| commit | c3cd7ffaf57ae6ead5b394cebaeb76164059a57f | |
| author | Gleb Natapov <gleb@redhat.com> | |
| Wed, 28 Apr 2010 16:15:35 +0000 (28 19:15 +0300) | ||
| committer | Avi Kivity <avi@redhat.com> | |
| Sun, 1 Aug 2010 07:35:33 +0000 (1 10:35 +0300) | ||
| tree | d6867ce238cb63a0c8ec69eb7752073569687025 | treesnapshot (tar.gz zip) |
| parent | 411c35b7ef02aefb91e166ffeffad0891d955fcb | commitdiff |
KVM: x86 emulator: x86_emulate_insn() return -1 only in case of emulation failure
Currently emulator returns -1 when emulation failed or IO is needed.
Caller tries to guess whether emulation failed by looking at other
variables. Make it easier for caller to recognise error condition by
always returning -1 in case of failure. For this new emulator
internal return value X86EMUL_IO_NEEDED is introduced. It is used to
distinguish between error condition (which returns X86EMUL_UNHANDLEABLE)
and condition that requires IO exit to userspace to continue emulation.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Currently emulator returns -1 when emulation failed or IO is needed.
Caller tries to guess whether emulation failed by looking at other
variables. Make it easier for caller to recognise error condition by
always returning -1 in case of failure. For this new emulator
internal return value X86EMUL_IO_NEEDED is introduced. It is used to
distinguish between error condition (which returns X86EMUL_UNHANDLEABLE)
and condition that requires IO exit to userspace to continue emulation.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
| arch/x86/include/asm/kvm_emulate.h | diffblobblamehistory | |
| arch/x86/kvm/x86.c | diffblobblamehistory |