Hello Tobin, Just a high level question, why is this patch included in this patch series, i don't think you are supporting SEV-ES platform migration in this patch-set ?
Thanks, Ashish On Tue, Mar 02, 2021 at 03:48:27PM -0500, Tobin Feldman-Fitzthum wrote: > From: Ashish Kalra <ashish.ka...@amd.com> > > Mark the SEC GHCB page that is mapped as unencrypted in > ResetVector code in the hypervisor page encryption bitmap. > > Cc: Jordan Justen <jordan.l.jus...@intel.com> > Cc: Laszlo Ersek <ler...@redhat.com> > Cc: Ard Biesheuvel <ard.biesheu...@arm.com> > > Signed-off-by: Ashish Kalra <ashish.ka...@amd.com> > --- > OvmfPkg/PlatformPei/AmdSev.c | 10 ++++++++++ > 1 file changed, 10 insertions(+) > > diff --git a/OvmfPkg/PlatformPei/AmdSev.c b/OvmfPkg/PlatformPei/AmdSev.c > index dddffdebda..c72eeb37c5 100644 > --- a/OvmfPkg/PlatformPei/AmdSev.c > +++ b/OvmfPkg/PlatformPei/AmdSev.c > @@ -15,6 +15,7 @@ > #include <Library/HobLib.h> > #include <Library/MemEncryptSevLib.h> > #include <Library/MemoryAllocationLib.h> > +#include <Library/MemEncryptHypercallLib.h> > #include <Library/PcdLib.h> > #include <PiPei.h> > #include <Register/Amd/Msr.h> > @@ -52,6 +53,15 @@ AmdSevEsInitialize ( > PcdStatus = PcdSetBoolS (PcdSevEsIsEnabled, TRUE); > ASSERT_RETURN_ERROR (PcdStatus); > > + // > + // GHCB_BASE setup during reset-vector needs to be marked as > + // decrypted in the hypervisor page encryption bitmap. > + // > + SetMemoryEncDecHypercall3 (FixedPcdGet32 (PcdOvmfSecGhcbBase), > + EFI_SIZE_TO_PAGES(FixedPcdGet32 (PcdOvmfSecGhcbSize)), > + FALSE > + ); > + > // > // Allocate GHCB and per-CPU variable pages. > // Since the pages must survive across the UEFI to OS transition > -- > 2.20.1 > -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#72366): https://edk2.groups.io/g/devel/message/72366 Mute This Topic: https://groups.io/mt/81036364/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
