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authorPaolo Bonzini <pbonzini@redhat.com>2021-12-08 13:29:16 +0300
committerPaolo Bonzini <pbonzini@redhat.com>2021-12-08 13:30:48 +0300
commit93b350f884c451d3cb75e6e3814266cf2d2afab1 (patch)
tree4fc17bfc4e31b6348df3c36117bd64a0b4520f88 /arch/s390/include/asm
parentadbfb12d4c4517a8adde23a7fc46538953d56eea (diff)
parent250552b925ce400c17d166422fde9bb215958481 (diff)
downloadlinux-93b350f884c451d3cb75e6e3814266cf2d2afab1.tar.xz
Merge branch 'kvm-on-hv-msrbm-fix' into HEAD
Merge bugfix for enlightened MSR Bitmap, before adding support to KVM for exposing the feature to nested guests.
Diffstat (limited to 'arch/s390/include/asm')
-rw-r--r--arch/s390/include/asm/pci_io.h7
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/s390/include/asm/pci_io.h b/arch/s390/include/asm/pci_io.h
index e4dc64cc9c55..287bb88f7698 100644
--- a/arch/s390/include/asm/pci_io.h
+++ b/arch/s390/include/asm/pci_io.h
@@ -14,12 +14,13 @@
/* I/O Map */
#define ZPCI_IOMAP_SHIFT 48
-#define ZPCI_IOMAP_ADDR_BASE 0x8000000000000000UL
+#define ZPCI_IOMAP_ADDR_SHIFT 62
+#define ZPCI_IOMAP_ADDR_BASE (1UL << ZPCI_IOMAP_ADDR_SHIFT)
#define ZPCI_IOMAP_ADDR_OFF_MASK ((1UL << ZPCI_IOMAP_SHIFT) - 1)
#define ZPCI_IOMAP_MAX_ENTRIES \
- ((ULONG_MAX - ZPCI_IOMAP_ADDR_BASE + 1) / (1UL << ZPCI_IOMAP_SHIFT))
+ (1UL << (ZPCI_IOMAP_ADDR_SHIFT - ZPCI_IOMAP_SHIFT))
#define ZPCI_IOMAP_ADDR_IDX_MASK \
- (~ZPCI_IOMAP_ADDR_OFF_MASK - ZPCI_IOMAP_ADDR_BASE)
+ ((ZPCI_IOMAP_ADDR_BASE - 1) & ~ZPCI_IOMAP_ADDR_OFF_MASK)
struct zpci_iomap_entry {
u32 fh;