr[0]);
- x86_stl_phys(cs, sm_state + 0x7ff8, env->cr[3]);
- x86_stl_phys(cs, sm_state + 0x7ff4, cpu_compute_eflags(env));
- x86_stl_phys(cs, sm_state + 0x7ff0, env->eip);
- x86_stl_phys(cs, sm_state + 0x7fec, env->regs[R_EDI]);
- x86_stl_phys(cs, sm_state + 0x7fe8, env->regs[R_ESI]);
- x86_stl_phys(cs, sm_state + 0x7fe4, env->regs[R_EBP]);
- x86_stl_phys(cs, sm_state + 0x7fe0, env->regs[R_ESP]);
- x86_stl_phys(cs, sm_state + 0x7fdc, env->regs[R_EBX]);
- x86_stl_phys(cs, sm_state + 0x7fd8, env->regs[R_EDX]);
- x86_stl_phys(cs, sm_state + 0x7fd4, env->regs[R_ECX]);
- x86_stl_phys(cs, sm_state + 0x7fd0, env->regs[R_EAX]);
- x86_stl_phys(cs, sm_state + 0x7fcc, env->dr[6]);
- x86_stl_phys(cs, sm_state + 0x7fc8, env->dr[7]);
-
- x86_stl_phys(cs, sm_state + 0x7fc4, env->tr.selector);
- x86_stl_phys(cs, sm_state + 0x7f64, env->tr.base);
- x86_stl_phys(cs, sm_state + 0x7f60, env->tr.limit);
- x86_stl_phys(cs, sm_state + 0x7f5c, (env->tr.flags >> 8) & 0xf0ff);
-
- x86_stl_phys(cs, sm_state + 0x7fc0, env->ldt.selector);
- x86_stl_phys(cs, sm_state + 0x7f80, env->ldt.base);
- x86_stl_phys(cs, sm_state + 0x7f7c, env->ldt.limit);
- x86_stl_phys(cs, sm_state + 0x7f78, (env->ldt.flags >> 8) & 0xf0ff);
-
- x86_stl_phys(cs, sm_state + 0x7f74, env->gdt.base);
- x86_stl_phys(cs, sm_state + 0x7f70, env->gdt.limit);
-
- x86_stl_phys(cs, sm_state + 0x7f58, env->idt.base);
- x86_stl_phys(cs, sm_state + 0x7f54, env->idt.limit);
-
- for (i = 0; i < 6; i++) {
- dt = &env->segs[i];
- if (i < 3) {
- offset = 0x7f84 + i * 12;
- } else {
- offset = 0x7f2c + (i - 3) * 12;
- }
- x86_stl_phys(cs, sm_state + 0x7fa8 + i * 4, dt->selector);
- x86_stl_phys(cs, sm_state + offset + 8, dt->base);
- x86_stl_phys(cs, sm_state + offset + 4, dt->limit);
- x86_stl_phys(cs, sm_state + offset, (dt->flags >> 8) & 0xf0ff);
- }
- x86_stl_phys(cs, sm_state + 0x7f14, env->cr[4]);
-
- x86_stl_phys(cs, sm_state + 0x7efc, SMM_REVISION_ID);
- x86_stl_phys(cs, sm_state + 0x7ef8, env->smbase);
-#endif
- /* init SMM cpu state */
-
-#ifdef TARGET_X86_64
- cpu_load_efer(env, 0);
-#endif
- cpu_load_eflags(env, 0, ~(CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C |
- DF_MASK));
- env->eip = 0x00008000;
- cpu_x86_update_cr0(env,
- env->cr[0] & ~(CR0_PE_MASK | CR0_EM_MASK | CR0_TS_MASK |
- CR0_PG_MASK));
- cpu_x86_update_cr4(env, 0);
- env->dr[7] = 0x00000400;
-
- cpu_x86_load_seg_cache(env, R_CS, (env->smbase >> 4) & 0xffff, env->smbase,
- 0xffffffff,
- DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
- DESC_G_MASK | DESC_A_MASK);
- cpu_x86_load_seg_cache(env, R_DS, 0, 0, 0xffffffff,
- DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
- DESC_G_MASK | DESC_A_MASK);
- cpu_x86_load_seg_cache(env, R_ES, 0, 0, 0xffffffff,
- DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
