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xen-devel
RE: [Xen-devel] [PATCH 1/2] Xen: enabling emulated MSI injection
> From: Wei Liu
> Sent: Thursday, May 26, 2011 11:09 AM
>
> commit 176dc2a26b4b9dd0fe30fab3b168722766218245
> Author: Wei Liu <liuw@xxxxxxxxx>
> Date: Thu May 26 10:23:01 2011 +0800
>
> x86: Add a new operation in HVMOP to inject emulated MSI.
>
> The original vmsi_deliver is renamed to vmsi_deliver_irq. New
in your patch you mean vmsi_deliver_pirq which is inconsistent.
> vmsi_deliver is dedicated to the actually delivering.
>
> Signed-off-by: Wei Liu <liuw@xxxxxxxxx>
>
> --- a/xen/include/public/hvm/hvm_op.h
> +++ b/xen/include/public/hvm/hvm_op.h
> @@ -82,11 +82,24 @@ typedef enum {
> HVMMEM_mmio_dm, /* Reads and write go to the device
> model */
> } hvmmem_type_t;
>
> +/* MSI injection for emulated devices */
> +#define HVMOP_inj_msi 6
> +struct xen_hvm_inj_msi {
> + /* Domain to be injected */
> + domid_t domid;
> + /* Address (0xfeeXXXXX) */
> + uint64_t addr;
> + /* Data -- lower 32 bits */
> + uint32_t data;
> +};
> +typedef struct xen_hvm_inj_msi xen_hvm_inj_msi_t;
> +DEFINE_XEN_GUEST_HANDLE(xen_hvm_inj_msi_t);
> +
> /* Following tools-only interfaces may change in future. */
> #if defined(__XEN__) || defined(__XEN_TOOLS__)
>
> /* Track dirty VRAM. */
> -#define HVMOP_track_dirty_vram 6
> +#define HVMOP_track_dirty_vram 7
> struct xen_hvm_track_dirty_vram {
> /* Domain to be tracked. */
> domid_t domid;
This breaks backward API compatibility.
Thanks
Kevin
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