Date: Mon, 30 Jul 2018 13:59:23 -0400 From: Shawn Webb <shawn.webb@hardenedbsd.org> To: Kyle Evans <kevans@FreeBSD.org> Cc: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r336919 - head/sys/dev/efidev Message-ID: <20180730175923.vtha72pcvzilsspu@mutt-hbsd> In-Reply-To: <201807301740.w6UHeRM0077138@repo.freebsd.org> References: <201807301740.w6UHeRM0077138@repo.freebsd.org>
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[-- Attachment #1 --] On Mon, Jul 30, 2018 at 05:40:27PM +0000, Kyle Evans wrote: > Author: kevans > Date: Mon Jul 30 17:40:27 2018 > New Revision: 336919 > URL: https://svnweb.freebsd.org/changeset/base/336919 > > Log: > efirt: Add tunable to allow disabling EFI Runtime Services > > Leading up to enabling EFIRT in GENERIC, allow runtime services to be > disabled with a new tunable: efi.rt_disabled. This makes it so that EFIRT > can be disabled easily in case we run into some buggy UEFI implementation > and fail to boot. > > Discussed with: imp, kib > MFC after: 1 week > > Modified: > head/sys/dev/efidev/efirt.c > > Modified: head/sys/dev/efidev/efirt.c > ============================================================================== > --- head/sys/dev/efidev/efirt.c Mon Jul 30 17:03:15 2018 (r336918) > +++ head/sys/dev/efidev/efirt.c Mon Jul 30 17:40:27 2018 (r336919) > @@ -133,7 +133,12 @@ efi_init(void) > struct efi_md *map; > caddr_t kmdp; > size_t efisz; > + int rt_disabled; > > + rt_disabled = 0; > + TUNABLE_INT_FETCH("efi.rt_disabled", &rt_disabled); Would it be a good idea to document this tunable in loader(8)? Thanks, -- Shawn Webb Cofounder and Security Engineer HardenedBSD Tor-ified Signal: +1 443-546-8752 Tor+XMPP+OTR: lattera@is.a.hacker.sx GPG Key ID: 0x6A84658F52456EEE GPG Key Fingerprint: 2ABA B6BD EF6A F486 BE89 3D9E 6A84 658F 5245 6EEE [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEKrq2ve9q9Ia+iT2eaoRlj1JFbu4FAltfUfcACgkQaoRlj1JF bu77uRAAsvnFbf1X+VPWde3niomyp8HY2jF5a8LUuIbbcmjvTDOogVnZa8yFi1iE snTspDZFMqBuLrVhM943qFuG+rYQ6E60tNpngC9rvxvZHcQVarJVtYyi5Qnnbh2H bwklLkrmazLwGTe9sf3ncPdYiNnTtYOfRz9LcATZg88+d6Qmb+cz+wGD0S87SZxm dFVSA//2YnvNqvBVQBwAGU5vRIx0AfIGVxQwnBygL0dzGa/uUyXj8KFoX7Mdrq5o ZGPWb6MQIQdL1hvyIGuM9oDc01yevT1CoxIFzpzUDD95o8eOaGdkoDTFCevcPlGU cW0WTMmz1j/IWRKBxwygPJsMeashzQrlSwRnHDDqpXvwoW54uLZ+IuuHPOsGBVEP pJnSER8Sc/lJW+L2Tu/4Gs1LZFyyiFbhAKZ0AxbXb/iM7tkRiy3FqxAadVjpgbqP E8BmrFHsEsVVIUSx6eUKxNEPnTGNSTCruktL4kWkpppcc7rgM8lsIwWRJ+D7Dq5V zr1ANPxutobFZo4RAhISlrfkrZXJQo7wFwW1AQbky4F2pi51jTkq7bvDkO3bzIxY khx9ZiQCtKsbAfMHPwZVMrN2Jdt3UaTwTtl4S/kmIi8AEtNOg3Ch7y5YypzuzZN7 NITN5vm6NBlZGPdIiqWErQj9yFYrp9iFNVkB3yLGi2mPxiURbjw= =qAeG -----END PGP SIGNATURE-----
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