diff options
| author | bellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162> | 2003-06-25 16:18:05 +0000 |
|---|---|---|
| committer | bellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162> | 2003-06-25 16:18:05 +0000 |
| commit | a363e34cc51220a31691d54e576fb0e29ec02646 (patch) | |
| tree | 529a6c74433e28079cc24084b781477e62f42e8d | |
| parent | ea041c0e3375801694610250a8cc3e1240e2ad87 (diff) | |
| download | qemu-a363e34cc51220a31691d54e576fb0e29ec02646.tar.gz | |
fixed VM86 support in Virtual Linux - fixed compilation issues with gcc 2.96 - cpuid returns now pentium pro in order to avoid F00F bug workaround in Linux kernel
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@277 c046a42c-6fe2-441c-8c8c-71466251a162
| -rw-r--r-- | helper-i386.c | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/helper-i386.c b/helper-i386.c index 9fc40181ae..f47252ac12 100644 --- a/helper-i386.c +++ b/helper-i386.c @@ -216,7 +216,10 @@ static void do_interrupt_protected(int intno, int is_int, int error_code, break; } dpl = (e2 >> DESC_DPL_SHIFT) & 3; - cpl = env->segs[R_CS].selector & 3; + if (env->eflags & VM_MASK) + cpl = 3; + else + cpl = env->segs[R_CS].selector & 3; /* check privledge if software int */ if (is_int && dpl < cpl) raise_exception_err(EXCP0D_GPF, intno * 8 + 2); @@ -572,13 +575,25 @@ void helper_cpuid(void) ECX = 0x6c65746e; EDX = 0x49656e69; } else if (EAX == 1) { + int family, model, stepping; /* EAX = 1 info */ - EAX = 0x52b; +#if 0 + /* pentium 75-200 */ + family = 5; + model = 2; + stepping = 11; +#else + /* pentium pro */ + family = 6; + model = 1; + stepping = 3; +#endif + EAX = (family << 8) | (model << 4) | stepping; EBX = 0; ECX = 0; EDX = CPUID_FP87 | CPUID_DE | CPUID_PSE | CPUID_TSC | CPUID_MSR | CPUID_MCE | - CPUID_CX8; + CPUID_CX8 | CPUID_PGE | CPUID_CMOV; } } @@ -751,7 +766,9 @@ void jmp_seg(int selector, unsigned int new_eip) load_seg_cache(&sc1, e1, e2); if (new_eip > sc1.limit) raise_exception_err(EXCP0D_GPF, selector & 0xfffc); - env->segs[R_CS] = sc1; + env->segs[R_CS].base = sc1.base; + env->segs[R_CS].limit = sc1.limit; + env->segs[R_CS].flags = sc1.flags; env->segs[R_CS].selector = (selector & 0xfffc) | cpl; EIP = new_eip; } else { |