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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alpha | ||
arm | ||
avr | ||
cris | ||
hexagon | ||
hppa | ||
i386 | ||
loongarch | ||
m68k | ||
microblaze | ||
mips | ||
nios2 | ||
openrisc | ||
ppc | ||
riscv | ||
rx | ||
s390x | ||
sh4 | ||
sparc | ||
tricore | ||
xtensa | ||
Kconfig | ||
meson.build |