Displaying 5 results from an estimated 5 matches for "test_devices_support".
2016 Jul 07
0
[PATCH 2/2] virtio/s390: deprecate old transport
...$(CONFIG_S390_GUEST) += $(s390-virtio-objs)
diff --git a/drivers/s390/virtio/kvm_virtio.c b/drivers/s390/virtio/kvm_virtio.c
index b0a849f..5e5c11f 100644
--- a/drivers/s390/virtio/kvm_virtio.c
+++ b/drivers/s390/virtio/kvm_virtio.c
@@ -458,6 +458,8 @@ static int __init kvm_devices_init(void)
if (test_devices_support(total_memory_size) < 0)
return -ENODEV;
+ pr_warn("The s390-virtio transport is deprecated. Please switch to a modern host providing virtio-ccw.\n");
+
rc = vmem_add_mapping(total_memory_size, PAGE_SIZE);
if (rc)
return rc;
--
2.6.6
2017 Sep 27
5
[PATCH] drivers/s390/virtio: Remove the old KVM virtio transport
...ARAM_VRING_INTERRUPT:
- default:
- vring_interrupt(0, vq);
- break;
- }
-}
-
-/*
- * For s390-virtio, we expect a page above main storage containing
- * the virtio configuration. Try to actually load from this area
- * in order to figure out if the host provides this page.
- */
-static int __init test_devices_support(unsigned long addr)
-{
- int ret = -EIO;
-
- asm volatile(
- "0: lura 0,%1\n"
- "1: xgr %0,%0\n"
- "2:\n"
- EX_TABLE(0b,2b)
- EX_TABLE(1b,2b)
- : "+d" (ret)
- : "a" (addr)
- : "0", "cc");
- return ret;
-}
-/*
- * Init fun...
2017 Sep 27
5
[PATCH] drivers/s390/virtio: Remove the old KVM virtio transport
...ARAM_VRING_INTERRUPT:
- default:
- vring_interrupt(0, vq);
- break;
- }
-}
-
-/*
- * For s390-virtio, we expect a page above main storage containing
- * the virtio configuration. Try to actually load from this area
- * in order to figure out if the host provides this page.
- */
-static int __init test_devices_support(unsigned long addr)
-{
- int ret = -EIO;
-
- asm volatile(
- "0: lura 0,%1\n"
- "1: xgr %0,%0\n"
- "2:\n"
- EX_TABLE(0b,2b)
- EX_TABLE(1b,2b)
- : "+d" (ret)
- : "a" (addr)
- : "0", "cc");
- return ret;
-}
-/*
- * Init fun...
2016 Jul 07
4
[PATCH 0/2] virtio/s390 patches for 4.8
Michael,
here are two virtio/s390 patches for 4.8.
First, Jing Liu noticed that she could trigger panics while playing
around with hvc0 as preferred console but no virtio console: This
can be fixed by not discarding our early_put_chars after init (as
the minimal fix).
This made us wonder why we still have that code around when no current
host code supports the old transport: We have no idea
2016 Jul 07
4
[PATCH 0/2] virtio/s390 patches for 4.8
Michael,
here are two virtio/s390 patches for 4.8.
First, Jing Liu noticed that she could trigger panics while playing
around with hvc0 as preferred console but no virtio console: This
can be fixed by not discarding our early_put_chars after init (as
the minimal fix).
This made us wonder why we still have that code around when no current
host code supports the old transport: We have no idea