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| author | James Hogan <james.hogan@imgtec.com> | 2015-03-13 16:54:08 +0100 |
|---|---|---|
| committer | James Hogan <james.hogan@imgtec.com> | 2017-02-03 16:20:43 +0100 |
| commit | 1534b3964901ff55465a9f582838204193354966 (patch) | |
| tree | de8331f46b6b68bdd0f66a9957b6fa894bbd4c75 /arch/mips/include | |
| parent | KVM: MIPS: Drop partial KVM_NMI implementation (diff) | |
| download | linux-1534b3964901ff55465a9f582838204193354966.tar.xz linux-1534b3964901ff55465a9f582838204193354966.zip | |
KVM: MIPS/MMU: Simplify ASID restoration
KVM T&E uses an ASID for guest kernel mode and an ASID for guest user
mode. The current ASID is saved when the guest is scheduled out, and
restored when scheduling back in, with checks for whether the ASID needs
to be regenerated.
This isn't really necessary as the ASID can be easily determined by the
current guest mode, so lets simplify it to just read the required ASID
from guest_kernel_asid or guest_user_asid even if the ASID hasn't been
regenerated.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Diffstat (limited to 'arch/mips/include')
| -rw-r--r-- | arch/mips/include/asm/kvm_host.h | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/mips/include/asm/kvm_host.h b/arch/mips/include/asm/kvm_host.h index bebec370324f..7cc53e44b42e 100644 --- a/arch/mips/include/asm/kvm_host.h +++ b/arch/mips/include/asm/kvm_host.h @@ -318,9 +318,6 @@ struct kvm_vcpu_arch { /* Bitmask of pending exceptions to be cleared */ unsigned long pending_exceptions_clr; - /* Save/Restore the entryhi register when are are preempted/scheduled back in */ - unsigned long preempt_entryhi; - /* S/W Based TLB for guest */ struct kvm_mips_tlb guest_tlb[KVM_MIPS_GUEST_TLB_SIZE]; |