Zide Chen 11c2f3eabb hv: check bitmap before calling bitmap_test_and_clear_lock() ...

The locked btr instruction is expensive.  This patch changes the
logic to ensure that the bitmap is non-zero before executing
bitmap_test_and_clear_lock().

The VMX transition time gets significant improvement.  SOS running
on TGL, the CPUID roundtrip reduces from ~2400 cycles to ~2000 cycles.

Tracked-On: #6289
Signed-off-by: Zide Chen <zide.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>

2021-09-02 16:09:33 +08:00

..

boot

HV: modularization: rename multiboot.h to boot.h

2021-06-11 10:06:02 +08:00

configs

hv: Move uuid_is_equal to util.h

2021-08-26 09:24:50 +08:00

guest

hv: check bitmap before calling bitmap_test_and_clear_lock()

2021-09-02 16:09:33 +08:00

lib

HV: rewrite memcpy_s to be iso c11 compliant

2020-06-08 13:30:04 +08:00

seed

HV: modularization: use cmdline char array in acrn boot info

2021-06-11 10:06:02 +08:00

cpu_caps.c

hv: remove xsave dependence

2021-08-10 16:36:15 +08:00

cpu_state_tbl.c

hv: dm: Use new power management data structures

2021-07-15 11:53:54 +08:00

cpu.c

hv: Pass-through IA32_TSC_AUX MSR to L1 guest

2021-08-26 09:25:54 +08:00

e820.c

HV: init hv_e820 from efi mmap if boot from uefi

2021-06-11 10:06:02 +08:00

exception.c

hv: mod: do not use explicit arch name when including headers

2021-05-08 11:15:46 +08:00

gdt.c

hv: mod: do not use explicit arch name when including headers

2021-05-08 11:15:46 +08:00

idt.S

hv: mod: do not use explicit arch name when including headers

2021-05-08 11:15:46 +08:00

init.c

HV: modularization: add boot.c to wrap multiboot module

2021-06-11 10:06:02 +08:00

ioapic.c

hv: paging: rename ppt_set/clear_ATTR to set_paging_ATTR

2021-05-14 09:18:00 +08:00

irq.c

hv: mod: do not use explicit arch name when including headers

2021-05-08 11:15:46 +08:00

lapic.c

hv/mod_timer: separate delay functions from the timer module

2021-05-18 16:43:28 +08:00

mmu.c

hv: initialize host IA32_PAT MSR

2021-09-02 09:15:39 +08:00

nmi.c

hv: mod: do not use explicit arch name when including headers

2021-05-08 11:15:46 +08:00

notify.c

hv: mod: do not use explicit arch name when including headers

2021-05-08 11:15:46 +08:00

page.c

hv: mod: do not use explicit arch name when including headers

2021-05-08 11:15:46 +08:00

pagetable.c

hv: mod: do not use explicit arch name when including headers

2021-05-08 11:15:46 +08:00

platform_caps.c

hv: mod: do not use explicit arch name when including headers

2021-05-08 11:15:46 +08:00

pm.c

hv: dm: Use new power management data structures

2021-07-15 11:53:54 +08:00

rdt.c

hv: some coding style fixes

2021-05-12 16:50:34 +08:00

rtcm.c

hv: update RTCT ACPI table detecting

2021-06-01 08:22:20 +08:00

sched.S

…

security.c

hv: mod: do not use explicit arch name when including headers

2021-05-08 11:15:46 +08:00

sgx.c

hv: mod: do not use explicit arch name when including headers

2021-05-08 11:15:46 +08:00

trampoline.c

hv: cache: wrap common APIs

2021-05-14 09:18:00 +08:00

tsc_deadline_timer.c

hv/mod_timer: make timer into an arch-independent module

2021-05-18 16:43:28 +08:00

tsc.c

hv/mod_timer: split tsc handling code from timer.

2021-05-18 16:43:28 +08:00

vmx.c

hv: VMPTRLD and VMCLEAR VMCS with the common APIs

2021-05-26 11:22:26 +08:00

vtd.c

hv: vtd: a minor refine about dmar_wait_completion

2021-08-10 16:36:15 +08:00

wakeup.S

…