aboutsummaryrefslogtreecommitdiff
path: root/include
diff options
context:
space:
mode:
authorPeter Xu <peterx@redhat.com>2016-05-10 18:21:21 +0800
committerPaolo Bonzini <pbonzini@redhat.com>2016-05-23 16:53:43 +0200
commit479c2a1cb7fb82d23e66eab78b00fc5b0638439b (patch)
tree3624ee9775bb357daf54e7706329dd90fc5ec0ad /include
parent14cb949a3e2efd64ea3271b919b33b452ce7b180 (diff)
ioapic: keep RO bits for IOAPIC entry
Currently IOAPIC RO bits can be written. To be better aligned with hardware, we should let them read-only. Reviewed-by: Radim Krčmář <rkrcmar@redhat.com> Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <1462875682-1349-2-git-send-email-peterx@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'include')
-rw-r--r--include/hw/i386/ioapic_internal.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/hw/i386/ioapic_internal.h b/include/hw/i386/ioapic_internal.h
index 797ed47305..cab9e67ee7 100644
--- a/include/hw/i386/ioapic_internal.h
+++ b/include/hw/i386/ioapic_internal.h
@@ -47,6 +47,11 @@
#define IOAPIC_LVT_DEST_MODE (1 << IOAPIC_LVT_DEST_MODE_SHIFT)
#define IOAPIC_LVT_DELIV_MODE (7 << IOAPIC_LVT_DELIV_MODE_SHIFT)
+/* Bits that are read-only for IOAPIC entry */
+#define IOAPIC_RO_BITS (IOAPIC_LVT_REMOTE_IRR | \
+ IOAPIC_LVT_DELIV_STATUS)
+#define IOAPIC_RW_BITS (~(uint64_t)IOAPIC_RO_BITS)
+
#define IOAPIC_TRIGGER_EDGE 0
#define IOAPIC_TRIGGER_LEVEL 1