Boris Ostrovsky 917248144d x86/kvm: Cache gfn to pfn translation ...

__kvm_map_gfn()'s call to gfn_to_pfn_memslot() is
* relatively expensive
* in certain cases (such as when done from atomic context) cannot be called

Stashing gfn-to-pfn mapping should help with both cases.

This is part of CVE-2019-3016.

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reviewed-by: Joao Martins <joao.m.martins@oracle.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

2020-01-30 18:45:55 +01:00

..

acpi

Merge branches 'acpi-utils', 'acpi-platform', 'acpi-video' and 'acpi-doc'

2019-11-26 10:30:49 +01:00

asm-generic

Merge tag 'powerpc-5.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

2019-12-06 13:36:31 -08:00

clocksource

…

crypto

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drm

Merge tag 'drm-vmwgfx-coherent-2019-11-29' of git://anongit.freedesktop.org/drm/drm

2019-11-30 09:38:11 -08:00

dt-bindings

Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

2019-12-05 12:09:47 -08:00

keys

Merge tag 'powerpc-5.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

2019-11-30 14:35:43 -08:00

kunit

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kvm

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linux

x86/kvm: Cache gfn to pfn translation

2020-01-30 18:45:55 +01:00

math-emu

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media

Merge tag 'drm-next-2019-11-27' of git://anongit.freedesktop.org/drm/drm

2019-11-27 17:45:48 -08:00

misc

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net

net/sched: add delete_empty() to filters and use it in cls_flower

2019-12-30 20:35:19 -08:00

pcmcia

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ras

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rdma

IB/core: Introduce rdma_user_mmap_entry_insert_range() API

2019-12-12 16:55:36 -05:00

scsi

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soc

Merge tag 'drm-next-2019-12-06' of git://anongit.freedesktop.org/drm/drm

2019-12-06 10:28:09 -08:00

sound

Merge tag 'asoc-fix-v5.5-rc2' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

2019-12-17 14:18:32 +01:00

target

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trace

tracing: Change offset type to s32 in preempt/irq tracepoints

2020-01-03 11:34:37 -05:00

uapi

kcov: fix struct layout for kcov_remote_arg

2020-01-04 13:55:09 -08:00

vdso

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video

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xen

xen/interface: re-define FRONT/BACK_RING_ATTACH()

2019-12-20 13:44:42 +01:00