lkml.org 
[lkml]   [2019]   [Dec]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] KVM: arm/arm64: vgic-its: Check hopefully the last DISCARD command error
Date
DISCARD command error occurs if any of the following apply:

- [ ... (those which we have already handled) ]
- The EventID for the device is mapped to a collection that
has not been mapped to an RDbase using MAPC.

Let's take the unmapped collection case into account and report
a DISCARD command error if it really happens.

Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
---
virt/kvm/arm/vgic/vgic-its.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/virt/kvm/arm/vgic/vgic-its.c b/virt/kvm/arm/vgic/vgic-its.c
index 17920d1b350a..d53d34a33e35 100644
--- a/virt/kvm/arm/vgic/vgic-its.c
+++ b/virt/kvm/arm/vgic/vgic-its.c
@@ -839,9 +839,8 @@ static int vgic_its_cmd_handle_discard(struct kvm *kvm, struct vgic_its *its,
u32 event_id = its_cmd_get_id(its_cmd);
struct its_ite *ite;

-
ite = find_ite(its, device_id, event_id);
- if (ite && ite->collection) {
+ if (ite && its_is_collection_mapped(ite->collection)) {
/*
* Though the spec talks about removing the pending state, we
* don't bother here since we clear the ITTE anyway and the
--
2.19.1

\
 
 \ /
  Last update: 2019-12-25 14:31    [W:0.037 / U:22.508 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site