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FIXME: temporarily disable TPM2 passthrough 

On some boards it is seen that the log area of the physical TPM2 is
programmed to be 0. If TPM2 is passed through to a pre-launched VM in such
cases, a piece of memory starting from GPA 0 will be unmapped from the
Service VM, leading to Service VM crash due to early BIOS corruption
checks.

This patch temporarily disables TPM2 passthrough on such platforms. A
thorough fix should be proposed later to gracefully handle such cases.

Tracked-On: #6288
Signed-off-by: Junjie Mao <junjie.mao@intel.com>
This commit is contained in:
Junjie Mao 2021-08-17 16:22:46 +08:00 committed by wenlingz
parent 668ae81048
commit cd31310f65
1 changed files with 1 additions and 1 deletions
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2
misc/config_tools/data/ehl-crb-b/hybrid_rt.xml
View File

@ -130,7 +130,7 @@
<pci_dev>00:1d.2 Ethernet controller: Intel Corporation Device 4bb0</pci_dev>
</pci_devs>
<mmio_resources>
<TPM2>y</TPM2>
<TPM2>n</TPM2>
</mmio_resources>
</vm>
<vm id="1">