linux_dsm_epyc7002/arch/x86
Venkatesh Srinivas 2ca1a06a54 kvm: Handle reads of SandyBridge RAPL PMU MSRs rather than injecting #GP
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>
2020-04-17 11:06:33 -04:00
..
boot Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2020-04-01 14:52:59 -07:00
configs x86/configs: Slightly reduce defconfigs 2020-03-19 18:48:52 +01:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2020-04-01 14:47:40 -07:00
entry Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2020-03-31 11:04:05 -07:00
events Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2020-03-31 11:04:05 -07:00
hyperv
ia32 Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2020-03-31 11:04:05 -07:00
include KVM: SVM: move more vmentry code to assembly 2020-04-14 04:21:21 -04:00
kernel Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity 2020-04-02 14:49:46 -07:00
kvm kvm: Handle reads of SandyBridge RAPL PMU MSRs rather than injecting #GP 2020-04-17 11:06:33 -04:00
lib x86/insn: Add Control-flow Enforcement (CET) instructions to the opcode map 2020-03-26 12:21:40 +01:00
math-emu
mm mm: allow VM_FAULT_RETRY for multiple times 2020-04-02 09:35:30 -07:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-03-25 18:58:11 -07:00
oprofile
pci
platform Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2020-03-30 16:40:08 -07:00
power x86/kernel: Convert to new CPU match macros 2020-03-24 21:28:26 +01:00
purgatory
ras
realmode x86/vmlinux: Drop unneeded linker script discard of .eh_frame 2020-02-25 14:51:29 +01:00
tools
um Kbuild updates for v5.7 2020-03-31 16:03:39 -07:00
video
xen timekeeping and timer updates: 2020-03-30 18:51:47 -07:00
.gitignore
Kbuild
Kconfig Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity 2020-04-02 14:49:46 -07:00
Kconfig.cpu
Kconfig.debug
Makefile crypto: x86/curve25519 - support assemblers with no adx support 2020-03-05 18:28:09 +11:00
Makefile_32.cpu
Makefile.um