MIPS: Probe guest CP0_UserLocal

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Probe for presence of guest CP0_UserLocal register and expose via
cpu_guest_has_userlocal. This register is optional pre-r6, so this will
allow KVM to only save/restore/expose the guest CP0_UserLocal register
if it exists.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org

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This commit is contained in:

James Hogan 2017-03-14 10:15:10 +00:00

parent f359a11155

commit a7c7ad6c3e

2 changed files with 8 additions and 1 deletions

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3

arch/mips/include/asm/cpu-features.h

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6

arch/mips/kernel/cpu-probe.c

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