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target-i386: block migration and savevm if invariant tsc is exposed

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Invariant TSC documentation mentions that "invariant TSC will run at a
constant rate in all ACPI P-, C-. and T-states".

This is not the case if migration to a host with different TSC frequency
is allowed, or if savevm is performed. So block migration/savevm.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
[AF+mtosatti: Updated error message]
Signed-off-by: Andreas Färber <afaerber@suse.de>
This commit is contained in:
Marcelo Tosatti 2014-05-14 16:30:09 -03:00 • committed by Andreas Färber
parent 7d854c471a
commit 68bfd0ad4a
3 changed files with 17 additions and 2 deletions
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2
target-i386/cpu-qom.h
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@ -121,7 +121,7 @@ static inline X86CPU *x86_env_get_cpu(CPUX86State *env)
#define ENV_OFFSET offsetof(X86CPU, env)
#ifndef CONFIG_USER_ONLY
extern const struct VMStateDescription vmstate_x86_cpu;
extern struct VMStateDescription vmstate_x86_cpu;
#endif
/**