Re: [PATCH 04/50] KVM: PPC: e500: MMU API

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On 08.01.2012, at 14:13, Avi Kivity wrote:

> On 01/04/2012 03:10 AM, Alexander Graf wrote:
>> From: Scott Wood <scottwood@xxxxxxxxxxxxx>
>> 
>> This implements a shared-memory API for giving host userspace access to
>> the guest's TLB.
>> 
>> 
>> +4.59 KVM_DIRTY_TLB
>> +
>> +Capability: KVM_CAP_SW_TLB
>> +Architectures: ppc
>> +Type: vcpu ioctl
>> +Parameters: struct kvm_dirty_tlb (in)
>> +Returns: 0 on success, -1 on error
>> +
>> +struct kvm_dirty_tlb {
>> +	__u64 bitmap;
>> +	__u32 num_dirty;
>> +};
> 
> Changes size with 32/64 bit userspace - is this an issue on this subarch?

#include <stdio.h>

int main(int argc, char **argv)
{
    struct x {
        long long a;
        int b;
    } x;

    printf("%d\n", sizeof(x));

    return 0;
}

---

agraf@lychee:/dev/shm> gcc align.c -o align -m64
agraf@lychee:/dev/shm> ./align
16
agraf@lychee:/dev/shm> gcc align.c -o align -m32
agraf@lychee:/dev/shm> ./align
16


Alex

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