Re: [PATCH v1 02/12] hw/i386/xen/: move xen-mapcache.c to hw/xen/

[Paul Durrant <xadimgnik@xxxxxxxxx>]

On 15/10/2022 06:07, Vikram Garhwal wrote:
> xen-mapcache.c contains common functions which can be used for enabling Xen on
> aarch64 with IOREQ handling. Moving it out from hw/i386/xen to hw/xen to make it
> accessible for both aarch64 and x86.
>
> Signed-off-by: Vikram Garhwal <vikram.garhwal@xxxxxxx>
> Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxx>
> ---
>   hw/i386/meson.build              | 1 +
>   hw/i386/xen/meson.build          | 1 -
>   hw/i386/xen/trace-events         | 5 -----
>   hw/xen/meson.build               | 4 ++++
>   hw/xen/trace-events              | 5 +++++
>   hw/{i386 => }/xen/xen-mapcache.c | 0
>   6 files changed, 10 insertions(+), 6 deletions(-)
>   rename hw/{i386 => }/xen/xen-mapcache.c (100%)
>
> diff --git a/hw/i386/meson.build b/hw/i386/meson.build
> index 213e2e82b3..cfdbfdcbcb 100644
> --- a/hw/i386/meson.build
> +++ b/hw/i386/meson.build
> @@ -33,5 +33,6 @@ subdir('kvm')
>   subdir('xen')
>   
>   i386_ss.add_all(xenpv_ss)
> +i386_ss.add_all(xen_ss)
>   
>   hw_arch += {'i386': i386_ss}
> diff --git a/hw/i386/xen/meson.build b/hw/i386/xen/meson.build
> index be84130300..2fcc46e6ca 100644
> --- a/hw/i386/xen/meson.build
> +++ b/hw/i386/xen/meson.build
> @@ -1,6 +1,5 @@
>   i386_ss.add(when: 'CONFIG_XEN', if_true: files(
>     'xen-hvm.c',
> -  'xen-mapcache.c',
>     'xen_apic.c',
>     'xen_platform.c',
>     'xen_pvdevice.c',
> diff --git a/hw/i386/xen/trace-events b/hw/i386/xen/trace-events
> index 5d6be61090..a0c89d91c4 100644
> --- a/hw/i386/xen/trace-events
> +++ b/hw/i386/xen/trace-events
> @@ -21,8 +21,3 @@ xen_map_resource_ioreq(uint32_t id, void *addr) "id: %u addr: 
> %p"
>   cpu_ioreq_config_read(void *req, uint32_t sbdf, uint32_t reg, uint32_t size, uint32_t 
> data) "I/O=%p sbdf=0x%x reg=%u size=%u data=0x%x"
>   cpu_ioreq_config_write(void *req, uint32_t sbdf, uint32_t reg, uint32_t size, uint32_t 
> data) "I/O=%p sbdf=0x%x reg=%u size=%u data=0x%x"
>   
> -# xen-mapcache.c
> -xen_map_cache(uint64_t phys_addr) "want 0x%"PRIx64
> -xen_remap_bucket(uint64_t index) "index 0x%"PRIx64
> -xen_map_cache_return(void* ptr) "%p"
> -
> diff --git a/hw/xen/meson.build b/hw/xen/meson.build
> index ae0ace3046..19d0637c46 100644
> --- a/hw/xen/meson.build
> +++ b/hw/xen/meson.build
> @@ -22,3 +22,7 @@ else
>   endif
>   
>   specific_ss.add_all(when: ['CONFIG_XEN', xen], if_true: xen_specific_ss)
> +
> +xen_ss = ss.source_set()
> +
> +xen_ss.add(when: 'CONFIG_XEN', if_true: files('xen-mapcache.c'))
Curious as to why you couldn't just add this to the softmmu_ss list above?

  Paul

> diff --git a/hw/xen/trace-events b/hw/xen/trace-events
> index 3da3fd8348..2c8f238f42 100644
> --- a/hw/xen/trace-events
> +++ b/hw/xen/trace-events
> @@ -41,3 +41,8 @@ xs_node_vprintf(char *path, char *value) "%s %s"
>   xs_node_vscanf(char *path, char *value) "%s %s"
>   xs_node_watch(char *path) "%s"
>   xs_node_unwatch(char *path) "%s"
> +
> +# xen-mapcache.c
> +xen_map_cache(uint64_t phys_addr) "want 0x%"PRIx64
> +xen_remap_bucket(uint64_t index) "index 0x%"PRIx64
> +xen_map_cache_return(void* ptr) "%p"
> diff --git a/hw/i386/xen/xen-mapcache.c b/hw/xen/xen-mapcache.c
> similarity index 100%
> rename from hw/i386/xen/xen-mapcache.c
> rename to hw/xen/xen-mapcache.c