This patch series mainly add MP support to QEMU as well as some
other necessary fixes for x86.
Verified by booting Linux kernel on QEMU i440FX and Q35, and make
sure I/O APIC interrupt is being used by the kernel with the help
of MP table provided by U-Boot.
This series is the prerequisite for the follow-up ACPI support
which is currently being worked on by Saket.
It seems that QEMU multicore emulation is sort of random, as the
mp_init() does not realibly succeed on different machines with
previous patch, this v2 does not include that patch, instead it
just enabled MP table with UP mode.
Changes in v3:
- Remove the call to device_probe()
- Add a comment to explain why return value is not checked
Changes in v2:
- Drop patches that are already applied
- Add a TODO comment above mp_determine_pci_dstirq()
- New patch to allow cpu-x86 driver to be probed for UP
- Drop QEMU mp_init patch
- Change /cpus node to include just one cpu
- New patch to reserve PCIe ECAM address range in the E820 table
Bin Meng (7):
x86: mpspec: Allow platform to determine how PIRQ is connected to I/O
APIC
x86: mpspec: Move writing ISA interrupt entry after PCI
x86: qemu: Enable I/O APIC chip select on PIIX3
x86: Allow cpu-x86 driver to be probed for UP
x86: qemu: Enable writing MP table
x86: qemu: Turn on PCIe ECAM address range decoding on Q35
x86: Reserve PCIe ECAM address range in the E820 table
arch/x86/Kconfig | 10 +++++++
arch/x86/cpu/cpu.c | 9 +++++++
arch/x86/cpu/qemu/pci.c | 45 ++++++++++++++++++++++++++++---
arch/x86/dts/qemu-x86_i440fx.dts | 12 +++++++++
arch/x86/dts/qemu-x86_q35.dts | 12 +++++++++
arch/x86/include/asm/arch-qemu/qemu.h | 10 ++++++-
arch/x86/include/asm/mpspec.h | 17 ++++++++++++
arch/x86/lib/fsp/fsp_dram.c | 6 +++++
arch/x86/lib/mpspec.c | 50 ++++++++++++++++++++++++++---------
arch/x86/lib/zimage.c | 5 +++-
configs/qemu-x86_defconfig | 3 +++
11 files changed, 161 insertions(+), 18 deletions(-)
--
1.8.2.1
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