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[Qemu-devel] [PULL v2 6/7] Enable fw_cfg DMA interface for x86
From: |
Gerd Hoffmann |
Subject: |
[Qemu-devel] [PULL v2 6/7] Enable fw_cfg DMA interface for x86 |
Date: |
Tue, 20 Oct 2015 08:11:31 +0200 |
From: Marc MarĂ <address@hidden>
Enable the fw_cfg DMA interface for all the x86 platforms.
Based on Gerd Hoffman's initial implementation.
Signed-off-by: Marc MarĂ <address@hidden>
Reviewed-by: Laszlo Ersek <address@hidden>
Signed-off-by: Gerd Hoffmann <address@hidden>
---
hw/i386/pc.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index 682867a..b25a872 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -752,14 +752,15 @@ static void pc_build_smbios(FWCfgState *fw_cfg)
}
}
-static FWCfgState *bochs_bios_init(void)
+static FWCfgState *bochs_bios_init(AddressSpace *as)
{
FWCfgState *fw_cfg;
uint64_t *numa_fw_cfg;
int i, j;
unsigned int apic_id_limit = pc_apic_id_limit(max_cpus);
- fw_cfg = fw_cfg_init_io(BIOS_CFG_IOPORT);
+ fw_cfg = fw_cfg_init_io_dma(BIOS_CFG_IOPORT, BIOS_CFG_IOPORT + 4, as);
+
/* FW_CFG_MAX_CPUS is a bit confusing/problematic on x86:
*
* SeaBIOS needs FW_CFG_MAX_CPUS for CPU hotplug, but the CPU hotplug
@@ -1393,7 +1394,8 @@ FWCfgState *pc_memory_init(PCMachineState *pcms,
option_rom_mr,
1);
- fw_cfg = bochs_bios_init();
+ fw_cfg = bochs_bios_init(&address_space_memory);
+
rom_set_fw(fw_cfg);
if (guest_info->has_reserved_memory && pcms->hotplug_memory.base) {
--
1.8.3.1
- [Qemu-devel] [PULL v2 0/7] fw_cfg: add dma interface, add strings via cmdline., Gerd Hoffmann, 2015/10/20
- [Qemu-devel] [PULL v2 6/7] Enable fw_cfg DMA interface for x86,
Gerd Hoffmann <=
- [Qemu-devel] [PULL v2 1/7] fw_cfg: insert string blobs via qemu cmdline, Gerd Hoffmann, 2015/10/20
- [Qemu-devel] [PULL v2 2/7] fw_cfg: document fw_cfg_modify_iXX() update functions, Gerd Hoffmann, 2015/10/20
- [Qemu-devel] [PULL v2 3/7] fw_cfg DMA interface documentation, Gerd Hoffmann, 2015/10/20
- [Qemu-devel] [PULL v2 7/7] fw_cfg: Define a static signature to be returned on DMA port reads, Gerd Hoffmann, 2015/10/20
- [Qemu-devel] [PULL v2 5/7] Enable fw_cfg DMA interface for ARM, Gerd Hoffmann, 2015/10/20
- [Qemu-devel] [PULL v2 4/7] Implement fw_cfg DMA interface, Gerd Hoffmann, 2015/10/20
- Re: [Qemu-devel] [PULL v2 0/7] fw_cfg: add dma interface, add strings via cmdline., Peter Maydell, 2015/10/20