diff options
author | James Hogan <james.hogan@imgtec.com> | 2016-11-28 23:45:04 +0100 |
---|---|---|
committer | James Hogan <james.hogan@imgtec.com> | 2017-02-03 16:21:08 +0100 |
commit | 4841e0dd4f53c127b11947bdbe4423b5e9014ebc (patch) | |
tree | 20404edba5267e5071f79ec98815430c6cd666a5 /arch/mips/kvm/trap_emul.c | |
parent | KVM: MIPS/MMU: Convert guest physical map to page table (diff) | |
download | linux-4841e0dd4f53c127b11947bdbe4423b5e9014ebc.tar.xz linux-4841e0dd4f53c127b11947bdbe4423b5e9014ebc.zip |
KVM: MIPS: Update vcpu->mode and vcpu->cpu
Keep the vcpu->mode and vcpu->cpu variables up to date so that
kvm_make_all_cpus_request() has a chance of functioning correctly. This
will soon need to be used for kvm_flush_remote_tlbs().
We can easily update vcpu->cpu when the VCPU context is loaded or saved,
which will happen when accessing guest context and when the guest is
scheduled in and out.
We need to be a little careful with vcpu->mode though, as we will in
future be checking for outstanding VCPU requests, and this must be done
after the value of IN_GUEST_MODE in vcpu->mode is visible to other CPUs.
Otherwise the other CPU could fail to trigger an IPI to wait for
completion dispite the VCPU request not being seen.
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/kvm/trap_emul.c')
0 files changed, 0 insertions, 0 deletions