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RE: [PATCH 1/2] block:hdev: support BLKSECDISCARD

From: Qi, Yadong
Subject: RE: [PATCH 1/2] block:hdev: support BLKSECDISCARD
Date: Thu, 18 Nov 2021 01:13:32 +0000

> What is the use case for exposing secure erase in qemu?  The whole concept for
> a LBA based secure erase is generally not a very smart idea for flash based
> media..
Hi, Christoph
We got a user requirement: support BLKSECDISCARD in VM. Which is:
ioctl(BLKSECDISCARD) in guest -> qemu backend perform secure discard
on native block device accordingly.
This is a requirement to meet the security level of the project.
So I sent out these patches to see whether qemu could accept such changes.

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