WiP: linux config global tweaks overhaul, unifying kernel configs and…

… keeping important board related perks

CONFIG_PREEMPT_NONE=y: Remove preemptiveness for servers. Under heads, we are single tasking. No point having this big thing in kernel https://lwn.net/Articles/746780/
IO scheduler: only enable CONFIG_MQ_IOSCHED_DEADLINE=y since we want maximum throughput and do not have concurrent tasks
CONFIG_CPU_ISOLATION=y : Enable CPU Isolation accross all boards: this permits to make sure that the kernel tasks running on a CPU are not distrurbed bu user tasks
CONFIG_MULTIUSER not defined: Removing cluttering since we are single root user under Heads anyway
CONFIG_IO_URING=y : limit number of copy operations between kernel and user space from apps
CONFIG_ZONE_DMA not defined: relevant for older hardware (less then 32bit addressing space)
CONFIG_X86_MPPARSE not defined: relevant for older smp systems
CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is enabled and SCHEDUTIL is disabled: we want performance with CPU sched with deadline IO.
CONFIG_PERF_EVENTS_INTEL_UNCORE and CONFIG_PERF_EVENTS_INTEL_CSTATE not defined: we want max perf on Heads
CONFIG_X86_VSYSCALL_EMULATION not defined: no need for syscall emulation under Heads
CONFIG_SECCOMP not defined : usefull if BPF is enabled and used.
CONFIG_ACPI_SPCR_TABLE=y : usefull for serial redirection table and earlycon
CONFIG_PCI_MMCONFIG CONFIG_MMCONF_FAM10H unset but for kgpe-d16 which is either fam10h of fam15h
CONFIG_DM_SNAPSHOT=y CONFIG_DM_THIN_PROVISIONING=y so that recovery shell can provide LVM/DM functionality in later PR.
CONFIG_EXFAT_FS=y so that exfat preformated thumb drives can work out of the box
Adjust CONFIG_HW_RANDOM per platform, removing CONFIG_HW_RANDOM_TIMERIOMEM
Only support processor family needed per board (AMD only AMD, Intel only Intel, removing CONFIG_CPU_SUP_HYGON CONFIG_CPU_SUP_HYGON CONFIG_CPU_SUP_CENTAUR CONFIG_CPU_SUP_ZHAOXIN CONFIG_CPU_SUP_ZHAOXIN everywhere
qemu: support both AMD and INTEL as an exception for the above.

Removed unused compiled modules unpacked under modules.cpio
Removed not needed crypto modules compiled in or as modules, reviewed from linuxboot#1396 (comment) :
CONFIG_CRYPTO=y
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_SKCIPHER=y
CONFIG_CRYPTO_SKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_AKCIPHER2=y
CONFIG_CRYPTO_KPP2=y
CONFIG_CRYPTO_ACOMP2=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
CONFIG_CRYPTO_USER=y
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
CONFIG_CRYPTO_NULL=y
CONFIG_CRYPTO_NULL2=y
CONFIG_CRYPTO_CRYPTD=y
CONFIG_CRYPTO_AUTHENC=y
CONFIG_CRYPTO_SIMD=y
CONFIG_CRYPTO_GLUE_HELPER_X86=y
CONFIG_CRYPTO_CBC=y
CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_XTS=y
CONFIG_CRYPTO_ESSIV=y
CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_CRC32C=y
CONFIG_CRYPTO_CRC32C_INTEL=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_SHA1=y
CONFIG_CRYPTO_SHA1_SSSE3=y
CONFIG_CRYPTO_SHA256_SSSE3=y
CONFIG_CRYPTO_SHA512_SSSE3=y
CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_SHA512=y
CONFIG_CRYPTO_AES_NI_INTEL=y
CONFIG_CRYPTO_USER_API=y
CONFIG_CRYPTO_USER_API_HASH=y
CONFIG_CRYPTO_USER_API_SKCIPHER=y
CONFIG_CRYPTO_USER_API_RNG=y
CONFIG_CRYPTO_USER_API_AEAD=y
CONFIG_CRYPTO_HASH_INFO=y
CONFIG_CRYPTO_LIB_AES=y
CONFIG_CRYPTO_LIB_SHA256=y

config/linux-x230-flash.config

@@ -97,7 +97,6 @@ CONFIG_PREEMPT_NONE=y
 CONFIG_TICK_CPU_ACCOUNTING=y
 # CONFIG_VIRT_CPU_ACCOUNTING_GEN is not set
 # CONFIG_IRQ_TIME_ACCOUNTING is not set
-# CONFIG_BSD_PROCESS_ACCT is not set
 # CONFIG_PSI is not set
 # end of CPU/Task time and stats accounting
 
