On 14/03/2019 13:51, Paul Durrant wrote:
> @@ -1215,8 +1196,11 @@ static bool vmx_set_guest_bndcfgs(struct vcpu *v, u64
> val)
> return true;
> }
>
> -static bool vmx_get_guest_bndcfgs(struct vcpu *v, u64 *val)
> +static bool vmx_get_guest_bndcfgs(const struct vcpu *cv, u64 *val)
> {
> + /* Get a non-const pointer for vmx_vmcs_enter() */
> + struct vcpu *v = cv->domain->vcpu[cv->vcpu_id];
> +
I'm sorry not having got around to reviewing this series in a timely
fashion, but I am going to specifically nack de-consting games like
this. There is now vcpu state corruption when the MSR is accessed
remotely - this hook *must* remain a mutable vcpu pointer.
There are also multiple other functional issues and regressions
introduced by this series. I'm trying to put together a patch to fix
all of the fallout, but I also might revert the series wholesale
depending on the eventual complexity.
~Andrew
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