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From: "Ayush Singh" <ayushdevel1325@gmail.com>
Date: Mon, 15 Aug 2022 18:58:49 +0530
Message-ID: <CA+Yfj7v1nuXWVeBjkzXnj=9sFyEDudMKGSar2p9Liw4NwvemNQ@mail.gmail.com>
Subject: [OVMF] Using EFI_TIMESTAMP_PROTOCOL in OVMF
To: edk2-devel-groups-io <devel@edk2.groups.io>
Cc: Michael Kubacki <mikuback@linux.microsoft.com>, 
	"Kinney, Michael D" <michael.d.kinney@intel.com>, 
	"Gaibusab, Jabeena B" <jabeena.b.gaibusab@intel.com>, Jiewen Yao <jiewen.yao@intel.com>
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Hello everyone. I wanted to ask if there was a device/parameter to have
`EFI_TIMESTAMP_PROTOCOL` in OVMF.

I would like to use this protocol to provide monotonic time in Rust (and
fall back to platform-specific registers in case the protocol is absent).
However, in the default qemu configuration, there is no handle supporting
`EFI_TIMESTAMP_PROTOCOL`.


For more information on what I am trying to implement, see
`std::time::Instant` [1] and the PR comment [2].


Yours Sincerely

Ayush Singh


[1]: https://doc.rust-lang.org/std/time/struct.Instant.html

[2]: https://github.com/rust-lang/rust/pull/100316#discussion_r945313267

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<div dir="ltr"><p>Hello everyone. I wanted to ask if there was a device/parameter to have `EFI_TIMESTAMP_PROTOCOL` in OVMF. <br>
</p>
<p>I would like to use this protocol to provide monotonic time in Rust (and fall back to platform-specific registers in case the 
protocol is absent). However, in the default qemu configuration, there 
is no handle supporting `EFI_TIMESTAMP_PROTOCOL`.</p>
<p><br>
</p>
<p>For more information on what I am trying to implement, see `std::time::Instant` [1] and the PR comment [2].<br>
</p>
<p><br>
</p>
<p>Yours Sincerely</p>
<p>Ayush Singh</p>
<p><br>
</p>
<p>[1]: <a href="https://doc.rust-lang.org/std/time/struct.Instant.html">https://doc.rust-lang.org/std/time/struct.Instant.html</a></p>
<p>[2]: <a href="https://github.com/rust-lang/rust/pull/100316#discussion_r945313267">https://github.com/rust-lang/rust/pull/100316#discussion_r945313267</a><br>
</p>
</div>

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