Re: [edk2-devel] [RFC PATCH v2 06/44] OvmfPkg: Create a GHCB page for use during Sec phase

2019-09-25 Thread Lendacky, Thomas
On 9/25/19 3:09 AM, Laszlo Ersek wrote: > On 09/19/19 21:52, Lendacky, Thomas wrote: >> From: Tom Lendacky >> >> BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=2198 >> >> A GHCB page is needed during the Sec phase, so this new page must be >> created. Since the GHCB must be marked as an

Re: [edk2-devel] [RFC PATCH v2 06/44] OvmfPkg: Create a GHCB page for use during Sec phase

2019-09-25 Thread Laszlo Ersek
On 09/19/19 21:52, Lendacky, Thomas wrote: > From: Tom Lendacky > > BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=2198 > > 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

[edk2-devel] [RFC PATCH v2 06/44] OvmfPkg: Create a GHCB page for use during Sec phase

2019-09-19 Thread Lendacky, Thomas
From: Tom Lendacky BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=2198 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 to break down the 2MB region