Re: [PATCH] KVM: s390: mark sie block as 512 byte aligned

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On Mon, 16 Mar 2020 13:11:30 +0100
David Hildenbrand <david@xxxxxxxxxx> wrote:

> On 16.03.20 13:10, Claudio Imbrenda wrote:
> > On Wed, 11 Mar 2020 09:33:04 +0100
> > Christian Borntraeger <borntraeger@xxxxxxxxxx> wrote:
> >   
> >> The sie block must be aligned to 512 bytes. Mark it as such.
> >>
> >> Signed-off-by: Christian Borntraeger <borntraeger@xxxxxxxxxx>
> >> ---
> >>  arch/s390/include/asm/kvm_host.h | 2 +-
> >>  1 file changed, 1 insertion(+), 1 deletion(-)
> >>
> >> diff --git a/arch/s390/include/asm/kvm_host.h
> >> b/arch/s390/include/asm/kvm_host.h index 0ea82152d2f7..2d50f6c432e2
> >> 100644 --- a/arch/s390/include/asm/kvm_host.h
> >> +++ b/arch/s390/include/asm/kvm_host.h
> >> @@ -344,7 +344,7 @@ struct kvm_s390_sie_block {
> >>  	__u64	itdba;			/* 0x01e8 */
> >>  	__u64   riccbd;			/* 0x01f0 */
> >>  	__u64	gvrd;			/* 0x01f8 */
> >> -} __attribute__((packed));
> >> +} __packed __aligned(512);
> >>  
> >>  struct kvm_s390_itdb {
> >>  	__u8	data[256];  
> > 
> > I agree with the addition of aligned, but did you really have to
> > remove packed? it makes me a little uncomfortable.  
> 
> There is still "__packed".
> 

I had somehow totally missed it

this is what happens when you start working before actually waking up :D




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