163148b426
OBS-URL: https://build.opensuse.org/package/show/Virtualization/xen?expand=0&rev=87c8ac43897718b61dbcbca0296d6c2a
36 lines
1.5 KiB
Diff
36 lines
1.5 KiB
Diff
# HG changeset patch
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# User Keir Fraser <keir.fraser@citrix.com>
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# Date 1282817816 -3600
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# Node ID 3c4c3d48a8350994f4450314c6b759771c7ad4ef
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# Parent 3eb5127e46365242401e37df292fbe290fa0a974
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VT-d: Hardware require RH bit to be set in IRTE when delivery mode is LPR
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Signed-off-by: Sheng Yang <sheng@linux.intel.com>
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--- a/xen/drivers/passthrough/vtd/intremap.c
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+++ b/xen/drivers/passthrough/vtd/intremap.c
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@@ -318,9 +318,10 @@ static int ioapic_rte_to_remap_entry(str
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*(((u32 *)&new_rte) + 0) = value;
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new_ire.lo.fpd = 0;
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new_ire.lo.dm = new_rte.dest_mode;
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- new_ire.lo.rh = 0;
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new_ire.lo.tm = new_rte.trigger;
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new_ire.lo.dlm = new_rte.delivery_mode;
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+ /* Hardware require RH = 1 for LPR delivery mode */
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+ new_ire.lo.rh = (new_ire.lo.dlm == dest_LowestPrio);
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new_ire.lo.avail = 0;
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new_ire.lo.res_1 = 0;
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new_ire.lo.vector = new_rte.vector;
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@@ -630,9 +631,10 @@ static int msi_msg_to_remap_entry(
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/* Set interrupt remapping table entry */
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new_ire.lo.fpd = 0;
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new_ire.lo.dm = (msg->address_lo >> MSI_ADDR_DESTMODE_SHIFT) & 0x1;
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- new_ire.lo.rh = 0;
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new_ire.lo.tm = (msg->data >> MSI_DATA_TRIGGER_SHIFT) & 0x1;
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new_ire.lo.dlm = (msg->data >> MSI_DATA_DELIVERY_MODE_SHIFT) & 0x1;
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+ /* Hardware require RH = 1 for LPR delivery mode */
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+ new_ire.lo.rh = (new_ire.lo.dlm == dest_LowestPrio);
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new_ire.lo.avail = 0;
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new_ire.lo.res_1 = 0;
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new_ire.lo.vector = (msg->data >> MSI_DATA_VECTOR_SHIFT) &
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