hw/ipmi/ipmi_bmc_sim.c | 407 +++++++++++++++++++++++++++++++++++- include/hw/ipmi/ipmi.h | 1 + qemu-options.hx | 26 +++ tests/qtest/ipmi-kcs-test.c | 143 +++++++++++++ 4 files changed, 567 insertions(+), 10 deletions(-)
Support for a fake LAN channel is added to the device `ipmi_bmc_sim`. Although there is no real LAN channel, some testing processes which require interactions with BMC LAN channel will become easier. There's another device `ipmi_bmc_extern` which works together with some external BMC simulator, e.g., `ipmi_sim`. More comprehensive BMC simulation can be achieved with `ipmi_bmc_extern`. However, `ipmi_bmc_sim` is more light-weight and is built into QEMU. Yunpeng Yang (2): hw/ipmi/ipmi_bmc_sim: Support getting fake LAN channel config hw/ipmi/ipmi_bmc_sim: Support setting fake LAN channel config hw/ipmi/ipmi_bmc_sim.c | 407 +++++++++++++++++++++++++++++++++++- include/hw/ipmi/ipmi.h | 1 + qemu-options.hx | 26 +++ tests/qtest/ipmi-kcs-test.c | 143 +++++++++++++ 4 files changed, 567 insertions(+), 10 deletions(-) -- 2.43.7
On Tue, Oct 28, 2025 at 06:01:18PM +0000, Yunpeng Yang wrote: > Support for a fake LAN channel is added to the device `ipmi_bmc_sim`. > Although there is no real LAN channel, some testing processes which > require interactions with BMC LAN channel will become easier. > > There's another device `ipmi_bmc_extern` which works together with some > external BMC simulator, e.g., `ipmi_sim`. More comprehensive BMC > simulation can be achieved with `ipmi_bmc_extern`. However, > `ipmi_bmc_sim` is more light-weight and is built into QEMU. I apologize for the time on this, it slipped between the cracks. These both look good. I can give a: Reviewed-by: Corey Minyard <corey@minyard.net> or Acked-by: Corey Minyard <corey@minyard.net> or I can take it into my tree if you aren't bringing it in any place else. One thing you should try is doing a migration between a version 1 and version 2 device, and between two version 2 devices, just to be sure migration still works. Assuming you haven't done this already. -corey > > Yunpeng Yang (2): > hw/ipmi/ipmi_bmc_sim: Support getting fake LAN channel config > hw/ipmi/ipmi_bmc_sim: Support setting fake LAN channel config > > hw/ipmi/ipmi_bmc_sim.c | 407 +++++++++++++++++++++++++++++++++++- > include/hw/ipmi/ipmi.h | 1 + > qemu-options.hx | 26 +++ > tests/qtest/ipmi-kcs-test.c | 143 +++++++++++++ > 4 files changed, 567 insertions(+), 10 deletions(-) > > -- > 2.43.7 >
Hello Corey, Thank you for your reply. Please add tags or take the patches into your tree at your discretion. I'm not bringing the patches in any place else. I haven't tested migration between a version 1 and a version 2 device. I'll do a test and tell you the result. Thank you for your suggestion. Kind regards, Yunpeng ________________________________ From: Corey Minyard <corey@minyard.net> Sent: Monday, November 24, 2025 20:54 To: Yunpeng Yang <yunpeng.yang@nutanix.com> Cc: minyard@acm.org <minyard@acm.org>; farosas@suse.de <farosas@suse.de>; lvivier@redhat.com <lvivier@redhat.com>; pbonzini@redhat.com <pbonzini@redhat.com>; qemu-devel@nongnu.org <qemu-devel@nongnu.org>; Mark Cave-Ayland <mark.caveayland@nutanix.com>; Jonathan Davies <jond@nutanix.com>; cornelia.huck@de.ibm.com <cornelia.huck@de.ibm.com> Subject: Re: [PATCH 0/2] hw/ipmi/ipmi_bmc_sim: Get/set fake LAN config !-------------------------------------------------------------------| CAUTION: External Email |-------------------------------------------------------------------! On Tue, Oct 28, 2025 at 06:01:18PM +0000, Yunpeng Yang wrote: > Support for a fake LAN channel is added to the device `ipmi_bmc_sim`. > Although there is no real LAN channel, some testing processes which > require interactions with BMC LAN channel will become easier. > > There's another device `ipmi_bmc_extern` which works together with some > external BMC simulator, e.g., `ipmi_sim`. More comprehensive BMC > simulation can be achieved with `ipmi_bmc_extern`. However, > `ipmi_bmc_sim` is more light-weight and is built into QEMU. I apologize for the time on this, it slipped between the cracks. These both look good. I can give