/* * Copyright (c) 2016 Tom Haynes */ #ifndef _NFSD_FLEXFILELAYOUTXDR_H #define _NFSD_FLEXFILELAYOUTXDR_H 1 #include #include "xdr4.h" #define FF_FLAGS_NO_LAYOUTCOMMIT 1 #define FF_FLAGS_NO_IO_THRU_MDS 2 #define FF_FLAGS_NO_READ_IO 4 struct xdr_stream; #define FF_NETID_LEN (4) #define FF_ADDR_LEN (INET6_ADDRSTRLEN + 8) struct pnfs_ff_netaddr { char netid[FF_NETID_LEN + 1]; char addr[FF_ADDR_LEN + 1]; u32 netid_len; u32 addr_len; }; struct pnfs_ff_device_addr { struct pnfs_ff_netaddr netaddr; u32 version; u32 minor_version; u32 rsize; u32 wsize; bool tightly_coupled; }; struct pnfs_ff_layout { u32 flags; u32 stats_collect_hint; kuid_t uid; kgid_t gid; struct nfsd4_deviceid deviceid; stateid_t stateid; struct nfs_fh fh; }; __be32 nfsd4_ff_encode_getdeviceinfo(struct xdr_stream *xdr, struct nfsd4_getdeviceinfo *gdp); __be32 nfsd4_ff_encode_layoutget(struct xdr_stream *xdr, struct nfsd4_layoutget *lgp); #endif /* _NFSD_FLEXFILELAYOUTXDR_H */ p'>emaclite-cleanup 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 /drivers/usb/host/max3421-hcd.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 'drivers/usb/host/max3421-hcd.c')