diff options
Diffstat (limited to '0001-Add-support-for-deprecating-processors.patch')
| -rw-r--r-- | 0001-Add-support-for-deprecating-processors.patch | 303 |
1 files changed, 0 insertions, 303 deletions
diff --git a/0001-Add-support-for-deprecating-processors.patch b/0001-Add-support-for-deprecating-processors.patch deleted file mode 100644 index 189a97156..000000000 --- a/0001-Add-support-for-deprecating-processors.patch +++ /dev/null @@ -1,303 +0,0 @@ -From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 -From: Laura Abbott <labbott@redhat.com> -Date: Wed, 13 Nov 2019 14:44:30 -0500 -Subject: [PATCH] Add support for deprecating processors - -Message-id: <20191113144431.9403-4-labbott@redhat.com> -Patchwork-id: 286081 -O-Subject: [ARK INTERNAL PATCHv2 3/4] [redhat] Add support for deprecating processors -Bugzilla: -RH-Acked-by: Don Zickus <dzickus@redhat.com> -RH-Acked-by: Prarit Bhargava <prarit@redhat.com> -RH-Acked-by: Jiri Benc <jbenc@redhat.com> - -This is the squashed version of the following patches -modifed to use the new CONFIG_RH_DISABLE_DEPRECATED option - -add rh_check_supported - -Message-id: <1525313397-75200-1-git-send-email-darcari@redhat.com> -Patchwork-id: 212189 -O-Subject: [RHEL8.0 BZ 1565717 v2] x86: add rh_check_supported -Bugzilla: 1565717 -RH-Acked-by: Steve Best <sbest@redhat.com> -RH-Acked-by: Mikulas Patocka <mpatocka@redhat.com> - -Description: - -Add code to verify that the booted x86 processor is supported by -Red Hat. In cases where the processor is not supported a critical -message is logged. - -Initially the supported set of processors for RHEL8 remains the same -as RHEL7. - -Bugzilla: http://bugzilla.redhat.com/1565717 -Brew: https://brewweb.devel.redhat.com/taskinfo?taskID=15966242 - -Test: Booted brew build on supported (Haswell) and unsupported processor (CNL) - and achieved desired results. - -Upstream: RHEL Only - -Cc: David Arcari <darcari@redhat.com> -Cc: Mikulas Patocka <mpatocka@redhat.com> -Cc: Dave Young <dyoung@redhat.com> -Cc: Josh Poimboeuf <jpoimboe@redhat.com> -Signed-off-by: Herton R. Krzesinski <herton@redhat.com> - -update rh_check_supported processor list - -Message-id: <1530618602-17477-1-git-send-email-darcari@redhat.com> -Patchwork-id: 223452 -O-Subject: [RHEL8.0 BZ 1595918] x86: update rh_check_supported processor list -Bugzilla: 1595918 -RH-Acked-by: Jarod Wilson <jarod@redhat.com> -RH-Acked-by: Prarit Bhargava <prarit@redhat.com> -RH-Acked-by: Steve Best <sbest@redhat.com> - -Bugzilla: http://bugzilla.redhat.com/1595918 -Upstream Status: RHEL_only -Build Info: https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=16916208 -Tested: Verified on a varity of supported and unsupported Intel and AMD systems. - Results as expected. - -In RHEL8, we are marking some of the older processors as unsupported. No code -is being removed; however, the older processors are not supported and as such -are not candidates for certification. - -Cc: David Arcari <darcari@redhat.com> -Cc: Prarit Bhargava <prarit@redhat.com> -Cc: Steve Best <sbest@redhat.com> -Signed-off-by: Herton R. Krzesinski <herton@redhat.com> -Signed-off-by: Jakub Racek <jracek@redhat.com> -refresh: rename FAM6_ATOM again, see f2c4db1bd - -mark