Commit 025014e3 authored by James Hogan's avatar James Hogan Committed by Paolo Bonzini

MIPS: KVM: Drop redundant restore of DDATA_LO

On return from the exit handler to the host (without re-entering the
guest) we restore the saved value of the DDATA_LO register which we use
as a scratch register. However we've already restored it ready for
calling the exit handler so there is no need to do it again, so drop
that code.
Signed-off-by: default avatarJames Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim KrÄmáŠ<rkrcmar@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 38ea7a71
...@@ -581,10 +581,6 @@ static void *kvm_mips_build_ret_to_host(void *addr) ...@@ -581,10 +581,6 @@ static void *kvm_mips_build_ret_to_host(void *addr)
UASM_i_LW(&p, K1, offsetof(struct kvm_vcpu_arch, host_stack), K1); UASM_i_LW(&p, K1, offsetof(struct kvm_vcpu_arch, host_stack), K1);
uasm_i_addiu(&p, K1, K1, -(int)sizeof(struct pt_regs)); uasm_i_addiu(&p, K1, K1, -(int)sizeof(struct pt_regs));
/* Restore host DDATA_LO */
UASM_i_LW(&p, K0, offsetof(struct pt_regs, cp0_epc), K1);
uasm_i_mtc0(&p, K0, C0_DDATA_LO);
/* /*
* r2/v0 is the return code, shift it down by 2 (arithmetic) * r2/v0 is the return code, shift it down by 2 (arithmetic)
* to recover the err code * to recover the err code
......
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