Tom Lendacky f6bf37c171 OvmfPkg/BaseMemEncryptSevLib: Use AmdSvsmSnpPvalidate() to validate pages ...

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4654

The PVALIDATE instruction is used to change the SNP validation of a page,
but that can only be done when running at VMPL0. To prepare for running at
a less priviledged VMPL, use the AmdSvsmLib library API to perform the
PVALIDATE. The AmdSvsmLib library will perform the proper operation on
behalf of the caller.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Erdem Aktas <erdemaktas@google.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Michael Roth <michael.roth@amd.com>
Cc: Min Xu <min.m.xu@intel.com>
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>

2024-04-17 20:04:41 +00:00

..

DxeSnpSystemRamValidate.c

OvmfPkg/BaseMemEncryptSevLib: Re-organize page state change support

2024-04-17 18:30:03 +00:00

MemEncryptSevLib.c

OvmfPkg: Apply uncrustify changes

2021-12-07 17:24:28 +00:00

PeiDxeVirtualMemory.c

OvmfPkg/BaseMemEncryptSevLib: Re-organize page state change support

2024-04-17 18:30:03 +00:00

PeiSnpSystemRamValidate.c

OvmfPkg/BaseMemEncryptSevLib: Re-organize page state change support

2024-04-17 18:30:03 +00:00

SecSnpSystemRamValidate.c

OvmfPkg/BaseMemEncryptSevLib: Re-organize page state change support

2024-04-17 18:30:03 +00:00

SecVirtualMemory.c

OvmfPkg: Apply uncrustify changes

2021-12-07 17:24:28 +00:00

SnpPageStateChange.h

OvmfPkg/BaseMemEncryptSevLib: Re-organize page state change support

2024-04-17 18:30:03 +00:00

SnpPageStateChangeInternal.c

OvmfPkg/BaseMemEncryptSevLib: Use AmdSvsmSnpPvalidate() to validate pages

2024-04-17 20:04:41 +00:00

VirtualMemory.c

OvmfPkg: Apply uncrustify changes

2021-12-07 17:24:28 +00:00

VirtualMemory.h

OvmfPkg/MemEncryptSevLib: add support to validate > 4GB memory in PEI phase

2021-12-09 06:28:10 +00:00