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author | James Hogan <james.hogan@imgtec.com> | 2016-07-08 11:53:25 +0100 |
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committer | Paolo Bonzini <pbonzini@redhat.com> | 2016-08-01 18:42:24 +0200 |
commit | 0d17aea5c27d7d748b1d8116d275b2b17dc5cad6 (patch) | |
tree | 39616859bb440c62c4421ff3ad4e56532492ec89 /arch/alpha | |
parent | MIPS: KVM: Set CP0_Status.KX on MIPS64 (diff) | |
download | linux-dev-0d17aea5c27d7d748b1d8116d275b2b17dc5cad6.tar.xz linux-dev-0d17aea5c27d7d748b1d8116d275b2b17dc5cad6.zip |
MIPS: KVM: Use 64-bit CP0_EBase when appropriate
Update the KVM entry point to write CP0_EBase as a 64-bit register when
it is 64-bits wide, and to set the WG (write gate) bit if it exists in
order to write bits 63:30 (or 31:30 on MIPS32).
Prior to MIPS64r6 it was UNDEFINED to perform a 64-bit read or write of
a 32-bit COP0 register. Since this is dynamically generated code,
generate the right type of access depending on whether the kernel is
64-bit and cpu_has_ebase_wg.
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
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/alpha')
0 files changed, 0 insertions, 0 deletions