diff options
| author | Peter Xu <peterx@redhat.com> | 2018-09-29 11:36:14 +0800 |
|---|---|---|
| committer | Michael Roth <mdroth@linux.vnet.ibm.com> | 2019-03-27 01:07:19 -0500 |
| commit | 0a818f87f7d1869478302a5ccc54c8df957ae3be (patch) | |
| tree | cc1416ff653e7e4748326465d634232ca1413910 /hw/i386 | |
| parent | 92c7eec10926eaff161a91624f399b4afe6cb273 (diff) | |
intel_iommu: introduce vtd_reset_caches()
Provide the function and use it in vtd_init(). Used to reset both
context entry cache and iotlb cache for the whole IOMMU unit.
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit 06aba4ca52fd2c8718b8ba486f22f0aa7c99ed55)
*functional dep. for 2cc9ddcceb
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Diffstat (limited to 'hw/i386')
| -rw-r--r-- | hw/i386/intel_iommu.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c index 0a8cd4e9cc..f66e93ed2c 100644 --- a/hw/i386/intel_iommu.c +++ b/hw/i386/intel_iommu.c @@ -227,6 +227,14 @@ static void vtd_reset_iotlb(IntelIOMMUState *s) vtd_iommu_unlock(s); } +static void vtd_reset_caches(IntelIOMMUState *s) +{ + vtd_iommu_lock(s); + vtd_reset_iotlb_locked(s); + vtd_reset_context_cache_locked(s); + vtd_iommu_unlock(s); +} + static uint64_t vtd_get_iotlb_key(uint64_t gfn, uint16_t source_id, uint32_t level) { @@ -3123,10 +3131,7 @@ static void vtd_init(IntelIOMMUState *s) s->cap |= VTD_CAP_CM; } - vtd_iommu_lock(s); - vtd_reset_context_cache_locked(s); - vtd_reset_iotlb_locked(s); - vtd_iommu_unlock(s); + vtd_reset_caches(s); /* Define registers with default values and bit semantics */ vtd_define_long(s, DMAR_VER_REG, 0x10UL, 0, 0); |