Augustin Cavalier bb2808d615 bootloader: Implement TSC calibration via hypervisor CPUID leaf. ... While debugging some problems on the HaikuPorts build VMs, mmlr noticed their clocks had an alarming amount of drift. This prompted an investigation into TSC calibration mechanisms, and the discovery that there is a VM-specific one which we did not implement. This mechanism is more accurate than counting cycles on VMs where cycles can be "stolen" (the probable cause of the aforementioned clock drift.) Tested in VMware (works out of the box) and on QEMU/KVM (may need TSC frequency specified or a host with invariant TSC.) Change-Id: I4ccfdb2e4e2621404ec9026e7106c02bf96faf18 Reviewed-on: https://review.haiku-os.org/c/haiku/+/7063 Reviewed-by: waddlesplash <waddlesplash@gmail.com>		2023-10-25 00:53:55 +00:00
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build	elf: add PT_RISCV_ATTRIBUTES program header	2023-09-25 15:20:13 +00:00
compatibility	headers/compatibility/bsd: Update headers to remove BSD advertising clause.	2023-09-21 18:38:10 -04:00
config	riscv: cleanup architecture macro checks	2021-09-01 18:04:59 +00:00
cpp	userlandfs: use std::bitset for FSCapabilities	2023-07-10 06:27:18 +00:00
glibc	Make public glibc header printf.h usable.	2013-07-17 18:07:56 +02:00
libs	Icon-O-Matic: Add perspective transformations	2023-08-22 09:44:49 +00:00
os	elf: add PT_RISCV_ATTRIBUTES program header	2023-09-25 15:20:13 +00:00
posix	headers: Define static_assert for C11	2023-09-04 05:58:31 +00:00
private	bootloader: Implement TSC calibration via hypervisor CPUID leaf.	2023-10-25 00:53:55 +00:00
tools	cppunit: Enable CPPUNIT_HAVE_SSTREAM for the non-legacy GCC.	2022-03-29 19:09:38 -04:00