Il 28/07/2013 16:00, Arthur Chunqi Li ha scritto:
> +
> + while (1) {
> + asm volatile (
> + "mov %%rsp, %%rsi\n\t"
> + "mov %2, %%rdi\n\t"
> + "vmwrite %%rsi, %%rdi\n\t"
> +
> + LOAD_GPR_C
> + "cmpl $0, %1\n\t"
> + "jne 1f\n\t"
> + LOAD_RFLAGS
> + "vmlaunch\n\t"
> + "jmp 2f\n\t"
> + "1: "
> + "vmresume\n\t"
> + "2: "
> + "setbe %0\n\t"
Perhaps here add
jbe vmx_return
ud2
but it can be added in a follow-up.
> + "vmx_return:\n\t"
> + SAVE_GPR_C
> + SAVE_RFLAGS
> + : "=m"(fail)
> + : "m"(launched), "i"(HOST_RSP)
> + : "rdi", "rsi", "memory", "cc"
> +
> + );
Nice! :)
I pushed the patch.
Paolo
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