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| author | Keir Fraser <keir.fraser@citrix.com> | 2010-03-11 08:09:58 +0000 |
|---|---|---|
| committer | Keir Fraser <keir.fraser@citrix.com> | 2010-03-11 08:09:58 +0000 |
| commit | 1803dc9556de65b65c870d6bbdd1acce9c1d8fe3 (patch) | |
| tree | ad13b1af7e21f62bf978749941227e3af6b8ee88 | |
| parent | 7a6d294eb96ce934efbd8c3ab517d9ddd03c0089 (diff) | |
| download | xen-1803dc9556de65b65c870d6bbdd1acce9c1d8fe3.tar.gz xen-1803dc9556de65b65c870d6bbdd1acce9c1d8fe3.tar.bz2 xen-1803dc9556de65b65c870d6bbdd1acce9c1d8fe3.zip | |
iommu: clear the iommu_* variables to 0 when iommu is not enabled.
With "iommu=0" xen parameter, the 3 iommu_* variables are still left
to the default value 1 -- this is misleading...
Signed-off-by: Dexuan Cui <dexuan.cui@intel.com>
| -rw-r--r-- | xen/drivers/passthrough/iommu.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/xen/drivers/passthrough/iommu.c b/xen/drivers/passthrough/iommu.c index 702d81afe9..ad988b2bcb 100644 --- a/xen/drivers/passthrough/iommu.c +++ b/xen/drivers/passthrough/iommu.c @@ -288,7 +288,12 @@ int iommu_setup(void) panic("IOMMU setup failed, crash Xen for security purpose!\n"); if ( !iommu_enabled ) + { iommu_pv_enabled = 0; + iommu_snoop = 0; + iommu_qinval = 0; + iommu_intremap = 0; + } printk("I/O virtualisation %sabled\n", iommu_enabled ? "en" : "dis"); if ( iommu_enabled ) printk("I/O virtualisation for PV guests %sabled\n", |