Re: [Qemu-devel] [PATCH v3] rtc: placing RTC memory region outside BQL

2018-02-22 Thread Gonglei (Arei)
Ping... Regards, -Gonglei > -Original Message- > From: Gonglei (Arei) > Sent: Monday, February 12, 2018 4:58 PM > To: qemu-devel@nongnu.org > Cc: pbonz...@redhat.com; Huangweidong (C); peter.mayd...@linaro.org; > Gonglei (Arei) > Subject: [PATCH v3] rtc: placing RTC memory region outsid

[Qemu-devel] [PATCH v3] rtc: placing RTC memory region outside BQL

2018-02-12 Thread Gonglei
As windows guest use rtc as the clock source device, and access rtc frequently. Let's move the rtc memory region outside BQL to decrease overhead for windows guests. Meanwhile, adding a new lock to avoid different vCPUs access the RTC together. I tested PCMark 8 (https://www.futuremark.com/benchma