On 06/23/2010 12:15 PM, Alexander Graf wrote:
Alex, Joerg, well gvmcb_{read,write}{32,64}() work for nsvm? All that kmapping is incredibly annoying.
I'm sceptical that we can actually get that to be as fast as a direct kmap, but apart from that I don't see an obvious reason why it wouldn't.
I'm thinking of
struct kvm_cached_guest_page {
void __user **pmem;
};
static u64 kvm_read_cached_guest_page(struct kvm_vcpu *vcpu, struct
kvm_cached_guest_page *kcgp, unsigned offset)
{
u64 __user *mem = *rcu_dereference(kcgp->kcgp) + offset;
u64 ret;
if (get_user(ret, mem))
kvm_make_request(KVM_REQ_TRIPLE_FAULT, vcpu);
return ret;
}
We could even use our own exception handler to take the error case out
of line.
--
error compiling committee.c: too many arguments to function
--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
