From: Paolo Bonzini <pbonzini@redhat.com>
To: qemu-devel@nongnu.org
Cc: adam@l4re.org, marcus.haehnel@kernkonzept.com
Subject: [PATCH v2 0/3] multiboot: Use DMA instead port-based transfer
Date: Wed, 20 Oct 2021 16:02:41 +0200 [thread overview]
Message-ID: <20211020140244.485249-1-pbonzini@redhat.com> (raw)
An updated version of the patch at
https://patchew.org/QEMU/YWM6jboU9fUib6Iy@os.inf.tu-dresden.de/,
which includes the necessary glue for compatibility with older
machine types. When fw_cfg DMA is disabled, the existing ROM
is used instead.
Marcus Hähnel (1):
optionrom: add a DMA-enabled multiboot ROM
Paolo Bonzini (2):
target/i386: move linuxboot_dma_enabled to X86MachineState
target/i386: use DMA-enabled multiboot ROM for new-enough QEMU machine
types
hw/i386/microvm.c | 5 ++-
hw/i386/multiboot.c | 10 ++++-
hw/i386/multiboot.h | 4 +-
hw/i386/pc.c | 8 ++--
hw/i386/pc_piix.c | 3 +-
hw/i386/pc_q35.c | 3 +-
hw/i386/x86.c | 7 ++--
include/hw/i386/pc.h | 3 --
include/hw/i386/x86.h | 5 ++-
pc-bios/meson.build | 1 +
pc-bios/multiboot_dma.bin | Bin 0 -> 1024 bytes
pc-bios/optionrom/Makefile | 4 +-
pc-bios/optionrom/multiboot.S | 4 +-
pc-bios/optionrom/multiboot_dma.S | 2 +
pc-bios/optionrom/optionrom.h | 66 ++++++++++++++++++++++++++++++
15 files changed, 102 insertions(+), 23 deletions(-)
create mode 100644 pc-bios/multiboot_dma.bin
create mode 100644 pc-bios/optionrom/multiboot_dma.S
--
2.31.1
next reply other threads:[~2021-10-20 14:11 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-20 14:02 Paolo Bonzini [this message]
2021-10-20 14:02 ` [PATCH 1/3] target/i386: move linuxboot_dma_enabled to X86MachineState Paolo Bonzini
2021-10-20 19:13 ` Philippe Mathieu-Daudé
2021-10-20 14:02 ` [PATCH 2/3] optionrom: add a DMA-enabled multiboot ROM Paolo Bonzini
2021-10-20 22:08 ` Philippe Mathieu-Daudé
2021-10-20 14:02 ` [PATCH 3/3] target/i386: use DMA-enabled multiboot ROM for new-enough QEMU machine types Paolo Bonzini
2021-10-20 19:19 ` Philippe Mathieu-Daudé
2021-10-21 7:23 ` [PATCH v2 0/3] multiboot: Use DMA instead port-based transfer Stefano Garzarella
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