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Peter Anvin" , Dave Hansen , kvm list , X86 ML , Linux-MM , LKML , Konrad Rzeszutek Wilk , jan.setjeeilers@oracle.com, Jonathan Adams Subject: Re: [RFC KVM 24/27] kvm/isolation: KVM page fault handler Message-ID: <20190514072110.GF2589@hirez.programming.kicks-ass.net> References: <1557758315-12667-1-git-send-email-alexandre.chartre@oracle.com> <1557758315-12667-25-git-send-email-alexandre.chartre@oracle.com> <20190513151500.GY2589@hirez.programming.kicks-ass.net> <13F2FA4F-116F-40C6-9472-A1DE689FE061@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Mon, May 13, 2019 at 07:02:30PM -0700, Andy Lutomirski wrote: > This sounds like a great use case for static_call(). PeterZ, do you > suppose we could wire up static_call() with the module infrastructure > to make it easy to do "static_call to such-and-such GPL module symbol > if that symbol is in a loaded module, else nop"? You're basically asking it to do dynamic linking. And I suppose that is technically possible. However, I'm really starting to think kvm (or at least these parts of it that want to play these games) had better not be a module anymore.