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[GIT,PULL,v2,18/20] KVM: s390: move PGSTE softbits

Message ID 20250131112510.48531-19-imbrenda@linux.ibm.com (mailing list archive)
State New
Headers show
Series [GIT,PULL,v2,01/20] KVM: s390: vsie: fix some corner-cases when grabbing vsie pages | expand

Commit Message

Claudio Imbrenda Jan. 31, 2025, 11:25 a.m. UTC 
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.

Reviewed-by: Steffen Eiden <seiden@linux.ibm.com>
Reviewed-by: Christoph Schlameuss <schlameuss@linux.ibm.com>
Link: https://lore.kernel.org/r/20250123144627.312456-15-imbrenda@linux.ibm.com
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Message-ID: <20250123144627.312456-15-imbrenda@linux.ibm.com>
---
 arch/s390/include/asm/pgtable.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
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Patch

diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index a3b51056a177..a96bde2e5f18 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -420,9 +420,9 @@  void setup_protection_map(void);
 #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