Alistair, On Mon, Jul 13, 2026 at 7:11 AM Alistair Francis <[email protected]> wrote:
> On Fri, Jul 10, 2026 at 10:23 PM Subrahmanya Lingappa > <[email protected]> wrote: > > > > From: Subrahmanya Lingappa <[email protected]> > > > > Add a meson option and config probe for librpmi so RISC-V machines can > > opt into RPMI support when the library is available. Keep the dependency > > optional so default builds without librpmi continue to work. > > > > Signed-off-by: Subrahmanya Lingappa < > [email protected]> > > Can we add some documentation of how get librpmi support to work? Do I > just apt/dnf/pacman/apk install it? Do I need a certain version? > > Yes, good point. The v2 docs only said that librpmi must be installed so pkg-config can find librpmi.pc, which is too terse. I will expand the docs to state that QEMU requires librpmi 1.0.0 or newer, show source install steps from the upstream librpmi repo, and mention the Debian/RPM package targets provided by librpmi, while it's also documented in detail within librpmi repo. Subrahmanya Alistair > > > --- > > Kconfig.host | 3 +++ > > meson.build | 14 ++++++++++++++ > > meson_options.txt | 2 ++ > > scripts/meson-buildoptions.sh | 3 +++ > > 4 files changed, 22 insertions(+) > > > > diff --git a/Kconfig.host b/Kconfig.host > > index 933425c74b..6f98dadb2e 100644 > > --- a/Kconfig.host > > +++ b/Kconfig.host > > @@ -8,6 +8,9 @@ config LINUX > > config LIBCBOR > > bool > > > > +config LIBRPMI > > + bool > > + > > config GNUTLS > > bool > > > > diff --git a/meson.build b/meson.build > > index 19e123423b..103b4649b8 100644 > > --- a/meson.build > > +++ b/meson.build > > @@ -2005,6 +2005,17 @@ if lzo.found() and not cc.links(''' > > endif > > endif > > > > +librpmi = not_found > > +if not get_option('librpmi').auto() or have_system > > + librpmi = dependency('librpmi', required: get_option('librpmi'), > > + method: 'pkg-config') > > + if librpmi.found() and not cc.has_header_symbol('librpmi.h', > > + > 'rpmi_service_group_logging_create', > > + dependencies: librpmi) > > + error('librpmi support requires the RPMI logging service group API') > > + endif > > +endif > > + > > numa = not_found > > if not get_option('numa').auto() or have_system or have_tools > > numa = cc.find_library('numa', has_headers: ['numa.h'], > > @@ -2427,6 +2438,7 @@ config_host_data.set('CONFIG_LINUX', host_os == > 'linux') > > config_host_data.set('CONFIG_POSIX', host_os != 'windows') > > config_host_data.set('CONFIG_WIN32', host_os == 'windows') > > config_host_data.set('CONFIG_LZO', lzo.found()) > > +config_host_data.set('CONFIG_LIBRPMI', librpmi.found()) > > config_host_data.set('CONFIG_MPATH', mpathpersist.found()) > > config_host_data.set('CONFIG_BLKIO', blkio.found()) > > if blkio.found() > > @@ -3258,6 +3270,7 @@ host_kconfig = \ > > (multiprocess_allowed ? ['CONFIG_MULTIPROCESS_ALLOWED=y'] : []) + \ > > (vfio_user_server_allowed ? ['CONFIG_VFIO_USER_SERVER_ALLOWED=y'] : > []) + \ > > (hv_balloon ? ['CONFIG_HV_BALLOON_POSSIBLE=y'] : []) + \ > > + (librpmi.found() ? ['CONFIG_LIBRPMI=y'] : []) + \ > > (have_rust ? ['CONFIG_HAVE_RUST=y'] : []) > > > > ignored = [ 'TARGET_XML_FILES', 'TARGET_ABI_DIR' ] > > @@ -4971,6 +4984,7 @@ summary_info += {'TPM support': have_tpm} > > summary_info += {'IGVM support': igvm} > > summary_info += {'libssh support': libssh} > > summary_info += {'lzo support': lzo} > > +summary_info += {'librpmi support': librpmi} > > summary_info += {'snappy support': snappy} > > summary_info += {'bzip2 support': libbzip2} > > summary_info += {'lzfse support': liblzfse} > > diff --git a/meson_options.txt b/meson_options.txt > > index a07cb47d35..9f773a7886 100644 > > --- a/meson_options.txt > > +++ b/meson_options.txt > > @@ -204,6 +204,8 @@ option('lzfse', type : 'feature', value : 'auto', > > description: 'lzfse support for DMG images') > > option('lzo', type : 'feature', value : 'auto', > > description: 'lzo compression support') > > +option('librpmi', type : 'feature', value : 'auto', > > + description: 'RISC-V RPMI support') > > option('pvg', type: 'feature', value: 'auto', > > description: 'macOS paravirtualized graphics support') > > option('rbd', type : 'feature', value : 'auto', > > diff --git a/scripts/meson-buildoptions.sh > b/scripts/meson-buildoptions.sh > > index c003985047..e8a20068e7 100644 > > --- a/scripts/meson-buildoptions.sh > > +++ b/scripts/meson-buildoptions.sh > > @@ -140,6 +140,7 @@ meson_options_help() { > > printf "%s\n" ' libkeyutils Linux keyutils support' > > printf "%s\n" ' libnfs libnfs block device driver' > > printf "%s\n" ' libpmem libpmem support' > > + printf "%s\n" ' librpmi RISC-V RPMI support' > > printf "%s\n" ' libssh ssh block device support' > > printf "%s\n" ' libudev Use libudev to enumerate host > devices' > > printf "%s\n" ' libusb libusb support for USB passthrough' > > @@ -376,6 +377,8 @@ _meson_option_parse() { > > --disable-libnfs) printf "%s" -Dlibnfs=disabled ;; > > --enable-libpmem) printf "%s" -Dlibpmem=enabled ;; > > --disable-libpmem) printf "%s" -Dlibpmem=disabled ;; > > + --enable-librpmi) printf "%s" -Dlibrpmi=enabled ;; > > + --disable-librpmi) printf "%s" -Dlibrpmi=disabled ;; > > --enable-libssh) printf "%s" -Dlibssh=enabled ;; > > --disable-libssh) printf "%s" -Dlibssh=disabled ;; > > --enable-libudev) printf "%s" -Dlibudev=enabled ;; > > -- > > 2.43.0 > > > > >
