From: Claudio Imbrenda <imbrenda@linux.ibm.com>
To: kvm@vger.kernel.org
Cc: linux-s390@vger.kernel.org, frankja@linux.ibm.com,
borntraeger@de.ibm.com, schlameuss@linux.ibm.com,
david@redhat.com, willy@infradead.org, hca@linux.ibm.com,
svens@linux.ibm.com, agordeev@linux.ibm.com, gor@linux.ibm.com,
nrb@linux.ibm.com, nsg@linux.ibm.com, seanjc@google.com,
seiden@linux.ibm.com, pbonzini@redhat.com
Subject: [PATCH v4 14/15] KVM: s390: move PGSTE softbits
Date: Thu, 23 Jan 2025 15:46:26 +0100 [thread overview]
Message-ID: <20250123144627.312456-15-imbrenda@linux.ibm.com> (raw)
In-Reply-To: <20250123144627.312456-1-imbrenda@linux.ibm.com>
Move the softbits in the PGSTEs to the other usable area.
This leaves the 16-bit block of usable bits free, which will be used in the
next patch for something else.
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Steffen Eiden <seiden@linux.ibm.com>
---
arch/s390/include/asm/pgtable.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index 48268095b0a3..151488bb9ed7 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -419,9 +419,9 @@ static inline int is_module_addr(void *addr)
#define PGSTE_HC_BIT 0x0020000000000000UL
#define PGSTE_GR_BIT 0x0004000000000000UL
#define PGSTE_GC_BIT 0x0002000000000000UL
-#define PGSTE_UC_BIT 0x0000800000000000UL /* user dirty (migration) */
-#define PGSTE_IN_BIT 0x0000400000000000UL /* IPTE notify bit */
-#define PGSTE_VSIE_BIT 0x0000200000000000UL /* ref'd in a shadow table */
+#define PGSTE_UC_BIT 0x0000000000008000UL /* user dirty (migration) */
+#define PGSTE_IN_BIT 0x0000000000004000UL /* IPTE notify bit */
+#define PGSTE_VSIE_BIT 0x0000000000002000UL /* ref'd in a shadow table */
/* Guest Page State used for virtualization */
#define _PGSTE_GPS_ZERO 0x0000000080000000UL
--
2.48.1
next prev parent reply other threads:[~2025-01-23 14:46 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-01-23 14:46 [PATCH v4 00/15] KVM: s390: Stop using page->index and other things Claudio Imbrenda
2025-01-23 14:46 ` [PATCH v4 01/15] KVM: Do not restrict the size of KVM-internal memory regions Claudio Imbrenda
2025-01-23 14:46 ` [PATCH v4 02/15] KVM: s390: wrapper for KVM_BUG Claudio Imbrenda
2025-01-23 14:46 ` [PATCH v4 03/15] KVM: s390: fake memslot for ucontrol VMs Claudio Imbrenda
2025-01-23 14:46 ` [PATCH v4 04/15] KVM: s390: selftests: fix ucontrol memory region test Claudio Imbrenda
2025-01-24 14:34 ` Christoph Schlameuss
2025-01-23 14:46 ` [PATCH v4 05/15] KVM: s390: move pv gmap functions into kvm Claudio Imbrenda
2025-01-27 8:06 ` Christoph Schlameuss
2025-01-23 14:46 ` [PATCH v4 06/15] KVM: s390: use __kvm_faultin_pfn() Claudio Imbrenda
2025-01-23 14:46 ` [PATCH v4 07/15] KVM: s390: get rid of gmap_fault() Claudio Imbrenda
2025-01-23 14:46 ` [PATCH v4 08/15] KVM: s390: get rid of gmap_translate() Claudio Imbrenda
2025-01-23 14:46 ` [PATCH v4 09/15] KVM: s390: move some gmap shadowing functions away from mm/gmap.c Claudio Imbrenda
2025-01-27 9:16 ` Christoph Schlameuss
2025-01-23 14:46 ` [PATCH v4 10/15] KVM: s390: stop using page->index for non-shadow gmaps Claudio Imbrenda
2025-01-27 9:26 ` Christoph Schlameuss
2025-01-23 14:46 ` [PATCH v4 11/15] KVM: s390: stop using lists to keep track of used dat tables Claudio Imbrenda
2025-01-23 14:46 ` [PATCH v4 12/15] KVM: s390: move gmap_shadow_pgt_lookup() into kvm Claudio Imbrenda
2025-01-27 9:33 ` Christoph Schlameuss
2025-01-23 14:46 ` [PATCH v4 13/15] KVM: s390: remove useless page->index usage Claudio Imbrenda
2025-01-27 9:34 ` Christoph Schlameuss
2025-01-23 14:46 ` Claudio Imbrenda [this message]
2025-01-27 9:35 ` [PATCH v4 14/15] KVM: s390: move PGSTE softbits Christoph Schlameuss
2025-01-23 14:46 ` [PATCH v4 15/15] KVM: s390: remove the last user of page->index Claudio Imbrenda
2025-01-27 9:36 ` Christoph Schlameuss
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