diff options
Diffstat (limited to 'arch/x86/mm')
| -rw-r--r-- | arch/x86/mm/fault.c | 2 | ||||
| -rw-r--r-- | arch/x86/mm/init_64.c | 6 | ||||
| -rw-r--r-- | arch/x86/mm/mem_encrypt_amd.c | 11 | ||||
| -rw-r--r-- | arch/x86/mm/numa.c | 34 | ||||
| -rw-r--r-- | arch/x86/mm/pat/memtype.c | 2 | ||||
| -rw-r--r-- | arch/x86/mm/pat/set_memory.c | 4 | ||||
| -rw-r--r-- | arch/x86/mm/pti.c | 2 | ||||
| -rw-r--r-- | arch/x86/mm/tlb.c | 2 |
8 files changed, 23 insertions, 40 deletions
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c index ab778eac1952..679b09cfe241 100644 --- a/arch/x86/mm/fault.c +++ b/arch/x86/mm/fault.c @@ -1370,6 +1370,8 @@ void do_user_addr_fault(struct pt_regs *regs, goto done; } count_vm_vma_lock_event(VMA_LOCK_RETRY); + if (fault & VM_FAULT_MAJOR) + flags |= FAULT_FLAG_TRIED; /* Quick path to respond to signals */ if (fault_signal_pending(fault, regs)) { diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index a190aae8ceaf..a0dffaca6d2b 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -1013,7 +1013,7 @@ static void __meminit free_pte_table(pte_t *pte_start, pmd_t *pmd) return; } - /* free a pte talbe */ + /* free a pte table */ free_pagetable(pmd_page(*pmd), 0); spin_lock(&init_mm.page_table_lock); pmd_clear(pmd); @@ -1031,7 +1031,7 @@ static void __meminit free_pmd_table(pmd_t *pmd_start, pud_t *pud) return; } - /* free a pmd talbe */ + /* free a pmd table */ free_pagetable(pud_page(*pud), 0); spin_lock(&init_mm.page_table_lock); pud_clear(pud); @@ -1049,7 +1049,7 @@ static void __meminit free_pud_table(pud_t *pud_start, p4d_t *p4d) return; } - /* free a pud talbe */ + /* free a pud table */ free_pagetable(p4d_page(*p4d), 0); spin_lock(&init_mm.page_table_lock); p4d_clear(p4d); diff --git a/arch/x86/mm/mem_encrypt_amd.c b/arch/x86/mm/mem_encrypt_amd.c index a68f2dda0948..70b91de2e053 100644 --- a/arch/x86/mm/mem_encrypt_amd.c +++ b/arch/x86/mm/mem_encrypt_amd.c @@ -32,6 +32,7 @@ #include <asm/msr.h> #include <asm/cmdline.h> #include <asm/sev.h> +#include <asm/ia32.h> #include "mm_internal.h" @@ -481,6 +482,16 @@ void __init sme_early_init(void) */ if (sev_status & MSR_AMD64_SEV_ES_ENABLED) x86_cpuinit.parallel_bringup = false; + + /* + * The VMM is capable of injecting interrupt 0x80 and triggering the + * compatibility syscall path. + * + * By default, the 32-bit emulation is disabled in order to ensure + * the safety of the VM. + */ + if (sev_status & MSR_AMD64_SEV_ENABLED) + ia32_disable(); } void __init mem_encrypt_free_decrypted_mem(void) diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c index b29ceb19e46e..adc497b93f03 100644 --- a/arch/x86/mm/numa.c +++ b/arch/x86/mm/numa.c @@ -450,37 +450,6 @@ int __node_distance(int from, int to) EXPORT_SYMBOL(__node_distance); /* - * Sanity check to catch more bad NUMA configurations (they are amazingly - * common). Make sure the nodes cover all memory. - */ -static bool __init numa_meminfo_cover_memory(const struct numa_meminfo *mi) -{ - u64 numaram, e820ram; - int i; - - numaram = 0; - for (i = 0; i < mi->nr_blks; i++) { - u64 s = mi->blk[i].start >> PAGE_SHIFT; - u64 e = mi->blk[i].end >> PAGE_SHIFT; - numaram += e - s; - numaram -= __absent_pages_in_range(mi->blk[i].nid, s, e); - if ((s64)numaram < 0) - numaram = 0; - } - - e820ram = max_pfn - absent_pages_in_range(0, max_pfn); - - /* We seem to lose 3 pages somewhere. Allow 1M of slack. */ - if ((s64)(e820ram - numaram) >= (1 << (20 - PAGE_SHIFT))) { - printk(KERN_ERR "NUMA: nodes only cover %LuMB of your %LuMB e820 RAM. Not used.