mirror of
https://github.com/yuzu-emu/unicorn.git
synced 2024-10-21 01:58:19 +02:00
c3a0cba5b1
The code that calculates the set of supported XSAVE components on CPUID looks at ext_save_areas to find out which components should be enabled. However, if there are zeroed entries in the ext_save_areas array, the ((env->features[esa->feature] & esa->bits) == esa->bits) check will always succeed and QEMU will unconditionally try to enable the component. Luckily this never caused any problems because the only missing entry in ext_save_areas is the PT State component (bit 8), and KVM currently doesn't support it (so it was cleared on ena_mask). But the code was still incorrect and would break if KVM starts returning CPUID[EAX=0xD,ECX=0].EAX[bit 8] as supported on GET_SUPPORTED_CPUID. Fix the problem by changing the code to not enable a XSAVE component if ExtSaveArea::bits is zero. Backports commit 9646f4927faf68e8690588c2fd6dc9834c440b58 from qemu |
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| .. | ||
| crypto | ||
| default-configs | ||
| docs | ||
| fpu | ||
| hw | ||
| include | ||
| qapi | ||
| qobject | ||
| qom | ||
| scripts | ||
| target-arm | ||
| target-i386 | ||
| target-m68k | ||
| target-mips | ||
| target-sparc | ||
| tcg | ||
| util | ||
| aarch64.h | ||
| aarch64eb.h | ||
| accel.c | ||
| arm.h | ||
| armeb.h | ||
| CODING_STYLE | ||
| configure | ||
| COPYING | ||
| COPYING.LIB | ||
| cpu-exec-common.c | ||
| cpu-exec.c | ||
| cpus.c | ||
| cputlb.c | ||
| exec.c | ||
| gen_all_header.sh | ||
| glib_compat.c | ||
| HACKING | ||
| header_gen.py | ||
| ioport.c | ||
| LICENSE | ||
| m68k.h | ||
| Makefile | ||
| Makefile.objs | ||
| Makefile.target | ||
| memory_mapping.c | ||
| memory.c | ||
| mips64.h | ||
| mips64el.h | ||
| mips.h | ||
| mipsel.h | ||
| powerpc.h | ||
| qapi-schema.json | ||
| qemu-timer.c | ||
| rules.mak | ||
| softmmu_template.h | ||
| sparc64.h | ||
| sparc.h | ||
| tcg-runtime.c | ||
| translate-all.c | ||
| translate-all.h | ||
| translate-common.c | ||
| unicorn_common.h | ||
| VERSION | ||
| vl.c | ||
| vl.h | ||
| x86_64.h | ||