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unicorn/qemu/target/i386/smm_helper.c

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import
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/*
* 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/>.
*/
x86: Clean up includes Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes. Backports commit b6a0aa053711e27e1a7825c1fca662beb05bee6f from qemu
2018-02-19 05:56:22 +00:00
#include "qemu/osdep.h"
target-i386: Include log.h in smm_helper Fixes a compilation error
2018-02-24 08:06:06 +00:00
#include "qemu/log.h"
import
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#include "cpu.h"
#include "exec/helper-proto.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 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;
target-i386: mask NMIs on entry to SMM QEMU is not blocking NMIs on entry to SMM. Implementing this has to cover a few corner cases, because: - NMIs can then be enabled by an IRET instruction and there is no mechanism to _set_ the "NMIs masked" flag on exit from SMM: "A special case can occur if an SMI handler nests inside an NMI handler and then another NMI occurs. [...] When the processor enters SMM while executing an NMI handler, the processor saves the SMRAM state save map but does not save the attribute to keep NMI interrupts disabled. - However, there is some hidden state, because "If NMIs were blocked before the SMI occurred [and no IRET is executed while in SMM], they are blocked after execution of RSM." This is represented by the new HF2_SMM_INSIDE_NMI_MASK bit. If it is zero, NMIs are _unblocked_ on exit from RSM. Backports commit 9982f74bad70479939491b69522da047a3be5a0d from qemu
2018-02-13 17:29:23 +00:00
if (env->hflags2 & HF2_NMI_MASK) {
env->hflags2 |= HF2_SMM_INSIDE_NMI_MASK;
} else {
env->hflags2 |= HF2_NMI_MASK;
}
import
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sm_state = env->smbase + 0x8000;
#ifdef TARGET_X86_64
for (i = 0; i < 6; i++) {
dt = &env->segs[i];
offset = 0x7e00 + i * 16;
target-i386: Use correct memory attributes for memory accesses These include page table walks, SVM accesses and SMM state save accesses. The bulk of the patch is obtained with sed -i 's/\(\<[a-z_]*_phys\(_notdirty\)\?\>(cs\)->as,/x86_\1,/' Backports commit b216aa6c0fcbaa8ff4128969c14594896a5485a4 from qemu
2018-02-13 16:52:25 +00:00
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);
import
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}
target-i386: Use correct memory attributes for memory accesses These include page table walks, SVM accesses and SMM state save accesses. The bulk of the patch is obtained with sed -i 's/\(\<[a-z_]*_phys\(_notdirty\)\?\>(cs\)->as,/x86_\1,/' Backports commit b216aa6c0fcbaa8ff4128969c14594896a5485a4 from qemu
2018-02-13 16:52:25 +00:00
x86_stq_phys(cs, sm_state + 0x7e68, env->gdt.base);
x86_stl_phys(cs, sm_state + 0x7e64, env->gdt.limit);
import
2015-08-21 07:04:50 +00:00
target-i386: Use correct memory attributes for memory accesses These include page table walks, SVM accesses and SMM state save accesses. The bulk of the patch is obtained with sed -i 's/\(\<[a-z_]*_phys\(_notdirty\)\?\>(cs\)->as,/x86_\1,/' Backports commit b216aa6c0fcbaa8ff4128969c14594896a5485a4 from qemu
2018-02-13 16:52:25 +00:00
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);
import
2015-08-21 07:04:50 +00:00
target-i386: Use correct memory attributes for memory accesses These include page table walks, SVM accesses and SMM state save accesses. The bulk of the patch is obtained with sed -i 's/\(\<[a-z_]*_phys\(_notdirty\)\?\>(cs\)->as,/x86_\1,/' Backports commit b216aa6c0fcbaa8ff4128969c14594896a5485a4 from qemu
2018-02-13 16:52:25 +00:00
x86_stq_phys(cs, sm_state + 0x7e88, env->idt.base);
x86_stl_phys(cs, sm_state + 0x7e84, env->idt.limit);
import
2015-08-21 07:04:50 +00:00
target-i386: Use correct memory attributes for memory accesses These include page table walks, SVM accesses and SMM state save accesses. The bulk of the patch is obtained with sed -i 's/\(\<[a-z_]*_phys\(_notdirty\)\?\>(cs\)->as,/x86_\1,/' Backports commit b216aa6c0fcbaa8ff4128969c14594896a5485a4 from qemu
