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[Xen-devel] [PATCH][qemu]Fix hvm guest cirrus_vga hvm s3 resume failure
| To: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx>, "Ian.jackson@xxxxxxxxxxxxx" <Ian.jackson@xxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] [PATCH][qemu]Fix hvm guest cirrus_vga hvm s3 resume failure |
| From: | "Ke, Liping" <liping.ke@xxxxxxxxx> |
| Date: | Tue, 21 Apr 2009 14:53:41 +0800 |
| Accept-language: | en-US |
| Acceptlanguage: | en-US |
| Cc: | "Xen-Devel \(E-mail\)" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
| Delivery-date: | Mon, 20 Apr 2009 23:54:33 -0700 |
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| Thread-index: | AcnCTeekegFYInvkQQqUVDXWzfk46g== |
| Thread-topic: | [Xen-devel] [PATCH][qemu]Fix hvm guest cirrus_vga hvm s3 resume failure |
Hi, Keir This patch is for fixing hvm guest cirrus_vga hvm s3 resume failure. We found latest Qemu (after Mar 3.10) will cause HVM guest vga fails to resume back from S3. It's because vga_bios_init is not only needed during init, but also needed after cirrus_vga reset (hvm s3 will do qemu_reset). Also, we found the outdated s->vram_ptr reset will cause s3 resume screen black, so we remove it. (win2000 boot up does not need it now) We verified the fix with the latest cs/qemu. Thanks a lot! Regards, Criping
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