From: James Hogan Date: Thu, 29 May 2014 09:16:41 +0000 (+0100) Subject: MIPS: KVM: Fix kvm_debug bit-rottage X-Git-Tag: v5.15~17469^2~11^2~6 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=3d654833713ddb0464cbaee14fe75ef1e4e2ded0;p=platform%2Fkernel%2Flinux-starfive.git MIPS: KVM: Fix kvm_debug bit-rottage Fix build errors when DEBUG is defined in arch/mips/kvm/. - The DEBUG code in kvm_mips_handle_tlbmod() was missing some variables. - The DEBUG code in kvm_mips_host_tlb_write() was conditional on an undefined "debug" variable. - The DEBUG code in kvm_mips_host_tlb_inv() accessed asid_map directly rather than using kvm_mips_get_user_asid(). Also fixed brace placement. Signed-off-by: James Hogan Cc: Paolo Bonzini Cc: Gleb Natapov Cc: kvm@vger.kernel.org Cc: Ralf Baechle Cc: linux-mips@linux-mips.org Cc: Sanjay Lal Signed-off-by: Paolo Bonzini --- diff --git a/arch/mips/kvm/kvm_mips_emul.c b/arch/mips/kvm/kvm_mips_emul.c index 6d25738..c81ab79 100644 --- a/arch/mips/kvm/kvm_mips_emul.c +++ b/arch/mips/kvm/kvm_mips_emul.c @@ -1831,8 +1831,12 @@ kvm_mips_handle_tlbmod(unsigned long cause, uint32_t *opc, struct kvm_run *run, struct kvm_vcpu *vcpu) { enum emulation_result er = EMULATE_DONE; - #ifdef DEBUG + struct mips_coproc *cop0 = vcpu->arch.cop0; + unsigned long entryhi = (vcpu->arch.host_cp0_badvaddr & VPN2_MASK) | + (kvm_read_c0_guest_entryhi(cop0) & ASID_MASK); + int index; + /* * If address not in the guest TLB, then we are in trouble */ diff --git a/arch/mips/kvm/kvm_tlb.c b/arch/mips/kvm/kvm_tlb.c index d65999a..994fc23 100644 --- a/arch/mips/kvm/kvm_tlb.c +++ b/arch/mips/kvm/kvm_tlb.c @@ -233,12 +233,9 @@ kvm_mips_host_tlb_write(struct kvm_vcpu *vcpu, unsigned long entryhi, tlbw_use_hazard(); #ifdef DEBUG - if (debug) { - kvm_debug("@ %#lx idx: %2d [entryhi(R): %#lx] " - "entrylo0(R): 0x%08lx, entrylo1(R): 0x%08lx\n", - vcpu->arch.pc, idx, read_c0_entryhi(), - read_c0_entrylo0(), read_c0_entrylo1()); - } + kvm_debug("@ %#lx idx: %2d [entryhi(R): %#lx] entrylo0(R): 0x%08lx, entrylo1(R): 0x%08lx\n", + vcpu->arch.pc, idx, read_c0_entryhi(), + read_c0_entrylo0(), read_c0_entrylo1()); #endif /* Flush D-cache */ @@ -507,10 +504,9 @@ int kvm_mips_host_tlb_inv(struct kvm_vcpu *vcpu, unsigned long va) local_irq_restore(flags); #ifdef DEBUG - if (idx > 0) { + if (idx > 0) kvm_debug("%s: Invalidated entryhi %#lx @ idx %d\n", __func__, - (va & VPN2_MASK) | (vcpu->arch.asid_map[va & ASID_MASK] & ASID_MASK), idx); - } + (va & VPN2_MASK) | kvm_mips_get_user_asid(vcpu), idx); #endif return 0;