From patchwork Wed Jun 26 17:35:30 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Andreas_F=C3=A4rber?= X-Patchwork-Id: 2787501 Return-Path: X-Original-To: patchwork-kvm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 2C26D9F245 for ; Wed, 26 Jun 2013 17:36:06 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id C2F982047E for ; Wed, 26 Jun 2013 17:36:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5357E20461 for ; Wed, 26 Jun 2013 17:36:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752593Ab3FZRfv (ORCPT ); Wed, 26 Jun 2013 13:35:51 -0400 Received: from cantor2.suse.de ([195.135.220.15]:59198 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751383Ab3FZRfv (ORCPT ); Wed, 26 Jun 2013 13:35:51 -0400 Received: from relay1.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 9029AA51B7; Wed, 26 Jun 2013 19:35:49 +0200 (CEST) From: =?UTF-8?q?Andreas=20F=C3=A4rber?= To: qemu-devel@nongnu.org Cc: =?UTF-8?q?Andreas=20F=C3=A4rber?= , Gleb Natapov , Marcelo Tosatti , kvm@vger.kernel.org (open list:Overall) Subject: [PATCH qom-cpu v3 01/14] kvm: Free current_cpu identifier Date: Wed, 26 Jun 2013 19:35:30 +0200 Message-Id: <1372268143-3894-2-git-send-email-afaerber@suse.de> X-Mailer: git-send-email 1.8.1.4 In-Reply-To: <1372268143-3894-1-git-send-email-afaerber@suse.de> References: <1372268143-3894-1-git-send-email-afaerber@suse.de> MIME-Version: 1.0 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Spam-Status: No, score=-8.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Since CPU loops are done as last step in kvm_{insert,remove}_breakpoint() and kvm_remove_all_breakpoints(), we do not need to distinguish between invoking CPU and iterated CPUs and can thereby free the identifier for use as a global variable. Acked-by: Paolo Bonzini Signed-off-by: Andreas Färber --- include/sysemu/kvm.h | 10 +++++----- kvm-all.c | 39 +++++++++++++++++---------------------- kvm-stub.c | 6 +++--- 3 files changed, 25 insertions(+), 30 deletions(-) diff --git a/include/sysemu/kvm.h b/include/sysemu/kvm.h index fe8bc40..c88aee9 100644 --- a/include/sysemu/kvm.h +++ b/include/sysemu/kvm.h @@ -159,11 +159,11 @@ void *kvm_arch_ram_alloc(ram_addr_t size); void kvm_setup_guest_memory(void *start, size_t size); void kvm_flush_coalesced_mmio_buffer(void); -int kvm_insert_breakpoint(CPUArchState *current_env, target_ulong addr, +int kvm_insert_breakpoint(CPUArchState *env, target_ulong addr, target_ulong len, int type); -int kvm_remove_breakpoint(CPUArchState *current_env, target_ulong addr, +int kvm_remove_breakpoint(CPUArchState *env, target_ulong addr, target_ulong len, int type); -void kvm_remove_all_breakpoints(CPUArchState *current_env); +void kvm_remove_all_breakpoints(CPUArchState *env); int kvm_update_guest_debug(CPUArchState *env, unsigned long reinject_trap); #ifndef _WIN32 int kvm_set_signal_mask(CPUState *cpu, const sigset_t *sigset); @@ -241,9 +241,9 @@ struct kvm_sw_breakpoint *kvm_find_sw_breakpoint(CPUState *cpu, int kvm_sw_breakpoints_active(CPUState *cpu); -int kvm_arch_insert_sw_breakpoint(CPUState *current_cpu, +int kvm_arch_insert_sw_breakpoint(CPUState *cpu, struct kvm_sw_breakpoint *bp); -int kvm_arch_remove_sw_breakpoint(CPUState *current_cpu, +int kvm_arch_remove_sw_breakpoint(CPUState *cpu, struct kvm_sw_breakpoint *bp); int kvm_arch_insert_hw_breakpoint(target_ulong addr, target_ulong len, int type); diff --git a/kvm-all.c b/kvm-all.c index 7a1684e..d074597 100644 --- a/kvm-all.c +++ b/kvm-all.c @@ -1896,16 +1896,15 @@ int kvm_update_guest_debug(CPUArchState *env, unsigned long reinject_trap) return data.err; } -int kvm_insert_breakpoint(CPUArchState *current_env, target_ulong addr, +int kvm_insert_breakpoint(CPUArchState *env, target_ulong addr, target_ulong len, int type) { - CPUState *current_cpu = ENV_GET_CPU(current_env); + CPUState *cpu = ENV_GET_CPU(env); struct