Revision 2e604c0f19dcdd433b3863ffc3da9bc0787ca765 authored by Josh Boyer on 07 March 2013, 04:23:30 UTC, committed by H. Peter Anvin on 07 March 2013, 04:23:30 UTC
When boot_params->sentinel is set, all we really know is that some
undefined set of fields in struct boot_params contain garbage.  In the
particular case of efi_info, however, there is a private magic for
that substructure, so it is generally safe to leave it even if the
bootloader is broken.

kexec (for which we did the initial analysis) did not initialize this
field, but of course all the EFI bootloaders do, and most EFI
bootloaders are broken in this respect (and should be fixed.)

Reported-by: Robin Holt <holt@sgi.com>
Link: http://lkml.kernel.org/r/CA%2B5PVA51-FT14p4CRYKbicykugVb=PiaEycdQ57CK2km_OQuRQ@mail.gmail.com
Tested-by: Josh Boyer <jwboyer@gmail.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
1 parent 98e7a98
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ABI
DocBook
EDID
PCI
RCU
accounting
acpi
aoe
arm
arm64
auxdisplay
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blackfin
block
blockdev
bus-devices
cdrom
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connector
console
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00-INDEX -rw-r--r-- 16.5 KB
BUG-HUNTING -rw-r--r-- 8.1 KB
Changes -rw-r--r-- 11.7 KB
CodingStyle -rw-r--r-- 30.7 KB
DMA-API-HOWTO.txt -rw-r--r-- 31.3 KB
DMA-API.txt -rw-r--r-- 27.3 KB
DMA-ISA-LPC.txt -rw-r--r-- 5.2 KB
DMA-attributes.txt -rw-r--r-- 4.5 KB
HOWTO -rw-r--r-- 27.2 KB
IPMI.txt -rw-r--r-- 26.1 KB
IRQ-affinity.txt -rw-r--r-- 2.5 KB
IRQ-domain.txt -rw-r--r-- 6.9 KB
IRQ.txt -rw-r--r-- 962 bytes
Intel-IOMMU.txt -rw-r--r-- 3.8 KB
Makefile -rw-r--r-- 174 bytes
ManagementStyle -rw-r--r-- 12.9 KB
SAK.txt -rw-r--r-- 2.8 KB
SM501.txt -rw-r--r-- 2.8 KB
SecurityBugs -rw-r--r-- 1.8 KB
SubmitChecklist -rw-r--r-- 4.4 KB
SubmittingDrivers -rw-r--r-- 6.3 KB
SubmittingPatches -rw-r--r-- 28.6 KB
VGA-softcursor.txt -rw-r--r-- 2.0 KB
applying-patches.txt -rw-r--r-- 19.5 KB
atomic_ops.txt -rw-r--r-- 21.7 KB
bad_memory.txt -rw-r--r-- 1.1 KB
basic_profiling.txt -rw-r--r-- 1.7 KB
binfmt_misc.txt -rw-r--r-- 5.9 KB
braille-console.txt -rw-r--r-- 1.4 KB
bt8xxgpio.txt -rw-r--r-- 4.3 KB
btmrvl.txt -rw-r--r-- 2.9 KB
bus-virt-phys-mapping.txt -rw-r--r-- 7.9 KB
cachetlb.txt -rw-r--r-- 17.1 KB
circular-buffers.txt -rw-r--r-- 7.6 KB
clk.txt -rw-r--r-- 8.5 KB
coccinelle.txt -rw-r--r-- 8.2 KB
cpu-hotplug.txt -rw-r--r-- 15.6 KB
cpu-load.txt -rw-r--r-- 3.0 KB
cputopology.txt -rw-r--r-- 3.8 KB
crc32.txt -rw-r--r-- 8.5 KB
dcdbas.txt -rw-r--r-- 3.6 KB
debugging-modules.txt -rw-r--r-- 954 bytes
debugging-via-ohci1394.txt -rw-r--r-- 7.4 KB
dell_rbu.txt -rw-r--r-- 4.9 KB
devices.txt -rw-r--r-- 115.9 KB
digsig.txt -rw-r--r-- 2.8 KB
dma-buf-sharing.txt -rw-r--r-- 19.8 KB
dmaengine.txt -rw-r--r-- 7.6 KB
dontdiff -rw-r--r-- 2.5 KB
dynamic-debug-howto.txt -rw-r--r-- 12.3 KB
edac.txt -rw-r--r-- 24.3 KB
