From: Lan Tianyu <tianyu.lan@intel.com>
To: qemu-devel@nongnu.org, xen-devel@lists.xensource.com
Cc: Lan Tianyu <tianyu.lan@intel.com>,
kevin.tian@intel.com, sstabellini@kernel.org, mst@redhat.com,
anthony.perard@citrix.com, marcel@redhat.com,
Chao Gao <chao.gao@intel.com>
Subject: [PATCH 1/3] i386/msi: Correct mask of destination ID in MSI address
Date: Thu, 29 Jun 2017 01:49:52 -0400 [thread overview]
Message-ID: <1498715394-16402-2-git-send-email-tianyu.lan@intel.com> (raw)
In-Reply-To: <1498715394-16402-1-git-send-email-tianyu.lan@intel.com>
From: Chao Gao <chao.gao@intel.com>
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>
---
include/hw/i386/apic-msidef.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/hw/i386/apic-msidef.h b/include/hw/i386/apic-msidef.h
index 8b4d4cc..420b411 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 */
--
1.8.3.1
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next prev parent reply other threads:[~2017-06-29 5:49 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-29 5:49 [PATCH 0/3] Qemu: Add Xen vIOMMU interrupt remapping function support Lan Tianyu
2017-06-29 5:49 ` Lan Tianyu [this message]
2017-06-30 13:49 ` [PATCH 1/3] i386/msi: Correct mask of destination ID in MSI address Anthony PERARD
2017-07-04 2:31 ` [Qemu-devel] " Peter Xu
2017-06-29 5:49 ` [PATCH 2/3] xen-pt: bind/unbind interrupt remapping format MSI Lan Tianyu
2017-06-30 15:48 ` Anthony PERARD
2017-07-04 1:52 ` Lan Tianyu
2017-06-29 5:49 ` [PATCH 3/3] msi: Handle remappable format interrupt request Lan Tianyu
2017-06-30 15:52 ` Anthony PERARD
2017-07-06 23:50 ` [Qemu-devel] [PATCH 0/3] Qemu: Add Xen vIOMMU interrupt remapping function support no-reply
2017-07-07 0:02 ` Fam Zheng
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