Re: [edk2-devel] [RFC PATCH 04/28] OvmfPkg: Create a GHCB page for use during Sec phase

2019-08-21 Thread Lendacky, Thomas
On 8/21/19 9:25 AM, Laszlo Ersek via Groups.Io wrote: > On 08/19/19 23:35, Lendacky, Thomas wrote: >> From: Tom Lendacky >> >> A GHCB page is needed during the Sec phase, so this new page must be >> created. Since the GHCB must be marked as an un-encrypted, or shared, >> page, an additional

Re: [edk2-devel] [RFC PATCH 04/28] OvmfPkg: Create a GHCB page for use during Sec phase

2019-08-21 Thread Laszlo Ersek
On 08/19/19 23:35, Lendacky, Thomas wrote: > From: Tom Lendacky > > A GHCB page is needed during the Sec phase, so this new page must be > created. Since the GHCB must be marked as an un-encrypted, or shared, > page, an additional pagetable page is required so break down the 2MB > region where