RE: [PATCH V4 21/24] xen/ioreq: Make x86's send_invalidate_req() common

[Paul Durrant <xadimgnik@xxxxxxxxx>]

> -----Original Message-----
> From: Xen-devel <xen-devel-bounces@xxxxxxxxxxxxxxxxxxxx> On Behalf Of 
> Oleksandr Tyshchenko
> Sent: 12 January 2021 21:52
> To: xen-devel@xxxxxxxxxxxxxxxxxxxx
> Cc: Oleksandr Tyshchenko <oleksandr_tyshchenko@xxxxxxxx>; Jan Beulich 
> <jbeulich@xxxxxxxx>; Andrew
> Cooper <andrew.cooper3@xxxxxxxxxx>; Roger Pau Monné <roger.pau@xxxxxxxxxx>; 
> Wei Liu <wl@xxxxxxx>;
> George Dunlap <george.dunlap@xxxxxxxxxx>; Ian Jackson <iwj@xxxxxxxxxxxxxx>; 
> Julien Grall
> <julien@xxxxxxx>; Stefano Stabellini <sstabellini@xxxxxxxxxx>; Paul Durrant 
> <paul@xxxxxxx>; Julien
> Grall <julien.grall@xxxxxxx>
> Subject: [PATCH V4 21/24] xen/ioreq: Make x86's send_invalidate_req() common
> 
> From: Oleksandr Tyshchenko <oleksandr_tyshchenko@xxxxxxxx>
> 
> As the IOREQ is a common feature now and we also need to
> invalidate qemu/demu mapcache on Arm when the required condition
> occurs this patch moves this function to the common code
> (and remames it to ioreq_signal_mapcache_invalidate).
> This patch also moves per-domain qemu_mapcache_invalidate
> variable out of the arch sub-struct (and drops "qemu" prefix).
> 
> We don't put this variable inside the #ifdef CONFIG_IOREQ_SERVER
> at the end of struct domain, but in the hole next to the group
> of 5 bools further up which is more efficient.
> 
> The subsequent patch will add mapcache invalidation handling on Arm.
> 
> Signed-off-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@xxxxxxxx>
> CC: Julien Grall <julien.grall@xxxxxxx>
> [On Arm only]
> Tested-by: Wei Chen <Wei.Chen@xxxxxxx>

Reviewed-by: Paul Durrant <paul@xxxxxxx>