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[Qemu-devel] [PATCH 2/3] qxl: refuse to create primary larger then fb si
From: |
Alon Levy |
Subject: |
[Qemu-devel] [PATCH 2/3] qxl: refuse to create primary larger then fb size |
Date: |
Mon, 11 Jun 2012 09:24:00 +0300 |
Signed-off-by: Alon Levy <address@hidden>
---
hw/qxl.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/hw/qxl.c b/hw/qxl.c
index a9b4fd1..6596856 100644
--- a/hw/qxl.c
+++ b/hw/qxl.c
@@ -1204,6 +1204,16 @@ static void qxl_create_guest_primary(PCIQXLDevice *qxl,
int loadvm,
{
QXLDevSurfaceCreate surface;
QXLSurfaceCreate *sc = &qxl->guest_primary.surface;
+ int size;
+ int requested_height = le32_to_cpu(sc->height);
+ int requested_stride = le32_to_cpu(sc->stride);
+
+ size = abs(requested_stride) * requested_height;
+ if (size > qxl->fb_size) {
+ qxl_set_guest_bug(qxl, "%s: requested primary larger then framebuffer"
+ " size", __func__);
+ return;
+ }
if (qxl->mode == QXL_MODE_NATIVE) {
qxl_set_guest_bug(qxl, "%s: nop since already in QXL_MODE_NATIVE",
--
1.7.10.1
- [Qemu-devel] [PATCH 0/3] qxl fb size and async fix, Alon Levy, 2012/06/11
- [Qemu-devel] [PATCH 2/3] qxl: refuse to create primary larger then fb size,
Alon Levy <=
- [Qemu-devel] [PATCH 3/3] qxl: reset current_async on qxl_soft_reset, Alon Levy, 2012/06/11
- [Qemu-devel] [PATCH 1/3] qxl: add fb_size_mb and fb_size, Alon Levy, 2012/06/11
- Re: [Qemu-devel] [PATCH 1/3] qxl: add fb_size_mb and fb_size, Gerd Hoffmann, 2012/06/11
- Re: [Qemu-devel] [PATCH 1/3] qxl: add fb_size_mb and fb_size, Alon Levy, 2012/06/11
- Re: [Qemu-devel] [PATCH 1/3] qxl: add fb_size_mb and fb_size, Gerd Hoffmann, 2012/06/11
- Re: [Qemu-devel] [PATCH 1/3] qxl: add fb_size_mb and fb_size, Alon Levy, 2012/06/11
- Re: [Qemu-devel] [PATCH 1/3] qxl: add fb_size_mb and fb_size, Alon Levy, 2012/06/11
- Re: [Qemu-devel] [PATCH 1/3] qxl: add fb_size_mb and fb_size, Gerd Hoffmann, 2012/06/11
- Re: [Qemu-devel] [PATCH 1/3] qxl: add fb_size_mb and fb_size, Alon Levy, 2012/06/11