eisa.txt -rw-r--r-- 7.1 KB
email-clients.txt -rw-r--r-- 8.6 KB
flexible-arrays.txt -rw-r--r-- 5.5 KB
futex-requeue-pi.txt -rw-r--r-- 5.0 KB
gcov.txt -rw-r--r-- 7.5 KB
gpio.txt -rw-r--r-- 34.1 KB
highuid.txt -rw-r--r-- 2.4 KB
hw_random.txt -rw-r--r-- 3.5 KB
hwspinlock.txt -rw-r--r-- 12.1 KB
init.txt -rw-r--r-- 2.5 KB
initrd.txt -rw-r--r-- 14.1 KB
intel_txt.txt -rw-r--r-- 10.2 KB
io-mapping.txt -rw-r--r-- 3.2 KB
io_ordering.txt -rw-r--r-- 1.9 KB
iostats.txt -rw-r--r-- 7.9 KB
irqflags-tracing.txt -rw-r--r-- 2.6 KB
isapnp.txt -rw-r--r-- 433 bytes
java.txt -rw-r--r-- 10.7 KB
kernel-doc-nano-HOWTO.txt -rw-r--r-- 11.6 KB
kernel-docs.txt -rw-r--r-- 33.1 KB
kernel-parameters.txt -rw-r--r-- 111.6 KB
kmemcheck.txt -rw-r--r-- 29.8 KB
kmemleak.txt -rw-r--r-- 7.9 KB
kobject.txt -rw-r--r-- 17.8 KB
kprobes.txt -rw-r--r-- 29.5 KB
kref.txt -rw-r--r-- 8.4 KB
ldm.txt -rw-r--r-- 3.8 KB
local_ops.txt -rw-r--r-- 6.1 KB
lockdep-design.txt -rw-r--r-- 11.6 KB
lockstat.txt -rw-r--r-- 10.7 KB
lockup-watchdogs.txt -rw-r--r-- 3.1 KB
logo.gif -rw-r--r-- 16.0 KB
logo.txt -rw-r--r-- 563 bytes
magic-number.txt -rw-r--r-- 9.7 KB
md.txt -rw-r--r-- 25.4 KB
media-framework.txt -rw-r--r-- 14.7 KB
memory-barriers.txt -rw-r--r-- 82.4 KB
memory-hotplug.txt -rw-r--r-- 15.9 KB
mono.txt -rw-r--r-- 2.5 KB
mutex-design.txt -rw-r--r-- 5.8 KB
nommu-mmap.txt -rw-r--r-- 12.7 KB
numastat.txt -rw-r--r-- 836 bytes
oops-tracing.txt -rw-r--r-- 12.5 KB
padata.txt -rw-r--r-- 7.3 KB
parport-lowlevel.txt -rw-r--r-- 32.2 KB
parport.txt -rw-r--r-- 8.8 KB
percpu-rw-semaphore.txt -rw-r--r-- 1.1 KB
pi-futex.txt -rw-r--r-- 5.7 KB
pinctrl.txt -rw-r--r-- 41.0 KB
pnp.txt -rw-r--r-- 6.8 KB
preempt-locking.txt -rw-r--r-- 5.2 KB
printk-formats.txt -rw-r--r-- 5.6 KB
pwm.txt -rw-r--r-- 2.9 KB
ramoops.txt -rw-r--r-- 4.6 KB
rbtree.txt -rw-r--r-- 13.3 KB
remoteproc.txt -rw-r--r-- 12.3 KB
rfkill.txt -rw-r--r-- 4.7 KB
robust-futex-ABI.txt -rw-r--r-- 8.7 KB
robust-futexes.txt -rw-r--r-- 9.4 KB
rpmsg.txt -rw-r--r-- 13.5 KB
rt-mutex-design.txt -rw-r--r-- 32.8 KB
rt-mutex.txt -rw-r--r-- 3.5 KB
rtc.txt -rw-r--r-- 15.5 KB
serial-console.txt -rw-r--r-- 4.0 KB
sgi-ioc4.txt -rw-r--r-- 2.0 KB
sgi-visws.txt -rw-r--r-- 678 bytes
smsc_ece1099.txt -rw-r--r-- 2.4 KB
sparse.txt -rw-r--r-- 3.8 KB
spinlocks.txt -rw-r--r-- 6.5 KB
stable_api_nonsense.txt -rw-r--r-- 9.2 KB
stable_kernel_rules.txt -rw-r--r-- 4.4 KB
static-keys.txt -rw-r--r-- 11.9 KB
svga.txt -rw-r--r-- 14.1 KB
sysfs-rules.txt -rw-r--r-- 8.1 KB
sysrq.txt -rw-r--r-- 11.6 KB
unaligned-memory-access.txt -rw-r--r-- 10.0 KB
unicode.txt -rw-r--r-- 6.5 KB
unshare.txt -rw-r--r-- 13.1 KB
vfio.txt -rw-r--r-- 13.6 KB
vgaarbiter.txt -rw-r--r-- 8.1 KB
video-output.txt -rw-r--r-- 1.1 KB
vme_api.txt -rw-r--r-- 13.1 KB
volatile-considered-harmful.txt -rw-r--r-- 5.6 KB
workqueue.txt -rw-r--r-- 14.9 KB
xz.txt -rw-r--r-- 5.7 KB
zorro.txt -rw-r--r-- 2.8 KB

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