Messages in this thread | | | Date | Fri, 1 May 2020 13:21:57 +0200 | From | Joerg Roedel <> | Subject | Re: [PATCH] iommu/amd: Fix legacy interrupt remapping for x2APIC-enabled system |
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On Wed, Apr 22, 2020 at 08:30:02AM -0500, Suravee Suthikulpanit wrote: > Currently, system fails to boot because the legacy interrupt remapping > mode does not enable 128-bit IRTE (GA), which is required for x2APIC > support. > > Fix by using AMD_IOMMU_GUEST_IR_LEGACY_GA mode when booting with > kernel option amd_iommu_intr=legacy instead. The initialization > logic will check GASup and automatically fallback to using > AMD_IOMMU_GUEST_IR_LEGACY if GA mode is not supported. > > Fixes: 3928aa3f5775 ("iommu/amd: Detect and enable guest vAPIC support") > Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> > --- > drivers/iommu/amd_iommu_init.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-)
Applied for v5.7, thanks Suravee.
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