Steve's quick list of things that need finishing off: [they are in no particular order and range from the trivial to the long winded] o Proper timeouts on each neighbour (in routing mode) rather than just the 60 second On-Ethernet cache value. o Support for X.25 linklayer o Support for DDCMP link layer o The DDCMP device itself o PPP support (rfc1762) o Lots of testing with real applications o Verify errors etc. against POSIX 1003.1g (draft) o Using send/recvmsg() to get at connect/disconnect data (POSIX 1003.1g) [maybe this should be done at socket level... the control data in the send/recvmsg() calls should simply be a vector of set/getsockopt() calls] o check MSG_CTRUNC is set where it should be. o Find all the commonality between DECnet and IPv4 routing code and extract it into a small library of routines. [probably a project for 2.7.xx] o Add perfect socket hashing - an idea suggested by Paul Koning. Currently we have a half-way house scheme which seems to work reasonably well, but the full scheme is still worth implementing, its not not top of my list right now. o Add session control message flow control o Add NSP message flow control o DECnet sendpages() function o AIO for DECnet ected='selected'>nds-private-remove net-next plumbingsTobias Klauser
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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 /tools/perf/pmu-events/jevents.c
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 'tools/perf/pmu-events/jevents.c')