From: Jan Beulich Date: Tue, 22 Sep 2015 10:48:43 +0000 (+0200) Subject: IOMMU: complete/correct comment explaining "iommu=" sub-options X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~2515 X-Git-Url: https://dgit.raspbian.org/%22http:/www.example.com/cgi/%22https:/%22bookmarks:///%22http:/www.example.com/cgi/%22https:/%22bookmarks:/?a=commitdiff_plain;h=5790ef286377fae5682367ffe361bc35662a2ed2;p=xen.git IOMMU: complete/correct comment explaining "iommu=" sub-options Signed-off-by: Jan Beulich Reviewed-by: Andrew Cooper --- diff --git a/xen/drivers/passthrough/iommu.c b/xen/drivers/passthrough/iommu.c index d513773347..aee9d827c0 100644 --- a/xen/drivers/passthrough/iommu.c +++ b/xen/drivers/passthrough/iommu.c @@ -31,13 +31,19 @@ static void iommu_dump_p2m_table(unsigned char key); * * off|no|false|disable Disable IOMMU (default) * force|required Don't boot unless IOMMU is enabled + * no-intremap Disable interrupt remapping + * verbose Be more verbose + * debug Enable debugging messages and checks * workaround_bios_bug Workaround some bios issue to still enable - VT-d, don't guarantee security + * VT-d, don't guarantee security * dom0-passthrough No DMA translation at all for Dom0 * dom0-strict No 1:1 memory mapping for Dom0 + * no-sharept Don't share VT-d and EPT page tables * no-snoop Disable VT-d Snoop Control * no-qinval Disable VT-d Queued Invalidation - * no-intremap Disable VT-d Interrupt Remapping + * no-igfx Disable VT-d for IGD devices (insecure) + * no-amd-iommu-perdev-intremap Don't use per-device interrupt remapping + * tables (insecure) */ custom_param("iommu", parse_iommu_param); bool_t __initdata iommu_enable = 1;