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[Qemu-devel] [Bug 602544] Re: [Feature request] Please implement ATA TRI

From: John Snow
Subject: [Qemu-devel] [Bug 602544] Re: [Feature request] Please implement ATA TRIM command
Date: Wed, 09 Nov 2016 21:00:30 -0000

This was indeed implemented through support for the DATA_SET_MANAGEMENT
command, in hw/ide/core.c. If you are having specific issues here in
2016, please file a more specific bug.

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  [Feature request] Please implement ATA TRIM command

Status in QEMU:

Bug description:
  Modern linuxes can use ATA TRIM command on block devices. It will be
  very nice if qemu translates this request to underlying block driver.

  1. So, if I use RAW image (on my case - lvm partition), TRIM inside qemu 
should do TRIM command on my readl HDD
  2. In the future, TRIM command inside qemu will free space inside qcow images.

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