Marcus Hähnel 48972f8cad optionrom: add a DMA-enabled multiboot ROM ... Add a new option rom for the multiboot loader, using DMA transfers to copy data instead of "rep insb". This significantly lowers QEMU's startup latency by a factor of about 40, for example, going from 30sec to 0.8sec when loading modules of 120MB in size. Signed-off-by: Marcus Hähnel <marcus.haehnel@kernkonzept.com> Signed-off-by: Adam Lackorzynski <adam@l4re.org> [Modified to keep the non-DMA code depending on #ifdef USE_FW_CFG_DMA; do not write below stack. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2021-11-02 15:57:27 +01:00
..
code16gcc.h
flat.lds
kvmvapic.S
linuxboot_dma.c
linuxboot.S
Makefile	optionrom: add a DMA-enabled multiboot ROM	2021-11-02 15:57:27 +01:00
multiboot_dma.S	optionrom: add a DMA-enabled multiboot ROM	2021-11-02 15:57:27 +01:00
multiboot.S	optionrom: add a DMA-enabled multiboot ROM	2021-11-02 15:57:27 +01:00
optionrom.h	optionrom: add a DMA-enabled multiboot ROM	2021-11-02 15:57:27 +01:00
optrom_fw_cfg.h
optrom.h
pvh_main.c
pvh.S