#ifndef BPF_EXT #define BPF_EXT #ifndef SKF_AD_OFF # define SKF_AD_OFF (-0x1000) #endif #ifndef SKF_AD_PROTOCOL # define SKF_AD_PROTOCOL 0 #endif #ifndef SKF_AD_PKTTYPE # define SKF_AD_PKTTYPE 4 #endif #ifndef SKF_AD_IFINDEX # define SKF_AD_IFINDEX 8 #endif #ifndef SKF_AD_NLATTR # define SKF_AD_NLATTR 12 #endif #ifndef SKF_AD_NLATTR_NEST # define SKF_AD_NLATTR_NEST 16 #endif #ifndef SKF_AD_MARK # define SKF_AD_MARK 20 #endif #ifndef SKF_AD_QUEUE # define SKF_AD_QUEUE 24 #endif #ifndef SKF_AD_HATYPE # define SKF_AD_HATYPE 28 #endif #ifndef SKF_AD_RXHASH # define SKF_AD_RXHASH 32 #endif #ifndef SKF_AD_CPU # define SKF_AD_CPU 36 #endif #ifndef SKF_AD_VLAN_TAG # define SKF_AD_VLAN_TAG 44 #endif #ifndef SKF_AD_VLAN_TAG_PRESENT # define SKF_AD_VLAN_TAG_PRESENT 48 #endif #ifndef SKF_AD_PAY_OFFSET # define SKF_AD_PAY_OFFSET 52 #endif #endif /* BPF_EXT */ it/'>net-next.git
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authorJiri Kosina <jkosina@suse.cz>2017-01-27 22:25:52 +0000
committerIngo Molnar <mingo@kernel.org>2017-01-28 09:18:56 +0100
commitbf29bddf0417a4783da3b24e8c9e017ac649326f (patch)
tree54a05a4883b73f80e4e1d8c4b15750aa01c39932 /security/selinux/Makefile
parent883af14e67e8b8702b5560aa64c888c0cd0bd66c (diff)
x86/efi: Always map the first physical page into the EFI pagetables
Commit: 129766708 ("x86/efi: Only map RAM into EFI page tables if in mixed-mode") stopped creating 1:1 mappings for all RAM, when running in native 64-bit mode. It turns out though that there are 64-bit EFI implementations in the wild (this particular problem has been reported on a Lenovo Yoga 710-11IKB), which still make use of the first physical page for their own private use, even though they explicitly mark it EFI_CONVENTIONAL_MEMORY in the memory map. In case there is no mapping for this particular frame in the EFI pagetables, as soon as firmware tries to make use of it, a triple fault occurs and the system reboots (in case of the Yoga 710-11IKB this is very early during bootup). Fix that by always mapping the first page of physical memory into the EFI pagetables. We're free to hand this page to the BIOS, as trim_bios_range() will reserve the first page and isolate it away from memory allocators anyway. Note that just reverting 129766708 alone is not enough on v4.9-rc1+ to fix the regression on affected hardware, as this commit: ab72a27da ("x86/efi: Consolidate region mapping logic") later made the first physical frame not to be mapped anyway. Reported-by: Hanka Pavlikova <hanka@ucw.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Borislav Petkov <bp@suse.de> Cc: Laura Abbott <labbott@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vojtech Pavlik <vojtech@ucw.cz> Cc: Waiman Long <waiman.long@hpe.com> Cc: linux-efi@vger.kernel.org Cc: stable@kernel.org # v4.8+ Fixes: 129766708 ("x86/efi: Only map RAM into EFI page tables if in mixed-mode") Link: http://lkml.kernel.org/r/20170127222552.22336-1-matt@codeblueprint.co.uk [ Tidied up the changelog and the comment. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'security/selinux/Makefile')