whiskey-lake processor supported - -Message-id: <1533125629-12870-1-git-send-email-darcari@redhat.com> -Patchwork-id: 225809 -O-Subject: [ BZ 1609604] mark whiskey-lake processor supported -Bugzilla: 1609604 -RH-Acked-by: Steve Best <sbest@redhat.com> -RH-Acked-by: Tony Camuso <tcamuso@redhat.com> -RH-Acked-by: Prarit Bhargava <prarit@redhat.com> - -Bugzilla: http://bugzilla.redhat.com/1609604 -Build Info: https://brewweb.devel.redhat.com/taskinfo?taskID=17474338 -Upstream Status: RHEL Only -Tested: Successful excecution of platform-test suite. - -Whiskey Lake is cpu model 142 with stepping 11. Stepping > 11 for cpu model -142 is not supported. - -For model 158, the highest supported stepping is 10. - -Cc: Prarit Bhargava <prarit@redhat.com> -Cc: David Arcari <darcari@redhat.com> -Cc: Dave Young <dyoung@redhat.com> -Signed-off-by: Herton R. Krzesinski <herton@redhat.com> - -mark intel knights landing and knights mill unsupported - -Message-id: <1533580277-126323-1-git-send-email-darcari@redhat.com> -Patchwork-id: 226187 -O-Subject: [RHEL8.0 BZ 1610493] mark intel knights landing and knights mill unsupported -Bugzilla: 1610493 -RH-Acked-by: Tony Camuso <tcamuso@redhat.com> -RH-Acked-by: Prarit Bhargava <prarit@redhat.com> -RH-Acked-by: Steve Best <sbest@redhat.com> - -Bugzilla: http://bugzilla.redhat.com/1610493 -Build Info: https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=17625348 - -Tested: verified on KNL/KNM system -Upstream Status: RHEL Only -Depends: http://bugzilla.redhat.com/1609604 - -We are marking KNL/KNM processors as unsupported. No code is being removed; -however, the older processors are not supported and as such are not -candidates for certification. - -Upstream Status: RHEL only -Cc: Prarit Bhargava <prarit@redhat.com> -Cc: David Arcari <darcari@redhat.com> -Cc: Dave Young <dyoung@redhat.com> -Signed-off-by: Herton R. Krzesinski <herton@redhat.com> ---- - arch/x86/kernel/cpu/common.c | 1 + - arch/x86/kernel/setup.c | 132 ++++++++++++++++++++++++++++++++++- - 2 files changed, 132 insertions(+), 1 deletion(-) - -diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c -index 95c090a45b4b..bcc6d2df56c0 100644 ---- a/arch/x86/kernel/cpu/common.c -+++ b/arch/x86/kernel/cpu/common.c -@@ -1236,6 +1236,7 @@ static void __init early_identify_cpu(struct cpuinfo_x86 *c) - cpu_detect(c); - get_cpu_vendor(c); - get_cpu_cap(c); -+ get_model_name(c); /* RHEL: get model name for unsupported check */ - get_cpu_address_sizes(c); - setup_force_cpu_cap(X86_FEATURE_CPUID); - -diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c -index a3767e74c758..a1b8cb9a2579 100644 ---- a/arch/x86/kernel/setup.c -+++ b/arch/x86/kernel/setup.c -@@ -44,6 +44,7 @@ - #include <asm/unwind.h> - #include <asm/vsyscall.h> - #include <linux/vmalloc.h> -+#include <asm/intel-family.h> - - /* - * max_low_pfn_mapped: highest directly mapped pfn < 4 GB -@@ -753,7 +754,132 @@ static void __init trim_low_memory_range(void) - { - memblock_reserve(0, ALIGN(reserve_low, PAGE_SIZE)); - } -- -+ -+static bool valid_amd_processor(__u8 family, const char *model_id) -+{ -+ bool valid; -+ -+ switch(family) { -+ case 0x15: -+ valid = true; -+ break; -+ -+ case 0x17: -+ valid = strstr(model_id, "AMD