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| author | Stefano Garzarella <sgarzare@redhat.com> | 2019-01-18 13:01:41 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2019-02-05 16:50:17 +0100 |
| commit | 2785dc7b1786a833ca5ad6d8d39d64eb82e2cddc (patch) | |
| tree | 0eb715dd8a0ba1312d325fc7ea7ba3351d49fcaf /pc-bios/optionrom/Makefile | |
| parent | 6dfa01437bea02b2e5ae14f9e163e55610ead6fe (diff) | |
| download | qemu-2785dc7b1786a833ca5ad6d8d39d64eb82e2cddc.zip qemu-2785dc7b1786a833ca5ad6d8d39d64eb82e2cddc.tar.gz qemu-2785dc7b1786a833ca5ad6d8d39d64eb82e2cddc.tar.bz2 | |
optionrom: add new PVH option rom
The new pvh.bin option rom can be used with SeaBIOS to boot
uncompressed kernel using the x86/HVM direct boot ABI.
pvh.S contains the entry point of the option rom. It runs
in real mode, loads the e820 table querying the BIOS, and
then it switches to 32bit protected mode and jumps to the
pvh_load_kernel() written in pvh_main.c.
pvh_load_kernel() loads the cmdline and kernel entry_point
using fw_cfg, then it looks for RSDP, fills the
hvm_start_info required by x86/HVM ABI, and finally jumps
to the kernel entry_point.
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
Diffstat (limited to 'pc-bios/optionrom/Makefile')
| -rw-r--r-- | pc-bios/optionrom/Makefile | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/pc-bios/optionrom/Makefile b/pc-bios/optionrom/Makefile index a9a9e5e..e33a24d 100644 --- a/pc-bios/optionrom/Makefile +++ b/pc-bios/optionrom/Makefile @@ -37,7 +37,7 @@ Wa = -Wa, ASFLAGS += -32 QEMU_CFLAGS += $(call cc-c-option, $(QEMU_CFLAGS), $(Wa)-32) -build-all: multiboot.bin linuxboot.bin linuxboot_dma.bin kvmvapic.bin +build-all: multiboot.bin linuxboot.bin linuxboot_dma.bin kvmvapic.bin pvh.bin # suppress auto-removal of intermediate files .SECONDARY: @@ -46,6 +46,9 @@ build-all: multiboot.bin linuxboot.bin linuxboot_dma.bin kvmvapic.bin %.o: %.S $(call quiet-command,$(CPP) $(QEMU_INCLUDES) $(QEMU_DGFLAGS) -c -o - $< | $(AS) $(ASFLAGS) -o $@,"AS","$(TARGET_DIR)$@") +pvh.img: pvh.o pvh_main.o + $(call quiet-command,$(LD) $(LDFLAGS_NOPIE) -m $(LD_I386_EMULATION) -T $(SRC_PATH)/pc-bios/optionrom/flat.lds -s -o $@ $^,"BUILD","$(TARGET_DIR)$@") + %.img: %.o $(call quiet-command,$(LD) $(LDFLAGS_NOPIE) -m $(LD_I386_EMULATION) -T $(SRC_PATH)/pc-bios/optionrom/flat.lds -s -o $@ $<,"BUILD","$(TARGET_DIR)$@") |