From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:45012) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bFgwY-0004hC-G3 for qemu-devel@nongnu.org; Wed, 22 Jun 2016 08:07:43 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bFgwS-0006Lq-HB for qemu-devel@nongnu.org; Wed, 22 Jun 2016 08:07:41 -0400 Received: from mx1.redhat.com ([209.132.183.28]:60390) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bFgwS-0006Lh-9E for qemu-devel@nongnu.org; Wed, 22 Jun 2016 08:07:36 -0400 From: Gerd Hoffmann Date: Wed, 22 Jun 2016 14:07:23 +0200 Message-Id: <1466597244-5938-2-git-send-email-kraxel@redhat.com> In-Reply-To: <1466597244-5938-1-git-send-email-kraxel@redhat.com> References: <1466597244-5938-1-git-send-email-kraxel@redhat.com> Subject: [Qemu-devel] [PATCH 2/3] qxl: store memory region and offset instead of pointer for guest slots List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: spice-devel@lists.freedesktop.org, Gerd Hoffmann 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 --- 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 409c236..4909a7e 100644 --- a/hw/display/qxl.c +++ b/hw/display/qxl.c @@ -1243,6 +1243,7 @@ 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; @@ -1289,11 +1290,11 @@ 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 */ @@ -1301,6 +1302,7 @@ 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); @@ -1310,7 +1312,8 @@ 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; @@ -1377,6 +1380,7 @@ 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: @@ -1386,7 +1390,10 @@ 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 2ddf065..0147bcc 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; -- 1.8.3.1