|
| From: | Avi Kivity |
| Subject: | Re: [Qemu-devel] [PATCH][uq/master] kvm: x86: Save/restore FPU OP, IP and DP |
| Date: | Mon, 13 Jun 2011 11:45:34 +0300 |
| User-agent: | Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.17) Gecko/20110428 Fedora/3.1.10-1.fc15 Lightning/1.0b3pre Thunderbird/3.1.10 |
On 06/11/2011 12:23 PM, Jan Kiszka wrote:
From: Jan Kiszka<address@hidden> These FPU states are properly maintained by KVM but not yet by TCG. So far we unconditionally set them to 0 in the guest which may cause state corruptions - not only during migration. -#define CPU_SAVE_VERSION 12 +#define CPU_SAVE_VERSION 13
Incrementing the version number seems excessive - I can't imagine a real-life guest will break due to fp pointer corruption
However, I don't think we have a mechanism for optional state. We discussed this during the 18th VMState Subsection Symposium and IIRC agreed to re-raise the issue when we encountered it, which appears to be now.
-- error compiling committee.c: too many arguments to function
| [Prev in Thread] | Current Thread | [Next in Thread] |