From: Claudio Imbrenda <imbrenda@linux.ibm.com>
To: kvm@vger.kernel.org
Cc: linux-s390@vger.kernel.org, borntraeger@de.ibm.com,
frankja@linux.ibm.com, david@kernel.org, nrb@linux.ibm.com,
schlameuss@linux.ibm.com, gra@linux.ibm.com
Subject: [PATCH v2 10/10] KVM: s390: Enable 1M pages by default
Date: Fri, 23 Oct 2026 17:55:31 +0200 [thread overview]
Message-ID: <20261023155531.206113-11-imbrenda@linux.ibm.com> (raw)
In-Reply-To: <20261023155531.206113-1-imbrenda@linux.ibm.com>
When userspace uses hugepages (e.g. hugetlbfs or THP), use hugepages
for the guest mapping by default. Until now the hpage parameter had to
be set manually when loading kvm.
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
---
arch/s390/kvm/s390/s390.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/s390/kvm/s390/s390.c b/arch/s390/kvm/s390/s390.c
index 280310870dac..71d79b4437ac 100644
--- a/arch/s390/kvm/s390/s390.c
+++ b/arch/s390/kvm/s390/s390.c
@@ -212,7 +212,7 @@ module_param(nested, int, S_IRUGO);
MODULE_PARM_DESC(nested, "Nested virtualization support");
/* allow 1m huge page guest backing */
-static int hpage;
+static int hpage = 1;
module_param(hpage, int, 0444);
MODULE_PARM_DESC(hpage, "1m huge page backing support");
--
2.56.0
next prev parent reply other threads:[~2026-10-23 15:55 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-23 15:55 [PATCH v2 00/10] KVM: s390: Misc bugfixes and improvements for 7.4 Claudio Imbrenda
2026-10-23 15:55 ` [PATCH v2 01/10] KVM: s390: Move some skey functions to headers Claudio Imbrenda
2026-10-23 16:18 ` sashiko-bot
2026-10-26 8:32 ` Christoph Schlameuss
2026-10-23 15:55 ` [PATCH v2 02/10] KVM: s390: Refactor and improve DAT tables handling Claudio Imbrenda
2026-10-23 16:23 ` sashiko-bot
2026-10-23 15:55 ` [PATCH v2 03/10] KVM: s390: Move prefix marker from PGSTEs to PTEs Claudio Imbrenda
2026-10-23 16:40 ` sashiko-bot
2026-10-23 15:55 ` [PATCH v2 04/10] KVM: s390: Automatically enable storage keys for UCONTROL VMs Claudio Imbrenda
2026-10-23 16:32 ` sashiko-bot
2026-10-23 15:55 ` [PATCH v2 05/10] KVM: s390: Replace ASCE usage with a struct with more flags Claudio Imbrenda
2026-10-23 16:27 ` sashiko-bot
2026-10-23 15:55 ` [PATCH v2 06/10] KVM: s390: Rework some helper functions Claudio Imbrenda
2026-10-23 16:21 ` sashiko-bot
2026-10-26 10:03 ` Christoph Schlameuss
2026-10-23 15:55 ` [PATCH v2 07/10] KVM: s390: Fix UCONTROL inconsistencies Claudio Imbrenda
2026-10-23 16:47 ` sashiko-bot
2026-10-23 15:55 ` [PATCH v2 08/10] KVM: s390: Improve unmapping of large ranges Claudio Imbrenda
2026-10-23 17:17 ` sashiko-bot
2026-10-23 15:55 ` [PATCH v2 09/10] KVM: s390: vsie: Fix pinning using the wrong flag Claudio Imbrenda
2026-10-23 16:19 ` sashiko-bot
2026-10-23 15:55 ` Claudio Imbrenda [this message]
2026-10-23 16:36 ` [PATCH v2 10/10] KVM: s390: Enable 1M pages by default sashiko-bot
2026-10-26 10:31 ` Christian Borntraeger
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