tree 6b5595ecad836d66e4102bfb5217c84ad1ecce1f
parent f1d33f55c47dfdaf8daacd618588ad3ae4c452d1
author Peter Maydell <peter.maydell@linaro.org> 1664537904 +0100
committer Peter Maydell <peter.maydell@linaro.org> 1665409943 +0100

target/arm/kvm: Retry KVM_CREATE_VM call if it fails EINTR

Occasionally the KVM_CREATE_VM ioctl can return EINTR, even though
there is no pending signal to be taken. In commit 94ccff13382055
we added a retry-on-EINTR loop to the KVM_CREATE_VM call in the
generic KVM code. Adopt the same approach for the use of the
ioctl in the Arm-specific KVM code (where we use it to create a
scratch VM for probing for various things).

For more information, see the mailing list thread:
https://lore.kernel.org/qemu-devel/8735e0s1zw.wl-maz@kernel.org/

Reported-by: Vitaly Chikunov <vt@altlinux.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Vitaly Chikunov <vt@altlinux.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Message-id: 20220930113824.1933293-1-peter.maydell@linaro.org