diff options
Diffstat (limited to 'arch/x86/xen')
| -rw-r--r-- | arch/x86/xen/enlighten.c | 5 | ||||
| -rw-r--r-- | arch/x86/xen/mmu.c | 1 | ||||
| -rw-r--r-- | arch/x86/xen/smp.c | 2 |
3 files changed, 6 insertions, 2 deletions
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index ec1d5c46e58f..08faa61de5f7 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -710,7 +710,7 @@ static void load_TLS_descriptor(struct thread_struct *t, *shadow = t->tls_array[i]; - gdt = get_cpu_gdt_table(cpu); + gdt = get_cpu_gdt_rw(cpu); maddr = arbitrary_virt_to_machine(&gdt[GDT_ENTRY_TLS_MIN+i]); mc = __xen_mc_entry(0); @@ -1545,6 +1545,9 @@ asmlinkage __visible void __init xen_start_kernel(void) */ xen_initial_gdt = &per_cpu(gdt_page, 0); + /* GDT can only be remapped RO */ + pg_fixmap_gdt_flags = PAGE_KERNEL_RO; + xen_smp_init(); #ifdef CONFIG_ACPI_NUMA diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index 37cb5aad71de..ebbfe00133f7 100644 --- a/arch/x86/xen/mmu.c +++ b/arch/x86/xen/mmu.c @@ -2326,6 +2326,7 @@ static void xen_set_fixmap(unsigned idx, phys_addr_t phys, pgprot_t prot) #endif case FIX_TEXT_POKE0: case FIX_TEXT_POKE1: + case FIX_GDT_REMAP_BEGIN ... FIX_GDT_REMAP_END: /* All local page mappings */ pte = pfn_pte(phys, prot); break; diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c index 7ff2f1bfb7ec..eaa36162ed4a 100644 --- a/arch/x86/xen/smp.c +++ b/arch/x86/xen/smp.c @@ -392,7 +392,7 @@ cpu_initialize_context(unsigned int cpu, struct task_struct *idle) if (ctxt == NULL) return -ENOMEM; - gdt = get_cpu_gdt_table(cpu); + gdt = get_cpu_gdt_rw(cpu); #ifdef CONFIG_X86_32 ctxt->user_regs.fs = __KERNEL_PERCPU; |