ShuriZma
/
xemu
mirror of https://github.com/xemu-project/xemu.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

intel_iommu: set IR bit for ECAP register 

Enable IR in IOMMU Extended Capability register.

Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Peter Xu 2016-07-14 13:56:16 +08:00 committed by Michael S. Tsirkin
parent b79104722f
commit d54bd7f80a
2 changed files with 8 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
hw/i386/intel_iommu.c
View File

@ -1956,6 +1956,8 @@ VTDAddressSpace *vtd_find_add_as(IntelIOMMUState *s, PCIBus *bus, int devfn)
*/ */
static void vtd_init(IntelIOMMUState *s) static void vtd_init(IntelIOMMUState *s)
{ {
X86IOMMUState *x86_iommu = X86_IOMMU_DEVICE(s);
memset(s->csr, 0, DMAR_REG_SIZE); memset(s->csr, 0, DMAR_REG_SIZE);
memset(s->wmask, 0, DMAR_REG_SIZE); memset(s->wmask, 0, DMAR_REG_SIZE);
memset(s->w1cmask, 0, DMAR_REG_SIZE); memset(s->w1cmask, 0, DMAR_REG_SIZE);
@ -1977,6 +1979,10 @@ static void vtd_init(IntelIOMMUState *s)
VTD_CAP_SAGAW | VTD_CAP_MAMV | VTD_CAP_PSI | VTD_CAP_SLLPS; VTD_CAP_SAGAW | VTD_CAP_MAMV | VTD_CAP_PSI | VTD_CAP_SLLPS;
s->ecap = VTD_ECAP_QI | VTD_ECAP_IRO; s->ecap = VTD_ECAP_QI | VTD_ECAP_IRO;
if (x86_iommu->intr_supported) {
s->ecap |= VTD_ECAP_IR;
}
vtd_reset_context_cache(s); vtd_reset_context_cache(s);
vtd_reset_iotlb(s); vtd_reset_iotlb(s);

2
hw/i386/intel_iommu_internal.h
View File

@ -176,6 +176,8 @@
/* (offset >> 4) << 8 */ /* (offset >> 4) << 8 */
#define VTD_ECAP_IRO (DMAR_IOTLB_REG_OFFSET << 4) #define VTD_ECAP_IRO (DMAR_IOTLB_REG_OFFSET << 4)
#define VTD_ECAP_QI (1ULL << 1) #define VTD_ECAP_QI (1ULL << 1)
/* Interrupt Remapping support */
#define VTD_ECAP_IR (1ULL << 3)
/* CAP_REG */ /* CAP_REG */
/* (offset >> 4) << 24 */ /* (offset >> 4) << 24 */