Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756256AbYLHLpB (ORCPT ); Mon, 8 Dec 2008 06:45:01 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753689AbYLHLiG (ORCPT ); Mon, 8 Dec 2008 06:38:06 -0500 Received: from mx2.redhat.com ([66.187.237.31]:48279 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753349AbYLHLhG (ORCPT ); Mon, 8 Dec 2008 06:37:06 -0500 From: Avi Kivity To: kvm@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Hollis Blanchard Subject: [PATCH 44/45] KVM: ppc: Move the last bits of 44x code out of booke.c Date: Mon, 8 Dec 2008 13:36:55 +0200 Message-Id: <1228736216-15787-45-git-send-email-avi@redhat.com> In-Reply-To: <1228736216-15787-1-git-send-email-avi@redhat.com> References: <1228736216-15787-1-git-send-email-avi@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 5317 Lines: 170 From: Hollis Blanchard Needed to port to other Book E processors. Signed-off-by: Hollis Blanchard Signed-off-by: Avi Kivity --- arch/powerpc/include/asm/kvm_ppc.h | 3 ++ arch/powerpc/kvm/44x.c | 53 ++++++++++++++++++++++++++++++++++++ arch/powerpc/kvm/booke.c | 46 +----------------------------- 3 files changed, 58 insertions(+), 44 deletions(-) diff --git a/arch/powerpc/include/asm/kvm_ppc.h b/arch/powerpc/include/asm/kvm_ppc.h index aecf95d..d593325 100644 --- a/arch/powerpc/include/asm/kvm_ppc.h +++ b/arch/powerpc/include/asm/kvm_ppc.h @@ -62,7 +62,10 @@ extern void kvmppc_mmu_switch_pid(struct kvm_vcpu *vcpu, u32 pid); /* Core-specific hooks */ +extern int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu); extern int kvmppc_core_check_processor_compat(void); +extern int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu, + struct kvm_translation *tr); extern void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu); extern void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu); diff --git a/arch/powerpc/kvm/44x.c b/arch/powerpc/kvm/44x.c index fcf8c7d..f5d7028 100644 --- a/arch/powerpc/kvm/44x.c +++ b/arch/powerpc/kvm/44x.c @@ -121,3 +121,56 @@ int kvmppc_core_check_processor_compat(void) return r; } + +int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu) +{ + struct kvmppc_44x_tlbe *tlbe = &vcpu->arch.guest_tlb[0]; + + tlbe->tid = 0; + tlbe->word0 = PPC44x_TLB_16M | PPC44x_TLB_VALID; + tlbe->word1 = 0; + tlbe->word2 = PPC44x_TLB_SX | PPC44x_TLB_SW | PPC44x_TLB_SR; + + tlbe++; + tlbe->tid = 0; + tlbe->word0 = 0xef600000 | PPC44x_TLB_4K | PPC44x_TLB_VALID; + tlbe->word1 = 0xef600000; + tlbe->word2 = PPC44x_TLB_SX | PPC44x_TLB_SW | PPC44x_TLB_SR + | PPC44x_TLB_I | PPC44x_TLB_G; + + /* Since the guest can directly access the timebase, it must know the + * real timebase frequency. Accordingly, it must see the state of + * CCR1[TCS]. */ + vcpu->arch.ccr1 = mfspr(SPRN_CCR1); + + return 0; +} + +/* 'linear_address' is actually an encoding of AS|PID|EADDR . */ +int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu, + struct kvm_translation *tr) +{ + struct kvmppc_44x_tlbe *gtlbe; + int index; + gva_t eaddr; + u8 pid; + u8 as; + + eaddr = tr->linear_address; + pid = (tr->linear_address >> 32) & 0xff; + as = (tr->linear_address >> 40) & 0x1; + + index = kvmppc_44x_tlb_index(vcpu, eaddr, pid, as); + if (index == -1) { + tr->valid = 0; + return 0; + } + + gtlbe = &vcpu->arch.guest_tlb[index]; + + tr->physical_address = tlb_xlate(gtlbe, eaddr); + /* XXX what does "writeable" and "usermode" even mean? */ + tr->valid = 1; + + return 0; +} diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c index ea63009..c619d1b 100644 --- a/arch/powerpc/kvm/booke.c +++ b/arch/powerpc/kvm/booke.c @@ -479,20 +479,6 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu, /* Initial guest state: 16MB mapping 0 -> 0, PC = 0, MSR = 0, R1 = 16MB */ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu) { - struct kvmppc_44x_tlbe *tlbe = &vcpu->arch.guest_tlb[0]; - - tlbe->tid = 0; - tlbe->word0 = PPC44x_TLB_16M | PPC44x_TLB_VALID; - tlbe->word1 = 0; - tlbe->word2 = PPC44x_TLB_SX | PPC44x_TLB_SW | PPC44x_TLB_SR; - - tlbe++; - tlbe->tid = 0; - tlbe->word0 = 0xef600000 | PPC44x_TLB_4K | PPC44x_TLB_VALID; - tlbe->word1 = 0xef600000; - tlbe->word2 = PPC44x_TLB_SX | PPC44x_TLB_SW | PPC44x_TLB_SR - | PPC44x_TLB_I | PPC44x_TLB_G; - vcpu->arch.pc = 0; vcpu->arch.msr = 0; vcpu->arch.gpr[1] = (16<<20) - 8; /* -8 for the callee-save LR slot */ @@ -503,12 +489,7 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu) * before it's programmed its own IVPR. */ vcpu->arch.ivpr = 0x55550000; - /* Since the guest can directly access the timebase, it must know the - * real timebase frequency. Accordingly, it must see the state of - * CCR1[TCS]. */ - vcpu->arch.ccr1 = mfspr(SPRN_CCR1); - - return 0; + return kvmppc_core_vcpu_setup(vcpu); } int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) @@ -586,33 +567,10 @@ int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu) return -ENOTSUPP; } -/* 'linear_address' is actually an encoding of AS|PID|EADDR . */ int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu, struct kvm_translation *tr) { - struct kvmppc_44x_tlbe *gtlbe; - int index; - gva_t eaddr; - u8 pid; - u8 as; - - eaddr = tr->linear_address; - pid = (tr->linear_address >> 32) & 0xff; - as = (tr->linear_address >> 40) & 0x1; - - index = kvmppc_44x_tlb_index(vcpu, eaddr, pid, as); - if (index == -1) { - tr->valid = 0; - return 0; - } - - gtlbe = &vcpu->arch.guest_tlb[index]; - - tr->physical_address = tlb_xlate(gtlbe, eaddr); - /* XXX what does "writeable" and "usermode" even mean? */ - tr->valid = 1; - - return 0; + return kvmppc_core_vcpu_translate(vcpu, tr); } static int kvmppc_booke_init(void) -- 1.6.0.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/