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From: Julien Grall <julien@xen.org>
To: Igor Druzhinin <igor.druzhinin@citrix.com>,
	xen-devel@lists.xenproject.org
Cc: iwj@xenproject.org, wl@xen.org, andrew.cooper3@citrix.com,
	george.dunlap@citrix.com, jbeulich@suse.com,
	sstabellini@kernel.org, jgross@suse.com,
	christian.lindig@citrix.com, dave@recoil.org
Subject: Re: [PATCH] tools/libxc: use uint32_t for pirq in xc_domain_irq_permission
Date: Wed, 7 Jul 2021 13:51:21 +0100	[thread overview]
Message-ID: <b1720313-d636-9c8c-3109-748dbe311187@xen.org> (raw)
In-Reply-To: <1625619764-23537-1-git-send-email-igor.druzhinin@citrix.com>

Hi Igor,

On 07/07/2021 02:02, Igor Druzhinin wrote:
> Current unit8_t for pirq argument in this interface is too restrictive
> causing failures on modern hardware with lots of GSIs. That extends down to
> XEN_DOMCTL_irq_permission ABI structure where it needs to be fixed up
> as well. Internal Xen structures appear to be fine. Existing users of
> the interface in tree (libxl, ocaml and python bindings) are already using
> int for pirq representation that should be wide enough.

By "int", I am assuming you imply "signed int", is that correct?

If so, should the function xc_domain_irq_permission() interface take an 
int in parameter and check it is not negative?

Cheers,

-- 
Julien Grall


  parent reply	other threads:[~2021-07-07 12:51 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-07  1:02 [PATCH] tools/libxc: use uint32_t for pirq in xc_domain_irq_permission Igor Druzhinin
2021-07-07  7:46 ` Jan Beulich
2021-07-07  9:19   ` Andrew Cooper
2021-07-08  1:08     ` Igor Druzhinin
2021-07-08  1:11       ` Andrew Cooper
2021-07-08  1:14         ` Igor Druzhinin
2021-07-08  1:26           ` Andrew Cooper
2021-07-08  1:30             ` Igor Druzhinin
2021-07-07  8:48 ` Christian Lindig
2021-07-07 12:51 ` Julien Grall [this message]
2021-07-07 12:54   ` Jan Beulich
2021-07-07 12:59     ` Julien Grall
2021-07-07 13:14       ` Jan Beulich
2021-07-07 13:21         ` Julien Grall
2021-07-07 13:25           ` Jan Beulich
2021-07-08  2:06           ` Igor Druzhinin
2021-07-12  8:59             ` Julien Grall

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