KVM: MIPS/T&E: Default to reset vector
authorJames Hogan <james.hogan@imgtec.com>
Wed, 18 Jan 2017 16:20:31 +0000 (16:20 +0000)
committerJames Hogan <james.hogan@imgtec.com>
Fri, 3 Feb 2017 15:21:31 +0000 (15:21 +0000)
commitbe67a0be94b65746dee63af5c184c78d00a707f6
treef841a98be1a4a312fabe21e9cd49c6fb7a2fc3ad
parent7801bbe1bd907a8f8b136fc184583260508febb6
KVM: MIPS/T&E: Default to reset vector

Set the default VCPU state closer to the architectural reset state, with
PC pointing at the reset vector (uncached PA 0x1fc00000, which for KVM
T&E is VA 0x5fc00000), and with CP0_Status.BEV and CP0_Status.ERL to 1.

Although QEMU at least will overwrite this state, it makes sense to do
this now that CP0_EBase is properly implemented to check BEV, and now
that we support a sparse GPA layout potentially with a boot ROM at GPA
0x1fc00000.

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
arch/mips/kvm/trap_emul.c