[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] RE: [PATCH V4 17/24] xen/ioreq: Introduce domain_has_ioreq_server()
> -----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>; Stefano Stabellini > <sstabellini@xxxxxxxxxx>; > Julien Grall <julien@xxxxxxx>; Volodymyr Babchuk > <Volodymyr_Babchuk@xxxxxxxx>; Paul Durrant > <paul@xxxxxxx>; Julien Grall <julien.grall@xxxxxxx> > Subject: [PATCH V4 17/24] xen/ioreq: Introduce domain_has_ioreq_server() > > From: Oleksandr Tyshchenko <oleksandr_tyshchenko@xxxxxxxx> > > This patch introduces a helper the main purpose of which is to check > if a domain is using IOREQ server(s). > > On Arm the current benefit is to avoid calling vcpu_ioreq_handle_completion() > (which implies iterating over all possible IOREQ servers anyway) > on every return in leave_hypervisor_to_guest() if there is no active > servers for the particular domain. > Also this helper will be used by one of the subsequent patches 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>
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