From: Chao Gao <chao.gao@intel.com>
Date: Fri, 17 Nov 2017 06:24:23 +0000 (+0800)
Subject: i386/msi: Correct mask of destination ID in MSI address
X-Git-Tag: v2.11.0-rc4~4^2~6
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=861fec459bb4db69123c3b320e1bad9585cdb524;p=thirdparty%2Fqemu.git

i386/msi: Correct mask of destination ID in MSI address

According to SDM 10.11.1, only [19:12] bits of MSI address are
Destination ID, change the mask to avoid ambiguity for VT-d spec
has used the bit 4 to indicate a remappable interrupt request.

Signed-off-by: Chao Gao <chao.gao@intel.com>
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---

diff --git a/include/hw/i386/apic-msidef.h b/include/hw/i386/apic-msidef.h
index 8b4d4cca552..420b41167db 100644
--- a/include/hw/i386/apic-msidef.h
+++ b/include/hw/i386/apic-msidef.h
@@ -26,6 +26,6 @@
 
 #define MSI_ADDR_DEST_ID_SHIFT          12
 #define MSI_ADDR_DEST_IDX_SHIFT         4
-#define  MSI_ADDR_DEST_ID_MASK          0x00ffff0
+#define  MSI_ADDR_DEST_ID_MASK          0x000ff000
 
 #endif /* HW_APIC_MSIDEF_H */