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[Qemu-devel] [PATCH v5 5/6] Enable fw_cfg DMA interface for x86
From: |
Marc Marí |
Subject: |
[Qemu-devel] [PATCH v5 5/6] Enable fw_cfg DMA interface for x86 |
Date: |
Thu, 8 Oct 2015 17:02:57 +0200 |
Enable the fw_cfg DMA interface for all the x86 platforms.
Based on Gerd Hoffman's initial implementation.
Signed-off-by: Marc Marí <address@hidden>
Reviewed-by: Laszlo Ersek <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 9275297..da27553 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
@@ -1389,7 +1390,8 @@ 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) {
--
2.4.3
- [Qemu-devel] [cross-post] QEMU fw_cfg DMA interface, Marc Marí, 2015/10/08
- [Qemu-devel] [PATCH v5 0/6] fw_cfg DMA interface, Marc Marí, 2015/10/08
- [Qemu-devel] [PATCH v5 5/6] Enable fw_cfg DMA interface for x86,
Marc Marí <=
- [Qemu-devel] [PATCH v5 3/6] Implement fw_cfg DMA interface, Marc Marí, 2015/10/08
- [Qemu-devel] [PATCH v5 2/6] fw_cfg DMA interface documentation, Marc Marí, 2015/10/08
- Re: [Qemu-devel] [PATCH v5 0/6] fw_cfg DMA interface, Gerd Hoffmann, 2015/10/09
- [Qemu-devel] [PATCH v5 1/6] fw_cfg: document fw_cfg_modify_iXX() update functions, Marc Marí, 2015/10/09
- [Qemu-devel] [PATCH v5 4/6] Enable fw_cfg DMA interface for ARM, Marc Marí, 2015/10/09
- [Qemu-devel] [PATCH v5 6/6] fw_cfg: Define a static signature to be returned on DMA port reads, Marc Marí, 2015/10/09