[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] System call from a Guest Linux
From: |
Jong Chun Park |
Subject: |
[Qemu-devel] System call from a Guest Linux |
Date: |
Wed, 3 Feb 2010 11:03:59 -0700 |
Hi, all?
First of all, I apologize you for this spam. I'm working with QEMU v0.12.1 with i386 Linux guest on x86-64 Linux host. I'm trying to find a point in the source code where a system call from the guest OS is handled. If I'm not mistaken, QEMU disassembles an instruction of INT # in a switch statement of target-i386/translate.c and then calls helper_sysenter of target-i386/op_helper.c. The problem is how to tell difference between a system call of the guest OS and a system call of QEMU (I'm not sure of this, though). Assume the following code is executed after compilation in the guest OS:
int main() {
if (access("hello.txt", R_OK)!=0) {
- [Qemu-devel] System call from a Guest Linux,
Jong Chun Park <=