On Tue, Apr 21, 2020 at 12:44:49PM -0500, Tom Lendacky wrote: > To provide support for SEV-ES, the hypervisor must provide an area of > memory to the PSP. Once this Trusted Memory Region (TMR) is provided to > the PSP, the contents of this area of memory are no longer available to > the x86. > > Update the PSP driver to allocate a 1MB region for the TMR that is 1MB > aligned and then provide it to the PSP through the SEV INIT command. > > Signed-off-by: Tom Lendacky <thomas.lendacky@xxxxxxx> > > --- > > Changes since v1: > - No need to over-allocate the memory area to obtain the required > alignment when using the page allocator. Reviewed-by: Joerg Roedel <jroedel@xxxxxxx>
