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| author | Keir Fraser <keir.fraser@citrix.com> | 2010-08-26 11:16:56 +0100 |
|---|---|---|
| committer | Keir Fraser <keir.fraser@citrix.com> | 2010-08-26 11:16:56 +0100 |
| commit | 8de22c95b4ed0503fd8545704a34f542befd4e70 (patch) | |
| tree | 1b48e1ecf57f4d050a6d5aa382c0bf78c1242438 | |
| parent | 128e862878c0ae8f96ed3aee7649a32e659bf0b9 (diff) | |
| download | xen-8de22c95b4ed0503fd8545704a34f542befd4e70.tar.gz xen-8de22c95b4ed0503fd8545704a34f542befd4e70.tar.bz2 xen-8de22c95b4ed0503fd8545704a34f542befd4e70.zip | |
VT-d: Hardware require RH bit to be set in IRTE when delivery mode is LPR
Signed-off-by: Sheng Yang <sheng@linux.intel.com>
| -rw-r--r-- | xen/drivers/passthrough/vtd/intremap.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/xen/drivers/passthrough/vtd/intremap.c b/xen/drivers/passthrough/vtd/intremap.c index 2ad4a9b088..1ac7e52316 100644 --- a/xen/drivers/passthrough/vtd/intremap.c +++ b/xen/drivers/passthrough/vtd/intremap.c @@ -320,9 +320,10 @@ static int ioapic_rte_to_remap_entry(struct iommu *iommu, *(((u32 *)&new_rte) + 0) = value; new_ire.lo.fpd = 0; new_ire.lo.dm = new_rte.dest_mode; - new_ire.lo.rh = 0; new_ire.lo.tm = new_rte.trigger; new_ire.lo.dlm = new_rte.delivery_mode; + /* Hardware require RH = 1 for LPR delivery mode */ + new_ire.lo.rh = (new_ire.lo.dlm == dest_LowestPrio); new_ire.lo.avail = 0; new_ire.lo.res_1 = 0; new_ire.lo.vector = new_rte.vector; @@ -632,9 +633,10 @@ static int msi_msg_to_remap_entry( /* Set interrupt remapping table entry */ new_ire.lo.fpd = 0; new_ire.lo.dm = (msg->address_lo >> MSI_ADDR_DESTMODE_SHIFT) & 0x1; - new_ire.lo.rh = 0; new_ire.lo.tm = (msg->data >> MSI_DATA_TRIGGER_SHIFT) & 0x1; new_ire.lo.dlm = (msg->data >> MSI_DATA_DELIVERY_MODE_SHIFT) & 0x1; + /* Hardware require RH = 1 for LPR delivery mode */ + new_ire.lo.rh = (new_ire.lo.dlm == dest_LowestPrio); new_ire.lo.avail = 0; new_ire.lo.res_1 = 0; new_ire.lo.vector = (msg->data >> MSI_DATA_VECTOR_SHIFT) & |