a: Reviewed-by: Corey Minyard <corey@minyard.net> or Acked-by: Corey Minyard <corey@minyard.net> or I can take it into my tree if you aren't bringing it in any place else. One thing you should try is doing a migration between a version 1 and version 2 device, and between two version 2 devices, just to be sure migration still works. Assuming you haven't done this already. -corey > > Yunpeng Yang (2): > hw/ipmi/ipmi_bmc_sim: Support getting fake LAN channel config > hw/ipmi/ipmi_bmc_sim: Support setting fake LAN channel config > > hw/ipmi/ipmi_bmc_sim.c | 407 +++++++++++++++++++++++++++++++++++- > include/hw/ipmi/ipmi.h | 1 + > qemu-options.hx | 26 +++ > tests/qtest/ipmi-kcs-test.c | 143 +++++++++++++ > 4 files changed, 567 insertions(+), 10 deletions(-) > > -- > 2.43.7 >
Hello Corey, I have done a VM migration test from a v1 `ipmi_bmc_sim` qemu to a v2 `ipmi_bmc_sim` qemu. The migration was successful. The VM had `ipmi_bmc_sim` configured but with no LAN channel. A v2 to v2 migration with LAN channel was also successful. Kind regards, Yunpeng ________________________________ From: Yunpeng Yang <yunpeng.yang@nutanix.com> Sent: Wednesday, November 26, 2025 18:04 To: corey@minyard.net <corey@minyard.net> Cc: minyard@acm.org <minyard@acm.org>; farosas@suse.de <farosas@suse.de>; lvivier@redhat.com <lvivier@redhat.com>; pbonzini@redhat.com <pbonzini@redhat.com>; qemu-devel@nongnu.org <qemu-devel@nongnu.org>; Mark Cave-Ayland <mark.caveayland@nutanix.com>; Jonathan Davies <jond@nutanix.com>; cornelia.huck@de.ibm.com <cornelia.huck@de.ibm.com> Subject: Re: [PATCH 0/2] hw/ipmi/ipmi_bmc_sim: Get/set fake LAN config Hello Corey, Thank you for your reply. Please add tags or take the patches into your tree at your discretion. I'm not bringing the patches in any place else. I haven't tested migration between a version 1 and a version 2 device. I'll do a test and tell you the result. Thank you for your suggestion. Kind regards, Yunpeng ________________________________ From: Corey Minyard <corey@minyard.net> Sent: Monday, November 24, 2025 20:54 To: Yunpeng Yang <yunpeng.yang@nutanix.com> Cc: minyard@acm.org <minyard@acm.org>; farosas@suse.de <farosas@suse.de>; lvivier@redhat.com <lvivier@redhat.com>; pbonzini@redhat.com <pbonzini@redhat.com>; qemu-devel@nongnu.org <qemu-devel@nongnu.org>; Mark Cave-Ayland <mark.caveayland@nutanix.com>; Jonathan Davies <jond@nutanix.com>; cornelia.huck@de.ibm.com <cornelia.huck@de.ibm.com> Subject: Re: [PATCH 0/2] hw/ipmi/ipmi_bmc_sim: Get/set fake LAN config !-------------------------------------------------------------------| CAUTION: External Email |-------------------------------------------------------------------! On Tue, Oct 28, 2025 at 06:01:18PM +0000, Yunpeng Yang wrote: > Support for a fake LAN channel is added to the device `ipmi_bmc_sim`. > Although there is no real LAN channel, some testing processes which > require interactions with BMC LAN channel will become easier. > > There's another device `ipmi_bmc_extern` which works together with some > external BMC simulator, e.g., `ipmi_sim`. More comprehensive BMC > simulation can be achieved with `ipmi_bmc_extern`. However, > `ipmi_bmc_sim` is more light-weight and is built into QEMU. I apologize for the time on this, it slipped between the cracks. These both look good. I can give a: Reviewed-by: Corey Minyard <corey@minyard.net> or Acked-by: Corey Minyard <corey@minyard.net> or I can take it into my tree if you aren't bringing it in any place else. One thing you should try is doing a migration between a version 1 and version 2 device, and between two version 2 devices, just to be sure migration still works. Assuming you haven't done this already. -corey > > Yunpeng Yang (2): > hw/ipmi/ipmi_bmc_sim: Support getting fake LAN channel config > hw/ipmi/ipmi_bmc_sim: Support setting fake LAN channel config > > hw/ipmi/ipmi_bmc_sim.c | 407 +++++++++++++++++++++++++++++++++++- > include/hw/ipmi/ipmi.h | 1 + > qemu-options.hx | 26 +++ > tests/qtest/ipmi-kcs-test.c | 143 +++++++++++++ > 4 files changed, 567 insertions(+), 10 deletions(-) > > -- > 2.43.7 >
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