b2ea6450d8
When CR0.TS=1, execution of x87 FPU, MMX, and some SSE instructions will cause a Device Not Available (DNA) exception (#NM). System software uses this exception event to lazily context switch FPU state. Before this patch, enter_mmx helpers may be generated just before #NM generation, prematurely resetting FPU state before the guest has a chance to save it. Signed-off-by: Matt Borgerson <contact@mborgerson.com> Message-ID: <CADc=-s5F10muEhLs4f3mxqsEPAHWj0XFfOC2sfFMVHrk9fcpMg@mail.gmail.com> Cc: qemu-stable@nongnu.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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| .. | ||
| hax | ||
| hvf | ||
| kvm | ||
| nvmm | ||
| tcg | ||
| whpx | ||
| arch_dump.c | ||
| arch_memory_mapping.c | ||
| cpu-dump.c | ||
| cpu-internal.h | ||
| cpu-param.h | ||
| cpu-qom.h | ||
| cpu-sysemu.c | ||
| cpu.c | ||
| cpu.h | ||
| gdbstub.c | ||
| helper.c | ||
| helper.h | ||
| host-cpu.c | ||
| host-cpu.h | ||
| Kconfig | ||
| machine.c | ||
| meson.build | ||
| monitor.c | ||
| ops_sse.h | ||
| sev-sysemu-stub.c | ||
| sev.c | ||
| sev.h | ||
| svm.h | ||
| trace-events | ||
| trace.h | ||
| xsave_helper.c | ||