linux-kernel - [PATCH 4.4 03/56] KVM: s390: Enable all facility bits that are known good for passthrough

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Date:   Mon, 14 May 2018 08:48:08 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Alexander Yarygin <yarygin@...ux.vnet.ibm.com>,
        David Hildenbrand <dahi@...ux.vnet.ibm.com>,
        Christian Borntraeger <borntraeger@...ibm.com>
Subject: [PATCH 4.4 03/56] KVM: s390: Enable all facility bits that are known good for passthrough

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alexander Yarygin <yarygin@...ux.vnet.ibm.com>

commit ed8dda0bf74b4fb8e73d8880c78effabd3285fd8 upstream.

Some facility bits are in a range that is defined to be "ok for guests
without any necessary hypervisor changes". Enable those bits.

Signed-off-by: Alexander Yarygin <yarygin@...ux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@...ux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@...ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 arch/s390/kvm/kvm-s390.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -118,8 +118,8 @@ struct kvm_stats_debugfs_item debugfs_en
 
 /* upper facilities limit for kvm */
 unsigned long kvm_s390_fac_list_mask[] = {
-	0xffe6fffbfcfdfc40UL,
-	0x005e800000000000UL,
+	0xffe6ffffffffffffUL,
+	0x005effffffffffffUL,
 };
 
 unsigned long kvm_s390_fac_list_mask_size(void)