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Re: [PATCH 0/3] x86/ept: force WB to foreign and grant mappings
- To: Jun Nakajima <jun.nakajima@xxxxxxxxx>, Kevin Tian <kevin.tian@xxxxxxxxx>
- From: Roger Pau Monné <roger.pau@xxxxxxxxxx>
- Date: Tue, 15 Jun 2021 15:37:55 +0200
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Ping?
This is missing an Ack or otherwise from the Intel maintainers.
Thanks, Roger.
On Fri, May 28, 2021 at 07:39:32PM +0200, Roger Pau Monne wrote:
>
> Hello,
>
> The aim of this series is to force the cache attribute of foreign and
> grant mappings to WB for HVM/PVH guests. This is required because those
> mappings will be likely be using unpopulated memory ranges in the p2m,
> and those are usually UC in the MTRR state.
>
> Having the guest set the correct MTRR attributes is also unlikely,
> because the number of MTRR ranges is finite.
>
> Roger Pau Monne (3):
> x86/mtrr: remove stale function prototype
> x86/mtrr: move epte_get_entry_emt to p2m-ept.c
> x86/ept: force WB cache attributes for grant and foreign maps
>
> xen/arch/x86/hvm/mtrr.c | 107 +---------------------
> xen/arch/x86/hvm/vmx/vmx.c | 6 +-
> xen/arch/x86/mm/p2m-ept.c | 145 ++++++++++++++++++++++++++++--
> xen/include/asm-x86/hvm/vmx/vmx.h | 2 +
> xen/include/asm-x86/mtrr.h | 7 +-
> 5 files changed, 147 insertions(+), 120 deletions(-)
>
> --
> 2.31.1
>
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