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From: Bernhard Beschow <shentey@gmail.com>
To: qemu-devel@nongnu.org
Cc: qemu-arm@nongnu.org, Paolo Bonzini <pbonzini@redhat.com>,
	Peter Maydell <peter.maydell@linaro.org>,
	Bernhard Beschow <shentey@gmail.com>
Subject: [PATCH v2 0/2] KVM Support for imx8mp-evk Machine
Date: Wed, 29 Oct 2025 15:23:09 +0100	[thread overview]
Message-ID: <20251029142311.2986-1-shentey@gmail.com> (raw)

This series adds KVM support to the imx8mp-evk machine, allowing it to run
guests with KVM acceleration. Inspiration was taken from the virt machine. This
required a device tree quirk for the guest clock to be kept in sync with the
host. Without this quirk the guest's clock would advance with factor <host
system counter> / 8Mhz.

Testing done:
* Run `qemu-system-aarch64 -M imx8mp-evk -accel kvm -smp 4` under
  `qemu-system-aarch64 -M virt,secure=on,virtualization=on,gic-version=4 \
  -cpu cortex-a72 -smp 4 -accel tcg` and `qemu-system-aarch64 -M imx8mp-evk \
  -accel tcg -smp 4". Observe that the `date` command reflects the host's date.

v2:
* Mention various tradeoffs in the board documentation (Peter)
* Accommodate for single-binary (Peter, Pierrick) by having CPU defaults

Bernhard Beschow (2):
  hw/arm/imx8mp-evk: Add KVM support
  hw/arm/imx8mp-evk: Fix guest time in KVM mode

 docs/system/arm/imx8mp-evk.rst | 18 ++++++++++++++++++
 hw/arm/fsl-imx8mp.c            | 33 ++++++++++++++++++++++++++++-----
 hw/arm/imx8mp-evk.c            | 21 +++++++++++++++++++++
 hw/arm/Kconfig                 |  3 ++-
 4 files changed, 69 insertions(+), 6 deletions(-)

-- 
2.51.2



             reply	other threads:[~2025-10-29 14:25 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-10-29 14:23 Bernhard Beschow [this message]
2025-10-29 14:23 ` [PATCH v2 1/2] hw/arm/imx8mp-evk: Add KVM support Bernhard Beschow
2025-10-29 14:23 ` [PATCH v2 2/2] hw/arm/imx8mp-evk: Fix guest time in KVM mode Bernhard Beschow
2025-10-31 14:03   ` Philippe Mathieu-Daudé
2025-10-31 11:16 ` [PATCH v2 0/2] KVM Support for imx8mp-evk Machine Bernhard Beschow
2025-10-31 16:57 ` Peter Maydell
2025-10-31 17:12   ` Peter Maydell
2025-10-31 18:18     ` Philippe Mathieu-Daudé
2025-10-31 18:30       ` Peter Maydell
2025-11-01 12:09         ` Bernhard Beschow

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