- DESC_G_MASK | DESC_A_MASK);
- cpu_x86_load_seg_cache(env, R_SS, 0, 0, 0xffffffff,
- DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
- DESC_G_MASK | DESC_A_MASK);
- cpu_x86_load_seg_cache(env, R_FS, 0, 0, 0xffffffff,
- DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
- DESC_G_MASK | DESC_A_MASK);
- cpu_x86_load_seg_cache(env, R_GS, 0, 0, 0xffffffff,
- DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
- DESC_G_MASK | DESC_A_MASK);
-}
-
-void helper_rsm(CPUX86State *env)
-{
- X86CPU *cpu = x86_env_get_cpu(env);
- CPUState *cs = CPU(cpu);
- target_ulong sm_state;
- int i, offset;
- uint32_t val;
-
- sm_state = env->smbase + 0x8000;
-#ifdef TARGET_X86_64
- cpu_load_efer(env, x86_ldq_phys(cs, sm_state + 0x7ed0));
-
- env->gdt.base = x86_ldq_phys(cs, sm_state + 0x7e68);
- env->gdt.limit = x86_ldl_phys(cs, sm_state + 0x7e64);
-
- env->ldt.selector = x86_lduw_phys(cs, sm_state + 0x7e70);
- env->ldt.base = x86_ldq_phys(cs, sm_state + 0x7e78);
- env->ldt.limit = x86_ldl_phys(cs, sm_state + 0x7e74);
- env->ldt.flags = (x86_lduw_phys(cs, sm_state + 0x7e72) & 0xf0ff) << 8;
-
- env->idt.base = x86_ldq_phys(cs, sm_state + 0x7e88);
- env->idt.limit = x86_ldl_phys(cs, sm_state + 0x7e84);
-
- env->tr.selector = x86_lduw_phys(cs, sm_state + 0x7e90);
- env->tr.base = x86_ldq_phys(cs, sm_state + 0x7e98);
- env->tr.limit = x86_ldl_phys(cs, sm_state + 0x7e94);
- env->tr.flags = (x86_lduw_phys(cs, sm_state + 0x7e92) & 0xf0ff) << 8;
-
- env->regs[R_EAX] = x86_ldq_phys(cs, sm_state + 0x7ff8);
- env->regs[R_ECX] = x86_ldq_phys(cs, sm_state + 0x7ff0);
- env->regs[R_EDX] = x86_ldq_phys(cs, sm_state + 0x7fe8);
- env->regs[R_EBX] = x86_ldq_phys(cs, sm_state + 0x7fe0);
- env->regs[R_ESP] = x86_ldq_phys(cs, sm_state + 0x7fd8);
- env->regs[R_EBP] = x86_ldq_phys(cs, sm_state + 0x7fd0);
- env->regs[R_ESI] = x86_ldq_phys(cs, sm_state + 0x7fc8);
- env->regs[R_EDI] = x86_ldq_phys(cs, sm_state + 0x7fc0);
- for (i = 8; i < 16; i++) {
- env->regs[i] = x86_ldq_phys(cs, sm_state + 0x7ff8 - i * 8);
- }
- env->eip = x86_ldq_phys(cs, sm_state + 0x7f78);
- cpu_load_eflags(env, x86_ldl_phys(cs, sm_state + 0x7f70),
- ~(CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C | DF_MASK));
- env->dr[6] = x86_ldl_phys(cs, sm_state + 0x7f68);
- env->dr[7] = x86_ldl_phys(cs, sm_state + 0x7f60);
-
- cpu_x86_update_cr4(env, x86_ldl_phys(cs, sm_state + 0x7f48));
- cpu_x86_update_cr3(env, x86_ldq_phys(cs, sm_state + 0x7f50));
- cpu_x86_update_cr0(env, x86_ldl_phys(cs, sm_state + 0x7f58));
-
- for (i = 0; i < 6; i++) {
- offset = 0x7e00 + i * 16;
- cpu_x86_load_seg_cache(env, i,
- x86_lduw_phys(cs, sm_state + offset),
- x86_ldq_phys(cs, sm_state + offset + 8),
- x86_ldl_phys(cs, sm_state + offset + 4),
- (x86_lduw_phys(cs, sm_state + offset + 2) &
