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author | Gleb Natapov <gleb@redhat.com> | 2010-03-18 14:20:23 +0100 |
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committer | Avi Kivity <avi@redhat.com> | 2010-05-17 11:16:25 +0200 |
commit | cf8f70bfe38b326bb80b10f76d6544f571040229 (patch) | |
tree | d646456d773a887ca592d174b3d45a57d2779d85 /init | |
parent | KVM: x86 emulator: during rep emulation decrement ECX only if emulation succe... (diff) | |
download | linux-cf8f70bfe38b326bb80b10f76d6544f571040229.tar.xz linux-cf8f70bfe38b326bb80b10f76d6544f571040229.zip |
KVM: x86 emulator: fix in/out emulation.
in/out emulation is broken now. The breakage is different depending
on where IO device resides. If it is in userspace emulator reports
emulation failure since it incorrectly interprets kvm_emulate_pio()
return value. If IO device is in the kernel emulation of 'in' will do
nothing since kvm_emulate_pio() stores result directly into vcpu
registers, so emulator will overwrite result of emulation during
commit of shadowed register.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'init')
0 files changed, 0 insertions, 0 deletions