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From: Pedro Alves <palves@redhat.com>
To: Jan Beulich <JBeulich@suse.com>, GDB <gdb-patches@sourceware.org>
Subject: Re: [PATCH] x86-64: fix ZMM register state tracking
Date: Tue, 11 Sep 2018 10:34:00 -0000	[thread overview]
Message-ID: <d724324b-fbe3-1cf7-3e17-4c34c1c88889@redhat.com> (raw)
In-Reply-To: <5B8FD8B302000078001E5940@prv1-mh.provo.novell.com>

On 09/05/2018 02:22 PM, Jan Beulich wrote:
> The three AVX512 state components are entirely independent - one being
> in its "init state" has no implication whatsoever on either of the other
> two. Fully separate X86_XSTATE_ZMM_H and X86_XSTATE_ZMM handling, to
> prevent upper halves of the upper 16 ZMM registers to display as if they
> were zero (when they aren't) after e.g. VZEROALL/VZEROUPPER.
> 
> gdb/
> 2018-09-05  Jan Beulich  <jbeulich@suse.com>
> 
> 	* i387-tdep.c (i387_supply_xsave): Split handling of
> 	X86_XSTATE_ZMM_H and X86_XSTATE_ZMM.
> 	(i387_collect_xsave): Likewise.

Does gdb/gdbserver/i387-fp.c need similar treatment?

Thanks,
Pedro Alves


  parent reply	other threads:[~2018-09-11 10:34 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-05 13:23 Jan Beulich
2018-09-07 23:13 ` Simon Marchi
2018-09-10  6:25   ` Jan Beulich
2018-09-10 13:01     ` Simon Marchi
2018-09-18 13:38       ` Jan Beulich
2018-09-25  3:29         ` Simon Marchi
2018-09-25 15:04           ` Jan Beulich
2018-10-02 19:20             ` Simon Marchi
2018-10-03 14:30               ` Jan Beulich
2018-10-03 14:41                 ` Simon Marchi
2018-09-11 10:34 ` Pedro Alves [this message]
2018-09-11 11:34   ` Jan Beulich
2018-09-24 17:19 ` Metzger, Markus T
2018-09-25  7:47   ` Jan Beulich
2018-10-10 15:12 ` [PATCH v2] " Jan Beulich
2018-10-29 10:31 ` Ping: " Jan Beulich
     [not found]   ` <8bafd220c79c3936de8ce3d6421a9c01@polymtl.ca>
2018-11-07  9:07     ` Metzger, Markus T
2018-11-07  9:12       ` Jan Beulich
2018-11-07 13:18         ` Metzger, Markus T
2018-11-07 13:25           ` Jan Beulich
2018-11-07 14:18             ` Simon Marchi
     [not found]               ` <5BE41AE902000078001F993A@prv1-mh.provo.novell.com>
2018-11-08 16:24                 ` Simon Marchi

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