On 05/17/18 09:54, Laszlo Ersek wrote: > On 05/15/18 14:30, marcandre.lur...@redhat.com wrote: >> From: Marc-André Lureau <marcandre.lur...@redhat.com> >> >> Hi, >> >> The following series adds basic TPM PPI 1.3 support for OVMF-on-QEMU >> with TPM2 (I haven't tested TPM1, for lack of interest). >> >> PPI test runs successfully with Windows 10 WHLK, despite the limited >> number of supported funcions (tpm2_ppi_funcs table, in particular, no >> function allows to manipulate Tcg2PhysicalPresenceFlags) >> >> The way it works is relatively simple: a memory region is allocated by >> QEMU to save PPI related variables. An ACPI interface is exposed by >> QEMU to let the guest manipulate those. At boot, ovmf processes and >> updates the PPI qemu region and request variables. >> >> I build edk2 with: >> >> $ build -DTPM2_ENABLE -DSECURE_BOOT_ENABLE > > Is -DSECURE_BOOT_ENABLE necessary for *building* with -DTPM2_ENABLE? If > that's the case, we should update the DSC files; users building OVMF > from source shouldn't have to care about "-D" inter-dependencies, if we > can manage that somehow. > > If -DSECURE_BOOT_ENABLE is only there because otherwise a guest OS > doesn't really make use of -DTPM2_ENABLE either, that's different. In > that case, it's fine to allow building OVMF with TPM2 support but > without SB support.
Oops, almost missed another important omission: in every commit message, please insert the following line just above your S-o-b: Contributed-under: TianoCore Contribution Agreement 1.1 We cannot take patches without that line. You can read about it in the "Contributions.txt" file, in the project root directory. Thanks! Laszlo
