commit e441570f8abd131ec39ca6e81aaaf0d4ade8572f
author balrog <balrog@c046a42c-6fe2-441c-8c8c-71466251a162> Mon Nov 10 02:55:33 2008 +0000
committer balrog <balrog@c046a42c-6fe2-441c-8c8c-71466251a162> Mon Nov 10 02:55:33 2008 +0000
tree d2c920975161fadf558bc6f5a055393609211c6d
parent 8ce0f8699347bb4beab1cbdb4245907d21cc26ea

use target_mmap() to allocate idt, gdt and ldt (Kirill A. Shutemov).

env->*dt.base should fit target address space, so we should use
target_mmap to allocate them.

Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5666 c046a42c-6fe2-441c-8c8c-71466251a162

linux-user/main.c

diff --git a/linux-user/main.c b/linux-user/main.c
index a5aefce..7b57de3 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -23,6 +23,7 @@
 #include <string.h>
 #include <errno.h>
 #include <unistd.h>
+#include <sys/mman.h>
 
 #include "qemu.h"
 #include "qemu-common.h"
@@ -282,9 +283,8 @@
     p[1] = tswap32(e2);
 }
 
+static uint64_t *idt_table;
 #ifdef TARGET_X86_64
-static uint64_t idt_table[512];
-
 static void set_gate64(void *ptr, unsigned int type, unsigned int dpl,
                        uint64_t addr, unsigned int sel)
 {
@@ -303,8 +303,6 @@
     set_gate64(idt_table + n * 2, 0, dpl, 0, 0);
 }
 #else
-static uint64_t idt_table[256];
-
 static void set_gate(void *ptr, unsigned int type, unsigned int dpl,
                      uint32_t addr, unsigned int sel)
 {
@@ -2465,8 +2463,15 @@
 #endif
 
     /* linux interrupt setup */
-    env->idt.base = h2g(idt_table);
-    env->idt.limit = sizeof(idt_table) - 1;
+#ifndef TARGET_ABI32
+    env->idt.limit = 511;
+#else
+    env->idt.limit = 255;
+#endif
+    env->idt.base = target_mmap(0, sizeof(uint64_t) * (env->idt.limit + 1),
+                                PROT_READ|PROT_WRITE,
+                                MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
+    idt_table = g2h(env->idt.base);
     set_idt(0, 0);
     set_idt(1, 0);
     set_idt(2, 0);
@@ -2492,9 +2497,11 @@
     /* linux segment setup */
     {
         uint64_t *gdt_table;
-        gdt_table = qemu_mallocz(sizeof(uint64_t) * TARGET_GDT_ENTRIES);
-        env->gdt.base = h2g((unsigned long)gdt_table);
+        env->gdt.base = target_mmap(0, sizeof(uint64_t) * TARGET_GDT_ENTRIES,
+                                    PROT_READ|PROT_WRITE,
+                                    MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
         env->gdt.limit = sizeof(uint64_t) * TARGET_GDT_ENTRIES - 1;
+        gdt_table = g2h(env->gdt.base);
 #ifdef TARGET_ABI32
         write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
                  DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |