On Fri, Dec 24, 2010 at 11:30:37AM +0800, Huang Ying wrote: > On Thu, 2010-12-23 at 22:28 +0800, Marcelo Tosatti wrote: > > Can't you free and reallocate all guest memory instead, on reboot, if > > there's a hwpoisoned page? Then you don't need this interface. > > Consider about this method. It seems that some guest RAMs are not > allocated in qemu_ram_alloc_from_ptr(), that is, host parameter is > allocated elsewhere and passed in. I found two: > > - assigned_dev_register_regions() in hw/device-assignment.c > - create_shared_memory_BAR() and ivshmem_read() in hw/ivshmem.c > > There is no general method to reallocate these memory so far. We may > need a flag in struct RAMBlock to track these memory, and ignore them > during reallocation. But if there are hwpoisoned pages in these memory, > we can not recover. Do you think that is OK? Yes, these are not guest RAM so there should be no MCE for them. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
