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918a7f706b
qemu/hw/i386
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Marek Marczykowski-Górecki 918a7f706b i386: load kernel on xen using DMA 
Kernel on Xen is loaded via fw_cfg. Previously it used non-DMA version,
which loaded the kernel (and initramfs) byte by byte. Change this
to DMA, to load in bigger chunks.
This change alone reduces load time of a (big) kernel+initramfs from
~10s down to below 1s.

This change was suggested initially here:
https://lore.kernel.org/xen-devel/20180216204031.000052e9@gmail.com/
Apparently this alone is already enough to get massive speedup.

Signed-off-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
Message-Id: <20210426034709.595432-1-marmarek@invisiblethingslab.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
2024-03-12 14:13:08 +00:00
..
kvm hw/i386/pc: Rename "bus" attribute to "pcibus" 2024-02-27 09:37:30 +01:00
xen hw/xen/hvm: Get target page size at runtime 2024-03-09 18:51:45 +01:00
acpi-build.c hw/i386/pc: Rename "bus" attribute to "pcibus" 2024-02-27 09:37:30 +01:00
acpi-build.h hw/acpi/ich9: Enable ACPI PCI hot-plug 2021-07-16 04:33:35 -04:00
acpi-common.c Misc HW patch queue 2024-02-22 15:44:29 +00:00
acpi-common.h hw/i386/acpi: Declare pc_madt_cpu_entry() in 'acpi-common.h' 2024-02-20 20:34:21 +03:00
acpi-microvm.c hw/i386/acpi-microvm.c: Use common function to add virtio in DSDT 2024-01-10 18:47:46 +10:00
acpi-microvm.h microvm/acpi: add minimal acpi support 2020-09-17 14:16:19 +02:00
amd_iommu-stub.c amd_iommu: report x2APIC support to the operating system 2024-02-14 06:09:32 -05:00
amd_iommu.c hw/i386/pc: Rename "bus" attribute to "pcibus" 2024-02-27 09:37:30 +01:00
amd_iommu.h amd_iommu: report x2APIC support to the operating system 2024-02-14 06:09:32 -05:00
e820_memory_layout.c hw/i386/e820: remove legacy reserved entries for e820 2022-11-02 06:56:31 -04:00
e820_memory_layout.h hw/i386/e820: remove legacy reserved entries for e820 2022-11-02 06:56:31 -04:00
fw_cfg.c hw/i386/pc: Defer smbios_set_defaults() to machine_done 2024-02-22 12:47:40 +01:00
fw_cfg.h hw/i386/pc: Defer smbios_set_defaults() to machine_done 2024-02-22 12:47:40 +01:00
intel_iommu_internal.h intel-iommu: Report interrupt remapping faults, fix return value 2023-10-22 05:18:17 -04:00
intel_iommu.c hw/i386/pc: Rename "bus" attribute to "pcibus" 2024-02-27 09:37:30 +01:00
Kconfig hw/i386: Activate IOMMUFD for q35 machines 2023-12-19 19:03:38 +01:00
meson.build hw/i386: Rename kvmvapic.c -> vapic.c 2024-03-09 18:51:45 +01:00
microvm-dt.c hw/rtc/mc146818rtc: QOM'ify io_base offset 2022-06-11 11:44:50 +02:00
microvm-dt.h microvm: add device tree support. 2021-11-02 17:24:17 +01:00
microvm.c hw/i386/x86: Let ioapic_init_gsi() take parent as pointer 2024-02-27 09:37:30 +01:00
multiboot.c bulk: Rename TARGET_FMT_plx -> HWADDR_FMT_plx 2023-01-18 11:14:34 +01:00
multiboot.h target/i386: use DMA-enabled multiboot ROM for new-enough QEMU machine types 2021-11-02 15:57:27 +01:00
pc_piix.c hw/i386/pc: Have pc_init_isa() pass a NULL pci_type argument 2024-03-09 18:51:45 +01:00
pc_q35.c hw/i386/pc: Populate RTC attribute directly 2024-02-27 09:37:30 +01:00
pc_sysfw_ovmf-stubs.c hw/i386: Introduce X86_FW_OVMF Kconfig symbol 2021-07-14 22:28:58 +02:00
pc_sysfw_ovmf.c hw/i386: Replace magic number with field length calculation 2022-03-06 05:08:23 -05:00
pc_sysfw.c hw/i386/pc_sysfw: Use qdev_is_realized() instead of QOM API 2024-02-22 12:47:40 +01:00
pc.c i386: load kernel on xen using DMA 2024-03-12 14:13:08 +00:00
port92.c hw/i386/port92: Add missing 'hw/isa/isa.h' header 2024-02-20 20:34:21 +03:00
sgx-epc.c Mark remaining global TypeInfo instances as const 2022-02-21 13:30:20 +00:00
sgx-stub.c target/i386: the sgx_epc_get_section stub is reachable 2023-12-31 09:11:27 +01:00
sgx.c hw/i386/sgx: Use QDev API 2024-02-27 09:37:30 +01:00
trace-events vmmouse: replace DPRINTF with tracing 2023-09-12 10:37:01 +04:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
vapic.c hw/i386: Rename kvmvapic.c -> vapic.c 2024-03-09 18:51:45 +01:00
vmmouse.c hw/i386: Constify VMState 2023-12-29 11:17:30 +11:00
vmport.c Do not include cpu.h if it's not really necessary 2021-05-02 17:24:51 +02:00
x86-iommu-stub.c hw/i386/pc: Remove x86_iommu_get_type() 2021-11-01 18:49:10 -04:00
x86-iommu.c hw/i386/pc: Rename "bus" attribute to "pcibus" 2024-02-27 09:37:30 +01:00
x86.c hw/i386/x86: Let ioapic_init_gsi() take parent as pointer 2024-02-27 09:37:30 +01:00