EPYC 7"); -+ break; -+ -+ default: -+ valid = false; -+ break; -+ } -+ -+ return valid; -+} -+ -+static bool valid_intel_processor(__u8 family, __u8 model, __u8 stepping) -+{ -+ bool valid; -+ -+ if (family != 6) -+ return false; -+ -+ switch(model) { -+ case INTEL_FAM6_ATOM_GOLDMONT_D: -+ case INTEL_FAM6_ATOM_GOLDMONT_PLUS: -+ -+ case INTEL_FAM6_BROADWELL: -+ case INTEL_FAM6_BROADWELL_G: -+ case INTEL_FAM6_BROADWELL_X: -+ case INTEL_FAM6_BROADWELL_D: -+ -+ case INTEL_FAM6_HASWELL: -+ case INTEL_FAM6_HASWELL_G: -+ case INTEL_FAM6_HASWELL_L: -+ case INTEL_FAM6_HASWELL_X: -+ valid = true; -+ break; -+ -+ case INTEL_FAM6_KABYLAKE: -+ valid = (stepping <= 10); -+ break; -+ -+ case INTEL_FAM6_KABYLAKE_L: -+ valid = (stepping <= 11); -+ break; -+ -+ case INTEL_FAM6_SKYLAKE_L: -+ case INTEL_FAM6_SKYLAKE: -+ case INTEL_FAM6_SKYLAKE_X: -+ /* stepping > 4 is Cascade Lake and is not supported */ -+ valid = (stepping <= 4); -+ break; -+ -+ default: -+ valid = false; -+ break; -+ } -+ -+ return valid; -+} -+ -+static void rh_check_supported(void) -+{ -+ bool guest; -+ -+ guest = (x86_hyper_type != X86_HYPER_NATIVE || boot_cpu_has(X86_FEATURE_HYPERVISOR)); -+ -+ /* RHEL supports single cpu on guests only */ -+ if (((boot_cpu_data.x86_max_cores * smp_num_siblings) == 1) && -+ !guest && is_kdump_kernel()) { -+ pr_crit("Detected single cpu native boot.\n"); -+ pr_crit("Important: In this kernel, single threaded, single CPU 64-bit physical systems are unsupported."); -+ } -+ -+ /* -+ * If the RHEL kernel does not support this hardware, the kernel will -+ * attempt to boot, but no support is provided for this hardware -+ */ -+ switch (boot_cpu_data.x86_vendor) { -+ case X86_VENDOR_AMD: -+ if (!valid_amd_processor(boot_cpu_data.x86, -+ boot_cpu_data.x86_model_id)) { -+ pr_crit("Detected CPU family %xh model %d\n", -+ boot_cpu_data.x86, -+ boot_cpu_data.x86_model); -+ mark_hardware_unsupported("AMD Processor"); -+ } -+ break; -+ -+ case X86_VENDOR_INTEL: -+ if (!valid_intel_processor(boot_cpu_data.x86, -+ boot_cpu_data.x86_model, -+ boot_cpu_data.x86_stepping)) { -+ pr_crit("Detected CPU family %d model %d stepping %d\n", -+ boot_cpu_data.x86, -+ boot_cpu_data.x86_model, -+ boot_cpu_data.x86_stepping); -+ mark_hardware_unsupported("Intel Processor"); -+ } -+ break; -+ -+ default: -+ pr_crit("Detected processor %s %s\n", -+ boot_cpu_data.x86_vendor_id, -+ boot_cpu_data.x86_model_id); -+ mark_hardware_unsupported("Processor"); -+ break; -+ } -+ -+ /* -+ * Due to the complexity of x86 lapic & ioapic enumeration, and PCI IRQ -+ * routing, ACPI is required for x86. acpi=off is a valid debug kernel -+ * parameter, so just print out a loud warning in case something -+ * goes wrong (which is most of the time). -+ */ -+ if (acpi_disabled && !guest) -+ pr_crit("ACPI has been disabled or is not available on this hardware. This may result in a single cpu boot, incorrect PCI IRQ routing, or boot failure.\n"); -+} -+ - /* - * Dump out kernel offset information on panic. - */ -@@ -1250,6 +1376,10 @@ void __init setup_arch(char **cmdline_p) - efi_apply_memmap_quirks(); - #endif - -+#ifdef CONFIG_RH_DISABLE_DEPRECATED -+ rh_check_supported(); -+#endif -+ - unwind_init(); - } - --- -2.26.2 - |