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 13/15] KVM: s390: remove useless page->index usage
Date: Thu, 23 Jan 2025 15:46:25 +0100 [thread overview]
Message-ID: <20250123144627.312456-14-imbrenda@linux.ibm.com> (raw)
In-Reply-To: <20250123144627.312456-1-imbrenda@linux.ibm.com>
The page->index field for VSIE dat tables is only used for segment
tables.
Stop setting the field for all region tables.
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
---
arch/s390/mm/gmap.c | 9 ---------
1 file changed, 9 deletions(-)
diff --git a/arch/s390/mm/gmap.c b/arch/s390/mm/gmap.c
index 918ea14515a1..38f044321704 100644
--- a/arch/s390/mm/gmap.c
+++ b/arch/s390/mm/gmap.c
@@ -1520,9 +1520,6 @@ int gmap_shadow_r2t(struct gmap *sg, unsigned long saddr, unsigned long r2t,
page = gmap_alloc_crst();
if (!page)
return -ENOMEM;
- page->index = r2t & _REGION_ENTRY_ORIGIN;
- if (fake)
- page->index |= GMAP_SHADOW_FAKE_TABLE;
s_r2t = page_to_phys(page);
/* Install shadow region second table */
spin_lock(&sg->guest_table_lock);
@@ -1603,9 +1600,6 @@ int gmap_shadow_r3t(struct gmap *sg, unsigned long saddr, unsigned long r3t,
page = gmap_alloc_crst();
if (!page)
return -ENOMEM;
- page->index = r3t & _REGION_ENTRY_ORIGIN;
- if (fake)
- page->index |= GMAP_SHADOW_FAKE_TABLE;
s_r3t = page_to_phys(page);
/* Install shadow region second table */
spin_lock(&sg->guest_table_lock);
@@ -1686,9 +1680,6 @@ int gmap_shadow_sgt(struct gmap *sg, unsigned long saddr, unsigned long sgt,
page = gmap_alloc_crst();
if (!page)
return -ENOMEM;
- page->index = sgt & _REGION_ENTRY_ORIGIN;
- if (fake)
- page->index |= GMAP_SHADOW_FAKE_TABLE;
s_sgt = page_to_phys(page);
/* Install shadow region second table */
spin_lock(&sg->guest_table_lock);
--
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 ` Claudio Imbrenda [this message]
2025-01-27 9:34 ` [PATCH v4 13/15] KVM: s390: remove useless page->index usage Christoph Schlameuss
2025-01-23 14:46 ` [PATCH v4 14/15] KVM: s390: move PGSTE softbits Claudio Imbrenda
2025-01-27 9:35 ` 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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