x86/amd-iommu: Reimplement amd_iommu_flush_all_domains()

This patch reimplementes the amd_iommu_flush_all_domains
function to use the global protection domain list instead
of flushing every domain on every IOMMU.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>

1 files changed, 5 insertions, 3 deletions

diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index 0c4319b13014..5141f5608c5c 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -530,10 +530,12 @@ static void flush_all_domains_on_iommu(struct amd_iommu *iommu)
 
 void amd_iommu_flush_all_domains(void)
 {
-        struct amd_iommu *iommu;
+        struct protection_domain *domain;
 
-        for_each_iommu(iommu)
-                flush_all_domains_on_iommu(iommu);
+        list_for_each_entry(domain, &amd_iommu_pd_list, list) {
+                iommu_flush_tlb_pde(domain);
+                iommu_flush_complete(domain);
+        }
 }
 
 static void flush_all_devices_for_iommu(struct amd_iommu *iommu)