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authorEduardo Habkost <ehabkost@redhat.com>2015-01-07 15:36:33 -0200
committerMichael S. Tsirkin <mst@redhat.com>2015-01-27 14:46:17 +0200
commit744c6d474791ff3ad5c2f08edc732564199fd146 (patch)
tree88cca8700f00b89d21872e2d83a13b8ae47681ac /hw/i386/smbios.c
parent09852232ee131d0bfa5bdf7f44a806158a5c8711 (diff)
smbios: Fix dimm size calculation when RAM is multiple of 16GB
The Memory Device size calculation logic is broken when the RAM size is a multiple of 16GB, making the size of the last entry be 0 instead of 16GB. Fix the logic to handle that case correctly. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/i386/smbios.c')
-rw-r--r--hw/i386/smbios.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/hw/i386/smbios.c b/hw/i386/smbios.c
index 024e59445b..ae7032adda 100644
--- a/hw/i386/smbios.c
+++ b/hw/i386/smbios.c
@@ -850,7 +850,8 @@ void smbios_get_tables(uint8_t **tables, size_t *tables_len,
}
#define MAX_DIMM_SZ (16ll * ONE_GB)
-#define GET_DIMM_SZ ((i < dimm_cnt - 1) ? MAX_DIMM_SZ : ram_size % MAX_DIMM_SZ)
+#define GET_DIMM_SZ ((i < dimm_cnt - 1) ? MAX_DIMM_SZ \
+ : ((ram_size - 1) % MAX_DIMM_SZ) + 1)
dimm_cnt = QEMU_ALIGN_UP(ram_size, MAX_DIMM_SZ) / MAX_DIMM_SZ;