From 84f82ddcbb4ac4ed04c8675e85155329f23184f0 Mon Sep 17 00:00:00 2001 From: Peter Maydell Date: Tue, 14 Apr 2020 13:09:35 +0100 Subject: [PATCH] Deprecate KVM support for AArch32 The Linux kernel has dropped support for allowing 32-bit Arm systems to host KVM guests (kernel commit 541ad0150ca4aa663a2, which just landed upstream in the 5.7 merge window). Mark QEMU's support for this configuration as deprecated, so that we can delete that support code in 5.2. Signed-off-by: Peter Maydell Reviewed-by: Andrew Jones --- docs/system/deprecated.rst | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/docs/system/deprecated.rst b/docs/system/deprecated.rst index c633fe2bef..3142fac386 100644 --- a/docs/system/deprecated.rst +++ b/docs/system/deprecated.rst @@ -336,6 +336,14 @@ The ``compat`` property used to set backwards compatibility modes for the processor has been deprecated. The ``max-cpu-compat`` property of the ``pseries`` machine type should be used instead. +KVM guest support on 32-bit Arm hosts (since 5.0) +''''''''''''''''''''''''''''''''''''''''''''''''' + +The Linux kernel has dropped support for allowing 32-bit Arm systems +to host KVM guests as of the 5.7 kernel. Accordingly, QEMU is deprecating +its support for this configuration and will remove it in a future version. +Running 32-bit guests on a 64-bit Arm host remains supported. + System emulator devices -----------------------