From patchwork Wed Jul 6 10:04:37 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gerd Hoffmann X-Patchwork-Id: 645216 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3rkxX41sHGz9sBf for ; Wed, 6 Jul 2016 20:17:40 +1000 (AEST) Received: from localhost ([::1]:60774 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bKjth-0003gP-UB for incoming@patchwork.ozlabs.org; Wed, 06 Jul 2016 06:17:37 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:34436) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bKjhM-0005Qm-8G for qemu-devel@nongnu.org; Wed, 06 Jul 2016 06:04:54 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bKjhI-0002EF-0w for qemu-devel@nongnu.org; Wed, 06 Jul 2016 06:04:51 -0400 Received: from mx1.redhat.com ([209.132.183.28]:41685) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bKjhH-0002Dk-PH for qemu-devel@nongnu.org; Wed, 06 Jul 2016 06:04:47 -0400 Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 019EB63E06 for ; Wed, 6 Jul 2016 10:04:47 +0000 (UTC) Received: from nilsson.home.kraxel.org (ovpn-116-27.ams2.redhat.com [10.36.116.27]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u66A4jBv014518; Wed, 6 Jul 2016 06:04:46 -0400 Received: by nilsson.home.kraxel.org (Postfix, from userid 500) id 339AB80E36; Wed, 6 Jul 2016 12:04:44 +0200 (CEST) From: Gerd Hoffmann To: qemu-devel@nongnu.org Date: Wed, 6 Jul 2016 12:04:37 +0200 Message-Id: <1467799482-26420-5-git-send-email-kraxel@redhat.com> In-Reply-To: <1467799482-26420-1-git-send-email-kraxel@redhat.com> References: <1467799482-26420-1-git-send-email-kraxel@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Wed, 06 Jul 2016 10:04:47 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PULL 4/9] qxl: store memory region and offset instead of pointer for guest slots X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Gerd Hoffmann Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Store MemoryRegion and offset instead of a pointer for each qxl memory slot, so we can easily figure in which memory region an qxl object stored. Signed-off-by: Gerd Hoffmann Message-id: 1466597244-5938-2-git-send-email-kraxel@redhat.com --- hw/display/qxl.c | 15 +++++++++++---- hw/display/qxl.h | 3 ++- 2 files changed, 13 insertions(+), 5 deletions(-) diff --git a/hw/display/qxl.c b/hw/display/qxl.c index 2ea4e3b..8101f69 100644 --- a/hw/display/qxl.c +++ b/hw/display/qxl.c @@ -1244,6 +1244,7 @@ static int qxl_add_memslot(PCIQXLDevice *d, uint32_t slot_id, uint64_t delta, int pci_region; pcibus_t pci_start; pcibus_t pci_end; + MemoryRegion *mr; intptr_t virt_start; QXLDevMemSlot memslot; int i; @@ -1290,11 +1291,11 @@ static int qxl_add_memslot(PCIQXLDevice *d, uint32_t slot_id, uint64_t delta, switch (pci_region) { case QXL_RAM_RANGE_INDEX: - virt_start = (intptr_t)memory_region_get_ram_ptr(&d->vga.vram); + mr = &d->vga.vram; break; case QXL_VRAM_RANGE_INDEX: case 4 /* vram 64bit */: - virt_start = (intptr_t)memory_region_get_ram_ptr(&d->vram_bar); + mr = &d->vram_bar; break; default: /* should not happen */ @@ -1302,6 +1303,7 @@ static int qxl_add_memslot(PCIQXLDevice *d, uint32_t slot_id, uint64_t delta, return 1; } + virt_start = (intptr_t)memory_region_get_ram_ptr(mr); memslot.slot_id = slot_id; memslot.slot_group_id = MEMSLOT_GROUP_GUEST; /* guest group */ memslot.virt_start = virt_start + (guest_start - pci_start); @@ -1311,7 +1313,8 @@ static int qxl_add_memslot(PCIQXLDevice *d, uint32_t slot_id, uint64_t delta, qxl_rom_set_dirty(d); qemu_spice_add_memslot(&d->ssd, &memslot, async); - d->guest_slots[slot_id].ptr = (void*)memslot.virt_start; + d->guest_slots[slot_id].mr = mr; + d->guest_slots[slot_id].offset = memslot.virt_start - virt_start; d->guest_slots[slot_id].size = memslot.virt_end - memslot.virt_start; d->guest_slots[slot_id].delta = delta; d->guest_slots[slot_id].active = 1; @@ -1378,6 +1381,7 @@ void *qxl_phys2virt(PCIQXLDevice *qxl, QXLPHYSICAL pqxl, int group_id) { uint64_t offset; uint32_t slot; + void *ptr; switch (group_id) { case MEMSLOT_GROUP_HOST: @@ -1387,7 +1391,10 @@ void *qxl_phys2virt(PCIQXLDevice *qxl, QXLPHYSICAL pqxl, int group_id) if (!qxl_get_check_slot_offset(qxl, pqxl, &slot, &offset)) { return NULL; } - return qxl->guest_slots[slot].ptr + offset; + ptr = memory_region_get_ram_ptr(qxl->guest_slots[slot].mr); + ptr += qxl->guest_slots[slot].offset; + ptr += offset; + return ptr; } return NULL; } diff --git a/hw/display/qxl.h b/hw/display/qxl.h index 39ff004..fdb619d 100644 --- a/hw/display/qxl.h +++ b/hw/display/qxl.h @@ -53,7 +53,8 @@ typedef struct PCIQXLDevice { struct guest_slots { QXLMemSlot slot; - void *ptr; + MemoryRegion *mr; + uint64_t offset; uint64_t size; uint64_t delta; uint32_t active;