search for: spec_compliant_op

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2020 Apr 30
0
[RFC/PATCH 1/1] virtio: Introduce MMIO ops
...> +#define virtio_writeb(val, a) mmio_ops->mmio_writeb((val), (a)) > +#define virtio_writew(val, a) mmio_ops->mmio_writew((val), (a)) > +#define virtio_writel(val, a) mmio_ops->mmio_writel((val), (a)) How exactly are these ops hooked up? I'm envisaging something like: ops = spec_compliant_ops; [...] if (firmware_says_hypervisor_is_buggy()) ops = magic_qcom_ops; am I wrong? > +int register_virtio_mmio_ops(struct virtio_mmio_ops *ops) > +{ > + pr_info("Registered %s as mmio ops\n", ops->name); > + mmio_ops = ops; Not looking good, and really defeats the po...
2020 Apr 30
0
[RFC/PATCH 1/1] virtio: Introduce MMIO ops
...((val), (a)) > > > +#define virtio_writew(val, a) mmio_ops->mmio_writew((val), (a)) > > > +#define virtio_writel(val, a) mmio_ops->mmio_writel((val), (a)) > > > > How exactly are these ops hooked up? I'm envisaging something like: > > > > ops = spec_compliant_ops; > > [...] > > if (firmware_says_hypervisor_is_buggy()) > > ops = magic_qcom_ops; > > > > am I wrong? > > If CONFIG_VIRTIO_MMIO_OPS is defined, then I expect this to be unconditionally > set to 'magic_qcom_ops' that uses hypervisor-supported int...