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qemu-cr16/system
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Igor Mammedov 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 qemu/osdep: Add excluded fd parameter to qemu_close_all_open_fd() 2024-08-05 08:21:59 +10:00
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 Miscellaneous patches for 2025-04-24 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-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
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
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 Accelerators patches 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