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2ca1a06a54
Linux 3.14 unconditionally reads the RAPL PMU MSRs on boot, without handling General Protection Faults on reading those MSRs. Rather than injecting a #GP, which prevents boot, handle the MSRs by returning 0 for their data. Zero was checked to be safe by code review of the RAPL PMU driver and in discussion with the original driver author (eranian@google.com). Signed-off-by: Venkatesh Srinivas <venkateshs@google.com> Signed-off-by: Jon Cargille <jcargill@google.com> Reviewed-by: Jim Mattson <jmattson@google.com> Message-Id: <20200416184254.248374-1-jcargill@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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.. | ||
boot | ||
configs | ||
crypto | ||
entry | ||
events | ||
hyperv | ||
ia32 | ||
include | ||
kernel | ||
kvm | ||
lib | ||
math-emu | ||
mm | ||
net | ||
oprofile | ||
pci | ||
platform | ||
power | ||
purgatory | ||
ras | ||
realmode | ||
tools | ||
um | ||
video | ||
xen | ||
.gitignore | ||
Kbuild | ||
Kconfig | ||
Kconfig.cpu | ||
Kconfig.debug | ||
Makefile | ||
Makefile_32.cpu | ||
Makefile.um |