On 07.05.25 14:58, Juergen Gross wrote:
Ping?
I'd really appreciate some feedback. Juergen
On 21.03.25 10:24, Juergen Gross wrote:Add basic kexec support to Mini-OS for running in x86 PVH mode. With this series applied it is possible to activate another kernel from within Mini-OS. Right now no Xen related teardown is done (so no reset of grant table, event channels, PV devices). These should be added via kexec callbacks which are added as a framework. This is a major building block for support of Xenstore-stubdom live update (in fact I've tested the kexec path to work using the PVH variant of Xenstore-stubdom). Juergen Gross (12): add kexec framework Mini-OS: add final kexec stage mini-os: add elf.h mini-os: analyze new kernel for kexec mini-os: kexec: finalize parameter location and size mini-os: reserve memory below boundary mini-os: kexec: build parameters for new kernel mini-os: kexec: move used pages away for new kernel Mini-OS: mm: change set_readonly() to change_readonly() Mini-OS: kexec: switch read-only area to be writable again mini-os: kexec: add kexec callback functionality mini-os: kexec: do the final kexec step Config.mk | 1 + Makefile | 1 + arch/x86/kexec.c | 273 +++++++++++++++++++++++++++++ arch/x86/minios-x86.lds.S | 16 ++ arch/x86/mm.c | 238 ++++++++++++++++++++------ arch/x86/testbuild/all-no | 1 + arch/x86/testbuild/all-yes | 2 + arch/x86/testbuild/kexec | 4 + arch/x86/x86_hvm.S | 46 +++++ include/elf.h | 340 +++++++++++++++++++++++++++++++++++++ include/kexec.h | 63 +++++++ include/mm.h | 8 + include/x86/os.h | 5 + kexec.c | 253 +++++++++++++++++++++++++++ mm.c | 89 +++++++++- 15 files changed, 1289 insertions(+), 51 deletions(-) create mode 100644 arch/x86/kexec.c create mode 100644 arch/x86/testbuild/kexec create mode 100644 include/elf.h create mode 100644 include/kexec.h create mode 100644 kexec.c
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