audk/OvmfPkg/Library/BaseMemEncryptSevLib
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
..
Ia32 OvmfPkg/MemEncryptSevLib: add support to validate system RAM 2021-12-09 06:28:10 +00:00
X64 OvmfPkg/BaseMemEncryptSevLib: Use AmdSvsmSnpPvalidate() to validate pages 2024-04-17 20:04:41 +00:00
DxeMemEncryptSevLib.inf OvmfPkg/BaseMemEncryptSevLib: Use AmdSvsmSnpPvalidate() to validate pages 2024-04-17 20:04:41 +00:00
DxeMemEncryptSevLibInternal.c OvmfPkg/BaseMemEncryptLib: use the SEV_STATUS MSR value from workarea 2022-02-28 02:46:08 +00:00
PeiDxeMemEncryptSevLibInternal.c OvmfPkg/Include: remove QemuSmramSaveStateMap.h 2023-09-07 15:47:58 +00:00
PeiMemEncryptSevLib.inf OvmfPkg/BaseMemEncryptSevLib: Use AmdSvsmSnpPvalidate() to validate pages 2024-04-17 20:04:41 +00:00
PeiMemEncryptSevLibInternal.c OvmfPkg: Replace GUEST_TYPE with CC_GUEST_TYPE 2022-04-19 01:26:08 +00:00
SecMemEncryptSevLib.inf OvmfPkg/BaseMemEncryptSevLib: Use AmdSvsmSnpPvalidate() to validate pages 2024-04-17 20:04:41 +00:00
SecMemEncryptSevLibInternal.c OvmfPkg: Replace GUEST_TYPE with CC_GUEST_TYPE 2022-04-19 01:26:08 +00:00