From: Farhan Ali
The crw region can be used to obtain information about
Channel Report Words (CRW) from vfio-ccw driver.
Currently only channel path related CRWs are passed to
QEMU from vfio-ccw driver.
Signed-off-by: Farhan Ali
Signed-off-by: Eric Farman
---
Notes:
v0->v1: [EF]
- Fixed copy/paste error in error message (s/schib/CRW)
hw/vfio/ccw.c | 18 ++
1 file changed, 18 insertions(+)
diff --git a/hw/vfio/ccw.c b/hw/vfio/ccw.c
index 8aa224bf43..db565b6f38 100644
--- a/hw/vfio/ccw.c
+++ b/hw/vfio/ccw.c
@@ -44,6 +44,9 @@ struct VFIOCCWDevice {
uint64_t schib_region_size;
uint64_t schib_region_offset;
struct ccw_schib_region *schib_region;
+uint64_t crw_region_size;
+uint64_t crw_region_offset;
+struct ccw_crw_region *crw_region;
EventNotifier io_notifier;
bool force_orb_pfch;
bool warned_orb_pfch;
@@ -449,10 +452,24 @@ static void vfio_ccw_get_region(VFIOCCWDevice *vcdev,
Error **errp)
vcdev->schib_region = g_malloc(info->size);
}
+ret = vfio_get_dev_region_info(vdev, VFIO_REGION_TYPE_CCW,
+ VFIO_REGION_SUBTYPE_CCW_CRW, &info);
+
+if (!ret) {
+vcdev->crw_region_size = info->size;
+if (sizeof(*vcdev->crw_region) != vcdev->crw_region_size) {
+error_setg(errp, "vfio: Unexpected size of the CRW region");
+goto out_err;
+}
+vcdev->crw_region_offset = info->offset;
+vcdev->crw_region = g_malloc(info->size);
+}
+
g_free(info);
return;
out_err:
+g_free(vcdev->crw_region);
g_free(vcdev->schib_region);
g_free(vcdev->async_cmd_region);
g_free(vcdev->io_region);
@@ -462,6 +479,7 @@ out_err:
static void vfio_ccw_put_region(VFIOCCWDevice *vcdev)
{
+g_free(vcdev->crw_region);
g_free(vcdev->schib_region);
g_free(vcdev->async_cmd_region);
g_free(vcdev->io_region);
--
2.17.1
