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authorJames Hogan <james.hogan@imgtec.com>2016-06-23 17:34:43 +0100
committerPaolo Bonzini <pbonzini@redhat.com>2016-07-05 16:08:51 +0200
commit38ea7a715d43752e1c53d5a0c3cbab5e321f22f7 (patch)
tree618dd624c887e5c9a24c0fd3b5ec07832418c7df /usr
parentd37f4038d16273087bdc60387807b90a8c06da7f (diff)
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MIPS: KVM: Check MSA presence at uasm time
Check for presence of MSA at uasm assembly time rather than at runtime in the generated KVM host entry code. This optimises the guest exit path by eliminating the MSA code entirely if not present, and eliminating the read of Config3.MSAP and conditional branch if MSA is present. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Radim KrÄmář <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>
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