linux-sg2042/arch/alpha/kernel
Michael Cree 6fd16ce559 alpha: Implement CPU vulnerabilities sysfs functions.
Implement the CPU vulnerabilty show functions for meltdown, spectre_v1
and spectre_v2 on Alpha.

Tests on XP1000 (EV67/667MHz) and ES45 (EV68CB/1.25GHz) show them
to be vulnerable to Meltdown and Spectre V1.  In the case of
Meltdown I saw a 1 to 2% success rate in reading bytes on the
XP1000 and 50 to 60% success rate on the ES45. (This compares to
99.97% success reported for Intel CPUs.)  Report EV6 and later
CPUs as vulnerable.

Tests on PWS600au (EV56/600MHz) for Spectre V1 attack were
unsuccessful (though I did not try particularly hard) so mark EV4
through to EV56 as not vulnerable.

Signed-off-by: Michael Cree <mcree@orcon.net.nz>
Signed-off-by: Matt Turner <mattst88@gmail.com>
2018-04-07 15:04:04 -07:00
..
.gitignore
Makefile alpha: Implement CPU vulnerabilities sysfs functions. 2018-04-07 15:04:04 -07:00
asm-offsets.c
audit.c
binfmt_loader.c
bugs.c alpha: Implement CPU vulnerabilities sysfs functions. 2018-04-07 15:04:04 -07:00
console.c
core_apecs.c
core_cia.c
core_irongate.c
core_lca.c
core_marvel.c
core_mcpcia.c
core_polaris.c
core_t2.c
core_titan.c
core_tsunami.c
core_wildfire.c
entry.S
err_common.c
err_ev6.c
err_ev7.c
err_impl.h
err_marvel.c
err_titan.c
es1888.c
gct.c
head.S
io.c
irq.c
irq_alpha.c
irq_i8259.c
irq_impl.h
irq_pyxis.c
irq_srm.c
machvec_impl.h
module.c
osf_sys.c
pc873xx.c
pc873xx.h
pci-noop.c
pci-sysfs.c
pci.c
pci_impl.h
pci_iommu.c
perf_event.c
process.c
proto.h
ptrace.c
rtc.c
setup.c
signal.c
smc37c93x.c
smc37c669.c
smp.c
srm_env.c
srmcons.c
sys_alcor.c
sys_cabriolet.c
sys_dp264.c
sys_eb64p.c
sys_eiger.c
sys_jensen.c
sys_marvel.c
sys_miata.c
sys_mikasa.c
sys_nautilus.c
sys_noritake.c
sys_rawhide.c
sys_ruffian.c
sys_rx164.c
sys_sable.c
sys_sio.c
sys_sx164.c
sys_takara.c
sys_titan.c
sys_wildfire.c
systbls.S
time.c
traps.c
vmlinux.lds.S