Remove useless declaration, eliminating a MISRA C:2012 Rule 8.6
violation: The routine itself was removed by following commit long time
ago:
222013114 x86: Fix RevF detection in powernow.c
No functional change.
Signed-off-by: Sergiy Kibrik <Sergiy_Kibrik@epam.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Separate Intel/AMD-specific MCE code using CONFIG_{INTEL,AMD} config options.
Now we can avoid build of mcheck code if support for specific platform is
intentionally disabled by configuration.
Also global variables lmce_support & cmci_support from Intel-specific
mce_intel.c have to moved to common mce.c, as they get checked in common code.
Signed-off-by: Sergiy Kibrik <Sergiy_Kibrik@epam.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Acked-by: Jan Beulich <jbeulich@suse.com>
The default switch case block is wanted here, to handle situation
e.g. of unexpected c->x86_vendor value -- then no mcheck init is done, but
misleading message still gets logged anyway.
Signed-off-by: Sergiy Kibrik <Sergiy_Kibrik@epam.com>
Acked-by: Jan Beulich <jbeulich@suse.com>
Moving this function out of mce_intel.c will make it possible to disable
build of Intel MCE code later on, because the function gets called from
common x86 code.
Also replace boilerplate code that checks for MCG_LMCE_P flag with
vmce_has_lmce(), which might contribute to readability a bit.
Signed-off-by: Sergiy Kibrik <Sergiy_Kibrik@epam.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Acked-by: Jan Beulich <jbeulich@suse.com>
Move altp2m code from generic p2m.c file to altp2m.c, so it is kept separately
and can possibly be disabled in the build. We may want to disable it when
building for specific platform only, that doesn't support alternate p2m.
No functional change intended.
Signed-off-by: Sergiy Kibrik <Sergiy_Kibrik@epam.com>
Acked-by: Jan Beulich <jbeulich@suse.com>
Guard calls to CPU-specific mcheck init routines in common MCE code
using new INTEL/AMD config options.
The purpose is not to build platform-specific mcheck code and calls to it,
if this platform is disabled in config.
Signed-off-by: Sergiy Kibrik <Sergiy_Kibrik@epam.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Acked-by: Jan Beulich <jbeulich@suse.com>
Add build-time checks for newly introduced INTEL/AMD config options when
calling vmce_{intel/amd}_{rdmsr/wrmsr}() routines.
This way a platform-specific code can be omitted in vmce code, if this
platform is disabled in config.
Signed-off-by: Sergiy Kibrik <Sergiy_Kibrik@epam.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Acked-by: Jan Beulich <jbeulich@suse.com>
Build AMD vPMU when CONFIG_AMD is on, and Intel vPMU when CONFIG_INTEL
is on respectively, allowing for a plaftorm-specific build.
No functional change intended.
Signed-off-by: Sergiy Kibrik <Sergiy_Kibrik@epam.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Acked-by: Jan Beulich <jbeulich@suse.com>
Add check for CONFIG_INTEL build option to conditional call of this routine,
so that if Intel support is disabled the call would be eliminated.
No functional change intended.
Signed-off-by: Sergiy Kibrik <Sergiy_Kibrik@epam.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Acked-by: Jan Beulich <jbeulich@suse.com>
Separate Intel nonfatal MCE initialization code from generic MCE code, the same
way it is done for AMD code. This is to be able to later make intel/amd MCE
code optional in the build.
Convert to Xen coding style. Clean up unused includes. Remove seemingly
outdated comment about MCE check period.
No functional change intended.
Signed-off-by: Sergiy Kibrik <Sergiy_Kibrik@epam.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Pass 128 bytes of random seed via FDT, so that guests' CRNGs are better seeded
early at boot. This is larger than ChaCha20 key size of 32, so each byte of
CRNG state will be mixed 4 times using this seed. There does not seem to be
advantage in larger seed though.
Depending on its configuration Linux can use the seed as device randomness
or to just quickly initialize CRNG.
In either case this will provide extra randomness to further harden CRNG.
Signed-off-by: Sergiy Kibrik <Sergiy_Kibrik@epam.com>
Reviewed-by: Julien Grall <julien@xen.org>
Reviewed-by: Michal Orzel <michal.orzel@arm.com>
Sergiy Kibrik