Marcelo Tosatti 3b6f485275 kvm: reuse per-vcpu stats fd to avoid vcpu interruption ... A regression has been detected in latency testing of KVM guests. More specifically, it was observed that the cyclictest numbers inside of an isolated vcpu (running on isolated pcpu) are: Where a maximum of 50us is acceptable. The implementation of KVM_GET_STATS_FD uses run_on_cpu to query per vcpu statistics, which interrupts the vcpu (and is unnecessary). To fix this, open the per vcpu stats fd on vcpu initialization, and read from that fd from QEMU's main thread. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2023-06-26 10:23:01 +02:00
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hvf	accel/hvf: Report HV_DENIED error	2023-06-13 11:28:58 +02:00
kvm	kvm: reuse per-vcpu stats fd to avoid vcpu interruption	2023-06-26 10:23:01 +02:00
qtest	meson: Replace CONFIG_SOFTMMU -> CONFIG_SYSTEM_ONLY	2023-06-20 10:01:30 +02:00
stubs	meson: Replace CONFIG_SOFTMMU -> CONFIG_SYSTEM_ONLY	2023-06-20 10:01:30 +02:00
tcg	accel/tcg/cpu-exec: Use generic 'helper-proto-common.h' header	2023-06-20 10:01:30 +02:00
xen	accel/xen: Fix DM state change notification in dm_restrict mode	2023-03-23 09:56:54 +00:00
accel-blocker.c	accel: introduce accelerator blocker API	2023-01-11 09:59:39 +01:00
accel-common.c	gdbstub: move sstep flags probing into AccelClass	2022-10-06 11:53:41 +01:00
accel-softmmu.c	*: Add missing includes of qemu/error-report.h	2023-03-22 15:06:57 +00:00
accel-softmmu.h	accel: replace struct CpusAccel with AccelOpsClass	2021-02-05 10:24:15 -10:00
accel-user.c	accel: extend AccelState and AccelClass to user-mode	2021-02-05 10:24:15 -10:00
dummy-cpus.c	accel/qtest: Support qtest accelerator for Windows	2022-10-28 11:17:12 +02:00
Kconfig	Add NVMM accelerator: configure and build logic	2021-05-04 14:15:34 +02:00
meson.build	meson: Replace softmmu_ss -> system_ss	2023-06-20 10:01:30 +02:00