averello/linux-stable-mirror
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2026-07-08 18:13:59 +02:00
Code Issues Packages Projects Releases Wiki Activity

iommu/amd: Return an error if vCPU affinity is set for non-vCPU IRTE

Browse Source 
[ Upstream commit 07172206a2 ]

Return -EINVAL instead of success if amd_ir_set_vcpu_affinity() is
invoked without use_vapic; lying to KVM about whether or not the IRTE was
configured to post IRQs is all kinds of bad.

Fixes: d98de49a53 ("iommu/amd: Enable vAPIC interrupt remapping mode by default")
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-ID: <20250404193923.1413163-6-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Sean Christopherson
2025-04-04 12:38:20 -07:00
committed by Greg Kroah-Hartman
parent 11bccb054c
commit 9e75c93472
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/iommu/amd/iommu.c
+1 -1
View File
@@ -3589,7 +3589,7 @@ static int amd_ir_set_vcpu_affinity(struct irq_data *data, void *vcpu_info)
* we should not modify the IRTE
*/
if (!dev_data || !dev_data->use_vapic)
return 0;
return -EINVAL;
ir_data->cfg = irqd_cfg(data);
pi_data->ir_data = ir_data;