From patchwork Tue Oct 2 18:21:23 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anthony PERARD X-Patchwork-Id: 188602 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 0BB752C008C for ; Wed, 3 Oct 2012 04:22:05 +1000 (EST) Received: from localhost ([::1]:50828 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TJ76X-0007BY-Ls for incoming@patchwork.ozlabs.org; Tue, 02 Oct 2012 14:22:01 -0400 Received: from eggs.gnu.org ([208.118.235.92]:51096) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TJ764-0006be-PC for qemu-devel@nongnu.org; Tue, 02 Oct 2012 14:21:39 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TJ761-0003Dt-PI for qemu-devel@nongnu.org; Tue, 02 Oct 2012 14:21:32 -0400 Received: from smtp02.citrix.com ([66.165.176.63]:2725) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TJ761-0003Dd-L6 for qemu-devel@nongnu.org; Tue, 02 Oct 2012 14:21:29 -0400 X-IronPort-AV: E=Sophos;i="4.80,524,1344211200"; d="scan'208";a="210058482" Received: from ftlpmailmx02.citrite.net ([10.13.107.66]) by FTLPIPO02.CITRIX.COM with ESMTP/TLS/RC4-MD5; 02 Oct 2012 18:21:27 +0000 Received: from ukmail1.uk.xensource.com (10.80.16.128) by smtprelay.citrix.com (10.13.107.66) with Microsoft SMTP Server id 8.3.279.1; Tue, 2 Oct 2012 14:21:27 -0400 Received: from [10.80.3.61] (helo=perard.uk.xensource.com) by ukmail1.uk.xensource.com with esmtp (Exim 4.69) (envelope-from ) id 1TJ75z-0004Bm-3z; Tue, 02 Oct 2012 19:21:27 +0100 From: Anthony PERARD To: QEMU-devel , Stefano Stabellini Date: Tue, 2 Oct 2012 19:21:23 +0100 Message-ID: <1349202085-26476-4-git-send-email-anthony.perard@citrix.com> X-Mailer: git-send-email 1.7.12.2 In-Reply-To: <1349202085-26476-1-git-send-email-anthony.perard@citrix.com> References: <1349202085-26476-1-git-send-email-anthony.perard@citrix.com> MIME-Version: 1.0 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 66.165.176.63 Cc: Anthony PERARD , Xen Devel Subject: [Qemu-devel] [PATCH V5 3/5] exec: Introduce helper to set dirty flags. X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org This new helper/hook is used in the next patch to add an extra call in a single place. Signed-off-by: Anthony PERARD Reviewed-by: Avi Kivity --- exec.c | 52 +++++++++++++++++----------------------------------- 1 file changed, 17 insertions(+), 35 deletions(-) diff --git a/exec.c b/exec.c index bb6aa4a..366684c 100644 --- a/exec.c +++ b/exec.c @@ -3417,6 +3417,18 @@ int cpu_memory_rw_debug(CPUArchState *env, target_ulong addr, } #else + +static void invalidate_and_set_dirty(target_phys_addr_t addr, + target_phys_addr_t length) +{ + if (!cpu_physical_memory_is_dirty(addr)) { + /* invalidate code */ + tb_invalidate_phys_page_range(addr, addr + length, 0); + /* set dirty bit */ + cpu_physical_memory_set_dirty_flags(addr, (0xff & ~CODE_DIRTY_FLAG)); + } +} + void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf, int len, int is_write) { @@ -3462,13 +3474,7 @@ void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf, /* RAM case */ ptr = qemu_get_ram_ptr(addr1); memcpy(ptr, buf, l); - if (!cpu_physical_memory_is_dirty(addr1)) { - /* invalidate code */ - tb_invalidate_phys_page_range(addr1, addr1 + l, 0); - /* set dirty bit */ - cpu_physical_memory_set_dirty_flags( - addr1, (0xff & ~CODE_DIRTY_FLAG)); - } + invalidate_and_set_dirty(addr1, l); qemu_put_ram_ptr(ptr); } } else { @@ -3534,13 +3540,7 @@ void cpu_physical_memory_write_rom(target_phys_addr_t addr, /* ROM/RAM case */ ptr = qemu_get_ram_ptr(addr1); memcpy(ptr, buf, l); - if (!cpu_physical_memory_is_dirty(addr1)) { - /* invalidate code */ - tb_invalidate_phys_page_range(addr1, addr1 + l, 0); - /* set dirty bit */ - cpu_physical_memory_set_dirty_flags( - addr1, (0xff & ~CODE_DIRTY_FLAG)); - } + invalidate_and_set_dirty(addr1, l); qemu_put_ram_ptr(ptr); } len -= l; @@ -3666,13 +3666,7 @@ void cpu_physical_memory_unmap(void *buffer, target_phys_addr_t len, l = TARGET_PAGE_SIZE; if (l > access_len) l = access_len; - if (!cpu_physical_memory_is_dirty(addr1)) { - /* invalidate code */ - tb_invalidate_phys_page_range(addr1, addr1 + l, 0); - /* set dirty bit */ - cpu_physical_memory_set_dirty_flags( - addr1, (0xff & ~CODE_DIRTY_FLAG)); - } + invalidate_and_set_dirty(addr1, l); addr1 += l; access_len -= l; } @@ -3978,13 +3972,7 @@ static inline void stl_phys_internal(target_phys_addr_t addr, uint32_t val, stl_p(ptr, val); break; } - if (!cpu_physical_memory_is_dirty(addr1)) { - /* invalidate code */ - tb_invalidate_phys_page_range(addr1, addr1 + 4, 0); - /* set dirty bit */ - cpu_physical_memory_set_dirty_flags(addr1, - (0xff & ~CODE_DIRTY_FLAG)); - } + invalidate_and_set_dirty(addr1, 4); } } @@ -4051,13 +4039,7 @@ static inline void stw_phys_internal(target_phys_addr_t addr, uint32_t val, stw_p(ptr, val); break; } - if (!cpu_physical_memory_is_dirty(addr1)) { - /* invalidate code */ - tb_invalidate_phys_page_range(addr1, addr1 + 2, 0); - /* set dirty bit */ - cpu_physical_memory_set_dirty_flags(addr1, - (0xff & ~CODE_DIRTY_FLAG)); - } + invalidate_and_set_dirty(addr1, 2); } }