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d="scan'208";a="16066424" Date: Wed, 22 Apr 2020 10:26:10 +0200 From: Roger Pau =?utf-8?B?TW9ubsOp?= To: Jan Beulich Subject: Re: [PATCH v2 4/4] x86: adjustments to guest handle treatment Message-ID: <20200422082610.GA28601@Air-de-Roger> References: <9d4b738a-4487-6bfc-3076-597d074c7b47@suse.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: X-ClientProxiedBy: AMSPEX02CAS01.citrite.net (10.69.22.112) To AMSPEX02CL02.citrite.net (10.69.22.126) X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Stefano Stabellini , Julien Grall , Wei Liu , Andrew Cooper , Tim Deegan , George Dunlap , "xen-devel@lists.xenproject.org" Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" On Tue, Apr 21, 2020 at 11:13:23AM +0200, Jan Beulich wrote: > First of all avoid excessive conversions. copy_{from,to}_guest(), for > example, work fine with all of XEN_GUEST_HANDLE{,_64,_PARAM}(). > > Further > - do_physdev_op_compat() didn't use the param form for its parameter, > - {hap,shadow}_track_dirty_vram() wrongly used the param form, > - compat processor Px logic failed to check compatibility of native and > compat structures not further converted. > > As this eliminates all users of guest_handle_from_param() and as there's > no real need to allow for conversions in both directions, drop the > macros as well. > > Signed-off-by: Jan Beulich > --- > --- a/xen/drivers/acpi/pmstat.c > +++ b/xen/drivers/acpi/pmstat.c > @@ -492,7 +492,7 @@ int do_pm_op(struct xen_sysctl_pm_op *op > return ret; > } > > -int acpi_set_pdc_bits(u32 acpi_id, XEN_GUEST_HANDLE_PARAM(uint32) pdc) > +int acpi_set_pdc_bits(u32 acpi_id, XEN_GUEST_HANDLE(uint32) pdc) Nit: switch to uint32_t while there? Reviewed-by: Roger Pau Monné Thanks, Roger.