From patchwork Fri Jan 15 13:49:10 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Graf X-Patchwork-Id: 73177 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter.kernel.org (8.14.3/8.14.2) with ESMTP id o0FDnQn0018186 for ; Fri, 15 Jan 2010 13:49:26 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754949Ab0AONtU (ORCPT ); Fri, 15 Jan 2010 08:49:20 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756651Ab0AONtS (ORCPT ); Fri, 15 Jan 2010 08:49:18 -0500 Received: from cantor2.suse.de ([195.135.220.15]:43610 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754949Ab0AONtP (ORCPT ); Fri, 15 Jan 2010 08:49:15 -0500 Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.221.2]) by mx2.suse.de (Postfix) with ESMTP id CA115867E2; Fri, 15 Jan 2010 14:49:14 +0100 (CET) From: Alexander Graf To: kvm-ppc Cc: KVM General Subject: [PATCH 2/6] KVM: PPC: Add helper functions to call real mode loaders Date: Fri, 15 Jan 2010 14:49:10 +0100 Message-Id: <1263563354-11075-3-git-send-email-agraf@suse.de> X-Mailer: git-send-email 1.6.0.2 In-Reply-To: <1263563354-11075-1-git-send-email-agraf@suse.de> References: <1263563354-11075-1-git-send-email-agraf@suse.de> Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h index c7db69f..e1b441c 100644 --- a/arch/powerpc/include/asm/kvm_book3s.h +++ b/arch/powerpc/include/asm/kvm_book3s.h @@ -124,6 +124,9 @@ extern void kvmppc_set_bat(struct kvm_vcpu *vcpu, struct kvmppc_bat *bat, extern u32 kvmppc_trampoline_lowmem; extern u32 kvmppc_trampoline_enter; extern void kvmppc_rmcall(ulong srr0, ulong srr1); +extern void kvmppc_load_up_fpu(void); +extern void kvmppc_load_up_altivec(void); +extern void kvmppc_load_up_vsx(void); static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu) { diff --git a/arch/powerpc/kvm/book3s_64_exports.c b/arch/powerpc/kvm/book3s_64_exports.c index 99b0712..1dd5a1d 100644 --- a/arch/powerpc/kvm/book3s_64_exports.c +++ b/arch/powerpc/kvm/book3s_64_exports.c @@ -23,3 +23,10 @@ EXPORT_SYMBOL_GPL(kvmppc_trampoline_enter); EXPORT_SYMBOL_GPL(kvmppc_trampoline_lowmem); EXPORT_SYMBOL_GPL(kvmppc_rmcall); +EXPORT_SYMBOL_GPL(kvmppc_load_up_fpu); +#ifdef CONFIG_ALTIVEC +EXPORT_SYMBOL_GPL(kvmppc_load_up_altivec); +#endif +#ifdef CONFIG_VSX +EXPORT_SYMBOL_GPL(kvmppc_load_up_vsx); +#endif diff --git a/arch/powerpc/kvm/book3s_64_rmhandlers.S b/arch/powerpc/kvm/book3s_64_rmhandlers.S index e7091c9..c83c60a 100644 --- a/arch/powerpc/kvm/book3s_64_rmhandlers.S +++ b/arch/powerpc/kvm/book3s_64_rmhandlers.S @@ -158,6 +158,40 @@ _GLOBAL(kvmppc_rmcall) mtsrr1 r4 RFI +/* + * Activate current's external feature (FPU/Altivec/VSX) + */ +#define define_load_up(what) \ + \ +_GLOBAL(kvmppc_load_up_ ## what); \ + subi r1, r1, INT_FRAME_SIZE; \ + mflr r3; \ + std r3, _LINK(r1); \ + mfmsr r4; \ + std r31, GPR3(r1); \ + mr r31, r4; \ + li r5, MSR_DR; \ + oris r5, r5, MSR_EE@h; \ + andc r4, r4, r5; \ + mtmsr r4; \ + \ + bl .load_up_ ## what; \ + \ + mtmsr r31; \ + ld r3, _LINK(r1); \ + ld r31, GPR3(r1); \ + addi r1, r1, INT_FRAME_SIZE; \ + mtlr r3; \ + blr + +define_load_up(fpu) +#ifdef CONFIG_ALTIVEC +define_load_up(altivec) +#endif +#ifdef CONFIG_VSX +define_load_up(vsx) +#endif + .global kvmppc_trampoline_lowmem kvmppc_trampoline_lowmem: .long kvmppc_handler_lowmem_trampoline - _stext