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unicorn/qemu/target-i386
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Stanislav Shmarov 5f9552657e
target-i386: Fixed syscall posssible segfault 
In user-mode emulation env->idt.base memory is
allocated in linux-user/main.c with
size 8*512 = 4096 (for 64-bit).
When fake interrupt EXCP_SYSCALL is thrown
do_interrupt_user checks destination privilege level
for this fake exception, and tries to read 4 bytes
at address base + (256 * 2^4)=4096, that causes
segfault.

Privlege level was checked only for int's, so lets
read dpl from memory only for this case.

Backports commit 885b7c44e4f8b7a012a92770a0dba8b238662caa from qemu
2018-02-26 02:36:09 -05:00
..
arch_memory_mapping.c x86: Clean up includes 2018-02-19 01:00:09 -05:00
bpt_helper.c cpu-exec: Rename cpu_resume_from_signal() to cpu_loop_exit_noexc() 2018-02-24 17:25:28 -05:00
cc_helper.c target-i386: Perform set/reset_inhibit_irq inline 2018-02-20 13:34:47 -05:00
cc_helper_template.h This code should now build the x86_x64-softmmu part 2. 2017-01-19 22:50:28 +11:00
cpu-qom.h target-i386: make cpu-qom.h not target specific 2018-02-24 00:55:22 -05:00
cpu.c target-i386: present virtual L3 cache info for vcpus 2018-02-25 23:16:14 -05:00
cpu.h target-i386: fix ordering of fields in CPUX86State 2018-02-26 02:34:22 -05:00
excp_helper.c cpu: move exec-all.h inclusion out of cpu.h 2018-02-24 02:39:08 -05:00
fpu_helper.c cpu: move exec-all.h inclusion out of cpu.h 2018-02-24 02:39:08 -05:00
helper.c target-i386: Move user-mode exception actions out of user-exec.c 2018-02-24 17:27:08 -05:00
helper.h target-i386: implement PKE for TCG 2018-02-22 10:18:55 -05:00
int_helper.c cpu: move exec-all.h inclusion out of cpu.h 2018-02-24 02:39:08 -05:00
Makefile.objs target-i386: Enable control registers for MPX 2018-02-20 13:27:46 -05:00
mem_helper.c Fix confusing argument names in some common functions 2018-02-25 03:58:27 -05:00
misc_helper.c cpu: move exec-all.h inclusion out of cpu.h 2018-02-24 02:39:08 -05:00
mpx_helper.c cpu: move exec-all.h inclusion out of cpu.h 2018-02-24 02:39:08 -05:00
ops_sse.h target-i386: Rename XMM_[BWLSDQ] helpers to ZMM_* 2018-02-18 23:53:16 -05:00
ops_sse_header.h target-i386: Rename struct XMMReg to ZMMReg 2018-02-18 23:46:30 -05:00
seg_helper.c target-i386: Fixed syscall posssible segfault 2018-02-26 02:36:09 -05:00
shift_helper_template.h This code should now build the x86_x64-softmmu part 2. 2017-01-19 22:50:28 +11:00
smm_helper.c target-i386: Include log.h in smm_helper 2018-02-24 03:06:07 -05:00
svm.h Clean up ill-advised or unusual header guards 2018-02-25 04:22:46 -05:00
svm_helper.c cpu: move exec-all.h inclusion out of cpu.h 2018-02-24 02:39:08 -05:00
TODO import 2015-08-21 15:04:50 +08:00
topology.h pc: Add x86_topo_ids_from_apicid() 2018-02-25 20:31:36 -05:00
translate.c tcg: Reorg TCGOp chaining 2018-02-25 21:44:50 -05:00
unicorn.c qemu-common: push cpu.h inclusion out of qemu-common.h 2018-02-24 01:50:56 -05:00
unicorn.h New feature: registers can be bulk saved/restored in an opaque blob 2016-08-20 04:14:07 -07:00