Re: [PATCH V9 07/10] iommu/vt-d: Cache virtual command capability register

2020-02-21 Thread Jacob Pan
On Wed, 12 Feb 2020 14:00:22 +0100 Auger Eric wrote: > Hi Jacob, > > On 1/29/20 7:01 AM, Jacob Pan wrote: > > Virtual command registers are used in the guest only, to prevent > > vmexit cost, we cache the capability and store it during > > initialization. > > > > Signed-off-by: Jacob Pan > I

Re: [PATCH V9 07/10] iommu/vt-d: Cache virtual command capability register

2020-02-12 Thread Auger Eric
Hi Jacob, On 1/29/20 7:01 AM, Jacob Pan wrote: > Virtual command registers are used in the guest only, to prevent > vmexit cost, we cache the capability and store it during initialization. > > Signed-off-by: Jacob Pan I sent my R-b in https://lkml.org/lkml/2019/11/8/228 Also Baolo did. Do I miss

[PATCH V9 07/10] iommu/vt-d: Cache virtual command capability register

2020-01-28 Thread Jacob Pan
Virtual command registers are used in the guest only, to prevent vmexit cost, we cache the capability and store it during initialization. Signed-off-by: Jacob Pan --- drivers/iommu/dmar.c| 1 + include/linux/intel-iommu.h | 5 + 2 files changed, 6 insertions(+) diff --git a/drivers/