From patchwork Fri Oct 29 16:56:06 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alex Williamson X-Patchwork-Id: 290772 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id o9TGuHOa023049 for ; Fri, 29 Oct 2010 16:56:18 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752987Ab0J2Q4L (ORCPT ); Fri, 29 Oct 2010 12:56:11 -0400 Received: from mx1.redhat.com ([209.132.183.28]:30699 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752424Ab0J2Q4L (ORCPT ); Fri, 29 Oct 2010 12:56:11 -0400 Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id o9TGu8JP014125 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 29 Oct 2010 12:56:08 -0400 Received: from s20.home (ovpn01.gateway.prod.ext.phx2.redhat.com [10.5.9.1]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id o9TGu6EP003701; Fri, 29 Oct 2010 12:56:07 -0400 From: Alex Williamson Subject: [PATCH] exec: Implement qemu_ram_free_from_ptr() To: qemu-devel@nongnu.org, anthony@codemonkey.ws Cc: kvm@vger.kernel.org, alex.williamson@redhat.com, mst@redhat.com, chrisw@redhat.com, ddutile@redhat.com Date: Fri, 29 Oct 2010 10:56:06 -0600 Message-ID: <20101029165545.5070.50804.stgit@s20.home> User-Agent: StGIT/0.14.3 MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter1.kernel.org [140.211.167.41]); Fri, 29 Oct 2010 16:56:18 +0000 (UTC) diff --git a/cpu-common.h b/cpu-common.h index a543b5d..8a3d1da 100644 --- a/cpu-common.h +++ b/cpu-common.h @@ -43,6 +43,7 @@ ram_addr_t cpu_get_physical_page_desc(target_phys_addr_t addr); ram_addr_t qemu_ram_alloc_from_ptr(DeviceState *dev, const char *name, ram_addr_t size, void *host); ram_addr_t qemu_ram_alloc(DeviceState *dev, const char *name, ram_addr_t size); +void qemu_ram_free_from_ptr(ram_addr_t addr); void qemu_ram_free(ram_addr_t addr); /* This should only be used for ram local to a device. */ void *qemu_get_ram_ptr(ram_addr_t addr); diff --git a/exec.c b/exec.c index 631d8c5..2b3b9ba 100644 --- a/exec.c +++ b/exec.c @@ -2882,6 +2882,19 @@ ram_addr_t qemu_ram_alloc(DeviceState *dev, const char *name, ram_addr_t size) return qemu_ram_alloc_from_ptr(dev, name, size, NULL); } +void qemu_ram_free_from_ptr(ram_addr_t addr) +{ + RAMBlock *block; + + QLIST_FOREACH(block, &ram_list.blocks, next) { + if (addr == block->offset) { + QLIST_REMOVE(block, next); + qemu_free(block); + return; + } + } +} + void qemu_ram_free(ram_addr_t addr) { RAMBlock *block;