\n", - (numaram << PAGE_SHIFT) >> 20, - (e820ram << PAGE_SHIFT) >> 20); - return false; - } - return true; -} - -/* * Mark all currently memblock-reserved physical memory (which covers the * kernel's own memory ranges) as hot-unswappable. */ @@ -585,7 +554,8 @@ static int __init numa_register_memblks(struct numa_meminfo *mi) return -EINVAL; } } - if (!numa_meminfo_cover_memory(mi)) + + if (!memblock_validate_numa_coverage(SZ_1M)) return -EINVAL; /* Finally register nodes. */ diff --git a/arch/x86/mm/pat/memtype.c b/arch/x86/mm/pat/memtype.c index de10800cd4dd..0904d7e8e126 100644 --- a/arch/x86/mm/pat/memtype.c +++ b/arch/x86/mm/pat/memtype.c @@ -14,7 +14,7 @@ * memory ranges: uncached, write-combining, write-through, write-protected, * and the most commonly used and default attribute: write-back caching. * - * PAT support supercedes and augments MTRR support in a compatible fashion: MTRR is + * PAT support supersedes and augments MTRR support in a compatible fashion: MTRR is * a hardware interface to enumerate a limited number of physical memory ranges * and set their caching attributes explicitly, programmed into the CPU via MSRs. * Even modern CPUs have MTRRs enabled - but these are typically not touched diff --git a/arch/x86/mm/pat/set_memory.c b/arch/x86/mm/pat/set_memory.c index bda9f129835e..e9b448d1b1b7 100644 --- a/arch/x86/mm/pat/set_memory.c +++ b/arch/x86/mm/pat/set_memory.c @@ -1621,7 +1621,7 @@ repeat: /* * We need to keep the pfn from the existing PTE, - * after all we're only going to change it's attributes + * after all we're only going to change its attributes * not the memory it points to */ new_pte = pfn_pte(pfn, new_prot); @@ -2447,7 +2447,7 @@ int __init kernel_unmap_pages_in_pgd(pgd_t *pgd, unsigned long address, /* * The typical sequence for unmapping is to find a pte through * lookup_address_in_pgd() (ideally, it should never return NULL because - * the address is already mapped) and change it's protections. As pfn is + * the address is already mapped) and change its protections. As pfn is * the *target* of a mapping, it's not useful while unmapping. */ struct cpa_data cpa = { diff --git a/arch/x86/mm/pti.c b/arch/x86/mm/pti.c index 5dd733944629..669ba1c345b3 100644 --- a/arch/x86/mm/pti.c +++ b/arch/x86/mm/pti.c @@ -6,7 +6,7 @@ * * https://github.com/IAIK/KAISER * - * The original work was written by and and signed off by for the Linux + * The original work was written by and signed off by for the Linux * kernel by: * * Signed-off-by: Richard Fellner <richard.fellner@student.tugraz.at> diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c index 453ea95b667d..5768d386efab 100644 --- a/arch/x86/mm/tlb.c +++ b/arch/x86/mm/tlb.c @@ -355,7 +355,7 @@ static void l1d_flush_evaluate(unsigned long prev_mm, unsigned long next_mm, /* * Validate that it is not running on an SMT sibling as this would - * make the excercise pointless because the siblings share L1D. If + * make the exercise pointless because the siblings share L1D. If * it runs on a SMT sibling, notify it with SIGBUS on return to * user/guest */ |