Igor MammedovandPaolo Bonzini 73c520b088 memory: reintroduce BQL-free fine-grained PIO/MMIO ...

This patch brings back Jan's idea [1] of BQL-free IO access

This will let us make access to ACPI PM/HPET timers cheaper,
and prevent BQL contention in case of workload that heavily
uses the timers with a lot of vCPUs.

1) 196ea13104 (memory: Add global-locking property to memory regions)
   ... de7ea885c5 (kvm: Switch to unlocked MMIO)

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Link: https://lore.kernel.org/r/20250814160600.2327672-2-imammedo@redhat.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

2025-08-29 12:48:14 +02:00

..

arch_init.c

system: Replace arch_type global by qemu_arch_available() helper

2025-03-11 20:03:26 +01:00

async-teardown.c

…

balloon.c

include: Rename sysemu/ -> system/

2024-12-20 17:44:56 +01:00

bootdevice.c

include: Rename sysemu/ -> system/

2024-12-20 17:44:56 +01:00

cpu-timers.c

include/exec: Split out icount.h

2025-04-23 14:08:44 -07:00

cpus.c

add cpu_test_interrupt()/cpu_set_interrupt() helpers and use them tree wide

2025-08-29 12:48:14 +02:00

datadir.c

pc-bios: Move device tree files in their own subdir

2025-04-25 17:09:58 +02:00

device_tree-stub.c

hw/core/machine.c: Make -machine dumpdtb=file.dtb with no DTB an error

2025-02-25 15:32:57 +00:00

device_tree.c

hw/core/machine.c: Make -machine dumpdtb=file.dtb with no DTB an error

2025-02-25 15:32:57 +00:00

dirtylimit.c

Merge tag 'pull-misc-2025-04-24' of https://repo.or.cz/qemu/armbru into staging

2025-04-24 13:44:57 -04:00

dma-helpers.c

include/exec: Split out icount.h

2025-04-23 14:08:44 -07:00

globals-target.c

system: Extract target-specific globals to their own compilation unit

2025-03-11 20:03:26 +01:00

globals.c

accel/tcg: Restrict 'icount_align_option' global to TCG

2025-03-06 15:46:17 +01:00

ioport.c

include/system: Move exec/ioport.h to system/ioport.h

2025-04-23 14:08:21 -07:00

main.c

system/main: comment lock rationale

2025-05-28 08:07:59 +01:00

memory_ldst.c.inc

memory: pass MemTxAttrs to memory_access_is_direct()

2025-02-12 11:33:05 -05:00

memory_mapping.c

include/system: Move exec/address-spaces.h to system/address-spaces.h

2025-04-23 14:08:21 -07:00

memory-internal.h

system/memory: Remove DEVICE_HOST_ENDIAN definition

2025-04-25 17:09:58 +02:00

memory.c

memory: reintroduce BQL-free fine-grained PIO/MMIO

2025-08-29 12:48:14 +02:00

meson.build

ram-block-attributes: Introduce RamBlockAttributes to manage RAMBlock with guest_memfd

2025-06-23 16:03:59 -04:00

physmem.c

memory: reintroduce BQL-free fine-grained PIO/MMIO

2025-08-29 12:48:14 +02:00

qdev-monitor.c

system/qdev: Remove pointless NULL check in qdev_device_add_from_qdict

2025-07-10 16:18:43 +01:00

qemu-seccomp.c

include: Rename sysemu/ -> system/

2024-12-20 17:44:56 +01:00

qtest.c

qemu: Convert target_words_bigendian() to TargetInfo API

2025-07-15 02:56:39 -04:00

ram-block-attributes.c

ram-block-attributes: Introduce RamBlockAttributes to manage RAMBlock with guest_memfd

2025-06-23 16:03:59 -04:00

rtc.c

include: Rename sysemu/ -> system/

2024-12-20 17:44:56 +01:00

runstate-action.c

include: Rename sysemu/ -> system/

2024-12-20 17:44:56 +01:00

runstate-hmp-cmds.c

qapi: Move include/qapi/qmp/ to include/qobject/

2025-02-10 15:33:16 +01:00

runstate.c

Merge tag 'accel-20250715' of https://github.com/philmd/qemu into staging

2025-07-16 07:13:40 -04:00

tpm-hmp-cmds.c

…

tpm.c

tpm: "qemu -tpmdev help" should return success

2025-07-15 10:22:33 +04:00

trace-events

ram-block-attributes: Introduce RamBlockAttributes to manage RAMBlock with guest_memfd

2025-06-23 16:03:59 -04:00

trace.h

…

vl.c

hw/nvram/fw_cfg: Remove legacy FW_CFG_ORDER_OVERRIDE

2025-05-30 09:52:08 +02:00

watchpoint.c

include/exec: Split out watchpoint.h

2025-04-23 14:08:36 -07:00