Messages in this thread Patch in this message | ![/](/images/icornerl.gif) | | From | Thomas Gleixner <> | Subject | [patch V2 44/58] x86/apic: Sanitize APID ID range validation | Date | Mon, 24 Jul 2023 15:35:00 +0200 (CEST) |
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Now that everything has apic::max_apic_id set and the eventual update for the x2APIC case is in place, switch the apic_id_valid() helper to use apic::max_apic_id and remove the apic::apic_id_valid() callback.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> --- arch/x86/include/asm/apic.h | 3 +-- arch/x86/kernel/apic/apic_common.c | 5 ----- arch/x86/kernel/apic/apic_flat_64.c | 2 -- arch/x86/kernel/apic/apic_noop.c | 2 -- arch/x86/kernel/apic/apic_numachip.c | 8 -------- arch/x86/kernel/apic/bigsmp_32.c | 1 - arch/x86/kernel/apic/local.h | 1 - arch/x86/kernel/apic/probe_32.c | 1 - arch/x86/kernel/apic/x2apic_cluster.c | 1 - arch/x86/kernel/apic/x2apic_phys.c | 7 ------- arch/x86/kernel/apic/x2apic_uv_x.c | 6 ------ arch/x86/xen/apic.c | 6 ------ 12 files changed, 1 insertion(+), 42 deletions(-)
--- a/arch/x86/include/asm/apic.h +++ b/arch/x86/include/asm/apic.h @@ -284,7 +284,6 @@ struct apic { /* Probe, setup and smpboot functions */ int (*probe)(void); int (*acpi_madt_oem_check)(char *oem_id, char *oem_table_id); - int (*apic_id_valid)(u32 apicid); bool (*apic_id_registered)(void); bool (*check_apicid_used)(physid_mask_t *map, int apicid); @@ -378,7 +377,7 @@ static inline u32 safe_apic_wait_icr_idl static inline bool apic_id_valid(u32 apic_id) { - return apic->apic_id_valid(apic_id); + return apic_id <= apic->max_apic_id; } extern void __init apic_set_eoi_write(void (*eoi_write)(u32 reg, u32 v)); --- a/arch/x86/kernel/apic/apic_common.c +++ b/arch/x86/kernel/apic/apic_common.c @@ -37,11 +37,6 @@ int default_cpu_present_to_apicid(int mp } EXPORT_SYMBOL_GPL(default_cpu_present_to_apicid); -int default_apic_id_valid(u32 apicid) -{ - return (apicid < 255); -} - bool default_apic_id_registered(void) { return physid_isset(read_apic_id(), phys_cpu_present_map); --- a/arch/x86/kernel/apic/apic_flat_64.c +++ b/arch/x86/kernel/apic/apic_flat_64.c @@ -80,7 +80,6 @@ static struct apic apic_flat __ro_after_ .name = "flat", .probe = flat_probe, .acpi_madt_oem_check = flat_acpi_madt_oem_check, - .apic_id_valid = default_apic_id_valid, .apic_id_registered = default_apic_id_registered, .delivery_mode = APIC_DELIVERY_MODE_FIXED, @@ -158,7 +157,6 @@ static struct apic apic_physflat __ro_af .name = "physical flat", .probe = physflat_probe, .acpi_madt_oem_check = physflat_acpi_madt_oem_check, - .apic_id_valid = default_apic_id_valid, .apic_id_registered = default_apic_id_registered, .delivery_mode = APIC_DELIVERY_MODE_FIXED, --- a/arch/x86/kernel/apic/apic_noop.c +++ b/arch/x86/kernel/apic/apic_noop.c @@ -67,8 +67,6 @@ struct apic apic_noop __ro_after_init = .probe = noop_probe, .acpi_madt_oem_check = NULL, - .apic_id_valid = default_apic_id_valid, - .delivery_mode = APIC_DELIVERY_MODE_FIXED, .dest_mode_logical = true, --- a/arch/x86/kernel/apic/apic_numachip.c +++ b/arch/x86/kernel/apic/apic_numachip.c @@ -56,12 +56,6 @@ static u32 numachip2_set_apic_id(unsigne return id << 24; } -static int numachip_apic_id_valid(u32 apicid) -{ - /* Trust what bootloader passes in MADT */ - return 1; -} - static int numachip_phys_pkg_id(int initial_apic_id, int index_msb) { return initial_apic_id >> index_msb; @@ -227,7 +221,6 @@ static const struct apic apic_numachip1 .name = "NumaConnect system", .probe = numachip1_probe, .acpi_madt_oem_check = numachip1_acpi_madt_oem_check, - .apic_id_valid = numachip_apic_id_valid, .delivery_mode = APIC_DELIVERY_MODE_FIXED, .dest_mode_logical = false, @@ -267,7 +260,6 @@ static const struct apic apic_numachip2 .name = "NumaConnect2 system", .probe = numachip2_probe, .acpi_madt_oem_check = numachip2_acpi_madt_oem_check, - .apic_id_valid = numachip_apic_id_valid, .delivery_mode = APIC_DELIVERY_MODE_FIXED, .dest_mode_logical = false, --- a/arch/x86/kernel/apic/bigsmp_32.c +++ b/arch/x86/kernel/apic/bigsmp_32.c @@ -79,7 +79,6 @@ static struct apic apic_bigsmp __ro_afte .name = "bigsmp", .probe = probe_bigsmp, - .apic_id_valid = default_apic_id_valid, .delivery_mode = APIC_DELIVERY_MODE_FIXED, .dest_mode_logical = false, --- a/arch/x86/kernel/apic/local.h +++ b/arch/x86/kernel/apic/local.h @@ -14,7 +14,6 @@ #include <asm/apic.h> /* X2APIC */ -int x2apic_apic_id_valid(u32 apicid); void __x2apic_send_IPI_dest(unsigned int apicid, int vector, unsigned int dest); unsigned int x2apic_get_apic_id(unsigned long id); u32 x2apic_set_apic_id(unsigned int id); --- a/arch/x86/kernel/apic/probe_32.c +++ b/arch/x86/kernel/apic/probe_32.c @@ -33,7 +33,6 @@ static struct apic apic_default __ro_aft .name = "default", .probe = probe_default, - .apic_id_valid = default_apic_id_valid, .apic_id_registered = default_apic_id_registered, .delivery_mode = APIC_DELIVERY_MODE_FIXED, --- a/arch/x86/kernel/apic/x2apic_cluster.c +++ b/arch/x86/kernel/apic/x2apic_cluster.c @@ -226,7 +226,6 @@ static struct apic apic_x2apic_cluster _ .name = "cluster x2apic", .probe = x2apic_cluster_probe, .acpi_madt_oem_check = x2apic_acpi_madt_oem_check, - .apic_id_valid = x2apic_apic_id_valid, .delivery_mode = APIC_DELIVERY_MODE_FIXED, .dest_mode_logical = true, --- a/arch/x86/kernel/apic/x2apic_phys.c +++ b/arch/x86/kernel/apic/x2apic_phys.c @@ -124,12 +124,6 @@ static int x2apic_phys_probe(void) return apic == &apic_x2apic_phys; } -/* Common x2apic functions, also used by x2apic_cluster */ -int x2apic_apic_id_valid(u32 apicid) -{ - return apicid <= x2apic_max_apicid; -} - unsigned int x2apic_get_apic_id(unsigned long id) { return id; @@ -150,7 +144,6 @@ static struct apic apic_x2apic_phys __ro .name = "physical x2apic", .probe = x2apic_phys_probe, .acpi_madt_oem_check = x2apic_acpi_madt_oem_check, - .apic_id_valid = x2apic_apic_id_valid, .delivery_mode = APIC_DELIVERY_MODE_FIXED, .dest_mode_logical = false, --- a/arch/x86/kernel/apic/x2apic_uv_x.c +++ b/arch/x86/kernel/apic/x2apic_uv_x.c @@ -780,11 +780,6 @@ static void uv_send_IPI_all(int vector) uv_send_IPI_mask(cpu_online_mask, vector); } -static int uv_apic_id_valid(u32 apicid) -{ - return 1; -} - static u32 set_apic_id(unsigned int id) { return id; @@ -810,7 +805,6 @@ static struct apic apic_x2apic_uv_x __ro .name = "UV large system", .probe = uv_probe, .acpi_madt_oem_check = uv_acpi_madt_oem_check, - .apic_id_valid = uv_apic_id_valid, .delivery_mode = APIC_DELIVERY_MODE_FIXED, .dest_mode_logical = false, --- a/arch/x86/xen/apic.c +++ b/arch/x86/xen/apic.c @@ -105,11 +105,6 @@ static int xen_madt_oem_check(char *oem_ return xen_pv_domain(); } -static int xen_id_always_valid(u32 apicid) -{ - return 1; -} - static int xen_phys_pkg_id(int initial_apic_id, int index_msb) { return initial_apic_id >> index_msb; @@ -127,7 +122,6 @@ static struct apic xen_pv_apic = { .name = "Xen PV", .probe = xen_apic_probe_pv, .acpi_madt_oem_check = xen_madt_oem_check, - .apic_id_valid = xen_id_always_valid, /* .delivery_mode and .dest_mode_logical not used by XENPV */
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