> -----Original Message----- > From: Dan Carpenter [mailto:dan.carpen...@oracle.com] > Sent: Saturday, September 9, 2017 4:04 AM > To: KY Srinivasan <k...@microsoft.com> > Cc: x...@kernel.org; gre...@linuxfoundation.org; linux- > ker...@vger.kernel.org; de...@linuxdriverproject.org; o...@aepfle.de; > a...@canonical.com; jasow...@redhat.com; t...@linutronix.de; > h...@zytor.com; mi...@kernel.org > Subject: Re: [PATCH 1/1] x86/hyper-V: Allocate the IDT entry early in boot > > On Fri, Sep 08, 2017 at 04:15:57PM -0700, k...@exchange.microsoft.com > wrote: > > From: "K. Y. Srinivasan" <k...@microsoft.com> > > > > Allocate the hypervisor callback IDT entry early in the boot sequence. > > > > I'm guessing this fixes a NULL dereference or something? The changelog > doesn't really say why we are doing this.
The changelog does say what we are doing - allocating the IDT entry early in the boot sequence. The current code would allocate the entry as part of registering the handler when vmbus driver loaded and this caused a problem for the cleanup Thomas had implemented. K. Y > > regards, > dan carpenter