@@ -132,7 +131,6 @@ CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH=y
 CONFIG_CC_HAS_INT128=y
 CONFIG_ARCH_SUPPORTS_INT128=y
 # CONFIG_CGROUPS is not set
-# CONFIG_NAMESPACES is not set
 # CONFIG_CHECKPOINT_RESTORE is not set
 # CONFIG_SCHED_AUTOGROUP is not set
 # CONFIG_SYSFS_DEPRECATED is not set
@@ -157,7 +155,7 @@ CONFIG_LD_ORPHAN_WARN=y
 CONFIG_SYSCTL_EXCEPTION_TRACE=y
 CONFIG_HAVE_PCSPKR_PLATFORM=y
 CONFIG_EXPERT=y
-CONFIG_MULTIUSER=y
+# CONFIG_MULTIUSER is not set
 # CONFIG_SGETMASK_SYSCALL is not set
 # CONFIG_SYSFS_SYSCALL is not set
 # CONFIG_FHANDLE is not set
@@ -247,7 +245,7 @@ CONFIG_CC_HAS_SANE_STACKPROTECTOR=y
 #
 # Processor type and features
 #
-CONFIG_ZONE_DMA=y
+# CONFIG_ZONE_DMA is not set
 CONFIG_SMP=y
 CONFIG_X86_FEATURE_NAMES=y
 CONFIG_X86_MPPARSE=y
@@ -457,7 +455,8 @@ CONFIG_GENERIC_ENTRY=y
 CONFIG_HAVE_OPROFILE=y
 CONFIG_OPROFILE_NMI_TIMER=y
 # CONFIG_KPROBES is not set
-# CONFIG_JUMP_LABEL is not set
+CONFIG_JUMP_LABEL=y
+# CONFIG_STATIC_KEYS_SELFTEST is not set
 # CONFIG_STATIC_CALL_SELFTEST is not set
 CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
 CONFIG_ARCH_USE_BUILTIN_BSWAP=y
@@ -618,14 +617,13 @@ CONFIG_SPARSEMEM_MANUAL=y
 CONFIG_SPARSEMEM=y
 CONFIG_SPARSEMEM_EXTREME=y
 CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
-# CONFIG_SPARSEMEM_VMEMMAP is not set
+CONFIG_SPARSEMEM_VMEMMAP=y
 CONFIG_HAVE_FAST_GUP=y
 # CONFIG_MEMORY_HOTPLUG is not set
 CONFIG_SPLIT_PTLOCK_CPUS=4
 # CONFIG_COMPACTION is not set
 # CONFIG_PAGE_REPORTING is not set
 CONFIG_PHYS_ADDR_T_64BIT=y
-# CONFIG_BOUNCE is not set
 CONFIG_VIRT_TO_BUS=y
 CONFIG_MMU_NOTIFIER=y
 # CONFIG_KSM is not set
@@ -1034,7 +1032,7 @@ CONFIG_TTY_PRINTK_LEVEL=6
 # CONFIG_IPMI_HANDLER is not set
 # CONFIG_IPMB_DEVICE_INTERFACE is not set
 CONFIG_HW_RANDOM=y
-CONFIG_HW_RANDOM_TIMERIOMEM=y
+# CONFIG_HW_RANDOM_TIMERIOMEM is not set
 CONFIG_HW_RANDOM_INTEL=y
 # CONFIG_HW_RANDOM_AMD is not set
 # CONFIG_HW_RANDOM_BA431 is not set
@@ -2139,7 +2137,6 @@ CONFIG_UNICODE=y
 #
 # CONFIG_KEYS is not set
 # CONFIG_SECURITY_DMESG_RESTRICT is not set
-# CONFIG_SECURITY is not set
 # CONFIG_SECURITYFS is not set
 # CONFIG_PAGE_TABLE_ISOLATION is not set
 CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y