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alistair23-linux/arch/x86
Boris Ostrovsky f7c1a6c67f x86/kvm: Cache gfn to pfn translation
commit 917248144d upstream.

__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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-11 04:35:40 -08:00
..
boot x86/efistub: Disable paging at mixed mode entry 2020-01-23 08:22:37 +01:00
configs x86/defconfigs: Remove useless UEVENT_HELPER_PATH 2019-06-21 19:22:08 +02:00
crypto crypto: x86/aes-ni - use AES library instead of single-use AES cipher 2019-09-09 23:48:41 +10:00
entry syscalls/x86: Use the correct function type for sys_ni_syscall 2020-01-17 19:48:31 +01:00
events perf/x86/intel/uncore: Remove PCIe3 unit for SNR 2020-02-05 21:22:47 +00:00
hyperv x86/hyperv: Make vapic support x2apic mode 2019-10-15 10:57:09 +02:00
ia32 syscalls/x86: Use COMPAT_SYSCALL_DEFINE0 for IA32 (rt_)sigreturn 2020-01-17 19:48:30 +01:00
include x86/kvm: Cache gfn to pfn translation 2020-02-11 04:35:40 -08:00
kernel x86/cpu: Update cached HLE state on write to TSX_CTRL_CPUID_CLEAR 2020-02-11 04:35:15 -08:00
kvm x86/kvm: Cache gfn to pfn translation 2020-02-11 04:35:40 -08:00
lib x86/insn: Add some Intel instructions to the opcode map 2019-12-31 16:45:40 +01:00
math-emu x86/math-emu: Check __copy_from_user() result 2019-12-31 16:43:32 +01:00
mm mm/memory_hotplug: shrink zones when offlining memory 2020-01-09 10:19:56 +01:00
net bpf: fix x64 JIT code generation for jmp to 1st insn 2019-08-01 13:12:09 -07:00
oprofile
pci x86/PCI: Avoid AMD FCH XHCI USB PME# from D0 defect 2019-12-13 08:42:46 +01:00
platform x86/efi: Update e820 with reserved EFI boot services data to fix kexec breakage 2020-01-12 12:21:15 +01:00
power Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-09-17 12:04:39 -07:00
purgatory Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-09-28 13:37:41 -07:00
ras RAS/CEC: Add CONFIG_RAS_CEC_DEBUG and move CEC debug features there 2019-06-08 17:39:24 +02:00
realmode x86/realmode: Remove trampoline_status 2019-07-22 11:30:18 +02:00
tools x86/insn: Fix awk regexp warnings 2019-11-29 10:09:45 +01:00
um um: Implement copy_thread_tls 2020-01-14 20:08:35 +01:00
video treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
xen x86/xen/32: Simplify ring check in xen_iret_crit_fixup() 2019-11-29 10:09:50 +01:00
.gitignore
Kbuild treewide: Add SPDX license identifier - Kbuild 2019-05-30 11:32:33 -07:00
Kconfig x86/tsx: Add config options to set tsx=on|off|auto 2019-10-28 09:12:18 +01:00
Kconfig.cpu x86/cpu: Create Zhaoxin processors architecture support file 2019-06-22 11:45:57 +02:00
Kconfig.debug x86, perf: Fix the dependency of the x86 insn decoder selftest 2019-09-02 20:05:58 +02:00
Makefile x86/build: Add -Wnoaddress-of-packed-member to REALMODE_CFLAGS, to silence GCC9 build warning 2019-08-28 17:31:31 +02:00
Makefile.um
Makefile_32.cpu