- 0xf0ff) << 8);
- }
-
- val = x86_ldl_phys(cs, sm_state + 0x7efc); /* revision ID */
- if (val & 0x20000) {
- env->smbase = x86_ldl_phys(cs, sm_state + 0x7f00);
- }
-#else
- cpu_x86_update_cr0(env, x86_ldl_phys(cs, sm_state + 0x7ffc));
- cpu_x86_update_cr3(env, x86_ldl_phys(cs, sm_state + 0x7ff8));
- cpu_load_eflags(env, x86_ldl_phys(cs, sm_state + 0x7ff4),
- ~(CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C | DF_MASK));
- env->eip = x86_ldl_phys(cs, sm_state + 0x7ff0);
- env->regs[R_EDI] = x86_ldl_phys(cs, sm_state + 0x7fec);
- env->regs[R_ESI] = x86_ldl_phys(cs, sm_state + 0x7fe8);
- env->regs[R_EBP] = x86_ldl_phys(cs, sm_state + 0x7fe4);
- env->regs[R_ESP] = x86_ldl_phys(cs, sm_state + 0x7fe0);
- env->regs[R_EBX] = x86_ldl_phys(cs, sm_state + 0x7fdc);
- env->regs[R_EDX] = x86_ldl_phys(cs, sm_state + 0x7fd8);
- env->regs[R_ECX] = x86_ldl_phys(cs, sm_state + 0x7fd4);
- env->regs[R_EAX] = x86_ldl_phys(cs, sm_state + 0x7fd0);
- env->dr[6] = x86_ldl_phys(cs, sm_state + 0x7fcc);
- env->dr[7] = x86_ldl_phys(cs, sm_state + 0x7fc8);
-
- env->tr.selector = x86_ldl_phys(cs, sm_state + 0x7fc4) & 0xffff;
- env->tr.base = x86_ldl_phys(cs, sm_state + 0x7f64);
- env->tr.limit = x86_ldl_phys(cs, sm_state + 0x7f60);
- env->tr.flags = (x86_ldl_phys(cs, sm_state + 0x7f5c) & 0xf0ff) << 8;
-
- env->ldt.selector = x86_ldl_phys(cs, sm_state + 0x7fc0) & 0xffff;
- env->ldt.base = x86_ldl_phys(cs, sm_state + 0x7f80);
- env->ldt.limit = x86_ldl_phys(cs, sm_state + 0x7f7c);
- env->ldt.flags = (x86_ldl_phys(cs, sm_state + 0x7f78) & 0xf0ff) << 8;
-
- env->gdt.base = x86_ldl_phys(cs, sm_state + 0x7f74);
- env->gdt.limit = x86_ldl_phys(cs, sm_state + 0x7f70);
-
- env->idt.base = x86_ldl_phys(cs, sm_state + 0x7f58);
- env->idt.limit = x86_ldl_phys(cs, sm_state + 0x7f54);
-
- for (i = 0; i < 6; i++) {
- if (i < 3) {
- offset = 0x7f84 + i * 12;
- } else {
- offset = 0x7f2c + (i - 3) * 12;
- }
- cpu_x86_load_seg_cache(env, i,
- x86_ldl_phys(cs,
- sm_state + 0x7fa8 + i * 4) & 0xffff,
- x86_ldl_phys(cs, sm_state + offset + 8),
- x86_ldl_phys(cs, sm_state + offset + 4),
- (x86_ldl_phys(cs,
- sm_state + offset) & 0xf0ff) << 8);
- }
- cpu_x86_update_cr4(env, x86_ldl_phys(cs, sm_state + 0x7f14));
-
- val = x86_ldl_phys(cs, sm_state + 0x7efc); /* revision ID */
- if (val & 0x20000) {
- env->smbase = x86_ldl_phys(cs, sm_state + 0x7ef8);
- }
-#endif
- if ((env->hflags2 & HF2_SMM_INSIDE_NMI_MASK) == 0) {
- env->hflags2 &= ~HF2_NMI_MASK;
- }
- env->hflags2 &= ~HF2_SMM_INSIDE_NMI_MASK;
- env->hflags &= ~HF_SMM_MASK;
- cpu_smm_update(cpu);
-
- qemu_log_mask(CPU_LOG_INT, "SMM: after RSM\n");
- log_cpu_state_mask(CPU_LOG_INT, CPU(cpu), CPU_DUMP_CCOP);
-}
-
-#endif /* !CONFIG_USER_ONLY */
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