2018-02-13 16:52:25 +00:00
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);
import
2015-08-21 07:04:50 +00:00
target-i386: Enable control registers for MPX Enable and disable at CPL changes, MSR changes, and XRSTOR changes. Backports commit f4f1110e4b34797ddfa87bb28f9518b9256778be from qemu
2018-02-20 18:00:05 +00:00
/* ??? 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? */
target-i386: Use correct memory attributes for memory accesses These include page table walks, SVM accesses and SMM state save accesses. The bulk of the patch is obtained with sed -i 's/\(\<[a-z_]*_phys\(_notdirty\)\?\>(cs\)->as,/x86_\1,/' Backports commit b216aa6c0fcbaa8ff4128969c14594896a5485a4 from qemu
2018-02-13 16:52:25 +00:00
x86_stq_phys(cs, sm_state + 0x7ed0, env->efer);
import
2015-08-21 07:04:50 +00:00
target-i386: Use correct memory attributes for memory accesses These include page table walks, SVM accesses and SMM state save accesses. The bulk of the patch is obtained with sed -i 's/\(\<[a-z_]*_phys\(_notdirty\)\?\>(cs\)->as,/x86_\1,/' Backports commit b216aa6c0fcbaa8ff4128969c14594896a5485a4 from qemu
2018-02-13 16:52:25 +00:00
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]);
import
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for (i = 8; i < 16; i++) {
target-i386: Use correct memory attributes for memory accesses These include page table walks, SVM accesses and SMM state save accesses. The bulk of the patch is obtained with sed -i 's/\(\<[a-z_]*_phys\(_notdirty\)\?\>(cs\)->as,/x86_\1,/' Backports commit b216aa6c0fcbaa8ff4128969c14594896a5485a4 from qemu
2018-02-13 16:52:25 +00:00
x86_stq_phys(cs, sm_state + 0x7ff8 - i * 8, env->regs[i]);
import
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}
target-i386: Use correct memory attributes for memory accesses These include page table walks, SVM accesses and SMM state save accesses. The bulk of the patch is obtained with sed -i 's/\(\<[a-z_]*_phys\(_notdirty\)\?\>(cs\)->as,/x86_\1,/' Backports commit b216aa6c0fcbaa8ff4128969c14594896a5485a4 from qemu
2018-02-13 16:52:25 +00:00
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]);
import
2015-08-21 07:04:50 +00:00
target-i386: Use correct memory attributes for memory accesses These include page table walks, SVM accesses and SMM state save accesses. The bulk of the patch is obtained with sed -i 's/\(\<[a-z_]*_phys\(_notdirty\)\?\>(cs\)->as,/x86_\1,/' Backports commit b216aa6c0fcbaa8ff4128969c14594896a5485a4 from qemu
2018-02-13 16:52:25 +00:00
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]);
import
2015-08-21 07:04:50 +00:00
target-i386: Use correct memory attributes for memory accesses These include page table walks, SVM accesses and SMM state save accesses. The bulk of the patch is obtained with sed -i 's/\(\<[a-z_]*_phys\(_notdirty\)\?\>(cs\)->as,/x86_\1,/' Backports commit b216aa6c0fcbaa8ff4128969c14594896a5485a4 from qemu
2018-02-13 16:52:25 +00:00
x86_stl_phys(cs, sm_state + 0x7efc, SMM_REVISION_ID);
x86_stl_phys(cs, sm_state + 0x7f00, env->smbase);
import
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#else
target-i386: Use correct memory attributes for memory accesses These include page table walks, SVM accesses and SMM state save accesses. The bulk of the patch is obtained with sed -i 's/\(\<[a-z_]*_phys\(_notdirty\)\?\>(cs\)->as,/x86_\1,/' Backports commit b216aa6c0fcbaa8ff4128969c14594896a5485a4 from qemu
2018-02-13 16:52:25 +00:00
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);
import
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for (i = 0; i < 6; i++) {
dt = &env->segs[i];
if (i < 3) {
offset = 0x7f84 + i * 12;
} else {
offset = 0x7f2c + (i - 3) * 12;
}
target-i386: Use correct memory attributes for memory accesses These include page table walks, SVM accesses and SMM state save accesses. The bulk of the patch is obtained with sed -i 's/\(\<[a-z_]*_phys\(_notdirty\)\?\>(cs\)->as,/x86_\1,/' Backports commit b216aa6c0fcbaa8ff4128969c14594896a5485a4 from qemu
2018-02-13 16:52:25 +00:00
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);
