diff options
| author | Joerg Roedel <joerg.roedel@amd.com> | 2009-09-02 15:41:59 +0200 |
|---|---|---|
| committer | Joerg Roedel <joerg.roedel@amd.com> | 2009-09-03 16:03:43 +0200 |
| commit | 6a0dbcbe4e612fbc9d73cd4dde8ebef19295058a (patch) | |
| tree | 12211af09fb4ef74fb5a58f078cf0b60693dc352 /arch/x86/kernel/amd_iommu.c | |
| parent | a6d41a4027b758a9473197a78fab45afb31003aa (diff) | |
x86/amd-iommu: Add a gneric version of amd_iommu_flush_all_devices
This patch adds a generic variant of
amd_iommu_flush_all_devices function which flushes only the
DTEs for a given protection domain.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'arch/x86/kernel/amd_iommu.c')
| -rw-r--r-- | arch/x86/kernel/amd_iommu.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c index 4a54366d422..5265dd17eb5 100644 --- a/arch/x86/kernel/amd_iommu.c +++ b/arch/x86/kernel/amd_iommu.c @@ -481,13 +481,14 @@ void amd_iommu_flush_all_domains(void) } } -void amd_iommu_flush_all_devices(void) +static void flush_devices_by_domain(struct protection_domain *domain) { struct amd_iommu *iommu; int i; for (i = 0; i <= amd_iommu_last_bdf; ++i) { - if (amd_iommu_pd_table[i] == NULL) + if ((domain == NULL && amd_iommu_pd_table[i] == NULL) || + (amd_iommu_pd_table[i] != domain)) continue; iommu = amd_iommu_rlookup_table[i]; @@ -499,6 +500,11 @@ void amd_iommu_flush_all_devices(void) } } +void amd_iommu_flush_all_devices(void) +{ + flush_devices_by_domain(NULL); +} + /**************************************************************************** * * The functions below are used the create the page table mappings for |