Re: [Qemu-devel] [PATCH v2] Improve the alignment check infrastructure

2016-06-23 Thread Richard Henderson
On 06/23/2016 11:21 AM, Sergey Sorokin wrote: Yes, I thought about it. tcg_canonicalize_memop() is good place too. But do you think that get_alignment_bits() is not good enough? I think the earlier a target-* translator problem is diagnosed the better. Leaving things in get_alignment_bits is o

Re: [Qemu-devel] [PATCH v2] Improve the alignment check infrastructure

2016-06-23 Thread Sergey Sorokin
Yes, I thought about it. tcg_canonicalize_memop() is good place too. But do you think that get_alignment_bits() is not good enough? 23.06.2016, 19:13, "Richard Henderson" : > On 06/23/2016 07:13 AM, Sergey Sorokin wrote: >>>  I think we ought to check this in tcg-op.c, rather than wait until >>>

Re: [Qemu-devel] [PATCH v2] Improve the alignment check infrastructure

2016-06-23 Thread Richard Henderson
On 06/23/2016 07:13 AM, Sergey Sorokin wrote: I think we ought to check this in tcg-op.c, rather than wait until generating code in the backend. I think it's better to check this in one place in get_alignment_bits() function because there can be a direct call of helpers from softmmu_template.h

Re: [Qemu-devel] [PATCH v2] Improve the alignment check infrastructure

2016-06-23 Thread Sergey Sorokin
I have sentA the third version of the patch.

Re: [Qemu-devel] [PATCH v2] Improve the alignment check infrastructure

2016-06-23 Thread Sergey Sorokin
A A 23.06.2016, 17:05, "Richard Henderson" : On 06/23/2016 03:03 AM, Sergey Sorokin wrote: A So what's wrong in this part of the patch? I think I just misread it. A It happens :) A A 22.06.2016, 18:50, "Richard Henderson" : On 06/22/2016 05:37 A

Re: [Qemu-devel] [PATCH v2] Improve the alignment check infrastructure

2016-06-23 Thread Richard Henderson
On 06/23/2016 03:03 AM, Sergey Sorokin wrote: So what's wrong in this part of the patch? I think I just misread it. 22.06.2016, 20:12, "Richard Henderson" : On 06/22/2016 09:30 AM, Sergey Sorokin wrote: diff --git a/tcg/ppc/tcg-target.inc.c b/tcg/ppc/tcg-target.inc.c index da1

Re: [Qemu-devel] [PATCH v2] Improve the alignment check infrastructure

2016-06-23 Thread Sergey Sorokin
So what's wrong in this part of the patch? 22.06.2016, 20:12, "Richard Henderson" : > On 06/22/2016 09:30 AM, Sergey Sorokin wrote: >>>   diff --git a/tcg/ppc/tcg-target.inc.c b/tcg/ppc/tcg-target.inc.c >>>   index da10052..3dc38fa 100644 >>>   --- a/tcg/ppc/tcg-target.inc.c >>>   

Re: [Qemu-devel] [PATCH v2] Improve the alignment check infrastructure

2016-06-22 Thread Richard Henderson
On 06/22/2016 09:30 AM, Sergey Sorokin wrote: >> diff --git a/tcg/ppc/tcg-target.inc.c b/tcg/ppc/tcg-target.inc.c >> index da10052..3dc38fa 100644 >> --- a/tcg/ppc/tcg-target.inc.c >> +++ b/tcg/ppc/tcg-target.inc.c >> @@ -1399,6 +1399,7 @@ static TCGReg tcg_out_tlb_read(TCG

Re: [Qemu-devel] [PATCH v2] Improve the alignment check infrastructure

2016-06-22 Thread Sergey Sorokin
A A 22.06.2016, 18:50, "Richard Henderson" : On 06/22/2016 05:37 AM, Sergey Sorokin wrote: A +/* Use this mask to check interception with an alignment mask A + * in a TCG backend. A + */ A +#define TLB_FLAGS_MASK (TLB_INVALID_MASK | TLB_NOTDIRTY | TLB_MMIO

Re: [Qemu-devel] [PATCH v2] Improve the alignment check infrastructure

2016-06-22 Thread Richard Henderson
On 06/22/2016 05:37 AM, Sergey Sorokin wrote: > +/* Use this mask to check interception with an alignment mask > + * in a TCG backend. > + */ > +#define TLB_FLAGS_MASK (TLB_INVALID_MASK | TLB_NOTDIRTY | TLB_MMIO) I think we ought to check this in tcg-op.c, rather than wait until generating code i