[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [PATCH v8 0/7] xen: introduce CONFIG_SYSCTL
It can be beneficial for some dom0less systems to further reduce Xen footprint via disabling some hypercalls handling code, which may not to be used & required in such systems. Each hypercall has a separate option to keep configuration flexible. Options to disable hypercalls: - sysctl - domctl - hvm - physdev - platform This patch serie is only focusing on introducing CONFIG_SYSCTL. Different options will be covered in different patch serie. Features, like LIVEPATCH, Overlay DTB, which fully rely on sysctl op, will be wrapped with CONFIG_SYSCTL, to reduce Xen footprint as much as possible. It is derived from Stefano Stabellini's commit "xen: introduce kconfig options to disable hypercalls"( https://lore.kernel.org/xen-devel/20241219092917.3006174-1-Sergiy_Kibrik@xxxxxxxx) --- Commit "xen/x86: remove "depends on !PV_SHIM_EXCLUSIVE"" and commit " xen/sysctl: wrap around sysctl hypercall" shall be commited together. --- Penny Zheng (6): xen/xsm: wrap around xsm_sysctl with CONFIG_SYSCTL xen/sysctl: wrap around XEN_SYSCTL_readconsole xen/sysctl: wrap around XEN_SYSCTL_page_offline_op xen/sysctl: wrap around XEN_SYSCTL_scheduler_op xen/sysctl: wrap around arch-specific arch_do_sysctl xen/x86: remove "depends on !PV_SHIM_EXCLUSIVE" Stefano Stabellini (1): xen/sysctl: wrap around sysctl hypercall xen/arch/arm/Kconfig | 1 + xen/arch/arm/Makefile | 2 +- xen/arch/arm/sysctl.c | 2 -- xen/arch/riscv/stubs.c | 2 +- xen/arch/x86/Kconfig | 4 ---- xen/arch/x86/Makefile | 2 +- xen/arch/x86/configs/pvshim_defconfig | 5 +---- xen/arch/x86/hvm/Kconfig | 1 - xen/arch/x86/psr.c | 18 ++++++++++++++++++ xen/arch/x86/sysctl.c | 2 -- xen/common/Kconfig | 6 +++++- xen/common/Makefile | 2 +- xen/common/page_alloc.c | 2 ++ xen/common/sched/arinc653.c | 6 ++++++ xen/common/sched/core.c | 2 ++ xen/common/sched/credit.c | 4 ++++ xen/common/sched/credit2.c | 4 ++++ xen/common/sched/private.h | 4 ++++ xen/drivers/char/console.c | 2 ++ xen/drivers/video/Kconfig | 2 +- xen/include/hypercall-defs.c | 8 ++++++-- xen/include/xsm/xsm.h | 18 ++++++++++++++++++ xen/xsm/dummy.c | 6 ++++++ xen/xsm/flask/hooks.c | 14 ++++++++++++++ 24 files changed, 98 insertions(+), 21 deletions(-) -- 2.34.1
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