This series brings multi-vcpu support to UEFI tests on x86. Most of the necessary AP bringup code already exists within kvm-unit-tests' cstart64.S, and has now been either rewritten in C or moved to a common location to be shared between EFI and non-EFI test builds. A call gate is used to transition from 16-bit to 32-bit mode, since EFI may not load the 32-bit entrypoint low enough to be reachable from the SIPI vector. Git branch: https://github.com/varadgautam/kvm-unit-tests/commits/ap-boot-v1 Varad Gautam (9): x86: Move ap_init() to smp.c x86: Move load_idt() to desc.c x86: desc: Split IDT entry setup into a generic helper x86: efi, smp: Transition APs from 16-bit to 32-bit mode x86: Move 32-bit bringup routines to start32.S x86: efi, smp: Transition APs from 32-bit to 64-bit mode x86: Move load_gdt_tss() to desc.c x86: Provide a common 64-bit AP entrypoint for EFI and non-EFI x86: setup: Serialize ap_start64 with a spinlock lib/x86/asm/setup.h | 3 ++ lib/x86/desc.c | 39 +++++++++++--- lib/x86/desc.h | 3 ++ lib/x86/setup.c | 65 +++++++++++++++++----- lib/x86/smp.c | 89 +++++++++++++++++++++++++++++- lib/x86/smp.h | 1 + x86/cstart64.S | 111 ++------------------------------------ x86/efi/crt0-efi-x86_64.S | 3 ++ x86/efi/efistart64.S | 73 ++++++++++++++++++++----- x86/start32.S | 102 +++++++++++++++++++++++++++++++++++ 10 files changed, 348 insertions(+), 141 deletions(-) create mode 100644 x86/start32.S -- 2.32.0
