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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 25 Jul 2025 06:15:57.6122 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 99fb00df-3639-42e4-fbb3-08ddcb42b856 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=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BY1PEPF0001AE1D.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH3PR12MB8482 X-ZohoMail-DKIM: pass (identity @amd.com) X-ZM-MESSAGEID: 1753424185536116600 ucode_update_hcall() is only used for XENPF_microcode_update and XENPF_microcode_update2, so wrap it and its call stack functions: ucode_update_hcall ucode_update_hcall_cont do_microcode_update control_thread_fn microcode_nmi_callback is_cpu_primary primary_thread_work secondary_nmi_work wait_for_state set_state wait_for_condition wait_cpu_callin wait_cpu_callout primary_thread_fn secondary_thread_fn Signed-off-by: Jiqian Chen --- cc: Jan Beulich cc: Andrew Cooper cc: "Roger Pau Monn=C3=A9" --- xen/arch/x86/cpu/microcode/core.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/xen/arch/x86/cpu/microcode/core.c b/xen/arch/x86/cpu/microcode= /core.c index 816e9bfe40ba..ec306cea895e 100644 --- a/xen/arch/x86/cpu/microcode/core.c +++ b/xen/arch/x86/cpu/microcode/core.c @@ -59,6 +59,7 @@ #define MICROCODE_UPDATE_TIMEOUT_US 1000000 =20 static bool __initdata ucode_mod_forced; +#ifdef CONFIG_PLATFORM_OP static unsigned int nr_cores; =20 /* @@ -76,6 +77,7 @@ static enum { LOADING_ENTER, LOADING_EXIT, } loading_state; +#endif /* CONFIG_PLATFORM_OP */ =20 struct patch_with_flags { unsigned int flags; @@ -167,6 +169,7 @@ static struct microcode_ops __ro_after_init ucode_ops; static DEFINE_SPINLOCK(microcode_mutex); =20 DEFINE_PER_CPU(struct cpu_signature, cpu_sig); +#ifdef CONFIG_PLATFORM_OP /* Store error code of the work done in NMI handler */ static DEFINE_PER_CPU(int, loading_err); =20 @@ -183,6 +186,7 @@ static struct patch_with_flags nmi_patch =3D { .patch =3D ZERO_BLOCK_PTR, }; +#endif /* CONFIG_PLATFORM_OP */ =20 /* * Return a patch that covers current CPU. If there are multiple patches, @@ -195,6 +199,7 @@ static struct microcode_patch *parse_blob(const char *b= uf, size_t len) return alternative_call(ucode_ops.cpu_request_microcode, buf, len, tru= e); } =20 +#ifdef CONFIG_PLATFORM_OP /* Returns true if ucode should be loaded on a given cpu */ static bool is_cpu_primary(unsigned int cpu) { @@ -646,6 +651,7 @@ int ucode_update_hcall(XEN_GUEST_HANDLE(const_void) buf, */ return continue_hypercall_on_cpu(0, ucode_update_hcall_cont, buffer); } +#endif /* CONFIG_PLATFORM_OP */ =20 /* Load a cached update to current cpu */ int microcode_update_one(void) --=20 2.34.1