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[PATCH 3/4] intel_iommu: allow Extended Interrupt Mode when using usersp
From: |
Bui Quang Minh |
Subject: |
[PATCH 3/4] intel_iommu: allow Extended Interrupt Mode when using userspace local APIC |
Date: |
Tue, 21 Feb 2023 23:04:59 +0700 |
As userspace local APIC now supports x2APIC, intel interrupt remapping
hardware can be set to EIM mode when userspace local APIC is used.
Signed-off-by: Bui Quang Minh <minhquangbui99@gmail.com>
---
hw/i386/intel_iommu.c | 11 -----------
1 file changed, 11 deletions(-)
diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c
index 98a5c304a7..228a944bce 100644
--- a/hw/i386/intel_iommu.c
+++ b/hw/i386/intel_iommu.c
@@ -4026,17 +4026,6 @@ static bool vtd_decide_config(IntelIOMMUState *s, Error
**errp)
&& x86_iommu_ir_supported(x86_iommu) ?
ON_OFF_AUTO_ON : ON_OFF_AUTO_OFF;
}
- if (s->intr_eim == ON_OFF_AUTO_ON && !s->buggy_eim) {
- if (!kvm_irqchip_is_split()) {
- error_setg(errp, "eim=on requires accel=kvm,kernel-irqchip=split");
- return false;
- }
- if (!kvm_enable_x2apic()) {
- error_setg(errp, "eim=on requires support on the KVM side"
- "(X2APIC_API, first shipped in v4.7)");
- return false;
- }
- }
/* Currently only address widths supported are 39 and 48 bits */
if ((s->aw_bits != VTD_HOST_AW_39BIT) &&
--
2.25.1