On 30.10.2008, at 20:24, Avi Kivity wrote:
Anthony Liguori wrote:
+static int nested = 0;
+module_param(nested, int, S_IRUGO);
Instead of doing this as a module parameter, we could either avoid
advertising SVM support in cpuid from userspace or we could disable
SVM in the BIOS.
I really like the later approach because it gives a better error
message within the guest. We could also keep the module parameter
but it would be nice to support disabling SVM in userspace too.
We do need to expose svme in KVM_GET_SUPPORTED_CPUID, so userspace
can enable it if it wants. But I'd like to keep the module
parameter (defaulting to off) until this has been tested better.
Sure, but we can do both. Joerg was bugging me before a lot because he
wanted to have SVM switched on on a per-guest basis. This would
basically enable us to do that - still guarded by the kernel module
parameter.
Alex
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