From mboxrd@z Thu Jan 1 00:00:00 1970 From: christoffer.dall@linaro.org (Christoffer Dall) Date: Wed, 29 Jun 2016 14:21:18 +0200 Subject: [PATCH 0/5] arm/arm64: KVM: Tighten memory protection flags In-Reply-To: <1465826449-14349-1-git-send-email-marc.zyngier@arm.com> References: <1465826449-14349-1-git-send-email-marc.zyngier@arm.com> Message-ID: <20160629122118.GU26498@cbox> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi Marc, On Mon, Jun 13, 2016 at 03:00:44PM +0100, Marc Zyngier wrote: > So far, the HYP mappings have been fairly relaxed: everything is > RWX. Oddly enough, not everybody is fond of this kind of permissions > at the highest exception level. > > This small series tightens it a bit by making: > - the text mapping read-only > - the rodata mapping read-only + no-exec > - everything else read-write + no-exec > > Of course, that's only valid when VHE is not in action. Tested on > Seattle and Cubietruck, based on 4.7-rc2. > I have applied this to queue with a RB on all the patches. It seems like this series applies on top of the merged page tables stuff, but since I think you're going to repost that, I have just applied this and fixed up the conflicts. Could you have a look at kvmarm/queue and let me know if you think it looks good? (and possibly rebase the merge page tables stuff on top of there when you rework that series?) Thanks! -Christoffer