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iommu/vt-d: Remove the pasid present check in prq_event_thread

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PASID is not strictly needed when handling a PRQ event; remove the check
for the pasid present bit in the request. This change was not included
in the creation of prq.c to emphasize the change in capability checks
when handing PRQ events.

Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Joel Granados <joel.granados@kernel.org>
Link: https://lore.kernel.org/r/20241015-jag-iopfv8-v4-2-b696ca89ba29@kernel.org
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Klaus Jensen 2024-11-04 09:40:35 +08:00 • committed by Joerg Roedel
parent 4d54409576
commit 9f831c16c6
1 changed files with 2 additions and 8 deletions
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10
drivers/iommu/intel/prq.c
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@ -222,20 +222,14 @@ static irqreturn_t prq_event_thread(int irq, void *d)
req = &iommu->prq[head / sizeof(*req)];
address = (u64)req->addr << VTD_PAGE_SHIFT;
if (unlikely(!req->pasid_present)) {
pr_err("IOMMU: %s: Page request without PASID\n",
if (unlikely(!is_canonical_address(address))) {
pr_err("IOMMU: %s: Address is not canonical\n",
iommu->name);
bad_req:
handle_bad_prq_event(iommu, req, QI_RESP_INVALID);
goto prq_advance;
}
if (unlikely(!is_canonical_address(address))) {
pr_err("IOMMU: %s: Address is not canonical\n",
iommu->name);
goto bad_req;
}
if (unlikely(req->pm_req && (req->rd_req | req->wr_req))) {
pr_err("IOMMU: %s: Page request in Privilege Mode\n",
iommu->name);