import
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}
target-i386: Use correct memory attributes for memory accesses These include page table walks, SVM accesses and SMM state save accesses. The bulk of the patch is obtained with sed -i 's/\(\<[a-z_]*_phys\(_notdirty\)\?\>(cs\)->as,/x86_\1,/' Backports commit b216aa6c0fcbaa8ff4128969c14594896a5485a4 from qemu
2018-02-13 16:52:25 +00:00
x86_stl_phys(cs, sm_state + 0x7f14, env->cr[4]);
import
2015-08-21 07:04:50 +00:00
target-i386: Use correct memory attributes for memory accesses These include page table walks, SVM accesses and SMM state save accesses. The bulk of the patch is obtained with sed -i 's/\(\<[a-z_]*_phys\(_notdirty\)\?\>(cs\)->as,/x86_\1,/' Backports commit b216aa6c0fcbaa8ff4128969c14594896a5485a4 from qemu
2018-02-13 16:52:25 +00:00
x86_stl_phys(cs, sm_state + 0x7efc, SMM_REVISION_ID);
x86_stl_phys(cs, sm_state + 0x7ef8, env->smbase);
import
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#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 |
target-i386: set G=1 in SMM big real mode selectors Because the limit field's bits 31:20 is 1, G should be 1. VMX actually enforces this, let's do it for completeness in QEMU as well. Backports commit b4854f1384176d897747de236f426d020668fa3c from qemu
2018-02-13 17:30:54 +00:00
DESC_G_MASK | DESC_A_MASK);
import
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cpu_x86_load_seg_cache(env, R_DS, 0, 0, 0xffffffff,
DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
target-i386: set G=1 in SMM big real mode selectors Because the limit field's bits 31:20 is 1, G should be 1. VMX actually enforces this, let's do it for completeness in QEMU as well. Backports commit b4854f1384176d897747de236f426d020668fa3c from qemu
2018-02-13 17:30:54 +00:00
DESC_G_MASK | DESC_A_MASK);
import
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cpu_x86_load_seg_cache(env, R_ES, 0, 0, 0xffffffff,
DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
target-i386: set G=1 in SMM big real mode selectors Because the limit field's bits 31:20 is 1, G should be 1. VMX actually enforces this, let's do it for completeness in QEMU as well. Backports commit b4854f1384176d897747de236f426d020668fa3c from qemu
2018-02-13 17:30:54 +00:00
DESC_G_MASK | DESC_A_MASK);
import
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cpu_x86_load_seg_cache(env, R_SS, 0, 0, 0xffffffff,
DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
target-i386: set G=1 in SMM big real mode selectors Because the limit field's bits 31:20 is 1, G should be 1. VMX actually enforces this, let's do it for completeness in QEMU as well. Backports commit b4854f1384176d897747de236f426d020668fa3c from qemu
2018-02-13 17:30:54 +00:00
DESC_G_MASK | DESC_A_MASK);
import
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cpu_x86_load_seg_cache(env, R_FS, 0, 0, 0xffffffff,
DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
target-i386: set G=1 in SMM big real mode selectors Because the limit field's bits 31:20 is 1, G should be 1. VMX actually enforces this, let's do it for completeness in QEMU as well. Backports commit b4854f1384176d897747de236f426d020668fa3c from qemu
2018-02-13 17:30:54 +00:00
DESC_G_MASK | DESC_A_MASK);
import
2015-08-21 07:04:50 +00:00
cpu_x86_load_seg_cache(env, R_GS, 0, 0, 0xffffffff,
DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
target-i386: set G=1 in SMM big real mode selectors Because the limit field's bits 31:20 is 1, G should be 1. VMX actually enforces this, let's do it for completeness in QEMU as well. Backports commit b4854f1384176d897747de236f426d020668fa3c from qemu
2018-02-13 17:30:54 +00:00
DESC_G_MASK | DESC_A_MASK);
import
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}
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
target-i386: Use correct memory attributes for memory accesses These include page table walks, SVM accesses and SMM state save accesses. The bulk of the patch is obtained with sed -i 's/\(\<[a-z_]*_phys\(_notdirty\)\?\>(cs\)->as,/x86_\1,/' Backports commit b216aa6c0fcbaa8ff4128969c14594896a5485a4 from qemu