kvm_sw_breakpoint *bp; - CPUArchState *env; int err; if (type == GDB_BREAKPOINT_SW) { - bp = kvm_find_sw_breakpoint(current_cpu, addr); + bp = kvm_find_sw_breakpoint(cpu, addr); if (bp) { bp->use_count++; return 0; @@ -1918,14 +1917,13 @@ int kvm_insert_breakpoint(CPUArchState *current_env, target_ulong addr, bp->pc = addr; bp->use_count = 1; - err = kvm_arch_insert_sw_breakpoint(current_cpu, bp); + err = kvm_arch_insert_sw_breakpoint(cpu, bp); if (err) { g_free(bp); return err; } - QTAILQ_INSERT_HEAD(¤t_cpu->kvm_state->kvm_sw_breakpoints, - bp, entry); + QTAILQ_INSERT_HEAD(&cpu->kvm_state->kvm_sw_breakpoints, bp, entry); } else { err = kvm_arch_insert_hw_breakpoint(addr, len, type); if (err) { @@ -1942,16 +1940,15 @@ int kvm_insert_breakpoint(CPUArchState *current_env, target_ulong addr, return 0; } -int kvm_remove_breakpoint(CPUArchState *current_env, target_ulong addr, +int kvm_remove_breakpoint(CPUArchState *env, target_ulong addr, target_ulong len, int type) { - CPUState *current_cpu = ENV_GET_CPU(current_env); + CPUState *cpu = ENV_GET_CPU(env); struct kvm_sw_breakpoint *bp; - CPUArchState *env; int err; if (type == GDB_BREAKPOINT_SW) { - bp = kvm_find_sw_breakpoint(current_cpu, addr); + bp = kvm_find_sw_breakpoint(cpu, addr); if (!bp) { return -ENOENT; } @@ -1961,12 +1958,12 @@ int kvm_remove_breakpoint(CPUArchState *current_env, target_ulong addr, return 0; } - err = kvm_arch_remove_sw_breakpoint(current_cpu, bp); + err = kvm_arch_remove_sw_breakpoint(cpu, bp); if (err) { return err; } - QTAILQ_REMOVE(¤t_cpu->kvm_state->kvm_sw_breakpoints, bp, entry); + QTAILQ_REMOVE(&cpu->kvm_state->kvm_sw_breakpoints, bp, entry); g_free(bp); } else { err = kvm_arch_remove_hw_breakpoint(addr, len, type); @@ -1984,16 +1981,14 @@ int kvm_remove_breakpoint(CPUArchState *current_env, target_ulong addr, return 0; } -void kvm_remove_all_breakpoints(CPUArchState *current_env) +void kvm_remove_all_breakpoints(CPUArchState *env) { - CPUState *current_cpu = ENV_GET_CPU(current_env); + CPUState *cpu = ENV_GET_CPU(env); struct kvm_sw_breakpoint *bp, *next; - KVMState *s = current_cpu->kvm_state; - CPUArchState *env; - CPUState *cpu; + KVMState *s = cpu->kvm_state; QTAILQ_FOREACH_SAFE(bp, &s->kvm_sw_breakpoints, entry, next) { - if (kvm_arch_remove_sw_breakpoint(current_cpu, bp) != 0) { + if (kvm_arch_remove_sw_breakpoint(cpu, bp) != 0) { /* Try harder to find a CPU that currently sees the breakpoint. */ for (env = first_cpu; env != NULL; env = env->next_cpu) { cpu = ENV_GET_CPU(env); @@ -2019,19 +2014,19 @@ int kvm_update_guest_debug(CPUArchState *env, unsigned long reinject_trap) return -EINVAL; } -int kvm_insert_breakpoint(CPUArchState *current_env, target_ulong addr, +int kvm_insert_breakpoint(CPUArchState *env, target_ulong addr, target_ulong len, int type) { return -EINVAL; } -int kvm_remove_breakpoint(CPUArchState *current_env, target_ulong addr, +int kvm_remove_breakpoint(CPUArchState *env, target_ulong addr, target_ulong len, int type) { return -EINVAL; } -void kvm_remove_all_breakpoints(CPUArchState *current_env) +void kvm_remove_all_breakpoints(CPUArchState *env) { } #endif /* !KVM_CAP_SET_GUEST_DEBUG */ diff --git a/kvm-stub.c b/kvm-stub.c index 5457fe8..76da61e 100644 --- a/kvm-stub.c +++ b/kvm-stub.c @@ -83,19 +83,19 @@ int kvm_update_guest_debug(CPUArchState *env, unsigned long reinject_trap) return -ENOSYS; } -int kvm_insert_breakpoint(CPUArchState *current_env, target_ulong addr, +int kvm_insert_breakpoint(CPUArchState *env, target_ulong addr, target_ulong len, int type) { return -EINVAL; } -int kvm_remove_breakpoint(CPUArchState *current_env, target_ulong addr, +int kvm_remove_breakpoint(CPUArchState *env, target_ulong addr, target_ulong len, int type) { return -EINVAL; } -void kvm_remove_all_breakpoints(CPUArchState *current_env) +void kvm_remove_all_breakpoints(CPUArchState *env) { }