search for: bringup_idt_table

...p_idt_descr = { .address = 0, /* Set at runtime */ }; +#ifdef CONFIG_AMD_MEM_ENCRYPT +static void set_bringup_idt_handler(int n, void *handler) +{ + struct idt_data data; + gate_desc desc; + + init_idt_data(&data, n, handler); + idt_init_desc(&desc, &data); + native_write_idt_entry(bringup_idt_table, n, &desc); +} +#endif + /* This runs while still in the direct mapping */ static void startup_64_load_idt(unsigned long physbase) { struct desc_ptr *desc = fixup_pointer(&bringup_idt_descr, physbase); + void __maybe_unused *handler; + +#ifdef CONFIG_AMD_MEM_ENCRYPT + /* VMM Communicat...

...tup_64_load_idt(unsigned long physbase) /* This is used when running on kernel addresses */ void early_setup_idt(void) { +#ifdef CONFIG_AMD_MEM_ENCRYPT + /* VMM Communication Exception */ + set_bringup_idt_handler(X86_TRAP_VC, vc_boot_ghcb); +#endif + bringup_idt_descr.address = (unsigned long)bringup_idt_table; native_load_idt(&bringup_idt_descr); } diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S index 2e5aa03b4321..41057ff79284 100644 --- a/arch/x86/kernel/head_64.S +++ b/arch/x86/kernel/head_64.S @@ -279,6 +279,37 @@ SYM_CODE_START(start_cpu0) movq initial_stack(%rip), %rsp...

From: Joerg Roedel <jroedel at suse.de> Hi, here is a new version of the SEV-ES Guest Support patches for x86. The previous versions can be found as a linked list starting here: https://lore.kernel.org/lkml/20200824085511.7553-1-joro at 8bytes.org/ I updated the patch-set based on ther review comments I got and the discussions around it. Another important change is that the early IDT

From: Joerg Roedel <jroedel at suse.de> Hi, here is a new version of the SEV-ES Guest Support patches for x86. The previous versions can be found as a linked list starting here: https://lore.kernel.org/lkml/20200824085511.7553-1-joro at 8bytes.org/ I updated the patch-set based on ther review comments I got and the discussions around it. Another important change is that the early IDT