Hi Paul, From: Paul Durrant <[email protected]> Date: Wednesday, October 19, 2022 at 7:54 AM To: Garhwal, Vikram <[email protected]>, [email protected] <[email protected]> Cc: Stabellini, Stefano <[email protected]>, Michael S. Tsirkin <[email protected]>, Marcel Apfelbaum <[email protected]>, Paolo Bonzini <[email protected]>, Richard Henderson <[email protected]>, Eduardo Habkost <[email protected]>, Stefano Stabellini <[email protected]>, Anthony Perard <[email protected]>, open list:X86 Xen CPUs <[email protected]> Subject: Re: [PATCH v1 02/12] hw/i386/xen/: move xen-mapcache.c to hw/xen/ 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 <[email protected]> > Signed-off-by: Stefano Stabellini <[email protected]> > --- > 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?
Moving it to softmmu_ss breaks the build as it builds without XEN_CONFIG. I
think xen option in “softmmu_ss.add(when: ['CONFIG_XEN', xen], if_true: files”
is problem here. I see below error:
/sysemu/xen-mapcache.h:16:8: error: attempt to use poisoned "CONFIG_XEN"
#ifdef CONFIG_XEN
^
../hw/xen/xen-mapcache.c:106:6: error: redefinition of 'xen_map_cache_init'
void xen_map_cache_init(phys_offset_to_gaddr_t f, void *opaque)
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
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