On Thu, 2020-07-02 at 21:50 -0600, Simon Glass wrote:
Hi Anastasiia,
On Wed, 1 Jul 2020 at 10:30, Anastasiia Lukianenko < vicooodin@gmail.com> wrote:
From: Anastasiia Lukianenko anastasiia_lukianenko@epam.com
Read essential virtual block device configuration data from XenStore, initialize front ring and event channel. Update block device description with actual block size.
Use code for XenStore from mini-os.
Signed-off-by: Oleksandr Andrushchenko < oleksandr_andrushchenko@epam.com> Signed-off-by: Anastasiia Lukianenko < anastasiia_lukianenko@epam.com>
drivers/xen/pvblock.c | 272 +++++++++++++++++++++++++++++++++++++++++- 1 file changed, 271 insertions(+), 1 deletion(-)
diff --git a/drivers/xen/pvblock.c b/drivers/xen/pvblock.c index 6ce0ae97c3..9ed18be633 100644 --- a/drivers/xen/pvblock.c +++ b/drivers/xen/pvblock.c @@ -1,6 +1,7 @@ /*
- SPDX-License-Identifier: GPL-2.0+
*/
- (C) 2007-2008 Samuel Thibault.
- (C) Copyright 2020 EPAM Systems Inc.
#include <blk.h> @@ -10,26 +11,289 @@ #include <malloc.h> #include <part.h>
+#include <asm/armv8/mmu.h> +#include <asm/io.h> +#include <asm/xen/system.h>
+#include <linux/compat.h>
+#include <xen/events.h> +#include <xen/gnttab.h> +#include <xen/hvm.h> #include <xen/xenbus.h>
+#include <xen/interface/io/ring.h> +#include <xen/interface/io/blkif.h> +#include <xen/interface/io/protocols.h>
#define DRV_NAME "pvblock" #define DRV_NAME_BLK "pvblock_blk"
+#define O_RDONLY 00 +#define O_RDWR 02
+struct blkfront_info {
u64 sectors;unsigned int sector_size;int mode;int info;int barrier;int flush;+};
struct blkfront_dev {
char dummy;
domid_t dom;struct blkif_front_ring ring;grant_ref_t ring_ref;evtchn_port_t evtchn;blkif_vdev_t handle;char *nodename;char *backend;struct blkfront_info info;unsigned int devid;How about some comments?
Ok, will add.
Regards, Simon
Regards, Anastasiia