lkml.org 
[lkml]   [2016]   [Aug]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 3/4] KVM: arm/arm64: Check for broadcast TLBI support
Date
KVM awaits a working broadcast TLBI implementation.
Error out early when this is not provided by the
hardware.

Signed-off-by: Matthias Brugger <mbrugger@suse.com>
---
arch/arm/kvm/arm.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
index f1bde7c..e627fac 100644
--- a/arch/arm/kvm/arm.c
+++ b/arch/arm/kvm/arm.c
@@ -1376,6 +1376,11 @@ int kvm_arch_init(void *opaque)
int err;
int ret, cpu;

+ if (cpus_have_cap(ARM64_HAS_NO_BCAST_TLBI)) {
+ kvm_err("Missing broadcast TLBI support.\n");
+ return -ENODEV;
+ }
+
if (!is_hyp_mode_available()) {
kvm_err("HYP mode not available\n");
return -ENODEV;
--
2.6.6
\
 
 \ /
  Last update: 2016-08-04 12:01    [W:0.065 / U:1.340 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site