On Tue, 13 Sep 2011 10:45:40 +0300
Avi Kivity <avi@xxxxxxxxxx> wrote:
> Simplifies further generalization of decode.
>
> Signed-off-by: Avi Kivity <avi@xxxxxxxxxx>
> ---
> arch/x86/include/asm/kvm_emulate.h | 2 ++
> arch/x86/kvm/emulate.c | 34 +++++++++++++++++-----------------
> 2 files changed, 19 insertions(+), 17 deletions(-)
>
> diff --git a/arch/x86/include/asm/kvm_emulate.h b/arch/x86/include/asm/kvm_emulate.h
> index 6040d11..56bac3e 100644
> --- a/arch/x86/include/asm/kvm_emulate.h
> +++ b/arch/x86/include/asm/kvm_emulate.h
> @@ -275,6 +275,8 @@ struct x86_emulate_ctxt {
> unsigned long _eip;
> /* Fields above regs are cleared together. */
> unsigned long regs[NR_VCPU_REGS];
> + struct operand memop;
> + struct operand *memopp;
> struct fetch_cache fetch;
> struct read_cache io_read;
> struct read_cache mem_read;
Once the emulator context gets stablized, some comments will be nice
to know which ones are supposed to be accessed from outside of the
emulator, and which ones are only for the emulator internal usage.
Practically, knowing each member's lifetime, decode stage only or
emulation stage only or throughout the emulation, will make it easy
to avoid extra ctxt/regs initialization and ... maybe more.
Takuya
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