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i386 TLS support

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3644 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2007-11-14 15:18:40 +00:00
parent 4683b130e5
commit 8d18e89309
4 changed files with 161 additions and 12 deletions
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21
linux-user/main.c
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@ -159,7 +159,6 @@ static void set_gate(void *ptr, unsigned int type, unsigned int dpl,
p[1] = tswapl(e2);
}
uint64_t gdt_table[6];
uint64_t idt_table[256];
/* only dpl matters as we do only user space emulation */
@ -2129,14 +2128,18 @@ int main(int argc, char **argv)
set_idt(0x80, 3);
/* linux segment setup */
env->gdt.base = h2g(gdt_table);
env->gdt.limit = sizeof(gdt_table) - 1;
write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
(3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff,
DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
(3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT));
{
uint64_t *gdt_table;
gdt_table = qemu_mallocz(sizeof(uint64_t) * TARGET_GDT_ENTRIES);
env->gdt.base = h2g(gdt_table);
env->gdt.limit = sizeof(uint64_t) * TARGET_GDT_ENTRIES - 1;
write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
(3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff,
DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
(3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT));
}
cpu_x86_load_seg(env, R_CS, __USER_CS);
cpu_x86_load_seg(env, R_DS, __USER_DS);
cpu_x86_load_seg(env, R_ES, __USER_DS);