2018-02-13 16:52:25 +00:00
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);
import
2015-08-21 07:04:50 +00:00
for (i = 8; i < 16; i++) {
target-i386: Use correct memory attributes for memory accesses These include page table walks, SVM accesses and SMM state save accesses. The bulk of the patch is obtained with sed -i 's/\(\<[a-z_]*_phys\(_notdirty\)\?\>(cs\)->as,/x86_\1,/' Backports commit b216aa6c0fcbaa8ff4128969c14594896a5485a4 from qemu
2018-02-13 16:52:25 +00:00
env->regs[i] = x86_ldq_phys(cs, sm_state + 0x7ff8 - i * 8);
import
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}
target-i386: Use correct memory attributes for memory accesses These include page table walks, SVM accesses and SMM state save accesses. The bulk of the patch is obtained with sed -i 's/\(\<[a-z_]*_phys\(_notdirty\)\?\>(cs\)->as,/x86_\1,/' Backports commit b216aa6c0fcbaa8ff4128969c14594896a5485a4 from qemu
2018-02-13 16:52:25 +00:00
env->eip = x86_ldq_phys(cs, sm_state + 0x7f78);
cpu_load_eflags(env, x86_ldl_phys(cs, sm_state + 0x7f70),
import
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~(CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C | DF_MASK));
target-i386: Use correct memory attributes for memory accesses These include page table walks, SVM accesses and SMM state save accesses. The bulk of the patch is obtained with sed -i 's/\(\<[a-z_]*_phys\(_notdirty\)\?\>(cs\)->as,/x86_\1,/' Backports commit b216aa6c0fcbaa8ff4128969c14594896a5485a4 from qemu
2018-02-13 16:52:25 +00:00
env->dr[6] = x86_ldl_phys(cs, sm_state + 0x7f68);
env->dr[7] = x86_ldl_phys(cs, sm_state + 0x7f60);
import
2015-08-21 07:04:50 +00:00
target-i386: Use correct memory attributes for memory accesses These include page table walks, SVM accesses and SMM state save accesses. The bulk of the patch is obtained with sed -i 's/\(\<[a-z_]*_phys\(_notdirty\)\?\>(cs\)->as,/x86_\1,/' Backports commit b216aa6c0fcbaa8ff4128969c14594896a5485a4 from qemu
2018-02-13 16:52:25 +00:00
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));
import
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for (i = 0; i < 6; i++) {
offset = 0x7e00 + i * 16;
cpu_x86_load_seg_cache(env, i,
target-i386: Use correct memory attributes for memory accesses These include page table walks, SVM accesses and SMM state save accesses. The bulk of the patch is obtained with sed -i 's/\(\<[a-z_]*_phys\(_notdirty\)\?\>(cs\)->as,/x86_\1,/' Backports commit b216aa6c0fcbaa8ff4128969c14594896a5485a4 from qemu
2018-02-13 16:52:25 +00:00
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) &
import
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0xf0ff) << 8);
}
target-i386: Use correct memory attributes for memory accesses These include page table walks, SVM accesses and SMM state save accesses. The bulk of the patch is obtained with sed -i 's/\(\<[a-z_]*_phys\(_notdirty\)\?\>(cs\)->as,/x86_\1,/' Backports commit b216aa6c0fcbaa8ff4128969c14594896a5485a4 from qemu
2018-02-13 16:52:25 +00:00
val = x86_ldl_phys(cs, sm_state + 0x7efc); /* revision ID */
import
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if (val & 0x20000) {
target-i386: allow any alignment for SMBASE Processors up to the Pentium (says Bochs---I do not have old enough manuals) require a 32KiB alignment for the SMBASE, but newer processors do not need that, and Tiano Core will use non-aligned SMBASE values. Backports commit dd75d4fcb4a82c34d4f466e7fc166162b71ff740 from qemu
2018-02-16 21:00:10 +00:00
env->smbase = x86_ldl_phys(cs, sm_state + 0x7f00);
import
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}
#else
target-i386: Use correct memory attributes for memory accesses These include page table walks, SVM accesses and SMM state save accesses. The bulk of the patch is obtained with sed -i 's/\(\<[a-z_]*_phys\(_notdirty\)\?\>(cs\)->as,/x86_\1,/' Backports commit b216aa6c0fcbaa8ff4128969c14594896a5485a4 from qemu
2018-02-13 16:52:25 +00:00
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),
import
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~(CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C | DF_MASK));
target-i386: Use correct memory attributes for memory accesses These include page table walks, SVM accesses and SMM state save accesses. The bulk of the patch is obtained with sed -i 's/\(\<[a-z_]*_phys\(_notdirty\)\?\>(cs\)->as,/x86_\1,/' Backports commit b216aa6c0fcbaa8ff4128969c14594896a5485a4 from qemu
2018-02-13 16:52:25 +00:00
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);
import
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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,
target-i386: Use correct memory attributes for memory accesses These include page table walks, SVM accesses and SMM state save accesses. The bulk of the patch is obtained with sed -i 's/\(\<[a-z_]*_phys\(_notdirty\)\?\>(cs\)->as,/x86_\1,/' Backports commit b216aa6c0fcbaa8ff4128969c14594896a5485a4 from qemu
2018-02-13 16:52:25 +00:00
x86_ldl_phys(cs,
import
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sm_state + 0x7fa8 + i * 4) & 0xffff,
target-i386: Use correct memory attributes for memory accesses These include page table walks, SVM accesses and SMM state save accesses. The bulk of the patch is obtained with sed -i 's/\(\<[a-z_]*_phys\(_notdirty\)\?\>(cs\)->as,/x86_\1,/' Backports commit b216aa6c0fcbaa8ff4128969c14594896a5485a4 from qemu
2018-02-13 16:52:25 +00:00
x86_ldl_phys(cs, sm_state + offset + 8),
x86_ldl_phys(cs, sm_state + offset + 4),
(x86_ldl_phys(cs,
import
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sm_state + offset) & 0xf0ff) << 8);
}
target-i386: Use correct memory attributes for memory accesses These include page table walks, SVM accesses and SMM state save accesses. The bulk of the patch is obtained with sed -i 's/\(\<[a-z_]*_phys\(_notdirty\)\?\>(cs\)->as,/x86_\1,/' Backports commit b216aa6c0fcbaa8ff4128969c14594896a5485a4 from qemu
2018-02-13 16:52:25 +00:00
cpu_x86_update_cr4(env, x86_ldl_phys(cs, sm_state + 0x7f14));
import
2015-08-21 07:04:50 +00:00
target-i386: Use correct memory attributes for memory accesses These include page table walks, SVM accesses and SMM state save accesses. The bulk of the patch is obtained with sed -i 's/\(\<[a-z_]*_phys\(_notdirty\)\?\>(cs\)->as,/x86_\1,/' Backports commit b216aa6c0fcbaa8ff4128969c14594896a5485a4 from qemu
2018-02-13 16:52:25 +00:00
val = x86_ldl_phys(cs, sm_state + 0x7efc); /* revision ID */
import
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if (val & 0x20000) {
target-i386: allow any alignment for SMBASE Processors up to the Pentium (says Bochs---I do not have old enough manuals) require a 32KiB alignment for the SMBASE, but newer processors do not need that, and Tiano Core will use non-aligned SMBASE values. Backports commit dd75d4fcb4a82c34d4f466e7fc166162b71ff740 from qemu
2018-02-16 21:00:10 +00:00
env->smbase = x86_ldl_phys(cs, sm_state + 0x7ef8);
import
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}
#endif
target-i386: mask NMIs on entry to SMM QEMU is not blocking NMIs on entry to SMM. Implementing this has to cover a few corner cases, because: - NMIs can then be enabled by an IRET instruction and there is no mechanism to _set_ the "NMIs masked" flag on exit from SMM: "A special case can occur if an SMI handler nests inside an NMI handler and then another NMI occurs. [...] When the processor enters SMM while executing an NMI handler, the processor saves the SMRAM state save map but does not save the attribute to keep NMI interrupts disabled. - However, there is some hidden state, because "If NMIs were blocked before the SMI occurred [and no IRET is executed while in SMM], they are blocked after execution of RSM." This is represented by the new HF2_SMM_INSIDE_NMI_MASK bit. If it is zero, NMIs are _unblocked_ on exit from RSM. Backports commit 9982f74bad70479939491b69522da047a3be5a0d from qemu
2018-02-13 17:29:23 +00:00
if ((env->hflags2 & HF2_SMM_INSIDE_NMI_MASK) == 0) {
env->hflags2 &= ~HF2_NMI_MASK;
}
env->hflags2 &= ~HF2_SMM_INSIDE_NMI_MASK;
import
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env->hflags &= ~HF_SMM_MASK;
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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