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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Oct 2025 10:17:47.7777 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 3139284e-e966-4924-5fc7-08de0a41c210 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[satlexmb07.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BN2PEPF000055E0.namprd21.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM4PR12MB6039 X-ZohoMail-DKIM: pass (identity @amd.com) X-ZM-MESSAGEID: 1760351225963154100 Content-Type: text/plain; charset="utf-8" Wrap domctl hypercall def and domctl.o with CONFIG_MGMT_HYPERCALLS. Signed-off-by: Penny Zheng --- v1 -> v2: - remove stub in common/domctl.c - combine the original commit of "xen/domctl: provide stub for domctl_lock_{acquire,release}" - adapt to changes of "unify DOMCTL to MGMT_HYPERCALLS" --- v2 -> v3: - add pitfall warnning in Kconfig help --- xen/common/Kconfig | 6 ++++-- xen/common/Makefile | 2 +- xen/include/hypercall-defs.c | 4 ++-- 3 files changed, 7 insertions(+), 5 deletions(-) diff --git a/xen/common/Kconfig b/xen/common/Kconfig index 309d262386..efbe97c54a 100644 --- a/xen/common/Kconfig +++ b/xen/common/Kconfig @@ -646,11 +646,13 @@ config SYSTEM_SUSPEND If unsure, say N. =20 config MGMT_HYPERCALLS - def_bool y + bool "Enable privileged hypercalls for system management" help This option shall only be disabled on some dom0less systems, or PV shim on x86, to reduce Xen footprint via managing unnessary - hypercalls, like sysctl, etc. + hypercalls, like sysctl, domctl, etc. + Be cautious to disable it, as users will face missing a few basic + hypercalls like listdomains, getdomaininfo, etc. =20 config PM_OP bool "Enable Performance Management Operation" diff --git a/xen/common/Makefile b/xen/common/Makefile index fdf826f218..45c0bda000 100644 --- a/xen/common/Makefile +++ b/xen/common/Makefile @@ -11,7 +11,7 @@ obj-$(filter-out $(CONFIG_X86),$(CONFIG_ACPI)) +=3D devic= e.o obj-$(CONFIG_DEVICE_TREE_PARSE) +=3D device-tree/ obj-$(CONFIG_IOREQ_SERVER) +=3D dm.o obj-y +=3D domain.o -obj-y +=3D domctl.o +obj-$(CONFIG_MGMT_HYPERCALLS) +=3D domctl.o obj-y +=3D domid.o obj-y +=3D event_2l.o obj-y +=3D event_channel.o diff --git a/xen/include/hypercall-defs.c b/xen/include/hypercall-defs.c index 02d7b93e80..c243edc460 100644 --- a/xen/include/hypercall-defs.c +++ b/xen/include/hypercall-defs.c @@ -196,11 +196,11 @@ dm_op(domid_t domid, unsigned int nr_bufs, xen_dm_op_= buf_t *bufs) #endif #ifdef CONFIG_MGMT_HYPERCALLS sysctl(xen_sysctl_t *u_sysctl) +domctl(xen_domctl_t *u_domctl) #endif #if defined(CONFIG_X86) && defined(CONFIG_PAGING) && defined(CONFIG_MGMT_H= YPERCALLS) paging_domctl_cont(xen_domctl_t *u_domctl) #endif -domctl(xen_domctl_t *u_domctl) #ifndef CONFIG_PV_SHIM_EXCLUSIVE platform_op(xen_platform_op_t *u_xenpf_op) #endif @@ -279,8 +279,8 @@ hvm_op do do do= do do #endif #ifdef CONFIG_MGMT_HYPERCALLS sysctl do do do do do -#endif domctl do do do do do +#endif #ifdef CONFIG_KEXEC kexec_op compat do - - - #endif --=20 2.34.1