yuzu/unicorn
1
0
Fork 0
mirror of https://github.com/yuzu-emu/unicorn.git synced 2025-03-23 05:25:11 +00:00
Code Issues Packages Projects Releases Wiki Activity

target-i386: set G=1 in SMM big real mode selectors

Browse source 
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
This commit is contained in:
Paolo Bonzini 2018-02-13 12:30:54 -05:00 committed by Lioncash
parent 1fed54da89
commit d4621935bb
No known key found for this signature in database
GPG key ID: 4E3C3CC1031BA9C7
1 changed files with 6 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
qemu/target-i386/smm_helper.c
View file

@ -177,22 +177,22 @@ void do_smm_enter(X86CPU *cpu)
cpu_x86_load_seg_cache(env, R_CS, (env->smbase >> 4) & 0xffff, env->smbase,
0xffffffff,
DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
DESC_A_MASK);
DESC_G_MASK | DESC_A_MASK);
cpu_x86_load_seg_cache(env, R_DS, 0, 0, 0xffffffff,
DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
DESC_A_MASK);
DESC_G_MASK | DESC_A_MASK);
cpu_x86_load_seg_cache(env, R_ES, 0, 0, 0xffffffff,
DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
DESC_A_MASK);
DESC_G_MASK | DESC_A_MASK);
cpu_x86_load_seg_cache(env, R_SS, 0, 0, 0xffffffff,
DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
DESC_A_MASK);
DESC_G_MASK | DESC_A_MASK);
cpu_x86_load_seg_cache(env, R_FS, 0, 0, 0xffffffff,
DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
DESC_A_MASK);
DESC_G_MASK | DESC_A_MASK);
cpu_x86_load_seg_cache(env, R_GS, 0, 0, 0xffffffff,
DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
DESC_A_MASK);
DESC_G_MASK | DESC_A_MASK);
}
void helper_rsm(CPUX86State *env)